Automatic feeding and stirring device for high-performance concrete production

Abstract

The utility model relates to concrete processing equipment technical field discloses a kind of automatic feeding and stirring device of high-performance concrete production, including stirring drum, the bottom of stirring drum is fixedly connected and is communicated with discharge pipe, stirring drum is equipped with stirring assembly, the inner wall of stirring drum is connected with the inner wall of discharge pipe and has scraping piece, scraping piece is connected with stirring assembly, the bottom of discharge pipe is connected with plugging assembly, the below of stirring drum is equipped with support assembly, stirring drum and plugging assembly are connected with support assembly. This kind of automatic feeding and stirring device of high-performance concrete production, by setting scraping piece in the inside of stirring drum and discharge pipe, can effectively scrape the concrete attached to the inner wall of stirring drum and discharge pipe when completing concrete stirring and carrying out discharge operation. In this way, not only the amount of concrete remaining inside the stirring device is reduced, the efficiency of subsequent cleaning work is improved, but also the waste of concrete material is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete processing equipment, specifically to a high-performance automatic feeding and mixing device for concrete production. Background Technology

[0002] High-performance concrete (HPC) is a new type of high-tech concrete prepared using conventional materials and processes, possessing significant characteristics such as high durability, high workability, and high volume stability. To achieve precise mix proportion control, HPC production typically employs automated feeding systems to ensure accurate batching and delivery of raw materials. This not only guarantees the concrete's excellent impermeability and chemical corrosion resistance but also endows it with self-compacting properties, high fluidity, anti-segregation properties, as well as low drying shrinkage, low creep, low temperature deformation, and high modulus of elasticity, comprehensively meeting the stringent requirements of modern engineering for high-performance concrete materials.

[0003] However, traditional mixing equipment faces significant challenges in preparing high-performance concrete (HPC). Because HPC has a low water-cement ratio (typically less than 0.35) and incorporates mineral admixtures such as silica fume, the mixture has high viscosity and poor flowability, making it prone to forming a deposit on the inner wall of the mixing drum. Traditional equipment, such as single-shaft forced mixers, with their fixed mixing blades, struggles to effectively remove these deposits, resulting in material residue. This not only affects the mix proportion accuracy of subsequent batches of concrete, thus reducing the strength and durability of the concrete, but also brings a series of problems: significant water and labor costs are required for cleaning after each production run; the deposited concrete cannot be recycled; and the high-viscosity mixture leaves severe residue at the discharge port and on the drum wall, impacting production efficiency and material utilization. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic feeding and mixing device for high-performance concrete production, reducing material waste in the high-performance concrete production process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-performance concrete production automatic feeding and mixing device, including a mixing drum, a discharge pipe fixedly connected and connected to the bottom of the mixing drum, a mixing component inside the mixing drum, a scraper connected to the inner wall of the mixing drum and the inner wall of the discharge pipe, the scraper connected to the mixing component, a sealing component connected to the bottom of the discharge pipe, a support component below the mixing drum, and both the mixing drum and the sealing component connected to the support component.

[0006] Furthermore, the support assembly includes a base and several support legs, all of which are fixedly connected to the top of the base, and the other end of each support leg is fixedly connected to the bottom side wall of the mixing tank. The sealing assembly is connected to the upper surface of the base.

[0007] Furthermore, the sealing assembly includes a telescopic component and a sealing plate. The telescopic component is located directly below the discharge pipe and is fixedly connected to the base. One end of the sealing plate is connected to a flipping component, and the other end of the flipping component is connected to the outer wall of the discharge pipe away from the mixing tank. The sealing plate abuts against the bottom of the discharge pipe, and the telescopic end of the telescopic component abuts against the side of the sealing plate away from the discharge pipe.

[0008] Furthermore, discharge baffles are fixedly connected to both ends of the sealing plate near the discharge pipe. The two discharge baffles are slidably connected to both sides of the discharge pipe, and the flipping component is located between the two discharge baffles.

