A powder handling apparatus in the production of granules

Abstract

The utility model discloses a kind of powder processing devices in granular material production, including screening box, vibration motor is connected with the bottom end of screening box, support frame is equipped in screening box, screen mesh is equipped in support frame top, fixed frame is connected with the outside of screen mesh, fixed block is connected with the below of screen mesh, fixed groove is equipped in support frame top, fixed block and fixed groove are connected by magnet, the utility model is connected by fixed frame and the support frame in screening box to screen mesh by using magnet and fixed block combination's connecting positioning structure, when replacing screen mesh, only need to put the fixed frame with screen mesh into support frame, preliminary positioning and compacting can be completed using the magnetic force adsorption between fixed block and fixed groove, ensure that installation accuracy can be preliminary fixed to screen mesh, the position of screen mesh after preliminary fixing is stable, provide accurate reference for subsequent bolt locking, further improve overall installation quality and operating reliability.

Description

Technical Field

[0001] This utility model relates to the field of granular material production technology, and more specifically, to a powder processing device in granular material production. Background Technology

[0002] In the production of granulated feedstock, powder content is a crucial quality indicator. Typically, the powder content of the granulated feedstock should be controlled within a certain range to ensure product quality and performance. To ensure that the powder content of the final product consistently meets factory standards, a highly efficient and reliable powder processing device must be added before the final critical step in granulated feedstock production—bag filling. The main function of this device is to perform fine screening of the granulated feedstock that has completed granulation but has not yet entered the automatic packaging system, thoroughly separating and recovering any residual fine powder, thereby further reducing the powder content to the target range.

[0003] Currently, common powder processing methods mainly rely on physical separation using screening equipment such as linear vibrating screens. However, in actual use, traditional screening devices have obvious structural defects, especially in the replacement and fixing of screens. Due to the lack of a precise positioning and guiding structure, the screen is prone to shifting during installation, affecting screening accuracy. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a powder processing device for the production of granular materials, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A powder processing device for granular material production includes a screening box, a vibrating motor connected to the bottom of the screening box, a support frame inside the screening box, a screen above the support frame, a fixed frame connected to the outside of the screen, a fixed block connected below the screen, a fixed groove above the support frame, and the fixed block and the fixed groove connected by a magnet.

[0007] Furthermore, a handle is attached to one side of the fixed frame.

[0008] Furthermore, the support frame and the fixed frame are connected by bolts.

[0009] Furthermore, a guide plate is provided at the bottom of the screening box, a first discharge port is connected to one side of the screening box, and a second discharge port is provided on one side of the first discharge port.

[0010] Furthermore, a screw conveyor is installed below the second discharge port, and the screw conveyor is driven by a drive motor.

[0011] Furthermore, a granulation bin is located below the output port of the screw conveyor.

[0012] Furthermore, a support spring is connected to the bottom of the screening box, and the bottom of the support spring is connected to the bracket.

[0013] Furthermore, the top of the screening box is equipped with a sealing cover, which is connected to the screening box by a locking mechanism, and an inlet is connected above the seal.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) This device adopts a positioning structure combining magnets and fixing blocks. The screen is connected to the support frame in the screening box through the fixing frame. When replacing the screen, simply place the fixing frame with the screen on the support frame. The magnetic attraction between the fixing block and the fixing groove can complete the initial positioning and pressing, ensuring accurate installation while initially fixing the screen. The screen position is stable after initial fixing, providing a precise reference for subsequent bolt tightening, further improving the overall installation quality and operational reliability.

[0016] (2) By installing a screw conveyor on one side of the screening box, the fine powder falls into the screw conveyor below through the second discharge port and is continuously transported to the granulation bin by the drive motor, where it re-participates in the granulation process. This closed-loop recycling system effectively reduces raw material waste and improves resource utilization. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.

