A high-efficiency anti-clogging device for concrete mixer powder feeding

Abstract

This utility model relates to the field of concrete production technology, specifically to a high-efficiency anti-clogging device for concrete mixer powder. It includes a buffer pipe, a cement storage silo, a screw conveyor, and an anti-clogging mechanism. The buffer pipe is connected to the outlet flange of the cement storage silo. The screw conveyor is installed below the buffer pipe. The anti-clogging mechanism is connected inside the buffer pipe and consists of a clearing module and a flow guiding module, which are arranged parallel from top to bottom along the central axis of the buffer pipe. In this utility model, the vibrating motor in the clearing module generates vibration, which is transmitted to the clearing component through the vibrating element. This causes the auxiliary rods to disturb the powder, disrupting its compaction. The spirally distributed auxiliary rods can widely contact the powder, making the originally compacted or bridged powder loose.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, specifically to a high-efficiency anti-clogging device for the discharge of powder in a concrete mixer. Background Technology

[0002] The main function of commercial concrete silos is to store cement. Cement silos are generally large in volume and can store a large amount of cement to ensure a sufficient cement supply during construction, improve construction efficiency, and protect the cement from moisture contamination, which could degrade the cement quality.

[0003] Chinese Patent CN222808628U discloses a non-clogging ready-mixed concrete silo, comprising a silo body for support, a threaded rod, a discharge box, and a support frame. The threaded rod is threaded to the outside, and scrapers are fixedly connected to both ends of the mixing rod. The discharge box has an internal buffer mechanism, including a baffle, a sliding rod, and a first spring. The lower end of the discharge box is fixedly connected to the silo body, and the lower end of the support frame is fixedly connected to a second motor. This non-clogging ready-mixed concrete silo can resist falling cement, buffering it and preventing excessively fast falling cement from impacting the inner wall of the silo for extended periods, thus reducing the silo's lifespan. It also prevents cement from clumping and hardening if stored for extended periods without use, and avoids excessive cement buildup that could clog the discharge port. It is convenient to use.

[0004] However, in the above technical solution, the eccentric wheel is rotated to drive the hammer, which is tightly attached to the left end of the eccentric wheel, to move intermittently left and right. This causes the hammer to move left and right inside the support frame to avoid blockage of the discharge port. However, the intermittent left and right movement of the hammer can only affect a local area of ​​the discharge port and cannot effectively disturb the cement in a large area of ​​the cement silo. Therefore, it cannot fundamentally guarantee the overall fluidity of the cement in the silo. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a high-efficiency anti-blocking device for the discharge of powder in a concrete mixer.

[0006] The technical solution of this utility model: a high-efficiency anti-clogging device for the discharge of powder in a concrete mixer, comprising...

[0007] A buffer pipe is connected to the flange at the outlet of the cement storage silo, and a screw conveyor is installed below the buffer pipe. An anti-clogging mechanism is connected inside the buffer pipe and consists of a clearing module and a flow guiding module, which are arranged parallel to each other from top to bottom along the central axis of the buffer pipe. The clearing module consists of a vibrating element, a vibrating motor, and a clearing component. The vibrating element is connected to the buffer pipe, the vibrating motor is connected inside the vibrating element, and the clearing component is connected to one end of the vibrating element. Under vibration, it disturbs the powder and disrupts its compaction. The flow guiding module consists of a fixed frame and a guide plate. The fixed frame is connected to the buffer pipe, and the guide plate, in a conical shape, diffuses the material outwards in an umbrella-like pattern. The guide plate is connected to the fixed frame.

[0008] Preferably, the vibrating component consists of a mounting frame, elastic elements, and a movable plate. The mounting frame is connected to the buffer pipe, and the movable plate is arranged parallel to the mounting frame vertically. Multiple elastic elements distributed in a ring array are connected at both ends to the mounting frame and the movable plate, respectively, and one side of the movable plate is connected to the vibration motor.