[0009] Furthermore, the overturning assembly includes an overturning block and two fixed blocks. The overturning block is fixedly connected to the outer wall of the discharge pipe away from the mixing tank. The two fixed blocks are fixedly connected to both sides of the end of the sealing plate and to the two discharge baffles respectively. The two sides of the overturning block are rotatably connected to the two fixed blocks respectively through a rotating shaft.

[0010] Furthermore, the stirring assembly includes a stirring motor, a stirring shaft, and several stirring rods. The stirring motor is fixedly connected to the top of the stirring tank. The output shaft of the stirring motor passes downward through the top of the stirring tank and is fixedly connected to the stirring shaft. The other end of the stirring shaft extends vertically downward. Several stirring rods are evenly distributed on the outer wall of the stirring shaft, and all of the stirring rods are fixedly connected to the stirring shaft. The scraper is connected to the stirring shaft and the several stirring rods.

[0011] Furthermore, the scraping component includes a spiral scraping strip and spiral blades. The spiral scraping strip extends spirally downwards along the inner wall of the mixing tank. The ends of several mixing rods away from the mixing shaft are fixedly connected to the inner side of the spiral scraping strip. The end of the mixing shaft away from the mixing motor extends downwards into the discharge pipe. The spiral blades are sleeved and fixed at the end of the mixing shaft located inside the discharge pipe. The outer side of the spiral scraping strip is slidably connected to the inner side of the mixing tank, and the outer edge of the spiral blades is slidably connected to the inner wall of the discharge pipe.

[0012] Furthermore, a scraper is slidably connected to the inner top wall of the mixing tank, and the scraper is fixedly connected to the mixing shaft.

[0013] Furthermore, the end of the scraper away from the stirring shaft is fixedly connected to the top of the spiral scraper bar.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This high-performance automatic feeding and mixing device for concrete production effectively removes concrete adhering to the inner walls of the mixing drum and discharge pipe by installing scraper components inside the mixing drum and discharge pipe during the concrete mixing and discharge process. This not only reduces the amount of residual concrete inside the mixing device and improves the efficiency of subsequent cleaning work, but also reduces concrete waste. Attached Figure Description

[0016] Figure 1 This is a front view of the overall connection structure of this utility model;

[0017] Figure 2 This is an exploded view of the connection structure between the mixing tank and the sealing assembly of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the mixing tank and discharge pipe of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the scraper and the mixing assembly of this utility model.

[0020] In the diagram: 1. Mixing tank; 2. Discharge pipe; 3. Mixing assembly; 4. Scraper; 5. Sealing assembly; 6. Support assembly; 7. Tilting assembly; 31. Mixing motor; 32. Mixing shaft; 33. Mixing rod; 41. Spiral scraper; 42. Spiral blade; 43. Scraper plate; 51. Telescopic component; 52. Sealing plate; 53. Discharge baffle; 61. Base; 62. Support leg; 71. Tilting block; 72. Fixing block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 4 A high-performance concrete production automatic feeding and mixing device includes a mixing drum 1, a discharge pipe 2 fixedly connected and connected to the bottom of the mixing drum 1, a mixing component 3 inside the mixing drum 1, a scraper 4 connected to the inner wall of the mixing drum 1 and the inner wall of the discharge pipe 2, the scraper 4 being connected to the mixing component 3, a sealing component 5 connected to the bottom of the discharge pipe 2, and a support component 6 below the mixing drum 1. Both the mixing drum 1 and the sealing component 5 are connected to the support component 6.

[0023] like Figures 1 to 4 As shown, the main improvement of this utility model lies in reducing material waste in the production process of high-performance concrete, such as... Figures 1 to 4As shown, in the high-performance concrete production automatic feeding and mixing device of this utility model, after the concrete is mixed in the mixing tank 1 by the mixing component 3, the bottom sealing component 5 is opened, and the mixed concrete is discharged from the mixing tank 1 through the discharge pipe 2. Then, the scraper 4 is used to scrape off the concrete adhering to the inner wall of the mixing tank 1 and the discharge pipe 2, thereby scraping off the concrete adhering to the inner wall of the mixing tank 1 and the discharge pipe 2 and smoothly discharging it from the bottom of the discharge pipe 2. This not only reduces the amount of concrete remaining inside the mixing device and improves the efficiency of subsequent cleaning work, but also reduces the waste of concrete materials.

