A screening device for producing light calcium carbonate
By using a servo motor to drive the auger blades and belt pulley, automatic feeding and dispersion of calcium carbonate is achieved, solving the problems of low efficiency and dust pollution in existing equipment, and improving the screening efficiency and applicability of the screening device for light calcium carbonate production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BOLE YINGXUE CALCIUM CARBONATE MANFUACTURING
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-02
AI Technical Summary
Existing screening devices for producing light calcium carbonate are inefficient when manually tilted, resulting in uneven screening and dust that easily floats, affecting the environment and health.
The auger blades are driven by a servo motor and work in conjunction with a belt pulley to achieve automatic feeding and dispersion of calcium carbonate, while a telescopic tube shield prevents dust from floating.
It improved screening efficiency, reduced labor, lowered dust pollution, and enhanced the applicability of the equipment.
Smart Images

Figure CN224308970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light calcium carbonate production technology, specifically a screening device for light calcium carbonate production. Background Technology
[0002] Light calcium carbonate, also known as precipitated calcium carbonate or light calcium carbonate, requires a screening device during its production to separate internal impurities and larger particles. The screening device is a crucial piece of equipment in the production of light calcium carbonate, and its main function is to screen calcium carbonate particles to obtain the required particle size distribution.
[0003] In most existing screening devices, workers manually pour the calcium carbonate into the device. However, the calcium carbonate poured in a concentrated manner tends to accumulate, which makes it take longer to screen. This not only reduces the screening efficiency of calcium carbonate, but also increases the workload of workers due to manual feeding.
[0004] Meanwhile, some existing devices lack a structure to effectively block calcium carbonate during use. When the device vibrates, some small particles will float in the air, which makes calcium carbonate easily affect the surrounding environment and the health of the surrounding staff, thus reducing the applicability of the device. Utility Model Content
[0005] The purpose of this invention is to provide a screening device for the production of light calcium carbonate to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for producing light calcium carbonate, comprising a screening machine body and a feed shell disposed on one side thereof, and further comprising:
[0007] A fixed shell is fixed to the inner wall of the feed shell. One side of the fixed shell is connected to a guide shell, the other end of the guide shell is connected to a connecting shell, the bottom of the connecting shell is connected to a telescopic tube, the bottom of the telescopic tube is connected to a blocking shell, and a servo motor is bolted to the top of the fixed shell.
[0008] The auger blades are fixed to the output shaft of the servo motor. Both the top of the fixed shell and the connecting shell are provided with pulleys. A connecting belt is movably connected to the surface of the pulleys, and a dispersing mechanism is installed on the surface of the other pulley.
[0009] Preferably, the dispersing mechanism includes a rotating rod fixed to the bottom of the other side of the belt pulley and a rotating disk fixed to two points on its surface, and the surface of the rotating disk is provided with a discharge hole.
[0010] Preferably, a support frame is rotatably connected to the bottom of the rotating rod, and the surface of the support frame is fixedly connected to the inner wall of the blocking shell.
[0011] Preferably, a bearing seat is fixedly connected to the bottom of the auger blade, and the bottom of the bearing seat is fixedly connected to the inner wall of the feed shell.
[0012] Preferably, a guide block is fixedly connected to one side of the inner cavity of the feed shell, and the top of the guide block has an inclined structure design.
[0013] Preferably, the guide shell has an inclined structure design, with the side of the guide shell closer to the fixed shell being higher than the side closer to the telescopic tube.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention enables automatic feeding through the cooperation of a servo motor and auger blades. Furthermore, the cooperation of the belt pulley and connecting belt further disperses the calcium carbonate, resulting in more uniform dispersion and significantly improving the screening efficiency of the screening machine. It also reduces the workload for operators. Simultaneously, the combination of the blocking shell and telescopic tube effectively prevents calcium carbonate from being thrown up during vibration, reducing its impact on the surrounding environment and workers. This significantly enhances the applicability of the device and solves the problems of poor screening efficiency and limited applicability of existing devices. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a partial three-dimensional cross-sectional structural diagram of the present invention;
[0018] Figure 3 This is a partial three-dimensional cross-sectional structural diagram of the present invention;
[0019] Figure 4 This is a partial three-dimensional cross-sectional structural diagram of the present invention.