[0009] Preferably, a protective cover is provided on the outside of the mounting frame, and the protective cover is fitted over the outside of the mounting frame and the movable plate to form a cylindrical sealed space.

[0010] Preferably, the unblocking component consists of a support rod and multiple auxiliary rods, with one end of the support rod connected to a movable plate and the multiple auxiliary rods spirally connected to the support rod.

[0011] Preferably, each auxiliary rod is fitted with a wear-resistant sleeve, and the wear-resistant sleeve is detachably connected to the auxiliary rod.

[0012] Preferably, the buffer pipeline consists of an inlet pipe, an outlet pipe, and a buffer chamber. The inlet pipe and the outlet pipe are respectively connected to the two ends of the buffer chamber. The buffer chamber is a double cone structure formed by combining two conical structures at one end.

[0013] Preferably, the guide plate has multiple fan-shaped wear-resistant plates that can be detachably connected.

[0014] Preferably, the cone angle of the deflector is 30°-60°.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: In this invention, the vibrating motor in the unblocking module generates vibration, which is transmitted to the unblocking component through the vibrating element. This causes the auxiliary rod to disturb the powder, disrupting its compacted state. The spirally distributed auxiliary rod can widely contact the powder, making the originally compacted or bridged powder loose, further preventing the powder from clogging in the buffer pipe and ensuring smooth powder flow. The guide plate in the flow guiding module is conical, which can diffuse the material outward in an umbrella-like shape. This can guide the powder that might have been concentrated in the central area of ​​the buffer pipe to the surrounding area, making the powder distribution in the buffer pipe more uniform. This avoids excessive accumulation of powder in the central area, forming a flow dead zone and reducing the risk of blockage caused by powder accumulation. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model; Figure 2 for Figure 1 A cross-sectional view; Figure 3 for Figure 2 Enlarged view of the structure at point A; Figure 4 This is a schematic diagram of a buffer pipeline explosion. Reference numerals: 1. Buffer pipe; 2. Cement storage silo; 3. Screw conveyor; 4. Unblocking module; 5. Flow guiding module; 6. Vibrating component; 7. Vibrating motor; 8. Unblocking component; 9. Fixing frame; 10. Flow guide plate; 11. Mounting frame; 12. Elastic component; 13. Movable plate; 14. Protective cover; 15. Support rod; 16. Auxiliary rod; 17. Wear-resistant sleeve; 18. Feed pipe; 19. Discharge pipe; 20. Buffer silo; 21. Wear-resistant plate. Detailed Implementation

[0017] Example 1, as Figures 1-4 As shown, this utility model proposes an efficient anti-clogging device for concrete mixer powder, including a buffer pipe 1, a cement storage silo 2, a screw conveyor 3, and an anti-clogging mechanism. The buffer pipe 1 is connected to the discharge flange of the cement storage silo 2. The screw conveyor 3 is installed below the buffer pipe 1. The anti-clogging mechanism is connected inside the buffer pipe 1 and consists of a clearing module 4 and a flow guiding module 5. The clearing module 4 and the flow guiding module 5 are arranged parallel from top to bottom along the central axis of the buffer pipe 1. The clearing module 4 consists of a vibrating element 6, a vibrating motor 7, and a clearing component 8. The vibrating element 6 is connected to the buffer pipe 1, the vibrating motor 7 is connected inside the vibrating element 6, and the clearing component 8 is connected to one end of the vibrating element 6. Under the action of vibration, the powder is disturbed and its compaction is broken. The flow guiding module 5 consists of a fixed frame 9 and a flow guiding plate 10. The fixed frame 9 is connected to the buffer pipe 1, and the flow guiding plate 10 is conical in shape and diffuses the material outward in an umbrella-like shape. The flow guiding plate 10 is connected to the fixed frame 9.

