A calcium carbonate powder classifying device

Abstract

This utility model belongs to the field of calcium carbonate powder technology, and particularly relates to a calcium carbonate powder grading device, including a grading box and a feed hopper set at the top of the grading box. A support base is installed at the bottom of the grading box, and a screen base is installed on the support base. Two sets of telescopic rods connect the bottom of the screen base to the bottom of the grading box on both sides. By installing a vibrating screen base inside the grading box, and multiple sets of detachable screen frames inside the screen base, a first motor drives two sets of cams outside the rotating rod to rotate. Under the action of the cams, two sets of pressure plates drive the screen base and telescopic rods to descend, and two sets of return springs push the telescopic rods upward. This allows the screen base to drive multiple sets of screen frames to perform sieving actions synchronously. Furthermore, a rotatable cover plate is installed at the front of the grading box. When the cover plate is opened, it facilitates quick disassembly and extraction of multiple sets of screen frames and a collection cylinder, ensuring easy unblocking of the screen frame interior and improving the convenience of equipment use.

Description

Technical Field

[0001] This utility model relates to the field of calcium carbonate powder technology, and in particular to a calcium carbonate powder grading device. Background Technology

[0002] Chinese Patent CN222943904U, authorized announcement number, discloses a calcium carbonate powder grading device, which includes a grading box. A vertical rod is vertically mounted inside the grading box and connected to the grading box via an elastic component. Multiple screens are fitted onto the outer wall of the vertical rod, and the screens are connected to the grading box via rubber pads. A pressure plate is fixed to the top of the vertical rod. A drive component is provided inside the grading box to move the pressure plate. In this solution, calcium carbonate powder is fed through the inlet at the top of the grading box. The drive component moves the pressure plate, which in turn moves the vertical rod. Simultaneously, with the cooperation of the elastic component, the vertical rod vibrates continuously, causing the multiple screens to vibrate continuously. This allows the calcium carbonate powder to be graded and screened through the multiple screens, facilitating thorough and detailed screening of the calcium carbonate powder and improving the screening quality.

[0003] However, the above-mentioned technical solutions still have the following shortcomings in actual use. Due to the certain viscosity of calcium carbonate powder, the powder is prone to clogging the mesh of the screen during long-term screening. In the existing device, the connection between the screen and the vertical rod is relatively fixed, making it difficult for the staff to quickly disassemble the screen for thorough cleaning. As the clogging worsens, the screening efficiency will be significantly reduced. Therefore, we propose a calcium carbonate powder grading device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a calcium carbonate powder grading device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a calcium carbonate powder grading device, comprising a grading box and a feed hopper disposed at the top of the grading box. A support base is installed at the bottom of the grading box, and a sieve seat is disposed on the support base. Two sets of telescopic rods are connected to the bottom of the grading box on both sides of the bottom of the sieve seat. Return springs are wound around the outside of both sets of telescopic rods. Pressure plates are installed on both sides of the top of the sieve seat. A rotating rod is installed at the top of the grading box. A first motor is installed outside the grading box, and the output end of the first motor is connected to the end of the rotating rod. Both ends of the rotating rod are connected to cams. Both sets of cams are located at the top of the two sets of pressure plates. Multiple sets of detachable sieve frames are installed inside the sieve seat. A collecting cylinder is installed inside the support base. Pull handles are installed on the outer walls of the front ends of the multiple sets of sieve frames and the collecting cylinder. A rotating seat is installed at the top of the grading box. A connecting rod is rotatably connected inside the rotating seat. A cover plate is fixed to the outer wall of the connecting rod, and a locking component is installed on the back of the cover plate.

[0006] As an improved technical solution, the locking assembly includes a roller assembly installed in the middle of the back end of the cover plate, a retainer installed at the lower end of the roller assembly, the roller assembly contacting the handle surface on multiple sets of screen frames, and the outer wall of the retainer contacting the outer wall of the handle on the collection cylinder.

[0007] As an improved technical solution, observation windows are installed on both sides of the cover plate, and high-strength transparent glass is installed in both sets of observation windows.

[0008] As an improved technical solution, the input terminals of both the first motor and the second motor are electrically connected to an external controller via wires.

[0009] As an improved technical solution, the aperture of the sieve holes at the bottom of the multiple sets of sieve frames decreases layer by layer from top to bottom.

[0010] As an improved technical solution, the roller assembly is equipped with multiple sets of rollers, and the surface of each roller is covered with a rubber sleeve.

[0011] As an improved technical solution, the outer wall of the screen frame is fully fitted with the inner wall of the screen base.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are:

[0013] I. This utility model features a vibrating screen base installed inside a grading box, with multiple detachable screen frames installed within the screen base. A first motor drives two sets of cams outside the rotating rod to rotate, causing two pressure plates to lower the screen base and telescopic rod under the action of the cams. Two sets of return springs push the telescopic rod upwards, allowing the screen base to drive multiple screen frames to perform sieving actions synchronously. Furthermore, a rotatable cover plate is installed at the front end of the grading box. When the cover plate is opened, it facilitates quick disassembly and extraction of multiple screen frames and the collection cylinder, ensuring easy unblocking of the screen frame interior and improving the convenience of equipment use.

