An apparatus for blending fly ash in cement production

Abstract

The utility model relates to building material preparation technical field discloses a fly ash blending equipment in cement preparation, including blending bucket, the blending bucket top fixedly connected with motor, motor output fixedly connected with the pivot, the pivot bottom fixedly connected with square bar, the square bar outer wall slidingly connected with outer rod, the outer rod outer wall fixedly connected with a plurality of stirring rod, a plurality of stirring rod away from the side between outer rod fixedly connected with mounting panel, the mounting panel away from the side of stirring rod is provided with scraping subassembly, the outer rod outer wall is provided with reciprocating subassembly, the scraping subassembly includes a plurality of limit board, limit board outer wall slidingly connected in the mounting panel inside. In the utility model, through motor drive pivot, square bar drives outer rod and stirring rod rotation, realizes the basic stirring to cement and fly ash. Meanwhile, the reciprocating subassembly that inclines the cylinder and the slide rod constitute, make outer rod reciprocating motion up and down, greatly expand the stirring range.

Description

Technical Field

[0001] This utility model relates to the field of building material preparation technology, and in particular to a fly ash blending device for cement preparation. Background Technology

[0002] In cement preparation, fly ash is an important admixture. By uniformly incorporating fly ash, the fluidity of the cement paste can be optimized. Because fly ash particles are mostly spherical with smooth surfaces, they can act as ball bearings, reducing the frictional resistance between cement particles and making the cement paste flow more easily at the same water-cement ratio, thus facilitating construction operations.

[0003] Traditional blending equipment has a simple mixing structure, often consisting of a simple agitator blade fixed on a single rotating shaft, which can only mix materials in a limited area. This makes it difficult for materials to be fully mixed in the blending tank, especially in areas far from the agitator blade, resulting in large fluctuations in cement product performance and making it difficult to meet the stringent requirements for cement quality stability in high-end construction projects. Therefore, a fly ash blending device for cement preparation is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fly ash blending device for cement preparation, which aims to improve the problem that it is difficult to achieve sufficient mixing in areas far from the mixing blades in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fly ash blending device for cement preparation, comprising a blending tank, a motor fixedly connected to the top of the blending tank, a rotating shaft fixedly connected to the output end of the motor, a square rod fixedly connected to the bottom of the rotating shaft, an outer rod slidably connected to the outer wall of the square rod, a plurality of stirring rods fixedly connected to the outer wall of the outer rod, an mounting plate fixedly connected between the sides of the plurality of stirring rods away from the outer rod, a scraping component provided on the side of the mounting plate away from the stirring rods, and a reciprocating component provided on the outer wall of the outer rod;

[0006] The scraping assembly includes multiple limiting plates. The outer wall of the limiting plate is slidably connected to the inside of the mounting plate. A spring is fixedly connected to one side of the limiting plate, and a connecting rod is fixedly connected to the other side of the limiting plate. A scraper is fixedly connected to the side of the connecting rod away from the limiting plate.

[0007] As a further description of the above technical solution:

[0008] The reciprocating assembly includes an inclined cylinder and a sliding rod. The inclined cylinder is fixedly connected inside the mixing tank, and the sliding rod is fixedly connected to the outer wall of the outer rod. A sliding groove is provided at the top of the inclined cylinder.

[0009] As a further description of the above technical solution:

[0010] A connecting shaft is fixedly connected to the bottom of the outer rod, and a spiral blade is fixedly connected to the outer wall of the connecting shaft.

[0011] As a further description of the above technical solution:

[0012] A feed inlet is fixedly connected to the top of the outer wall of the mixing tank, and a discharge outlet is fixedly connected to the bottom of the outer wall of the mixing tank. A valve is installed on the discharge outlet.

[0013] As a further description of the above technical solution:

[0014] The scraper is trapezoidal on the side away from the connecting rod and abuts against the inner wall of the mixing tank.

[0015] As a further description of the above technical solution:

[0016] The bottom of the slide rod is slidably connected to the inner wall of the slide groove.

[0017] As a further description of the above technical solution:

[0018] The end of the spring away from the limiting plate is fixedly connected to the inner wall of the mounting plate, and the outer wall of the connecting rod is slidably connected to the inside of the mounting plate.