[0018] Example 2, as Figures 2-4 As shown, this utility model proposes a high-efficiency anti-clogging device for concrete mixer powder feeding. Compared with Embodiment 1, this embodiment describes the detailed structure of the anti-clogging mechanism. The vibrating component 6 consists of a mounting frame 11, elastic elements 12, and a movable plate 13. The mounting frame 11 is connected to the buffer pipe 1. The movable plate 13 is arranged parallel to the mounting frame 11. Multiple elastic elements 12 distributed in a ring array are connected to the mounting frame 11 and the movable plate 13 at both ends respectively. One side of the movable plate 13 is connected to the vibration motor 7. A protective cover 14 is provided on the outside of the mounting frame 11. The protective cover 14 is fitted on the outside of the mounting frame 11 and the movable plate 13 to form a cylindrical sealed space. The protective cover 14 is of the accordion type, but is not limited to the type that can prevent external cement from affecting the normal use of the vibration motor 7 and the elastic element 12. The unblocking component 8 consists of a support rod 15 and multiple auxiliary rods 16. One end of the support rod 15 is connected to the movable plate 13, and the multiple auxiliary rods 16 are spirally connected to the support rod 15. The auxiliary rods 16 directly contact the blocked cement to unblock and disturb it, preventing it from causing abnormal material discharge. Each auxiliary rod 16 is fitted with a wear-resistant sleeve 17, which is detachably connected to the auxiliary rod 16. The wear-resistant sleeve 17 can be made of the same material as the wear-resistant plate 21 to reduce the wear on the auxiliary rod 16 and reduce the later maintenance cost. The inner wall of the wear-resistant sleeve 17 should be provided with a connecting thread to be detachably connected to the external thread on the auxiliary rod 16. The buffer pipe 1 consists of an inlet pipe 18, an outlet pipe 19, and a buffer chamber 20. The inlet pipe 18 and the outlet pipe 19 are respectively connected to the two ends of the buffer chamber 20. The buffer chamber 20 is a double conical structure formed by combining two conical structures at one end. The buffer chamber 20 is composed of two conical structure flanges connected together, which facilitates disassembly and maintenance of its internal structure. Multiple fan-shaped wear-resistant plates 21 are detachably connected to the flow guide plate 10. The wear-resistant plates 21 are made of high-hardness and high-wear-resistant materials that resist abrasive wear and impact wear, such as wear-resistant steel and stainless steel, to prevent the flow guide plate 10 from being worn and producing dents and grooves that affect the normal flow guiding effect. The cone angle of the guide plate 10 is 30°-60°. When the cone angle (or half cone angle) of the guide plate is between 30° and 60°, the guide plate 10 can effectively guide the falling powder from the central area of ​​the pipe to the outside, so that the powder is evenly dispersed in an umbrella or radial shape, covering a larger pipe cross-section and reducing local flow dead zones.

[0019] In summary, when this utility model is used, the powder from the outlet of the cement storage silo 2 enters the buffer pipe 1 connected by a valve or flange. The special structure of the buffer silo 20 can initially buffer the powder coming out of the outlet of the cement storage silo 2, appropriately reducing the powder flow rate and decreasing the possibility of the powder directly impacting the structure below, thus creating conditions for subsequent stable feeding. The powder flows downward along the pipe in the buffer pipe 1, passing through the unblocking module 4 and the guiding module 5 in sequence. The guide plate 10 guides the powder falling from the upper buffer silo 20, spreading the material outward in an umbrella shape, guiding the powder that might have been concentrated in the central area of ​​the pipe to the peripheral area of ​​the pipe, making the powder distribution in the buffer pipe 1 more uniform, avoiding excessive accumulation of powder in the central area and the formation of a flow dead zone. The wear-resistant plate 21 can reduce the wear of the powder on the guide plate 10, extend the service life of the guide plate 10, and the detachable design facilitates the use of the wear-resistant plate 21. 1. Replacement after wear. After the vibrating motor 7 is started, it will generate vibration. This vibration is transmitted to the movable plate 13 through the connection between the vibrating motor 7 and the movable plate 13, and then to the mounting frame 11 and the entire vibrating component 6 through the elastic element 12. Due to the presence of the elastic element 12, the movable plate 13 can generate a certain degree of vibration relative to the mounting frame 11. This vibration is more effective and controllable. Under the action of vibration, the unblocking component 8 begins to disturb the powder, destroying the compaction state of the powder. The spirally distributed auxiliary rods 16 can contact the powder more extensively, applying vibration and disturbance to the powder, making the originally compacted or bridged powder loose. The wear-resistant sleeve 17 can reduce the friction and wear between the auxiliary rods 16 and the powder during vibration, extending the service life of the auxiliary rods 16. The detachable design makes it easy to replace the wear-resistant sleeve 17 after wear. After passing through the guide module 5, the cement powder enters the screw conveyor 3 and is then transported to the outside.

