Concrete additive raw material premixing device

Abstract

The utility model discloses a concrete additive raw material premixing device which comprises a tank body, a feeding port is formed in the top of the tank body, a vertically-arranged rotating shaft is rotationally connected into the tank body, a plurality of stirring blades are evenly arranged on the rotating shaft in the axial direction, and a plurality of guide plates located between every two adjacent stirring blades are arranged on the inner wall of the tank body. One side, close to the stirring blade, of the guide plate exceeds the edge of the stirring blade and inclines downwards. Through the arrangement of the guide plate, raw materials falling to the edge of the tank body can be stirred again, the problem that in the prior art, the raw materials directly fall to the bottom of the tank body, and consequently the raw materials are stirred insufficiently is solved, and the quality and the performance stability of additives can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete additive production, in particular to a concrete additive raw material premixing device. Background Art

[0002] Concrete additives are a class of chemical substances used to improve the performance of concrete. They are added in small amounts during the concrete preparation process, usually accounting for less than 5% of the cement mass. These additives can significantly improve the working performance, mechanical properties and durability of concrete.

[0003] In the production process of concrete additives, various raw materials of concrete additives need to be premixed. This process is an important step to ensure the quality and performance stability of additives. Premixing is to use a mixer to evenly mix various raw materials in a certain proportion. Due to the simple structure of traditional mixers, some unevenly mixed raw materials will fall directly from the edge of the mixing tank to the bottom of the tank, resulting in insufficient mixing and uneven mixing, which affects the quality of the additives. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a concrete additive raw material premixing device to make the concrete additive raw materials mixed more uniformly.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A concrete additive raw material premixing device comprises a tank body, a feeding port is arranged on the top of the tank body, a rotating shaft arranged vertically is rotatably connected in the tank body, a plurality of stirring blades are evenly arranged on the rotating shaft along the axial direction, a plurality of guide plates located between two adjacent stirring blades are arranged on the inner wall of the tank body, and a side of the guide plate close to the stirring blade exceeds the edge of the stirring blade and is inclined downward.

[0007] Principle of the utility model:

[0008] After the various raw materials of additives enter the tank from the feed inlet, the stirring blades rotate to stir and mix the raw materials. During the stirring process, part of the raw materials will be thrown to the edge of the tank and then fall onto the guide plate. Because the guide plate is tilted downward and exceeds the edge of the stirring blade, this part of the raw materials will fall back onto the next stirring blade for further stirring.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The guide plate provided in the present solution can guide the raw materials that fall to the edge of the tank body, so that the raw materials fall back to the next stirring blade for re-stirring. Through this setting, the problem of raw materials falling directly into the bottom of the tank, resulting in insufficient stirring of the raw materials in the prior art can be solved. The raw materials are stirred multiple times, which makes the raw materials mixed more evenly, and can greatly improve the quality and performance stability of the additives.

[0011] As a preferred embodiment of the utility model, a scraping structure is provided above the guide plate, and the scraping structure includes a connecting rod fixed to the rotating shaft, and a scraper is fixed to the free end of the connecting rod, and the scraper is in contact with the inner wall of the tank body. The raw materials are easily attached to the inner wall of the tank body during stirring, which is not only troublesome to clean up later, but also causes waste of raw materials. By providing a scraping structure, the present solution can scrape off the raw materials attached to the inner wall while stirring, eliminating the trouble of subsequent cleaning. The scraped raw materials fall back along the guide plate to the next stirring blade for stirring again, so that the raw materials can be fully mixed and utilized. In addition, the connecting rod used to connect the scraper in the present solution can also play a stirring role on the raw materials when it rotates with the rotating shaft, which can further improve the mixing degree of the raw materials.

[0012] As a preferred embodiment of the utility model, the width of the scraper is equal to the distance between two adjacent guide plates. In this solution, the width of the scraper can fully cover the inner wall of the tank body, ensuring that the raw materials attached to the inner wall are completely scraped off.

[0013] As a preferred embodiment of the utility model, the guide plate is a circular plate, and the upper end of the circular plate is inclined inward. In this solution, the guide plate is set as a circular plate, and the circular plate can fully guide the edge of the tank body.

[0014] As a preferred embodiment of the utility model, the stirring blade is provided with a plurality of through holes for the raw materials to pass through. The through holes provided in this scheme can reduce the resistance of stirring on the one hand, and increase the contact area between the raw materials and the stirring blade on the other hand, improve the mixing effect, and make the raw materials mixed more fully and evenly.

