Quantitative adding device for fly ash and waste calcium powder

Abstract

The utility model discloses a coal ash and waste calcium powder quantitative adding device which comprises a mixing tank and screening frames, the screening frames are symmetrically arranged at the top end of the mixing tank, crushing frames are installed at the top ends of the screening frames, discharging frames are installed at the bottom ends of the screening frames, and the discharging frames are connected with the crushing frames. Stepping motors are installed on the outer walls of the discharging frames correspondingly, driving shafts are movably installed in the discharging frames correspondingly and connected with the output ends of the stepping motors, discharging rollers are arranged on the surfaces of the driving shafts correspondingly, multiple sets of grooves are formed in the surfaces of the discharging rollers at equal intervals correspondingly, and the discharging rollers are arranged in the grooves correspondingly. And left limiting plates are arranged on the inner walls, on one sides of the discharging rollers, of the discharging frame. According to the utility model, not only can multiple refined raw material screening and overflowed raw material scraping be realized to ensure that the volume of the raw materials is kept consistent, more refined raw materials can be conveniently provided for finished products and the input quantity of the raw materials can be conveniently adjusted and controlled, but also the quality of the finished products and the accuracy of quantitative input of the raw materials are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of quantitative addition devices, specifically a quantitative addition device for fly ash and waste calcium powder. Background Technology

[0002] Autoclaved aerated concrete (AAC), as a mainstream infill material for building frame structures, primarily relies on lime, cement, and sand as raw materials. Under the current environment of energy conservation, emission reduction, cost reduction, and efficiency improvement, how to enhance product performance and reduce costs by incorporating external raw materials has become a major research and development direction. The key focus of this project is the fundamental theoretical research and practical application of fly ash and waste calcium powder in their rational proportions. When using fly ash and waste calcium powder to produce AAC, it is necessary to ensure a fixed ratio, requiring precise measurement of each addition. Traditional methods of quantitative addition often involve manual weighing, which is labor-intensive and inefficient. To address this, a quantitative addition device for fly ash and waste calcium powder is proposed.

[0003] For example, the material quantitative addition device disclosed in the authorization announcement number CN221471733U includes a mixing box, the bottom of which has a discharge port and a rotating assembly on the top outer wall of the mixing box. The rotating assembly includes a rotating frame, and the bottom of the rotating frame is rotatably mounted on the outer wall of the mixing box through a bearing. Four sets of weighing cylinders are fixed at equal intervals on the top of the rotating frame.

[0004] Although it achieves horizontal movement of the toothed plate driven by an electric push rod, and the toothed plate meshes with the second gear, thereby driving the weighing cylinder to flip along the connecting frame to collect and deliver the additives, compared with the existing technology, it collects and weighs the additives delivered from the storage box through the weighing cylinder. After reaching the predetermined weight, the weighing cylinder flips and pours the material into the mixing box. At the same time, the discharge port of the storage box is sealed, which can ensure accurate weighing and delivery of the additives, maintain the precise ratio of feed processing, avoid waste of additives, replace manual feeding, and improve efficiency;

[0005] However, it does not solve the problem that existing quantitative addition devices are not conducive to multiple fine screening of raw materials and scraping off overflowing raw materials to ensure consistent raw material volume. This is not conducive to providing more refined raw materials for finished products and to adjusting and controlling the amount of raw material input, thus affecting the quality of finished products and the accuracy of raw material quantitative input. Utility Model Content

[0006] The purpose of this invention is to provide a quantitative addition device for fly ash and waste calcium powder, in order to solve the problems mentioned in the background art, such as the inconvenience of multiple fine screening of raw materials and scraping off overflowing raw materials to ensure consistent raw material volume, which is not conducive to providing more refined raw materials for finished products and adjusting and controlling the amount of raw material input, thus affecting the quality of finished products and the accuracy of raw material quantitative input.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quantitative addition device for fly ash and waste calcium powder, comprising a mixing tank and a screening frame. A screening frame is symmetrically arranged at the top of the mixing tank. A crushing frame is installed at the top of each screening frame. A discharge frame is installed at the bottom of each screening frame. A stepper motor is installed on the outer wall of each discharge frame. A drive shaft is movably installed inside each discharge frame and connected to the output end of the stepper motor. A discharge roller is provided on the surface of each drive shaft. Multiple sets of equally spaced grooves are provided on the surface of each discharge roller. A left limiting plate is provided on the inner wall of the discharge frame on one side of each discharge roller, and the discharge roller is slidably connected to the left limiting plate. A right limiting plate is provided on the inner wall of the discharge frame on the other side of each discharge roller, and the right limiting plate is slidably connected to the discharge roller.

