Stirring device for grouting material

Abstract

The utility model discloses a stirring device and a stirring method for grouting materials. The stirring device comprises a base, a lower stand column mounted on the base, an upper stand column mounted on the lower stand column, a stirring main machine mounted on the upper stand column, a stirring shaft fixedly connected with the output end of the stirring main machine, stirring blades fixedly connected to the stirring shaft, and a stirring pot, the stirring shaft is sleeved with a sleeve, the upper end of the sleeve is fixedly connected with the stirring main machine, and the lower end of the sleeve is fixedly connected with a cover body; the cover body is matched with the upper end of the stirring pot and is used for sealing the upper end of the stirring pot during stirring; the cover body is provided with a feeding port, and the upper end of the feeding port is fixedly connected with a feeding assembly. The continuous feeding device has the advantages that due to the design of continuous feeding, the operation convenience and efficiency are effectively improved, the requirement for manual intervention is lowered, the whole production process is smoother and more efficient, and meanwhile, simpler and more convenient working conditions are provided for operators.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry preparation, and particularly relates to a stirring device for pressure grouting material. Background Technique

[0002] In the construction of bridge engineering, after the prestressed tendons of the beam slab are tensioned and anchored, the duct should be grouted as soon as possible and completed within 48 hours. The duct pressure grouting material uses a slurry prepared with a special pressure grouting material or a special grouting agent, and the performance indexes of the pressure grouting material should meet the relevant requirements of 7.9.3 in the "Technical Specification for Construction of Highway Bridges and Culverts" JTG / T 3650-2020.

[0003] In the test method standard for inspecting the performance indexes of the grouting slurry, it is necessary to prepare the slurry. According to the requirements of 5.2.3 in "Prestressed Duct Grouting Materials for Highway Engineering" JT / T 946-2022, 3 kg of grouting material should be weighed during the test for slurry preparation. However, since the current mixing equipment stirs after feeding, due to the presence of additives in the pressure grouting material, the workability of the pressure grouting material when it meets water is poor, and the pressure grouting material is prone to adhere to the inner wall of the mixing pot, resulting in insufficient mixing of the slurry and uneven slurry. If the method of pre-manually mixing and then adding it to the mixing equipment for high-speed stirring is adopted, this kind of operation is relatively cumbersome and the efficiency is also low. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a stirring device for pressure grouting material.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A stirring device for pressure grouting material, including a base, a lower column installed on the base, an upper column installed on the lower column, a stirring main machine installed on the upper column, a stirring shaft fixedly connected to the output end of the stirring main machine, stirring blades fixedly connected to the stirring shaft, and a mixing pot; a sleeve is sleeved on the stirring shaft, the upper end of the sleeve is fixedly connected to the stirring main machine, and the lower end of the sleeve is fixedly connected with a cover body; the cover body is adapted to the upper end of the mixing pot and is used for closing the upper end of the mixing pot during stirring; a feeding port is arranged on the cover body, and a feeding assembly is fixedly connected to the upper end of the feeding port.

[0007] Preferably, the feeding port is rectangular, and its long side is tangent to the concentric circle at this part of the mixing pot; a downward-extending feeding pipe is arranged at the feeding port, and the lower part of the feeding pipe close to the center of the mixing pot is arc-shaped, so that the feeding pipe has a structure with a large upper end and a small lower end.

[0008] Preferably, a vibrator is fixedly connected to the outer wall of the feeding assembly.

[0009] Preferably, the feeding assembly includes a material guiding pipe fixedly connected to the feeding port and a hopper body fixedly connected to the material guiding pipe; the material guiding pipe includes an inclined section that inclines outward and is fixedly connected to the feeding port, and a vertical pipe section fixedly connected to the inclined section; the hopper body is fixedly connected to the vertical pipe section through a flange structure.

[0010] Preferably, a vibrator is fixedly connected to the outer wall of the vertical pipe section.

[0011] Preferably, the cover body is made of a transparent material.