[0018] Figure 1 This is a front view of a powder processing device in granule production according to an embodiment of the present utility model;

[0019] Figure 2 This is a side view of a powder processing device in the production of granular materials according to an embodiment of the present utility model;

[0020] Figure 3 This is a structural diagram of the internal structure of a screening box in a powder processing device for granular material production according to an embodiment of the present utility model;

[0021] Figure 4 This is a diagram of the screen structure of a powder processing device in the production of granular materials according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Screening box; 2. Vibrating motor; 3. Support frame; 4. Screen; 5. Fixing frame; 6. Fixing block; 7. Fixing groove; 8. Handle; 9. Guide plate; 10. First discharge port; 11. Second discharge port; 12. Screw conveyor; 13. Drive motor; 14. Granulation bin; 15. Support spring; 16. Bracket; 17. Sealing cover; 18. Locking mechanism; 19. Feed inlet. 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] According to an embodiment of the present invention, a powder processing device for granular material production is provided.

[0026] Example 1

[0027] like Figures 1-4 As shown, the powder processing device in the production of granular materials according to an embodiment of this utility model includes a screening box 1. A vibration motor 2 is connected to the bottom of the screening box 1. The vibration motor 2 serves as an excitation source, generating directional linear vibration through the synchronous rotation of eccentric blocks at both ends of the motor, so that the material is smoothly conveyed forward on the screen surface and effectively graded. A support spring 15 is connected below the screening box 1, which effectively buffers the vibration energy generated during equipment operation, reduces interference to the ground foundation and other surrounding equipment, and ensures that the screen body maintains a stable trajectory during vibration, improving screening accuracy and the stability of equipment operation. The support spring 15 is connected to a bracket 16 below.

[0028] The screening box 1 has a support frame 3 inside, with a screen 4 above the support frame 3 for separating granular material from fine powder. A fixing frame 5 is connected to the outside of the screen 4, and a fixing block 6 is connected below the screen 4. A fixing groove 7 is located above the support frame 3, and the fixing block 6 and fixing groove 7 are connected by magnets. A handle 8 is connected to one side of the fixing frame 5 for easy gripping and lifting when changing the screen. The support frame 3 and the fixing frame 5 are connected by bolts. A guide plate 9 is located at the bottom of the screening box 1, and a first discharge port 10 is connected to one side of the screening box 1 for discharging qualified granular material after screening. A second discharge port 11 is located on one side of the first discharge port 10, connected to the screening box 1, for discharging fine powder that has passed through the screen 4, thus achieving automatic separation of granules and powder.

[0029] like Figure 2As shown, a screw conveyor 12 is provided below the second discharge port 11. The screw conveyor 12 consists of a shell and screw blades. One end of the output shaft of the screw blades passes through the shell and is connected to the drive motor 13. The drive motor 13 is fixed to the outside of the shell. The output port of the screw conveyor 12 is located above the granulation bin 14, so that the recovered fine powder can be directly returned to the granulation system to participate in the granulation process again, realizing the closed-loop recycling of resources and effectively reducing raw material loss.

[0030] like Figure 3 As shown, a sealing cover 17 is provided at the top of the screening box 1. The sealing cover 17 is connected to the screening box 1 via a locking mechanism 18. The locking mechanism 18 includes a locking hook, a locking handle, a fixing base, and a pressure rod. One end of the pressure rod is hinged to the handle, and the other end is connected to the locking hook. When one end of the pressure rod is hung on the locking hook, the pressure rod presses against the locking hook when the handle is turned, and at the same time applies a continuous pressing force to the sealing cover to ensure the sealing effect of the sealing cover. An inlet 19 is connected above the sealing cover 17 for connecting to the discharge end of the upstream elevator, so that the granules to be processed can enter the screening area evenly, complete the final powder removal process, and then enter the automatic packaging stage.

