Powder classifying screen for processing sepiolite hemostatic material

Abstract

This utility model relates to the field of sepiolite hemostatic material screening technology, specifically disclosing a powder grading and screening machine for processing sepiolite hemostatic materials. It includes a base, a mounting seat on top of the base, a supporting spring between the mounting seat and the base, a vibration motor at the bottom of the mounting seat, a discharge seat on the mounting seat, a top cover above the discharge seat, and multiple screening frames arranged longitudinally between the top cover and the discharge seat. The screening aperture of the screening frames gradually decreases from top to bottom. A transducer is installed on the side wall of each screening frame. An ultrasonic generator is installed on the outside of the base, and the ultrasonic generator and the transducer are electrically connected via wires. A feed pipe is installed on the top cover, and a feed control component is installed inside the feed pipe. The beneficial effect of this utility model is that it can realize the grading and screening of sepiolite powder, improving the screening effect and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sepiolite hemostatic material screening technology, specifically a powder grading and screening machine for processing sepiolite hemostatic materials. Background Technology

[0002] Sepiolite hemostatic material is a novel inorganic hemostatic agent, with natural nanofiber sepiolite clay as its main component. It achieves rapid hemostasis through physical adsorption and activation of coagulation factors. Its porous structure can efficiently absorb blood moisture and concentrate coagulation components, while releasing magnesium and calcium ions to promote platelet aggregation.

[0003] Compared with traditional hemostatic materials, it has advantages such as good biocompatibility, no pyrogen reaction, and less adhesion to wounds. It is especially suitable for emergency bleeding treatment in battlefields, accidents, etc., and has been widely used in military first aid kits and surgical fields.

[0004] In the processing of sepiolite hemostatic materials, sepiolite needs to undergo crushing, grading and other processes to obtain powder with a specific particle size distribution. The sieving accuracy directly affects the porosity and hemostatic effect of the hemostatic material.

[0005] Traditional vibrating screening equipment suffers from the following technical bottlenecks: 1) The mechanical vibration generated by the vibrating motor can easily lead to the agglomeration of fine powder, resulting in significant screen clogging problems; 2) Uneven vibration transmission between multiple screening stages affects grading accuracy; 3) Inaccurate feed flow control leads to uneven load on the screen surface. Utility Model Content

[0006] The purpose of this invention is to provide a powder grading and screening machine for processing sepiolite hemostatic materials, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a powder grading and screening machine for processing sepiolite hemostatic materials, comprising a base, an mounting seat above the base, a supporting spring between the mounting seat and the base, a vibration motor at the bottom of the mounting seat, a discharge seat on the mounting seat, a top cover above the discharge seat, multiple screening frames arranged longitudinally between the top cover and the discharge seat, the screening aperture of the screening frames gradually decreasing from top to bottom, a transducer on the side wall of the screening frame, an ultrasonic generator on the outside of the base, the ultrasonic generator and the transducer being electrically connected by a wire, a feed pipe on the top cover, and a feed control component inside the feed pipe.

[0008] The present invention is further configured such that the feeding control component includes a feeding shaft, which is mounted inside the feeding pipe via bearings. One end of the feeding shaft extends outward and is connected to a feeding control motor. Feeding control blades are provided on the feeding shaft in conjunction with the feeding pipe. During feeding, the sepiolite powder to be screened is input through the feeding pipe. During this process, the feeding control motor is started, and the feeding control motor controls the feeding shaft to drive the feeding control blades to rotate, thereby uniformly and stably controlling the feeding amount of sepiolite powder, improving the uniformity and stability of the sepiolite powder during screening, and improving the screening effect.

[0009] The present invention is further configured such that the top end of the mounting base, the top end of the discharge base, and the top end of the screening frame are all provided with mounting edges, and the bottom end of the top cover, the bottom end of the screening frame, and the bottom end of the discharge base are all provided with engaging edges. The engaging edges and the mounting edges mutually limit and engage with each other, and a locking structure is provided between the mutually cooperating mounting edges and engaging edges.

[0010] This utility model is further configured such that the locking structure is a bolt locking device or a pneumatic locking device. Bolt locking devices and pneumatic locking devices are common structures for locking and fixing two components in vibrating screen equipment. The bolt cooperates with the anti-loosening washer, and mutually cooperating fixing lugs are provided on the outer sides of the mounting edge and the engaging edge to achieve locking and fixing of the upper and lower mutually cooperating mounting edges and engaging edges. The pneumatic locking device uses a cylinder to drive the locking pin into the positioning holes of the upper and lower screen frames, using air pressure to maintain the locking force and achieve rigid fixing. When unlocking, the cylinder retracts and pulls out the locking pin, allowing the screen frame to be separated. The structure is simple, the operation is fast, and it is suitable for vibrating screen operations requiring frequent disassembly and assembly.