[0024] like Figure 1 and Figure 2 As shown, the support assembly 6 includes a base 61 and several support legs 62. The support legs 62 are fixedly connected to the top of the base 61, and the other ends of the support legs 62 are fixedly connected to the bottom side wall of the mixing tank 1. The sealing assembly 5 is connected to the upper surface of the base 61. The support legs 62 support the entire mixing tank 1 on the base 61, while the sealing assembly 5 seals the bottom outlet of the discharge pipe 2 on the base 61, thereby ensuring that concrete does not flow out of the discharge pipe 2 during mixing.

[0025] like Figure 1 and Figure 2 As shown, the sealing assembly 5 includes a telescopic component 51 and a sealing plate 52. The telescopic component 51 is located directly below the discharge pipe 2 and is fixedly connected to the base 61. One end of the sealing plate 52 is connected to a flipping component 7, and the other end of the flipping component 7 is connected to the outer wall of the discharge pipe 2 away from the mixing tank 1. The sealing plate 52 abuts against the bottom of the discharge pipe 2, and the telescopic end of the telescopic component 51 abuts against the side of the sealing plate 52 away from the discharge pipe 2. The telescopic component 51 pushes the sealing plate 52 upward on the base 61, which in turn causes the sealing plate 52 to rotate through the flipping component 7 and finally abut against the bottom of the discharge pipe 2, thus sealing the bottom outlet of the discharge pipe 2. The telescopic component 51 can be a hydraulic steel, cylinder or electric actuator, etc., which can push the sealing plate 52 upward. When the telescopic component 51 retracts, the concrete material in the mixing tank 1 flows downward through the discharge pipe 2, which pushes the sealing plate 52 to flip down. Then, it flows out of the mixing tank 1 along the inclined sealing plate 52, completing the concrete discharge operation.

[0026] like Figure 1 and Figure 2As shown, discharge baffles 53 are fixedly connected to both ends of the sealing plate 52 near the discharge pipe 2. The two discharge baffles 53 are slidably connected to both sides of the discharge pipe 2, and the flipping component 7 is located between the two discharge baffles 53. The discharge baffles 53 on both sides of the sealing plate 52 can block the flowing concrete during concrete discharge, preventing concrete from flowing out from both sides of the sealing plate 52. This ensures that during concrete discharge, the concrete flows down along the sealing plate 52 and the two discharge baffles 53, facilitating the collection and transfer of the discharged concrete.

[0027] like Figures 1 to 3 As shown, the flipping assembly 7 includes a flipping block 71 and two fixing blocks 72. The flipping block 71 is fixedly connected to the outer wall of the discharge pipe 2 away from the mixing tank 1. The two fixing blocks 72 are respectively fixedly connected to both sides of the end of the sealing plate 52 and to two discharge baffles 53. The two sides of the flipping block 71 are rotatably connected to the two fixing blocks 72 via rotating shafts. The sealing plate 52 rotates on both sides of the flipping block 71 via the two fixing blocks 72, realizing the flipping operation of the sealing plate 52 at the bottom of the discharge pipe 2.

[0028] like Figure 3 and Figure 4 As shown, the mixing assembly 3 includes a mixing motor 31, a mixing shaft 32, and several mixing rods 33. The mixing motor 31 is fixedly connected to the top of the mixing tank 1. The output shaft of the mixing motor 31 passes downward through the top of the mixing tank 1 and is fixedly connected to the mixing shaft 32. The other end of the mixing shaft 32 extends vertically downward. Several mixing rods 33 are evenly distributed on the outer wall of the mixing shaft 32, and all of the mixing rods 33 are fixedly connected to the mixing shaft 32. The scraper 4 is connected to the mixing shaft 32 and the several mixing rods 33. The mixing motor 31 drives the mixing shaft 32 to rotate, which in turn drives the multiple mixing rods 33 to rotate inside the mixing tank 1, thereby mixing the water and various concrete raw materials in the mixing tank 1.