[0008] Preferably, the inner walls of the screening frame are symmetrically provided with tracks, and a screen frame is provided between the two sets of tracks.

[0009] Preferably, two sets of movable wheels are symmetrically arranged on the outer wall of the screen frame, and the screen frame is slidably connected to the track through the movable wheels.

[0010] Preferably, a screening motor is provided on the inner wall of the screening frame on one side of the screening frame, and a rotating disk is provided at the output end of each screening motor.

[0011] Preferably, a long connecting arm is movably installed at the eccentric position at the top of the rotating disk, and a short connecting arm is movably installed at the end of the long connecting arm away from the rotating disk, and the short connecting arm is movably connected to the screen frame.

[0012] Preferably, two sets of movable shafts are movably installed inside the crushing frame, and crushing rollers are provided on the surface of the movable shafts inside the crushing frame, and the two sets of crushing rollers mesh with each other.

[0013] Preferably, the movable shaft surface outside the crushing frame is provided with meshing gears, and the two sets of meshing gears mesh with each other.

[0014] Preferably, a crushing motor is provided on the outer wall of the crushing frame, and the output end of the crushing motor is connected to a set of movable shafts.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the quantitative addition device not only realizes multiple fine screening of raw materials and scrapes off the overflowing raw materials to ensure that the raw material volume remains consistent, which facilitates the provision of more refined raw materials for finished products and the adjustment and control of the amount of raw material input, but also improves the quality of finished products and the accuracy of raw material quantitative input.

[0016] (1) When producing autoclaved aerated concrete products, fly ash and waste calcium powder need to be added quantitatively to the mixing tank. At this time, the fly ash and waste calcium powder should be weighed and poured into two sets of crushing frames respectively. Turn on the crushing motor, and the crushing motor drives one set of movable shafts to rotate. One set of movable shafts drives another set of movable shafts to rotate through meshing gears. The two sets of movable shafts drive the crushing rollers to rotate in opposite directions. The crushing rollers perform primary fine crushing of the raw materials. The crushed raw materials fall into the inside of the screen frame. Turn on the screening motor, and the screening motor drives the rotating disk to rotate. The rotating disk drives the crushing rollers to rotate in opposite directions. The long connecting arm swings back and forth, and with the sliding cooperation of the movable wheel and the track, the long connecting arm drives the screen frame to swing back and forth inside the screening frame through the short connecting arm. The screen frame causes the raw material to shake. The raw material smaller than the diameter of the holes on the surface of the screen frame falls into the inside of the discharge frame, while the raw material larger than the diameter of the holes on the surface of the screen frame remains inside the screen frame for a second fine screening of the raw material. The diameter of the raw material determines the quality of the finished product. The smaller the diameter, the higher the quality of the finished product. This achieves multiple fine screening of raw materials, which facilitates the provision of more refined raw materials for the finished product and improves the quality of the finished product.

[0017] (2) The raw material slides into the inside of the groove after passing through the screening frame. Since the discharge roller is slidably connected to the left and right limit plates, the raw material will not leak from both sides to the bottom. When it is necessary to add a quantitative amount of raw material into the mixing tank, the crushing motor drives the drive shaft to rotate, the drive shaft drives the discharge roller to rotate, and the discharge roller drives the raw material in the groove to move. The left limit plate scrapes off the excess raw material on the surface of the groove. Since the volume of the groove is the same, it can be ensured that the volume of raw material in each group of grooves is the same. By controlling the number of rotations of the crushing motor, a quantitative amount of raw material can be added into the mixing tank. This realizes the scraping off of the overflowing raw material to ensure that the raw material volume remains consistent, which facilitates the adjustment and control of the amount of raw material input and improves the accuracy of the quantitative input of raw material. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a three-dimensional perspective structural diagram of the fracture frame of this utility model;

[0021] Figure 4 This is a three-dimensional perspective structural diagram of the screening frame of this utility model;

[0022] Figure 5 This is a front view cross-sectional structural diagram of the discharge frame of this utility model.