[0020] 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 high-efficiency anti-clogging device for the feeding of powder in a concrete mixer, characterized in that, include A buffer pipe (1) is connected to the discharge flange of the cement storage silo (2), and a screw conveyor (3) is installed below the buffer pipe (1). The anti-blocking mechanism is connected inside the buffer pipe (1). The anti-blocking mechanism consists of a dredging module (4) and a flow guiding module (5). The dredging module (4) and the flow guiding module (5) are arranged parallel from top to bottom along the central axis of the buffer pipe (1). The unblocking module (4) consists of a vibrating element (6), a vibrating motor (7) and an unblocking element (8). The vibrating element (6) is connected to the buffer pipe (1), the vibrating motor (7) is connected inside the vibrating element (6), and the unblocking element (8) is connected to one end of the vibrating element (6). Under the action of vibration, the powder is disturbed and its compaction is destroyed. The flow guiding module (5) consists of a fixed frame (9) and a flow guiding plate (10). The fixed frame (9) is connected to the buffer pipe (1). The flow guiding plate (10) is conical in shape and diffuses the material outward in an umbrella-like manner. The flow guiding plate (10) is connected to the fixed frame (9).

2. The high-efficiency anti-clogging device for concrete mixer powder according to claim 1, characterized in that, The vibrating component (6) consists of a mounting frame (11), an elastic component (12), and a movable plate (13). The mounting frame (11) is connected to the buffer pipe (1). The movable plate (13) is arranged parallel to the mounting frame (11) vertically. The two ends of the multiple ring-shaped elastic components (12) are connected to the mounting frame (11) and the movable plate (13) respectively. One side of the movable plate (13) is connected to the vibration motor (7).

3. The high-efficiency anti-clogging device for concrete mixer powder according to claim 2, characterized in that, A protective cover (14) is provided on the outside of the mounting frame (11). The protective cover (14) is fitted on the outside of the mounting frame (11) and the movable plate (13) to form a cylindrical sealed space.

4. The high-efficiency anti-clogging device for concrete mixer powder according to claim 2, characterized in that, The unblocking component (8) consists of a support rod (15) and multiple auxiliary rods (16). One end of the support rod (15) is connected to the movable plate (13), and the multiple auxiliary rods (16) are spirally connected to the support rod (15).

5. The high-efficiency anti-clogging device for concrete mixer powder according to claim 4, characterized in that, Each auxiliary rod (16) is fitted with a wear-resistant sleeve (17), and the wear-resistant sleeve (17) is detachably connected to the auxiliary rod (16).

6. The high-efficiency anti-clogging device for concrete mixer powder according to claim 1, characterized in that, The buffer pipe (1) consists of an inlet pipe (18), an outlet pipe (19) and a buffer chamber (20). The inlet pipe (18) and the outlet pipe (19) are respectively connected to the two ends of the buffer chamber (20). The buffer chamber (20) is a double cone structure formed by combining two conical structures at one end.

7. The high-efficiency anti-clogging device for concrete mixer powder according to claim 1, characterized in that, Multiple fan-shaped wear-resistant plates (21) are detachably connected to the guide plate (10).

8. The high-efficiency anti-clogging device for concrete mixer powder according to claim 1, characterized in that, The cone angle of the guide vane (10) is 30°-60°.

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