[0029] like Figure 3 and Figure 4As shown, the scraping component 4 includes a spiral scraping strip 41 and a spiral blade 42. The spiral scraping strip 41 extends spirally downward along the inner wall of the mixing tank 1. The ends of several stirring rods 33 away from the stirring shaft 32 are fixedly connected to the inner side of the spiral scraping strip 41. The end of the stirring shaft 32 away from the stirring motor 31 extends downward into the discharge pipe 2. The spiral blade 42 is sleeved and fixed at the end of the stirring shaft 32 located in the discharge pipe 2. The outer side of the spiral scraping strip 41 is slidably connected to the inner side of the mixing tank 1, and the outer edge of the spiral blade 42 is slidably connected to the inner wall of the discharge pipe 2. During concrete scraping, the mixing motor 31 drives the mixing shaft 32 and mixing rod 33 to rotate inside the mixing drum 1, simultaneously driving the spiral scraper 41 to rotate inside the mixing drum 1. The rotating spiral scraper 41 moves and scrapes the concrete adhering to the inner wall of the mixing drum 1, gradually scraping it off and causing it to fall downwards into the discharge pipe 2. Subsequently, the rotating spiral blades 42, driven by the mixing shaft 32, gradually discharge the concrete from the discharge pipe 2. It should be noted that the spiral scraper 41 and the spiral blades 42 rotate in the same direction, and during concrete mixing, the mixing motor 31 and the spiral scraper 41 rotate in the same direction. 1. The extension direction of the spiral blade 42 is opposite to that of the spiral blade 42. Thus, the reverse rotation of the spiral blade 42 prevents the concrete raw material from being discharged from the discharge pipe 2, and causes the raw material in the discharge pipe 2 to move upward and enter the mixing tank 1 to fully participate in the concrete mixing operation. During the concrete discharge operation, the slow rotation of the mixing motor 31 allows the concrete to be slowly and controllably discharged from the discharge pipe 2 through the rotating spiral blade 42, and at the same time scrapes off the concrete adhering to the inner wall of the mixing tank 1 and the discharge pipe 2. When the concrete is completely discharged, the scraper 4 simultaneously scrapes off and discharges the concrete adhering to the inside of the mixing tank 1 and the discharge pipe 2.

[0030] like Figure 3 and Figure 4 As shown, a scraper 43 is slidably connected to the inner top wall of the mixing drum 1, and the scraper 43 is fixedly connected to the mixing shaft 32. The scraper 43 is driven by the mixing shaft 32 to rotate and move on the inner top wall of the mixing drum 1, which can scrape off the concrete adhering to the inner top wall of the mixing drum 1.

[0031] like Figure 3 and Figure 4 As shown, the end of the scraper plate 43 furthest from the mixing shaft 32 is fixedly connected to the top of the spiral scraper strip 41. The connection and fixation between the top of the spiral scraper strip 41 and the scraper plate 43 further increases the overall stability and structural strength of the spiral scraper strip 41, making it less prone to deformation and improving the scraping and cleaning effect of the concrete adhering to the inner wall of the mixing tank 1.

[0032] In addition, after the scraper 4 scrapes off and discharges the concrete adhering to the inner wall of the mixing tank 1 and the discharge pipe 2, the small amount of concrete adhering to the scraper 4 can be cleaned by subsequent operations such as rinsing with clean water. At the same time, a silicone pad can be set on the side of the sealing plate 52 that abuts against the discharge pipe 2, so that when the sealing plate 52 is flipped up and abuts against the bottom of the discharge pipe 2, the bottom of the discharge pipe 2 can be completely sealed, improving the sealing effect of the sealing plate 52 on the bottom of the discharge pipe 2 and reducing the possible leakage of internal raw materials.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-performance concrete production automatic feeding and mixing device, comprising a mixing tank (1), characterized in that: The bottom of the mixing tank (1) is fixedly connected to and connected to the discharge pipe (2). The mixing tank (1) is equipped with a mixing component (3). The inner wall of the mixing tank (1) is connected to the inner wall of the discharge pipe (2) with a scraper (4). The scraper (4) is connected to the mixing component (3). The bottom of the discharge pipe (2) is connected to a sealing component (5). The bottom of the mixing tank (1) is equipped with a support component (6). The mixing tank (1) and the sealing component (5) are both connected to the support component (6).