[0020] In the diagram: 1. Screening machine body; 2. Feed shell; 3. Fixed shell; 4. Guide shell; 5. Connecting shell; 6. Telescopic pipe; 7. Blocking shell; 8. Servo motor; 9. Screwdriver blades; 10. Belt pulley; 11. Connecting belt; 12. Dispersion mechanism; 121. Rotating rod; 122. Rotating disk; 123. Discharge hole; 13. Support frame; 14. Bearing seat; 15. Guide block. Detailed Implementation
[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0022] Please see Figure 1-4As shown, a screening device for producing light calcium carbonate includes a screening machine body 1. The screening machine body 1, through the cooperation of a vibrating motor and a filter screen, can screen calcium carbonate, thereby separating larger particles and foreign matter within the calcium carbonate in a timely manner, facilitating subsequent calcium carbonate production. A feed shell 2 is provided on one side of the screening machine body 1, used for temporary storage of the calcium carbonate to be screened. A fixing shell 3 is fixedly connected to the inner wall of the feed shell 2. A guide shell 4 is connected to one side of the fixing shell 3, and a connecting shell 5 is connected to the other end of the guide shell 4. A telescopic pipe 6 is connected to the bottom of the connecting shell 5, and a blocking shell 7 is connected to the bottom of the telescopic pipe 6. The surface of the blocking shell 7 cooperates with the screening machine body 1. The telescopic pipe 6 is a flexible structure. The design allows the screening machine body 1 to vibrate while driving the blocking shell 7, with the telescopic tube 6 providing cushioning. This reduces the vibration amplitude of the connecting shell 5 during use, preventing excessive vibration from affecting the subsequent guide shell 4 and fixed shell 3. A servo motor 8 is bolted to the top of the fixed shell 3, with its output shaft penetrating the interior of the fixed shell 3 and rotatably connected to the inner wall of its penetration point. An auger blade 9 is fixedly connected to the output shaft of the servo motor 8. The auger blade 9 works in conjunction with the fixed shell 3, allowing the servo motor 8 and auger blade 9 to move the calcium carbonate inside the feed shell 2 upwards during rotation, thus enabling the calcium carbonate to enter the connecting shell 5 through the guide shell 4. Inside, the material enters the screening machine body 1 through the cooperation of the telescopic pipe 6 and the baffle shell 7 for screening. This not only facilitates the feeding of the screening machine body 1 by the staff, but also, through the blocking of the baffle shell 7 and the telescopic pipe 6, it can block most of the raised dust, thus preventing calcium carbonate from being scattered in the air and effectively reducing the impact of calcium carbonate on the surrounding environment during the screening process. The bottom of the auger blade 9 is fixedly connected to the bearing seat 14, and the bottom of the bearing seat 14 is fixedly connected to the inner wall of the feed shell 2. Under this action, the bottom of the auger blade 9 can be limited by the cooperation of the bearing seat 14, so that it can be more stable when rotating, and avoid the instability during rotation affecting the movement effect of the auger blade 9 on the calcium carbonate. A guide block 15 is fixedly connected to one side of the inner cavity of the feed shell 2. The top of the guide block 15 has an inclined structure design. Under the action of the shape of the guide block 15, the calcium carbonate can be guided to approach the auger blade 9, thereby facilitating the movement of the calcium carbonate and reducing the amount of calcium carbonate residue inside the feed shell 2, effectively improving the applicability of the device. The guide shell 4 has an inclined structure design, with the side of the guide shell 4 near the fixed shell 3 being higher than the side near the telescopic tube 6. Under this action, after the auger blade 9 moves the calcium carbonate, the calcium carbonate entering the guide shell 4 can automatically move into the telescopic tube 6 by tilting, thereby avoiding the retention of calcium carbonate inside the guide shell 4 and affecting the subsequent movement effect of the calcium carbonate.Both the fixed shell 3 and the connecting shell 5 are equipped with pulleys 10 on their tops. The surface of one pulley 10 is fixedly connected to the output shaft of the servo motor 8. A connecting belt 11 is movably connected to the surface of the pulley 10 on one side, and the connecting belt 11 is movably connected to the surface of the other pulley 10. This allows both pulleys 10 to rotate synchronously when one pulley 10 rotates, facilitating subsequent use. A dispersing mechanism 12 is installed on the surface of the other pulley 10. The dispersing mechanism 12 can disperse calcium carbonate and evenly distribute it into the interior of the screening machine body 1, facilitating screening and preventing calcium carbonate from accumulating and affecting the screening effect.