[0014] II. This utility model effectively fixes multiple sets of screen frames and collection cylinders by having the second motor drive the cover plate to move the roller assembly and the clamping seat to press the pull handles on the outside of the multiple sets of screen frames and collection cylinders. This prevents the multiple sets of screen frames from leaving the screen base during screening. When it is necessary to remove the screen frames and collection cylinders, the second motor can drive the cover plate to rotate and open, allowing for quick disassembly of the multiple sets of screen frames and collection cylinders. This facilitates the rapid unblocking of the multiple sets of screen frames and the removal of calcium carbonate powder from the collection cylinders. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a three-dimensional structural diagram of a calcium carbonate powder grading device according to the present invention.

[0017] Figure 2 This is a first cross-sectional structural diagram of a calcium carbonate powder grading device according to the present invention.

[0018] Figure 3 This is a schematic diagram of a partial moving structure of a calcium carbonate powder grading device according to the present invention.

[0019] Figure 4 This utility model relates to a calcium carbonate powder grading device. Figure 3 A schematic diagram of the structure viewed from below.

[0020] Figure 5 This is a second cross-sectional structural diagram of a calcium carbonate powder grading device according to the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Grading box; 2. Feed hopper; 3. Support base; 4. Screen base; 5. Telescopic rod; 6. Return spring; 7. Pressure plate; 8. Rotating rod; 9. First motor; 10. Cam; 11. Screen frame; 12. Collection cylinder; 13. Pull handle; 14. Rotary seat; 15. Connecting rod; 16. Cover plate; 17. Observation window; 18. Second motor; 19. Roller assembly; 20. Locking seat. Detailed Implementation

[0023] 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.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0026] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0027] like Figures 1 to 5 As shown, this embodiment provides a calcium carbonate powder grading device. This calcium carbonate powder grading device includes a grading box 1 and a feed hopper 2 disposed at the top of the grading box 1. A support base 3 is installed at the bottom of the grading box 1, and a screen base 4 is disposed on the support base 3. Two sets of telescopic rods 5 are connected to the bottom of the grading box 1 on both sides of the bottom of the screen base 4. A return spring 6 is wound around the outside of both sets of telescopic rods 5. Pressure plates 7 are installed on both sides of the top of the screen base 4. A rotating rod 8 is installed at the top of the grading box 1. A first electric current device is installed on the outside of the grading box 1. The output end of the first motor 9 is connected to the end of the rotating rod 8. The two ends of the rotating rod 8 are respectively connected to the cams 10. Both sets of cams 10 are located at the top of the two sets of pressure plates 7. Multiple sets of detachable screen frames 11 are installed in the screen base 4. A collection cylinder 12 is installed in the support base 3. Pull handles 13 are installed on the outer walls of the front ends of the multiple sets of screen frames 11 and the collection cylinder 12. A rotating seat 14 is installed at the top of the grading box 1. A connecting rod 15 is rotatably connected inside the rotating seat 14. A cover plate 16 is fixed on the outer wall of the connecting rod 15. A locking component is installed on the back of the cover plate 16.

[0028] By installing a vibrating screen base 4 inside the grading box 1, and installing multiple sets of detachable screen frames 11 inside the screen base 4, the first motor 9 drives two sets of cams 10 outside the rotating rod 8 to rotate, causing two sets of pressure plates 7 to drive the screen base 4 and telescopic rod 5 to descend under the action of the cams 10, and causing two sets of return springs 6 to push the telescopic rod 5 upward, so that the screen base 4 can drive multiple sets of screen frames 11 to perform screening actions synchronously. Furthermore, by installing a rotatable cover plate 16 at the front end of the grading box 1, when the cover plate 16 is opened, it is easy to quickly disassemble and pull out multiple sets of screen frames 11 and collection cylinder 12, thereby ensuring easy unblocking of the inside of the screen frames 11 and improving the convenience of equipment use.

[0029] In other embodiments, the locking assembly includes a roller assembly 19 installed in the middle of the back end of the cover plate 16, a retainer 20 installed at the lower end of the roller assembly 19, the roller assembly 19 being in contact with the surface of the pull handle 13 on the multiple sets of screen frames 11, and the outer wall of the retainer 20 being in contact with the outer wall of the pull handle 13 on the collection cylinder 12.

[0030] By having the second motor 18 drive the cover plate 16 to move the roller assembly 19 and the clamping seat 20 to press the pull handle 13 on the outside of the multiple sets of screen frames 11 and the collection cylinder 12, the multiple sets of screen frames 11 and the collection cylinder 12 are effectively fixed, so that the multiple sets of screen frames 11 cannot leave the inside of the screen base 4 when the sieve bucket is in operation. When it is necessary to remove the screen frames 11 and the collection cylinder 12, the second motor 18 can drive the cover plate 16 to rotate and open, so that the multiple sets of screen frames 11 and the collection cylinder 12 can be quickly disassembled, thereby facilitating the quick unblocking of the multiple sets of screen frames 11 and the removal of calcium carbonate powder in the collection cylinder 12.