2. The high-performance concrete production automatic feeding and mixing device according to claim 1, characterized in that: The support assembly (6) includes a base (61) and several support legs (62). The several support legs (62) are all fixedly connected to the top of the base (61), and the other end of the several support legs (62) is fixedly connected to the bottom side wall of the mixing tank (1). The sealing assembly (5) is connected to the upper surface of the base (61).

3. The high-performance concrete production automatic feeding and mixing device according to claim 2, characterized in that: The sealing assembly (5) includes a telescopic component (51) and a sealing plate (52). The telescopic component (51) is located directly below the discharge pipe (2) and is fixedly connected to the base (61). One end of the sealing plate (52) is connected to a flipping component (7), and the other end of the flipping component (7) is connected to the outer wall of the discharge pipe (2) away from the mixing tank (1). The sealing plate (52) abuts against the bottom of the discharge pipe (2), and the telescopic end of the telescopic component (51) abuts against the side of the sealing plate (52) away from the discharge pipe (2).

4. The high-performance concrete production automatic feeding and mixing device according to claim 3, characterized in that: The sealing plate (52) is fixedly connected to two discharge baffles (53) on the side near the discharge pipe (2). The two discharge baffles (53) are slidably connected to the two sides of the discharge pipe (2) respectively, and the flipping component (7) is located between the two discharge baffles (53).

5. The high-performance concrete production automatic feeding and mixing device according to claim 4, characterized in that: The flipping assembly (7) includes a flipping block (71) and two fixing blocks (72). The flipping block (71) is fixedly connected to the outer wall of the discharge pipe (2) away from the mixing tank (1). The two fixing blocks (72) are fixedly connected to the two sides of the end of the sealing plate (52) and the two fixing blocks (72) are fixedly connected to the two discharge baffles (53). The two sides of the flipping block (71) are rotatably connected to the two fixing blocks (72) through a rotating shaft.

6. The high-performance concrete production automatic feeding and mixing device according to claim 1, characterized in that: The stirring assembly (3) includes a stirring motor (31), a stirring shaft (32), and several stirring rods (33). The stirring motor (31) is fixedly connected to the top of the stirring tank (1). The output shaft of the stirring motor (31) passes through the top of the stirring tank (1) and is fixedly connected to the stirring shaft (32). The other end of the stirring shaft (32) extends vertically downward. Several stirring rods (33) are evenly distributed on the outer wall of the stirring shaft (32), and several stirring rods (33) are fixedly connected to the stirring shaft (32). The scraper (4) is connected to the stirring shaft (32) and several stirring rods (33).

7. The high-performance concrete production automatic feeding and mixing device according to claim 6, characterized in that: The scraping component (4) includes a spiral scraping strip (41) and a spiral blade (42). The spiral scraping strip (41) extends spirally downward along the inner wall of the mixing tank (1). The ends of several stirring rods (33) away from the stirring shaft (32) are fixedly connected to the inner side of the spiral scraping strip (41). The end of the stirring shaft (32) away from the stirring motor (31) extends downward into the discharge pipe (2). The spiral blade (42) is sleeved and fixed at the end of the stirring shaft (32) located in the discharge pipe (2). The outer side of the spiral scraping strip (41) is slidably connected to the inner side of the mixing tank (1), and the outer edge of the spiral blade (42) is slidably connected to the inner wall of the discharge pipe (2).

8. The high-performance concrete production automatic feeding and mixing device according to claim 7, characterized in that: A scraper (43) is slidably connected to the inner top wall of the mixing tank (1), and the scraper (43) is fixedly connected to the mixing shaft (32).

9. The high-performance concrete production automatic feeding and mixing device according to claim 8, characterized in that: The end of the scraper (43) away from the stirring shaft (32) is fixedly connected to the top end of the spiral scraper (41).

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