[0031] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0032] In summary, with the help of the above-mentioned technical solution of this utility model, after the particles in the cooling tower are cooled down, the particles enter the screening box 1 through the feed inlet 19 via the elevator. The feed inlet 19 is located at the top of the sealing cover 17. Since the screening box 1 is in a fully enclosed state, the sealing cover 17 is tightly pressed against the box body by multiple locking mechanisms 18 arranged around it, ensuring that no dust overflows during the entire screening process.

[0033] After the granular material enters the screening box 1, the vibrating motor 2 installed at the bottom of the screening box 1 starts to work. The eccentric blocks at both ends of the motor rotate synchronously in opposite directions, generating directional linear vibration, causing the screening box 1 to reciprocate in a horizontal or slightly inclined direction. Under the action of vibration, the granular material is "thrown up" on the surface of the screen 4 and propelled forward, forming a continuous jumping motion. Particles with a diameter larger than the screen mesh diameter (e.g., ≥1.2mm) cannot pass through the screen holes and move smoothly forward along the surface of the screen 4 under the action of vibration thrust, and are finally discharged from the first discharge port 10 on the side wall of the screening box 1, entering the downstream automatic packaging scale or conveyor belt, ready for bagging and packaging.

[0034] Fine powder particles smaller than the screen mesh size (e.g., <1.2mm) rapidly pass through the screen 4 during vibration and fall into the guide plate 9 area below the screen 4. The guide plate 9 is inclined, guiding the fine powder to slide naturally to the second discharge port 11, achieving automatic separation of particles and powder and avoiding mixing. The fine powder discharged from the second discharge port 11 directly enters the screw conveyor 12 below. This conveyor consists of a shell, screw blades, and a drive motor 13. The drive motor 13 drives the screw blades to rotate, continuously pushing the fine powder from the feed end to the output port. The conveying process is completely sealed, with no dust leakage.

[0035] When it is necessary to replace the screen or clean the equipment, the operator can quickly loosen the multiple locking handles on the sealing cover 17, open the sealing cover 17, remove the bolts, and then lift the entire fixing frame 5 with the screen 4 using the handle 8 on the fixing frame 5. Then, the cleaned screen 4 is quickly positioned by using the magnetic attraction between it and the fixing groove 7 to ensure accurate installation. Finally, the bolts are tightened again to complete the screen replacement.

[0036] 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, 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 powder processing device for granular material production, characterized in that, Includes a screening box (1), a vibration motor (2) connected to the bottom of the screening box (1), a support frame (3) inside the screening box (1), a screen (4) above the support frame (3), a fixed frame (5) connected to the outside of the screen (4), a fixed block (6) connected to the bottom of the screen (4), a fixed groove (7) above the support frame (3), and the fixed block (6) and the fixed groove (7) are connected by a magnet.

2. The powder processing device for granular material production according to claim 1, characterized in that, A handle (8) is connected to one side of the fixed frame (5).

3. The powder processing device for granular material production according to claim 1, characterized in that, The support frame (3) and the fixed frame (5) are connected by bolts.

4. The powder processing device for granular material production according to claim 1, characterized in that, The bottom of the screening box (1) is provided with a guide plate (9), and a first discharge port (10) is connected to one side of the screening box (1). A second discharge port (11) is provided on one side of the first discharge port (10).

5. A powder processing device for granular material production according to claim 1, characterized in that, A screw conveyor (12) is provided below the second discharge port (11), and the screw conveyor (12) is driven by a drive motor (13).

6. A powder processing device for granular material production according to claim 1, characterized in that, A pelletizing bin (14) is provided below the output port of the screw conveyor (12).

7. A powder processing device for granular material production according to claim 1, characterized in that, A support spring (15) is connected to the bottom of the screening box (1), and the support spring (15) is connected to the support bracket (16) below.

8. A powder processing device for granular material production according to claim 1, characterized in that, The top of the screening box (1) is provided with a sealing cover (17), and the sealing cover (17) is connected to the screening box (1) through a locking mechanism (18). The inlet (19) is connected above the sealing cover (17).

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