[0023] The dispersing mechanism 12 includes a rotating rod 121 fixed to the bottom of the other side of the belt pulley 10. The bottom of the rotating rod 121 penetrates into the interior of the connecting shell 5 and is rotatably connected to the inner wall of its penetration point. Rotating disks 122 are fixedly connected to two points on the surface of the rotating rod 121. Several discharge holes 123 are provided on the surface of the rotating disks 122. Under this action, when the belt pulley 10 rotates, the rotating rod 121 can drive the rotating disks 122 to rotate. With the cooperation of the discharge holes 123, calcium carbonate can be dispersed... The calcium carbonate is dispersed evenly inside the screening machine body 1, which effectively improves the screening efficiency of the screening machine body 1. The bottom of the rotating rod 121 is rotatably connected to the support frame 13. The surface of the support frame 13 is fixedly connected to the inner wall of the blocking shell 7. Under this action, the rotating rod 121 can be supported by the support frame 13, so that the rotating rod 121 can be more stable when driving the rotating disk 122 to rotate, and avoid the situation where the rotating disk 122 is not stable enough when rotating, which would affect the subsequent dispersion of calcium carbonate.
[0024] It is worth noting that the technical features such as the screening machine body 1 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.
[0025] Working principle: First, the calcium carbonate to be screened is placed inside the feed shell 2. Then, the screening machine body 1 is turned on, followed by the servo motor 8. Under the action of the servo motor 8, the calcium carbonate inside the feed shell 2 is discharged into the connecting shell 5 through the guide shell 4 with the cooperation of the auger blades 9. Under the action of the weight of the calcium carbonate itself, it can fall onto the surface of the rotating disk 122, making it more convenient for the operator to screen the calcium carbonate. When the servo motor 8 rotates, the belt pulley 10 and the connecting belt 11 cooperate to drive the rotating rod 121 to rotate. In this way, the calcium carbonate is dispersed by the cooperation of the rotating disk 122 and the discharge hole 123, so that the calcium carbonate can be evenly dispersed inside the screening machine body 1, effectively improving the screening effect of the screening machine body 1. In addition, with the cooperation of the blocking shell 7 and the telescopic tube 6, dust and other particles generated during the vibration of the screening machine body 1 can be blocked, reducing the impact of calcium carbonate on the surrounding environment during the screening process and reducing the waste of calcium carbonate, effectively improving the applicability of the device.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A screening device for producing light calcium carbonate, comprising a screening machine body (1) and a feed shell (2) disposed on one side thereof, characterized in that, Also includes: A fixed shell (3) is fixed to the inner wall of the feed shell (2). One side of the fixed shell (3) is connected to a guide shell (4), and the other end of the guide shell (4) is connected to a connecting shell (5). The bottom of the connecting shell (5) is connected to a telescopic tube (6), and the bottom of the telescopic tube (6) is connected to a blocking shell (7). A servo motor (8) is bolted to the top of the fixed shell (3). The auger blades (9) are fixed to the output shaft of the servo motor (8). The top of the fixed shell (3) and the connecting shell (5) are both provided with pulleys (10). The surface of the pulleys (10) is movably connected to the connecting belt (11). The surface of the other pulley (10) is equipped with a dispersing mechanism (12).
2. The screening device for producing light calcium carbonate according to claim 1, characterized in that: The dispersing mechanism (12) includes a rotating rod (121) fixed to the bottom of the belt pulley (10) on the other side and a rotating disk (122) fixed to two places on its surface. The rotating disk (122) has a discharge hole (123) on its surface.
3. The screening device for producing light calcium carbonate according to claim 2, characterized in that: The bottom of the rotating rod (121) is rotatably connected to a support frame (13), and the surface of the support frame (13) is fixedly connected to the inner wall of the blocking shell (7).
4. The screening device for producing light calcium carbonate according to claim 1, characterized in that: The bottom of the auger blade (9) is fixedly connected to a bearing seat (14), and the bottom of the bearing seat (14) is fixedly connected to the inner wall of the feed shell (2).
5. The screening device for producing light calcium carbonate according to claim 1, characterized in that: A guide block (15) is fixedly connected to one side of the inner cavity of the feed shell (2), and the top of the guide block (15) is designed with an inclined structure.
6. The screening device for producing light calcium carbonate according to claim 1, characterized in that: The guide shell (4) is designed with an inclined structure, and the side of the guide shell (4) closer to the fixed shell (3) is higher than the side closer to the telescopic tube (6).