[0031] In other embodiments, observation windows 17 are installed on both sides of the cover plate 16, and high-strength transparent glass is installed in both sets of observation windows 17.

[0032] This design allows for direct observation of the interior of the grading box 1 through the observation window 17, thereby enabling real-time monitoring of the screening status and reducing the frequency of downtime for inspection.

[0033] In other embodiments, the input terminals of both the first motor 9 and the second motor 18 are electrically connected to an external controller via wires;

[0034] This design enables the external controller to effectively and precisely control the speed of the first motor 9 and the second motor 18, ensuring that the first motor 9 and the second motor 18 can operate effectively.

[0035] In other embodiments, the aperture of the sieve holes at the bottom of the multiple sets of sieve frames 11 decreases layer by layer from top to bottom;

[0036] This design allows multiple sets of sieve frames 11 to effectively classify and sieve calcium carbonate from top to bottom, thereby improving the screening quality of calcium carbonate powder.

[0037] In other embodiments, multiple sets of rollers are installed in the roller assembly 19, and the surface of each roller is covered with a rubber sleeve.

[0038] This design effectively increases the friction between the roller assembly 19 and the surfaces of the multiple pull handles 13, preventing the screen frame 11 from failing to lock when vibrating.

[0039] In other embodiments, the outer wall of the sieve frame 11 is fully fitted with the inner wall of the sieve seat 4;

[0040] With this design, when the screen frame 11 is placed in the screen base 4, it can effectively prevent the screen frame 11 from shaking in the screen base 4, thereby ensuring that the screen base 4 can drive the screen frame 11 to move synchronously.

[0041] This utility model provides a calcium carbonate powder grading device, the specific working principle of which is as follows:

[0042] Screening stage:

[0043] Calcium carbonate powder falls into screen base 4 through feed hopper 2. The first motor 9 drives cam 10 to press the pressure plate 7, causing screen base 4 to vibrate. The powder is screened in layers through multi-stage screen frame 11. Coarse powder is retained in screen frame 11, while fine powder falls into collection cylinder 12. The return spring 6 provides rebound force to enhance the vibration amplitude.

[0044] Rapid maintenance phase:

[0045] After the machine stops, the second motor 18 reverses, the drum assembly 19 releases the handle 13, pulls out the screen frame 11 and the collection cylinder 12 to clean the mesh, and after the replacement is completed, the second motor 18 rotates forward to lock and complete the maintenance.

[0046] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A calcium carbonate powder grading device, comprising a grading box (1) and a feed hopper (2) disposed at the top of the grading box (1), characterized in that: The grading box (1) has a support base (3) installed at its bottom. A screen seat (4) is installed on the support base (3). The bottom of the screen seat (4) is connected to the bottom of the grading box (1) by two sets of telescopic rods (5). A return spring (6) is wound around the outside of the two sets of telescopic rods (5). A pressure plate (7) is installed on both sides of the top of the screen seat (4). A rotating rod (8) is installed at the top of the grading box (1). A first motor (9) is installed outside the grading box (1). The output end of the first motor (9) is connected to the end of the rotating rod (8). The two sides of the rotating rod (8) The ends are respectively connected to the cam (10), and the two sets of cams (10) are located at the top of the two sets of pressure plates (7). Multiple sets of detachable screen frames (11) are installed in the screen seat (4). A collection cylinder (12) is installed in the support seat (3). Pull handles (13) are installed on the outer walls of the front ends of the multiple sets of screen frames (11) and collection cylinders (12). A rotating seat (14) is installed at the top of the grading box (1). A connecting rod (15) is rotatably connected in the rotating seat (14). A cover plate (16) is fixed on the outer wall of the connecting rod (15). A locking component is installed on the back of the cover plate (16).

2. The calcium carbonate powder grading device according to claim 1, characterized in that: The locking assembly includes a roller assembly (19) installed in the middle of the back end of the cover plate (16). A retainer (20) is installed at the lower end of the roller assembly (19). The roller assembly (19) is in contact with the surface of the pull handle (13) on multiple sets of screen frames (11). The outer wall of the retainer (20) is in contact with the outer wall of the pull handle (13) on the collection cylinder (12).

3. The calcium carbonate powder grading device according to claim 1, characterized in that: Both sides of the cover plate (16) are equipped with observation windows (17), and both sets of observation windows (17) are equipped with high-strength transparent glass.

4. A calcium carbonate powder grading device according to claim 1 or 2, characterized in that: The input terminals of the first motor (9) and the second motor (18) are electrically connected to an external controller via wires.

5. A calcium carbonate powder grading device according to claim 1, characterized in that: The aperture of the sieve holes at the bottom of the multiple sets of sieve frames (11) decreases from top to bottom.

6. A calcium carbonate powder grading device according to claim 2, characterized in that: The roller assembly (19) contains multiple sets of rollers, and the surface of each roller is covered with a rubber sleeve.

7. A calcium carbonate powder grading device according to claim 1, characterized in that: The outer wall of the sieve frame (11) is fully fitted with the inner wall of the sieve seat (4).

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