[0012] Adopting the above technical solution, the following advantages are achieved:

[0013] By improving the feeding method of the mixing pot, the present utility model realizes the continuous feeding of the pressure slurry into the mixing pot during the production process. This improvement effectively solves a problem existing in the traditional process, that is, the pressure slurry is easily adhered to the inner wall of the mixing pot, resulting in insufficient and uneven mixing of the slurry. Through the continuous and stable feeding method, not only the occurrence of the pressure slurry sticking to the wall is significantly reduced, but also the mixing effect of the slurry is greatly improved, ensuring the quality consistency of the final product. In addition, this continuous feeding design effectively improves the operation convenience and efficiency, reduces the need for manual intervention, thereby making the entire production process more smooth and efficient, and at the same time providing a more convenient working condition for the operators. Description of the Drawings

[0014] Figure 1 is the front view of the present utility model;

[0015] Figure 2 is Figure 1 the left view of;

[0016] Figure 3 is Figure 1 the top view of;

[0017] Figure 4 is Figure 3 the sectional view along A-A in;

[0018] Figure 5 is Figure 4 the enlarged view of part B in;

[0019] Figure 6 is Figure 1 the perspective view of;

[0020] Figure 7 is Figure 6 the state diagram when the cover body in is opened.

[0021] In the figure:

[0022] 1 - Base, 2 - Lower column, 3 - Upper column, 4 - Mixing main unit, 5 - Mixing shaft, 6 - Mixing blades, 7 - Mixing pot, 8 - Sleeve, 9 - Cover, 10 - Feeding port, 11 - Feeding assembly, 12 - Vibrator, 13 - Feed pipe, 14 - Hopper body, 15 - Inclined section, 16 - Vertical pipe section, 17 - Flange structure, 18 - Guide pipe. Detailed implementation manners

[0023] The following further describes the detailed implementation manners of the present utility model in conjunction with the accompanying drawings. It should be noted here that the description of these implementation manners is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various implementation manners of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] As shown in the attached Figures 1-7 figures, a stirring device for grouting material includes a base 1, a lower column 2 installed on the base 1, an upper column 3 installed on the lower column 2, a mixing main unit 4 installed on the upper column 3, a mixing shaft 5 fixedly connected to the output end of the mixing main unit 4, mixing blades 6 fixedly connected to the mixing shaft 5, and a mixing pot 7; a sleeve 8 is sleeved on the mixing shaft 5, the upper end of the sleeve 8 is fixedly connected to the mixing main unit 4, and the lower end of the sleeve 8 is fixedly connected to a cover 9; the cover 9 is adapted to the upper end of the mixing pot 7 and is used for closing the upper end of the mixing pot 7 during stirring; a feeding port 10 is arranged on the cover 9, and a feeding assembly 11 is fixedly connected to the upper end of the feeding port 10.

[0025] As a preferred technical solution of this embodiment, the feeding port 10 is rectangular, and its long side is tangent to the concentric circle at this position of the mixing pot 7; a downwardly extending feed pipe 13 is arranged at the feeding port 10, and the lower part of the side of the feed pipe 13 close to the center of the mixing pot 7 is arc-shaped, so that the feed pipe 13 has a structure with a larger upper end and a smaller lower end. By making the long side of the feeding port 10 tangent to the concentric circle at this position of the mixing pot 7 and making the lower part of the side of the feed pipe 13 close to the center of the mixing pot 7 arc-shaped, the resistance of the feed pipe 13 to the liquid-solid mixture in the mixing pot 7 can be minimized; at the same time, by arranging the downwardly extending feed pipe 13, it can be avoided that the powder adheres to the cover 9 when entering the mixing pot 7 and cannot be effectively mixed with the water in the mixing pot 7, ensuring the most uniform mixing and the liquid-solid ratio meeting the design requirements to the greatest extent.

[0026] As a preferred technical solution of this embodiment, the feeding assembly 11 includes a guide pipe 18 fixedly connected to the feeding port 10 and a hopper body 14 fixedly connected to the guide pipe 18; the guide pipe 18 includes an inclined section 15 that inclines outward and is fixedly connected to the feeding port 10, and a vertical pipe section 16 fixedly connected to the inclined section 15; the hopper body 14 is fixedly connected to the vertical pipe section 16 through a flange structure 17. By arranging the inclined section 15, it can be ensured that the hopper body 14 does not interfere with the mixing main unit 4.

[0027] As a further improved technical solution of this embodiment, a vibrator 12 is fixedly connected to the outer wall of the feeding assembly 11. In this embodiment, the vibrator 12 is fixedly connected to the outer wall of the riser section 16, and the vibrator 12 can be a micro-vibrating motor with the model of PT-MVB5DCB12.