[0023] In the diagram: 1. Mixing tank; 2. Screening frame; 3. Crushing frame; 4. Stepper motor; 5. Crushing motor; 6. Crushing roller; 7. Movable shaft; 8. Meshing gear; 9. Screen frame; 10. Movable wheel; 11. Track; 12. Screening motor; 13. Rotary disk; 14. Long connecting arm; 15. Short connecting arm; 16. Discharge roller; 17. Groove; 18. Left limit plate; 19. Drive shaft; 20. Right limit plate; 21. Discharge frame. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Example 1

[0028] Please see Figure 1-5This utility model provides an embodiment of a device for quantitatively adding fly ash and waste calcium powder, comprising a mixing tank 1 and a screening frame 2. The top of the mixing tank 1 is symmetrically provided with a screening frame 2, and the top of each screening frame 2 is equipped with a crushing frame 3. The bottom of each screening frame 2 is equipped with a discharge frame 21. Each discharge frame 21 is equipped with a stepper motor 4 on its outer wall. Each discharge frame 21 is movably installed with a drive shaft 19, and the drive shaft 19 is connected to the output end of the stepper motor 4. Each drive shaft 19 is provided with a discharge roller 16 on its surface. Each discharge roller 16 is provided with multiple sets of equally spaced grooves 17 on its surface. Each discharge frame 21 on one side of the discharge roller 16 is provided with a left limiting plate 18, and the discharge roller 16 is slidably connected to the left limiting plate 18. Each discharge frame 21 on the other side of the discharge roller 16 is provided with a right limiting plate 20, and the right limiting plate 20 is slidably connected to the discharge roller 16.

[0029] When producing autoclaved aerated concrete (AAC) products, fly ash and waste calcium powder need to be added quantitatively to the mixing tank 1. First, the fly ash and waste calcium powder are weighed and poured into two sets of crushing frames 3. The crushing motor 5 is turned on, driving a set of movable shafts 7 to rotate. Under the meshing of two sets of meshing gears 8, one set of movable shafts 7 drives the other set of movable shafts 7 to rotate. The two sets of movable shafts 7 drive the crushing rollers 6 to rotate in opposite directions, performing primary fine crushing of the raw materials. The crushed material falls into the screen frame 9. The screening motor 12 is then turned on, driving the rotating disk 13 to rotate. The rotating disk 13 drives the long connecting arm 14 to swing back and forth. With the sliding cooperation between the movable wheel 10 and the track 11, the long connecting arm 14 drives the screen frame 9 to swing back and forth inside the screening frame 2 through the short connecting arm 15. The screen frame 9 drives the raw material to swing. The raw material smaller than the diameter of the holes on the surface of the screen frame 9 falls into the interior of the discharge frame 21 after passing through the screen frame 9. The raw material larger than the diameter of the holes on the surface of the screen frame 9 remains inside the screen frame 9 for a second fine screening of the raw material. The diameter of the raw material determines the quality of the finished product. The smaller the diameter, the higher the quality of the finished product. This achieves multiple fine screening of raw materials, which facilitates the provision of finer raw materials for the finished product and improves the quality of the finished product.

[0030] The inner wall of the screening frame 2 is symmetrically provided with rails 11, and a screen frame 9 is provided between the two sets of rails 11. The outer wall of the screen frame 9 is symmetrically provided with two sets of movable wheels 10, and the screen frame 9 is slidably connected to the rails 11 through the movable wheels 10.

[0031] Screening motors 12 are installed on the inner wall of screening frame 2 on one side of screen frame 9. A rotating disk 13 is installed at the output end of each screening motor 12. A long connecting arm 14 is movably installed at the eccentric position at the top of the rotating disk 13. A short connecting arm 15 is movably installed at the end of the long connecting arm 14 away from the rotating disk 13, and the short connecting arm 15 is movably connected to the screen frame 9.

[0032] Two sets of movable shafts 7 are movably installed inside the crushing frame 3. Crushing rollers 6 are provided on the surface of the movable shafts 7 inside the crushing frame 3, and the two sets of crushing rollers 6 mesh with each other.

[0033] The surface of the movable shaft 7 outside the crushing frame 3 is provided with meshing gears 8, and the two sets of meshing gears 8 mesh with each other. The outer wall of the crushing frame 3 is provided with crushing motors 5, and the output end of the crushing motors 5 is connected to a set of movable shafts 7.

[0034] The raw material slides down the screening frame 2 into the interior of the groove 17. Because the discharge roller 16 is slidably connected to the left limiting plate 18 and the right limiting plate 20, the raw material will not leak from the sides to the bottom. When it is necessary to add a quantitative amount of raw material into the mixing tank 1, the crushing motor 5 is turned on, and the crushing motor 5 drives the drive shaft 19 to rotate. The drive shaft 19 drives the discharge roller 16 to rotate, and the discharge roller 16 drives the raw material in the groove 17 to move. The left limiting plate 18 scrapes away the excess raw material on the surface of the groove 17. Because the volume of the grooves 17 is the same, it can be ensured that the volume of raw material in each set of grooves 17 is the same. By controlling the number of rotations of the crushing motor 5, a quantitative amount of raw material can be added into the mixing tank 1. This achieves the scraping of overflowing raw material to ensure that the raw material volume remains consistent, which facilitates the adjustment and control of the amount of raw material input and improves the accuracy of the quantitative input of raw material.