[0019] As a further description of the above technical solution:

[0020] The height of the inclined cylinder and the length of the inner sliding of the outer rod on the outer wall of the square rod are equal.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, a motor drives a rotating shaft, a square rod to rotate an outer rod and a mixing rod, thereby achieving basic mixing of cement and fly ash. Simultaneously, the reciprocating assembly composed of an inclined cylinder and a sliding rod causes the outer rod to move up and down, increasing the mixing range and ensuring thorough mixing of materials at different heights. This significantly improves the uniformity of the mixture, thereby enhancing the quality stability of the cement product and ensuring consistent performance in each batch of cement.

[0023] 2. In this utility model, the scraping component on one side of the mounting plate utilizes the synergistic effect of the limiting plate, spring, connecting rod, and scraper to ensure that the scraper remains in close contact with the inner wall of the mixing tank during the mixing process. This design effectively scrapes away material adhering to the tank wall, preventing material accumulation and uneven mixing caused by material residue on the tank wall, thus ensuring long-term stable operation of the equipment and maintaining a highly efficient mixing effect. Attached Figure Description

[0024] Figure 1 This is a perspective view of a fly ash blending device for cement preparation proposed in this utility model;

[0025] Figure 2 This is a cross-sectional view of the mixing tank of a fly ash mixing device for cement preparation proposed in this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a cross-sectional view of the outer shell of a fly ash blending device for cement preparation proposed in this utility model;

[0028] Figure 5 This is a cross-sectional view of the mounting plate of a fly ash admixture device for cement preparation proposed in this utility model.

[0029] Legend:

[0030] 1. Mixing tank; 2. Motor; 3. Rotating shaft; 4. Square rod; 5. Outer rod; 6. Stirring rod; 7. Mounting plate; 8. Limiting plate; 9. Spring; 10. Connecting rod; 11. Scraper; 12. Connecting shaft; 13. Spiral blade; 14. Inclined cylinder; 15. Slide rod; 16. Slide groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3This utility model provides an embodiment of a fly ash blending device for cement preparation, comprising a blending tank 1, which is the main structure of the entire device, providing a relatively closed and stable space for the blending process of cement and fly ash. A motor 2 is fixedly connected to the top of the blending tank 1, serving as a power source to provide the necessary power for subsequent stirring and blending operations. A rotating shaft 3 is fixedly connected to the output end of the motor 2, transmitting the power of the motor 2 and driving other subsequent components to rotate. A square rod 4 is fixedly connected to the bottom of the rotating shaft 3, rotating synchronously with the rotating shaft 3. The special shape of the square rod 4 facilitates the subsequent cooperation of the outer rod 5, ensuring that the outer rod 5 can rotate with the shaft while allowing it to slide within a certain range. The outer rod 5 is slidably connected to the outer wall of the square rod 4. The ability of the outer rod 5 to slide on the square rod 4 allows the stirring range to be expanded in the vertical direction, thereby improving the uniformity of material blending. The outer wall of the outer rod 5 is fixedly connected to... Multiple stirring rods 6 are connected to the mixing tank 1. The stirring rods 6 move in a circular motion under the drive of the outer rod 5, thereby stirring the cement and fly ash inside the mixing tank 1. At the same time, the rotation of the stirring rods 6 can break up the agglomeration of materials and promote full mixing between materials. The sides of the multiple stirring rods 6 away from the outer rod 5 are fixedly connected to the mounting plate 7. The mounting plate 7 serves to connect and fix the multiple stirring rods 6, enhance the overall stability of the mixing structure, and prevent the stirring rods 6 from shaking or deforming during the mixing process. At the same time, it also provides an installation position for the subsequent scraping component. The side of the mounting plate 7 away from the stirring rods 6 is equipped with a scraping component. The scraping component can scrape off the material adhering to the inner wall of the mixing tank 1 during the mixing process, preventing the material from accumulating on the tank wall. The outer wall of the outer rod 5 is equipped with a reciprocating component. The reciprocating component can make the outer rod 5 move up and down on the square rod 4, further increasing the mixing range and effect, so that the material can be fully mixed at different heights and positions.

[0033] Reference Figure 5 The scraping assembly includes multiple limiting plates 8. The outer wall of the limiting plate 8 is slidably connected to the inside of the mounting plate 7. The limiting plate 8 is used to limit the connecting rod 10 and prevent the connecting rod 10 from sliding excessively out of the mounting plate 7. A spring 9 is fixedly connected to one side of the limiting plate 8. The spring 9 is used to provide elastic force. When the scraper 11 is resisted, the spring 9 can play a buffering role and also ensure that the scraper 11 always keeps in contact with the inner wall of the mixing tank 1, thereby improving the scraping effect. A connecting rod 10 is fixedly connected to the other side of the limiting plate 8. The connecting rod 10 is used to connect the limiting plate 8 and the scraper 11 and transmit the movement of the limiting plate 8 to the scraper 11. The side of the connecting rod 10 away from the limiting plate 8 is fixedly connected to the scraper 11. The scraper 11 contacts the inner wall of the mixing tank 1 during the stirring process and scrapes off the material adhering to the tank wall.