[0015] As a preferred embodiment of the utility model, the bottom of the tank is provided with a discharge port, and the inner bottom surface of the tank is funnel-shaped. In this solution, the inner bottom surface of the tank is arranged in a funnel shape, which is convenient for discharging materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is a cross-sectional view of the tank body in the embodiment of the utility model.

[0018] Reference numerals include:

[0019] Tank body 1, rotating shaft 2, stirring blade 3, guide plate 4, scraper 5, connecting rod 6, feed port 7, discharge port 8, supporting frame 9. DETAILED DESCRIPTION

[0020] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0021] In the description of the present application, the terms "top", "bottom", "one end", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0022] See also Figure 1 and Figure 2 As shown, this embodiment discloses a concrete additive raw material premixing device, including a tank body 1, the tank body 1 is placed on a support frame 9, a motor is installed on the top of the tank body 1, the output shaft of the motor is downwardly penetrated into the tank body 1 and fixedly connected to a rotating shaft 2, and four stirring blades 3 are evenly fixed along the axial direction on the rotating shaft 2. Two feed ports 7 are opened on the top of the tank body 1, and after various raw materials of the additive enter the tank body 1 from the feed ports 7, the stirring blades 3 rotate to stir and mix the raw materials.

[0023] The stirring blade 3 is provided with a plurality of through holes for the raw materials to pass through. By providing the through holes, the contact area between the raw materials and the stirring blade 3 can be increased while reducing the stirring resistance, thereby improving the stirring effect and making the raw materials mixed more fully and evenly.

[0024] The inner wall of the tank body 1 is integrally formed with three guide plates 4, which are respectively located between two adjacent stirring blades 3. The guide plates 4 are circular plates, and the upper end faces of the circular plates are inclined downward inward, and the innermost side of the guide plates 4 exceeds the edge of the stirring blade 3. During the stirring process, part of the raw materials will be thrown to the edge of the tank body 1, and under the action of their own weight, the raw materials will fall onto the guide plates 4 and fall back along the guide plates 4 to the next stirring blade 3 for further stirring.

[0025] A scraping structure is provided above each guide plate 4. Specifically, the scraping structure includes a connecting rod 6 fixed to the rotating shaft 2. A scraper 5 that fits the inner wall of the tank body 1 is fixed to the free end of the connecting rod 6. The width of the scraper 5 is equal to the distance between two adjacent guide plates 4. When in use, the rotating shaft 2 rotates to drive the scraper 5, the connecting rod 6 and the stirring blade 3 to rotate synchronously. The stirring blade 3 rotates to stir the raw materials. The scraper 5 rotates to scrape off the raw materials attached to the inner wall of the tank body 1. The connecting rod 6 rotates to further stir the raw materials. The raw materials scraped from the inner wall will fall onto the guide plate 4 and fall back along the guide plate 4 to the next stirring blade 3 for stirring again, so that the raw materials are fully mixed and utilized.

[0026] The bottom of the tank body 1 is provided with a discharge port 8, and a discharge valve is installed at the discharge port 8. The inner bottom surface of the tank body 1 is funnel-shaped. After the raw materials are evenly mixed, the discharge valve is opened, and the raw materials are discharged under the guidance of the inner bottom surface.

[0027] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A concrete additive raw material premixing device, comprising a tank body, a feed port is provided on the top of the tank body, and is characterized in that: A vertically arranged rotating shaft is rotatably connected inside the tank body, and a plurality of stirring blades are evenly arranged on the rotating shaft along the axial direction. A plurality of guide plates located between two adjacent stirring blades are arranged on the inner wall of the tank body, and the side of the guide plate close to the stirring blade exceeds the edge of the stirring blade and tilts downward.

2. The concrete additive raw material premixing device according to claim 1, characterized in that: A scraping structure is arranged above the guide plate. The scraping structure comprises a connecting rod fixed to the rotating shaft. A scraper is fixed to the free end of the connecting rod. The scraper is in contact with the inner wall of the tank.

3. The concrete additive raw material premixing device according to claim 2, characterized in that: The width of the scraper is equal to the distance between two adjacent guide plates.

4. The concrete additive raw material premixing device according to claim 1, characterized in that: The guide plate is a circular ring plate, and the upper end surface of the circular ring plate is inclined downward toward the inside.

5. The concrete additive raw material premixing device according to claim 1, characterized in that: The stirring blade is provided with a plurality of through holes for the raw materials to pass through.

6. The concrete additive raw material premixing device according to claim 1, characterized in that: The bottom of the tank body is provided with a discharge port, and the inner bottom surface of the tank body is in a funnel shape.

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