[0011] The present invention is further configured such that the screening frame includes a first mounting frame, a screen is provided inside the first mounting frame, and a first discharge pipe is provided on the side of the first mounting frame in conjunction with the screen, so that the sepiolite particles intercepted by the screen will be discharged outward through the first discharge pipe.

[0012] The present invention is further configured such that the discharge seat includes a second mounting frame, a guide plate is inclinedly arranged inside the second mounting frame, and a second discharge pipe is arranged on the side of the second mounting frame in conjunction with the lower end of the guide plate. The sepiolite powder after being screened by the bottom screen will enter the discharge seat and fall onto the guide plate. Under the guidance of the guide plate, it will be conveyed to the second discharge pipe and discharged outward.

[0013] The present invention is further configured such that a plurality of flexible connecting strips are provided on the inner wall of the first mounting frame, and a striking ball is provided at the end of the flexible connecting strip. When the screening frame vibrates, the striking ball will vibrate through the flexible connecting strip, thereby striking the surface of the screen. In this way, the screening effect of the screen on sepiolite powder can be enhanced and the clogging of powder at the screen can be reduced.

[0014] The present invention is further provided that a feeding hopper is provided at the top of the feeding pipe, which can improve the feeding convenience of the feeding pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. High-efficiency graded screening and vibration optimization This invention significantly improves the screening efficiency and precision of sepiolite powder through the dual action of a vibrating motor and ultrasonic vibration. Mechanical vibration (low-frequency, high-amplitude) ensures rapid material stratification, while high-frequency ultrasonic vibration (achieved through a transducer) effectively solves the problem of screen clogging; the mismatch in frequencies avoids interference. Multi-stage screening frames are arranged according to a gradient in aperture size for automatic grading. Combined with a dynamic screen-cleaning design using flexible connecting strips and striking balls, screening efficiency is improved, enabling the grading and screening of high-fineness sepiolite hemostatic materials.

[0016] 2. This utility model adopts a modular design with mounting edges and locking edges, using bolts / pneumatic locking, allowing for quick assembly and disassembly of the top cover, screening frame, and discharge seat. This facilitates the replacement of screens with different mesh sizes or the cleaning of residual powder. The feeding control component uses a feeding control motor to drive the feeding control blades to precisely adjust the feeding amount. Combined with the detachable feeding hopper, this allows the equipment to flexibly switch between small-batch experiments and large-scale production, reducing maintenance time.

[0017] 3. This utility model integrates a coordinated vibration system of an ultrasonic generator and a transducer, which effectively suppresses powder agglomeration through quick-release wire connections. The flexible connecting strips inside the screen vibrate, causing striking balls to strike the screen surface at high frequency. Combined with the inclined guide plate and multiple discharge pipe layout, this ensures the directional discharge of powders of different particle sizes, reducing the clogging rate. The feed motor speed and vibration frequency are interlocked for control, achieving dynamic balance between feeding and screening, making it convenient to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a powder grading and screening machine for processing sepiolite hemostatic materials according to this utility model. Figure 1 ; Figure 2 This is a cross-sectional view of the overall internal structure of this utility model; Figure 3 This is an exploded cross-sectional view of the overall internal structure of this utility model; Figure 4 This is a schematic diagram of the cooperation structure between the upper and lower sets of screen frames in this utility model; Figure 5 This is a schematic diagram of the overall structure of a powder grading and screening machine for processing sepiolite hemostatic materials according to this utility model. Figure 2 .

[0019] The components represented by each number in the attached diagram are listed below: 1. Base; 2. Mounting seat; 3. Support spring; 4. Vibration motor; 5. Discharge seat; 6. Top cover; 7. Screening frame; 8. Transducer; 9. Ultrasonic generator; 10. Feed pipe; 11. Feed shaft; 12. Feed control motor; 13. Feed control blade; 14. Mounting edge; 15. Engaging edge; 16. First mounting frame; 17. Screen; 18. First discharge pipe; 19. Second mounting frame; 20. Guide plate; 21. Second discharge pipe; 22. Flexible connecting strip; 23. Striking ball; 24. Feed hopper. Detailed Implementation

[0020] 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.

[0021] This utility model provides a technical solution: Please refer to Figures 1-5 A powder grading and screening machine for processing sepiolite hemostatic material includes a base 1, an mounting seat 2 on top of the base 1, a support spring 3 between the mounting seat 2 and the base 1, a vibration motor 4 at the bottom of the mounting seat 2, a discharge seat 5 on the mounting seat 2, a top cover 6 above the discharge seat 5, multiple screening frames 7 arranged longitudinally between the top cover 6 and the discharge seat 5, the screening aperture of the screening frames 7 gradually decreasing from top to bottom, a transducer 8 on the side wall of the screening frames 7, an ultrasonic generator 9 on the outside of the base 1, and an ultrasonic generator 9 electrically connected to the transducer 8 via wires, wherein the joints of the wires are quick-release connectors, a feed pipe 10 on the top cover 6, and a feed control component inside the feed pipe 10.