[0034] Reference Figure 3The reciprocating assembly includes an inclined cylinder 14 and a sliding rod 15. The inclined cylinder 14 is fixedly connected inside the mixing tank 1. The inclined cylinder 14 serves as the track for reciprocating motion and provides guidance for the movement of the sliding rod 15. The sliding rod 15 is fixedly connected to the outer wall of the outer rod 5. When the outer rod 5 rotates, the sliding rod 15 rotates with the outer rod 5. A groove 16 is provided at the top of the inclined cylinder 14. As the outer rod 5 rotates, the sliding rod 15 slides in the groove 16. Due to the inclined structure of the inclined cylinder 14, the sliding rod 15 will drive the outer rod 5 to make up-down reciprocating motion on the square rod 4 during the sliding process, thereby realizing the stirring of the stirring component at different height positions.

[0035] Reference Figure 2 The outer rod 5 is fixedly connected to the bottom of the connecting shaft 12. The connecting shaft 12 is used to connect the outer rod 5 and the spiral blade 13, and transmit the rotation of the outer rod 5 to the spiral blade 13. The spiral blade 13 is fixedly connected to the outer wall of the connecting shaft 12. During the rotation, the spiral blade 13 can stir and lift the material at the bottom of the mixing tank 1, so that the material at the bottom can participate in the entire mixing process and avoid the material from accumulating at the bottom.

[0036] Reference Figure 1 The mixing tank 1 has a feed inlet fixedly connected to the top of its outer wall. The feed inlet is used to add cement raw materials and fly ash and other materials into the mixing tank 1, which facilitates the addition of materials. The mixing tank 1 has a discharge outlet fixedly connected to the bottom of its outer wall. The discharge outlet is used to discharge the mixed materials from the mixing tank 1. A valve is installed on the discharge outlet, which can control the discharge speed and stop the discharge, making it convenient for operators to operate according to the actual situation.

[0037] Reference Figure 3 The side of the scraper 11 away from the connecting rod 10 is trapezoidal and abuts against the inner wall of the mixing tank 1. The trapezoidal design of the scraper 11 makes the scraper 11 have a better scraping effect when scraping materials, and can more effectively scrape the materials on the inner wall of the mixing tank 1. At the same time, the abutment against the inner wall of the mixing tank 1 ensures that the scraping is thorough.

[0038] Reference Figures 1-3 The bottom of the slide rod 15 is slidably connected to the inner wall of the slide groove 16. The sliding connection ensures that the slide rod 15 can slide smoothly in the slide groove 16, so that the outer rod 5 can move up and down according to the guide of the inclined cylinder 14, ensuring the normal operation of the reciprocating assembly.

[0039] Reference Figure 5 The end of the spring 9 away from the limiting plate 8 is fixedly connected to the inner wall of the mounting plate 7, and the outer wall of the connecting rod 10 is slidably connected to the inside of the mounting plate 7. The fixed connection of the spring 9 enables it to stably provide elastic force, while the sliding connection of the connecting rod 10 in the mounting plate 7 ensures that the scraping assembly can extend and retract under the action of the spring 9.

[0040] Reference Figure 3 and Figure 4 The height of the inclined cylinder 14 and the length of the outer rod 5 sliding inside the square rod 4 are equal, which ensures that when the sliding rod 15 slides in the sliding groove 16, the outer rod 5 can make up-down reciprocating movements within a suitable range, avoiding the situation of excessive or insufficient movement range, thereby ensuring the normal operation of the equipment and good mixing effect.

[0041] Working principle: When it is necessary to blend fly ash into cement, the cement raw materials and fly ash are added into the blending tank 1 through the feed port at the top of the outer wall of the blending tank 1. Then, the motor 2 is powered on and started. When the motor 2 starts, it drives the rotating shaft 3 on its output end to rotate, which causes the square rod 4 at the bottom of the rotating shaft 3 to rotate as well. The rotation of the square rod 4 drives the outer rod 5 on its outer wall to rotate, which in turn drives the multiple stirring rods 6 on the outer wall of the outer rod 5 to move in a circular motion around the central axis of the blending tank 1, thus performing preliminary mixing of the materials inside the blending tank 1.