[0035] Work steps

[0036] When producing autoclaved aerated concrete (AAC) products, fly ash and waste calcium powder need to be added quantitatively to the mixing tank 1. First, the fly ash and waste calcium powder are weighed and poured into two sets of crushing frames 3. The crushing motor 5 drives one set of movable shafts 7 to rotate. Under the mutual meshing of two sets of meshing gears 8, one set of movable shafts 7 drives the other set of movable shafts 7 to rotate. The two sets of movable shafts 7 drive the crushing rollers 6 to rotate in opposite directions, performing primary fine crushing on the raw materials. The crushed raw materials fall into the screen frame 9. The screening motor 12 drives the rotating disk 13 to rotate, which in turn drives the long connecting arm 14 to swing back and forth. With the sliding cooperation of the movable wheel 10 and the track 11, the long connecting arm 14 drives the screen frame 9 to swing back and forth inside the screening frame 2 via the short connecting arm 15. The screen frame 9 causes the raw materials to shake. Raw materials smaller than the diameter of the holes on the surface of the screen frame 9 fall through the screen frame 9 into the discharge frame 21, while materials larger than the screen frame 9... Raw materials with surface hole diameter 9 are retained inside the screen frame 9 for further fine screening. The diameter of the raw material determines the quality of the finished product; the smaller the diameter, the higher the quality of the finished product. The raw material slides down the screening frame 2 into the groove 17. Because the discharge roller 16 is slidably connected to the left limit plate 18 and the right limit plate 20, the raw material will not leak from the sides to the bottom. When it is necessary to add a quantitative amount of raw material to the mixing tank 1, the crushing motor 5 drives the drive shaft 19 to rotate, which in turn drives the discharge roller 16 to rotate. The discharge roller 16 moves the raw material in the groove 17, and the left limit plate 18 scrapes away the excess raw material on the surface of the groove 17. Since the volume of the grooves 17 is the same, it can be ensured that the volume of raw material in each set of grooves 17 is the same. By controlling the number of rotations of the crushing motor 5, a quantitative amount of raw material can be added to the mixing tank 1. The above is the complete usage of the fly ash and waste calcium powder quantitative addition device.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 device for quantitatively adding fly ash and waste calcium powder, comprising a mixing tank and a screening frame, characterized in that: The mixing tank is symmetrically equipped with a screening frame at its top. Each screening frame has a crushing frame at its top and a discharge frame at its bottom. Each discharge frame has a stepper motor installed on its outer wall and a drive shaft movably installed inside. The drive shaft is connected to the output end of the stepper motor. Each drive shaft has a discharge roller on its surface. Each discharge roller has multiple sets of equally spaced grooves on its surface. Each discharge frame inner wall on one side of the discharge roller has a left limiting plate, and the discharge roller is slidably connected to the left limiting plate. Each discharge frame inner wall on the other side of the discharge roller has a right limiting plate, and the right limiting plate is slidably connected to the discharge roller.

2. The fly ash and waste calcium powder quantitative addition device according to claim 1, characterized in that: The inner walls of the screening frame are symmetrically equipped with tracks, and a screen frame is set between each set of tracks.

3. The fly ash and waste calcium powder quantitative addition device according to claim 2, characterized in that: Two sets of movable wheels are symmetrically arranged on the outer wall of each screen frame, and the screen frame is slidably connected to the track through the movable wheels.

4. The fly ash and waste calcium powder quantitative addition device according to claim 2, characterized in that: Each of the screening frames on one side of the screen frame is equipped with a screening motor, and each of the screening motors has a rotating disk at its output end.

5. The fly ash and waste calcium powder quantitative addition device according to claim 4, characterized in that: Each of the rotating disks has a long connecting arm movably installed at an eccentric position at the top. Each of the long connecting arms has a short connecting arm movably installed at the end away from the rotating disk, and the short connecting arm is movably connected to the screen frame.

6. The device for quantitatively adding fly ash and waste calcium powder according to claim 1, characterized in that: The crushing frame has two sets of movable shafts installed inside, and each movable shaft inside the crushing frame is equipped with a crushing roller, and the two sets of crushing rollers mesh with each other.

7. The device for quantitatively adding fly ash and waste calcium powder according to claim 1, characterized in that: The moving shaft surface outside the crushing frame is provided with meshing gears, and the two sets of meshing gears mesh with each other.

8. The device for quantitatively adding fly ash and waste calcium powder according to claim 1, characterized in that: Each of the crushing frames is equipped with a crushing motor on its outer wall, and the output end of the crushing motor is connected to a set of movable shafts.

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