[0028] As a preferred technical solution of this embodiment, the cover body 9 is made of a transparent material, such as acrylic, etc., so as to facilitate observing the stirring condition of the materials in the stirring pot 7.

[0029] The stirring method of this stirring device is specifically as follows:

[0030] S1. Weigh 3 kg of grouting material, select the water-binder ratio as required, and calculate and weigh the mass of water according to the selected water-binder ratio.

[0031] S2. Wipe the stirring pot 7 and the stirring blade 6 with a wet cloth before stirring, and add the weighed water into the stirring pot 7 according to 80%-90% of the total mass; the capacity of the stirring pot 7 should not be less than 4L.

[0032] S3. Start low-speed stirring, with the rotation speed of 1000-2000 r / min. At the same time, continuously add the grouting material through the feeding port 10, and turn on the vibrator 12 to facilitate the rapid entry of the powder into the barrel. Observe the stirring state through the transparent cover body 9, and adjust the stirring speed appropriately. The feeding duration does not exceed 8 minutes.

[0033] S4. After the feeding is completed, add the remaining water into the stirring pot 7 through the feeding port 10.

[0034] S5. Conduct high-speed stirring, with the rotation speed of 2000-3000 r / min, and stir for 5 minutes.

[0035] The utility model improves the feeding method of the stirring pot 7, realizes the continuous feeding of the grouting material into the stirring pot 7 during the production process. This improvement effectively solves a problem existing in the traditional process, that is, the grouting material is easy to adhere to the inner wall of the stirring pot 7, resulting in the phenomenon that the slurry is not fully and evenly stirred. Through the continuous and stable feeding method, not only the situation of the grouting material sticking to the wall is significantly reduced, but also the stirring effect of the slurry is greatly improved, ensuring the quality consistency of the final product. In addition, this continuous feeding design effectively improves the operation convenience and efficiency, reduces the need for manual intervention, thereby making the entire production process more smooth and efficient, and at the same time providing more convenient working conditions for the operators.

[0036] The embodiments of the present utility model have been described in detail in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A stirring device for grouting material, comprising a base (1), a lower column (2) mounted on the base (1), an upper column (3) mounted on the lower column (2), a stirring main unit (4) mounted on the upper column (3), a stirring shaft (5) fixedly connected to the output end of the stirring main unit (4), a stirring blade (6) fixedly connected to the stirring shaft (5), and a stirring pot (7); characterized in that: A sleeve (8) is sleeved on the stirring shaft (5); the upper end of the sleeve (8) is fixedly connected to the stirring main body (4); the lower end of the sleeve (8) is fixedly connected to a cover body (9); the cover body (9) is matched with the upper end of the stirring pot (7) and is used to seal the upper end of the stirring pot (7) during stirring; a feeding port (10) is provided on the cover body (9), and the upper end of the feeding port (10) is fixedly connected to a feeding assembly (11).

2. The stirring device for grouting material according to claim 1, characterized in that: The feeding port (10) is rectangular, and its long side is tangent to the concentric circle of the stirring pot (7) at that location; a feeding pipe (13) extending downward is provided at the feeding port (10), and the lower part of the feeding pipe (13) close to the center of the stirring pot (7) is arc-shaped, so that the feeding pipe (13) has a structure with a large upper end and a small lower end.

3. The stirring device for grouting material according to claim 1, characterized in that: A vibrator (12) is fixedly connected to the outer wall of the feeding component (11).

4. The stirring device for grouting material according to claim 1, characterized in that: The feeding assembly (11) comprises a material guide pipe (18) fixedly connected to the feeding port (10), and a bucket body (14) fixedly connected to the material guide pipe (18); the material guide pipe (18) comprises an inclined section (15) inclined outwardly and fixedly connected to the feeding port (10), and a vertical pipe section (16) fixedly connected to the inclined section (15); the bucket body (14) is fixedly connected to the vertical pipe section (16) via a flange structure (17).

5. The stirring device for grouting material according to claim 4, characterized in that: A vibrator (12) is fixedly connected to the outer wall of the riser section (16).

6. The stirring device for grouting material according to claim 1, characterized in that: The cover body (9) is made of transparent material.

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