[0042] During the rotation of the stirring rod 6, the mounting plate 7 on the outer wall of the mounting plate 7 will also rotate synchronously. At this time, the limiting plate 8 will push the connecting rod 10 to slide under the action of centrifugal force and the elastic force of the spring 9, thereby driving the scraper 11 on the connecting rod 10 to perform circumferential motion. The scraper 11 is in contact with the inner wall of the mixing tank 1. Therefore, during the rotation of the scraper 11, the material attached to the inner wall of the mixing tank 1 will be scraped off.

[0043] When the outer rod 5 rotates, it will also drive the slide rod 15 to rotate, causing the slide rod 15 to slide inside the groove 16 opened at the top of the inclined cylinder 14. Since the inclined cylinder 14 is fixed inside the mixing tank 1 and is inclined, the sliding of the slide rod 15 will drive the outer rod 5 to move up and down on the outer wall of the square rod 4, thereby causing the stirring rod 6 to stir the material at different height positions.

[0044] When the outer rod 5 rotates, it will also drive the connecting shaft 12 at its bottom to rotate. The rotation of the connecting shaft 12 will drive the spiral blades 13 on its outer wall to rotate. In turn, the spiral blades 13 will rotate to stir the material at the bottom of the mixing tank 1 and lift the material at the bottom upward, ensuring that the material at the bottom can also be fully stirred and preventing the material from settling at the bottom of the mixing tank 1.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fly ash blending device for cement preparation, comprising a blending tank (1), characterized in that: The mixing tank (1) is fixedly connected to the top of a motor (2), the output end of the motor (2) is fixedly connected to a rotating shaft (3), the bottom of the rotating shaft (3) is fixedly connected to a square rod (4), the outer wall of the square rod (4) is slidably connected to an outer rod (5), the outer wall of the outer rod (5) is fixedly connected to a plurality of stirring rods (6), the sides of the plurality of stirring rods (6) away from the outer rod (5) are fixedly connected to a mounting plate (7), the side of the mounting plate (7) away from the stirring rods (6) is provided with a scraping component, and the outer wall of the outer rod (5) is provided with a reciprocating component; The scraping assembly includes multiple limiting plates (8), the outer wall of the limiting plate (8) is slidably connected to the inside of the mounting plate (7), a spring (9) is fixedly connected to one side of the limiting plate (8), a connecting rod (10) is fixedly connected to the other side of the limiting plate (8), and a scraper (11) is fixedly connected to the side of the connecting rod (10) away from the limiting plate (8).

2. The fly ash blending equipment for cement preparation according to claim 1, characterized in that: The reciprocating assembly includes an inclined cylinder (14) and a sliding rod (15). The inclined cylinder (14) is fixedly connected inside the mixing tank (1), and the sliding rod (15) is fixedly connected to the outer wall of the outer rod (5). A groove (16) is provided on the top of the inclined cylinder (14).

3. The fly ash blending equipment for cement preparation according to claim 1, characterized in that: The bottom of the outer rod (5) is fixedly connected to a connecting shaft (12), and the outer wall of the connecting shaft (12) is fixedly connected to a spiral blade (13).

4. The fly ash blending equipment for cement preparation according to claim 1, characterized in that: The mixing tank (1) has a feed inlet fixedly connected to the top of its outer wall and a discharge outlet fixedly connected to the bottom of its outer wall. A valve is provided on the discharge outlet.

5. The fly ash blending equipment for cement preparation according to claim 1, characterized in that: The scraper (11) is trapezoidal on the side away from the connecting rod (10) and abuts against the inner wall of the mixing tank (1).

6. The fly ash blending equipment for cement preparation according to claim 2, characterized in that: The bottom of the slide rod (15) is slidably connected to the inner wall of the slide groove (16).

7. The fly ash blending equipment for cement preparation according to claim 1, characterized in that: The end of the spring (9) away from the limiting plate (8) is fixedly connected to the inner wall of the mounting plate (7), and the outer wall of the connecting rod (10) is slidably connected to the inside of the mounting plate (7).

8. The fly ash blending equipment for cement preparation according to claim 2, characterized in that: The height of the inclined cylinder (14) and the length of the outer rod (5) sliding inside the square rod (4) are equal.

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