[0022] Please see Figures 1-5 As one implementation of the feeding control component: the feeding control component includes a feeding shaft 11, which is installed in the feeding pipe 10 through bearings. One end of the feeding shaft 11 extends outward and is connected to a feeding control motor 12. Feeding control blades 13 are provided on the feeding shaft 11 in conjunction with the feeding pipe 10. During feeding, the sepiolite powder to be screened is input through the feeding pipe 10. During this process, the feeding control motor 12 is started, and the feeding control motor 12 controls the feeding shaft 11 to drive the feeding control blades 13 to rotate, thereby uniformly and stably controlling the feeding amount of sepiolite powder, improving the uniformity and stability of sepiolite powder during screening, and improving the screening effect.

[0023] This utility model has an installation edge 14 at the top of the mounting base 2, the top of the discharge base 5, and the top of the screening frame 7. The bottom of the top cover 6, the bottom of the screening frame 7, and the bottom of the discharge base 5 are all provided with a locking edge 15. The locking edge 15 and the installation edge 14 are mutually limited and locked together. A locking structure is provided between the mutually cooperating installation edge 14 and locking edge 15.

[0024] The locking structure is a bolt locking device or a pneumatic locking device. Bolt locking devices and pneumatic locking devices are commonly used structures for locking and fixing two components in vibrating screening equipment. The bolts cooperate with the anti-loosening washers. At the same time, there are mutually cooperating fixing ear structures on the outside of the mounting edge 14 and the engaging edge 15 to achieve the locking and fixing of the upper and lower mutually cooperating mounting edge 14 and engaging edge 15. The pneumatic locking device uses a cylinder to drive a locking pin into the positioning holes of the upper and lower screen frames, using air pressure to maintain the locking force and achieve rigid fixation; when unlocking, the cylinder retracts to pull out the locking pin, and the screen frame 7 can be separated. It has a simple structure and fast operation, making it suitable for vibrating screens that require frequent disassembly and assembly.

[0025] Please see Figures 1-5 As one implementation of the screening frame 7: the screening frame 7 includes a first mounting frame 16, a screen 17 is provided inside the first mounting frame 16, and a first discharge pipe 18 is provided on the side of the first mounting frame 16 in conjunction with the screen 17. The sepiolite particles intercepted by the screen 17 will be discharged outward through the first discharge pipe 18.

[0026] Please see Figures 1-5 As one embodiment of the discharge seat 5: The discharge seat 5 includes a second mounting frame 19, and a guide plate 20 is inclinedly arranged inside the second mounting frame 19. A second discharge pipe 21 is arranged on the side of the second mounting frame 19 in conjunction with the lower end of the guide plate 20. The sepiolite powder after being screened by the bottom screen 17 will enter the discharge seat 5 and fall onto the guide plate 20. Under the guidance of the guide plate 20, it will be conveyed to the second discharge pipe 21 and discharged outward.

[0027] This utility model has multiple flexible connecting strips 22 on the inner wall of the first mounting frame 16. The tail end of the flexible connecting strip 22 is provided with a striking ball 23. When the screening frame 7 vibrates, the flexible connecting strip 22 will drive the striking ball 23 to vibrate, thereby striking the surface of the screen 17. In this way, the screening effect of the screen 17 on sepiolite powder can be enhanced and the clogging of powder at the screen 17 can be reduced.

[0028] Please see Figures 1-5 As one implementation of the feed pipe 10: a feed hopper 24 is provided at the top of the feed pipe 10, which can improve the feeding convenience of the feed pipe 10.

[0029] In summary, the working principle and specific workflow of this utility model are as follows: In use, the sepiolite powder to be screened is fed into the feed pipe 10 through the feed hopper 24 and then into the screening box 7 below the top cover 6 through the feed pipe 10. During this process, the feed control motor 12 is started, and the feed shaft 11 is controlled by the feed control motor 12 to drive the feed control blade 13 to rotate, thereby uniformly and stably controlling the feed amount of sepiolite powder, so that the sepiolite powder can fall evenly onto the screen 17 in the uppermost screening frame 7. When the vibration motor 4 is started, the vibration motor 4 and the support spring 3 work together to achieve large-amplitude vibration of the whole, which is mainly used to control the direction of vibration. At the same time, the ultrasonic generator 9 is activated. The ultrasonic generator 9 works with the transducer 8 to generate high-frequency, small-amplitude vibrations at the screening box 7, which is mainly used to control the vibration frequency. In this way, the two vibrations can work together to enhance the vibratory screening effect of sepiolite; The sepiolite powder at the top gradually descends after being screened, and then undergoes further screening through the screen 17 below, thereby achieving graded screening. The sepiolite powder intercepted by the screen 17 is discharged through the corresponding first discharge pipe 18; After being screened by the bottom screen 17, the sepiolite powder will enter the discharge seat 5 and fall onto the guide plate 20. Under the guidance of the guide plate 20, it will be conveyed to the second discharge pipe 21 and discharged outward. During the above process, it is necessary to ensure that the frequency / amplitude of the mechanical vibration generated by the vibration motor 4 matches that of the ultrasonic vibration to avoid mutual interference. The mechanical vibration frequency should be lower than the ultrasonic frequency (usually >20kHz).

[0030] When the screening frame 7 vibrates, the flexible connecting strip 22 drives the striking ball 23 to vibrate, thereby striking the surface of the screen 17. This can enhance the screening effect of the screen 17 on sepiolite powder and reduce the clogging of powder at the screen 17. In this utility model, the top cover 6, the screening frame 7, the discharge seat 5, and the mounting seat 2 are connected by the cooperation of the mounting edge 14, the engaging edge 15, and the locking structure. The locking structure is achieved by using a bolt locking device or a pneumatic locking device that is easy to disassemble in the prior art. This facilitates the installation, disassembly, and replacement of the screening frame 7, the top cover 6, the discharge seat 5, etc.

[0031] In this utility model, the operation of related motors and other electrical components can be controlled by a PLC control system according to a set program. The specific working process and working principle of this utility model have been described in detail. Based on the above working process and working principle, those skilled in the art should know the specific circuit connection relationship and implement it through existing technology. Furthermore, the circuit connection relationship between related electrical components and the specific driver program are not the subject of protection of this utility model, and this utility model will not elaborate on them. It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder classifying screen for processing sepiolite hemostatic material, comprising a base (1), characterized in that: A mounting seat (2) is provided above the base (1). A support spring (3) is provided between the mounting seat (2) and the base (1). A vibration motor (4) is provided at the bottom of the mounting seat (2). A discharge seat (5) is provided on the mounting seat (2). A top cover (6) is provided above the discharge seat (5). Multiple screening frames (7) are arranged longitudinally between the top cover (6) and the discharge seat (5). The screening aperture of the screening frames (7) gradually decreases from top to bottom. A transducer (8) is provided on the side wall of the screening frame (7). An ultrasonic generator (9) is provided on the outside of the base (1). The ultrasonic generator (9) and the transducer (8) are electrically connected by wires. A feed pipe (10) is provided on the top cover (6). A feed control component is provided inside the feed pipe (10).

2. A powder classifying screen for processing sepiolite hemostatic material according to claim 1, characterized in that: The feeding control assembly includes a feeding shaft (11), which is mounted in the feeding pipe (10) via a bearing. One end of the feeding shaft (11) extends outward and is connected to a feeding control motor (12). The feeding shaft (11) is equipped with a feeding control blade (13) that works in conjunction with the feeding pipe (10).

3. The powder grading and screening machine for processing sepiolite hemostatic materials according to claim 1, characterized in that: The top of the mounting base (2), the top of the discharge base (5), and the top of the screening frame (7) are all provided with mounting edges (14). The bottom of the top cover (6), the bottom of the screening frame (7), and the bottom of the discharge base (5) are all provided with locking edges (15). The locking edges (15) and the mounting edges (14) are mutually limited and locked together. A locking structure is provided between the mounting edges (14) and the locking edges (15) that cooperate with each other.

4. A powder classifying screen for processing sepiolite hemostatic material according to claim 3, characterized in that: The locking structure is a bolt locking device or a pneumatic locking device.

5. A powder classifying screen for processing sepiolite hemostatic material according to claim 1, characterized in that: The screening frame (7) includes a first mounting frame (16), a screen (17) is provided inside the first mounting frame (16), and a first discharge pipe (18) is provided on the side of the first mounting frame (16) in conjunction with the screen (17).

6. A powder classifying screen for processing sepiolite hemostatic material according to claim 1, characterized in that: The discharge seat (5) includes a second mounting frame (19), a guide plate (20) is inclinedly arranged inside the second mounting frame (19), and a second discharge pipe (21) is arranged on the side of the second mounting frame (19) at the lower end of the guide plate (20).

7. A powder classifying screen for processing sepiolite hemostatic material according to claim 5, characterized in that: The inner wall of the first mounting frame (16) is provided with a plurality of flexible connecting strips (22), and the tail end of the flexible connecting strips (22) is provided with a striking ball (23).

8. A powder classifying screen for processing sepiolite hemostatic material according to claim 1, characterized in that: The top end of the feed pipe (10) is provided with a feed hopper (24).

Images