Vacuum discharging flow assisting device
By introducing compressed air purge and pneumatic stirring structures into the vacuum discharger, the problem of material blockage with poor fluidity is solved, and the continuous discharge of materials and the automatic operation of equipment is realized.
Patent Information
- Application Number
- CN202422039871.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing vacuum dischargers are prone to block the discharge port when processing materials with poor fluidity, resulting in interruption of the discharge process, requiring manual intervention and unblocking, and lack active flow-splitting structure.
Compressed air purge and pneumatic stirring structures are adopted, and the air blowing holes are arranged in an interlaced manner through the rotating movement of the agitator and the staggered blowing holes, combined with the purge of compressed air, to prevent the material from clogging the discharge port, and ensure the fluidity of the material and continuous discharge.
Effectively prevent materials from clogging the discharge port, ensure continuous operation of discharge, reduce manual intervention, improve discharge efficiency, and prevent materials from sticking to the equipment wall.
Smart Images
Figure CN223086719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of discharging equipment, in particular to a vacuum discharging flow assistance device. Background Technique
[0002] In the pharmaceutical industry, a vacuum discharger is required for the vacuum transfer of powder or granular materials between different storage tanks or equipment. At present, the existing vacuum discharger does not have an active flow assistance structure. During the vacuum discharging process, for materials with poor fluidity, it will cause the materials to block the discharge port, resulting in the interruption of the entire discharging process. Finally, only manual intervention can be carried out, such as manual knocking to dredge. Even for some materials, manual knocking can only make the materials more compact and ineffective. The structure of the existing vacuum discharger only evacuates the vacuum while feeding air through a breather during discharging, without an active flow assistance structure, and it is easy to have problems such as being unable to pump for materials with poor fluidity, resulting in blocking the discharge port. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a vacuum discharging flow assistance device. By adding a compressed air purging and pneumatic stirring structure, the materials are not easy to block the discharge port, thus ensuring the continuous operation of discharging.
[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A vacuum discharging flow assistance device includes a silo, a discharger, and a support seat. The discharger is installed at the discharge port of the silo. A butterfly valve is installed above the discharge port of the silo. One end of the discharger is a discharge interface, and the discharge interface is connected to the equipment that needs to be fed through a hose. The other end of the discharger is the driving structure and support seat of the stirrer. The inside of the discharger is a stirrer. One end of the stirrer is connected to the driving structure and is driven by a pneumatic actuator to realize the rotational movement of the stirrer. The pneumatic actuator is installed at one end of the support seat, and the other end of the support seat is connected to the discharger through a clamp. The support seat is provided with a compressed air inlet interface, and a bushing is installed inside the support seat.
[0005] Preferably, a circlip is arranged at the shaft end of the stirrer to limit the axial movement of the stirrer and can only rotate under the drive of the pneumatic actuator.
[0006] Preferably, the shaft of the stirrer is a hollow structure. There are 4 evenly distributed air inlet holes at one end of the shaft. There are stirring blades on the stirrer, and the stirring blades are arranged staggeredly. The stirrer also has a plurality of evenly distributed air blowing holes, and the air blowing holes are located between two stirring blades and are arranged crosswise.
[0007] Preferably, the bushing is made of polytetrafluoroethylene and plays a supporting role during the rotation of the stirrer. A plurality of air inlet channels a are evenly distributed on the bushing.
[0008] Preferably, the support base further includes cavity a and cavity b. Seals a and b are provided on both sides of cavity a for sealing, and seals c and d are provided on both sides of cavity b for sealing.
[0009] Preferably, a plurality of air inlet channels b are provided at the shaft end of the agitator, and the air inlet channels b communicate with the hollow structure of the agitator.
[0010] Preferably, the chuck a on the support base and the chuck b on the discharger are fixedly connected by a clamp.
[0011] Compared with the prior art, the utility model has the following advantages:
[0012] 1. By adding a compressed air purge and a pneumatic agitation structure, the compressed air purge and pneumatic agitation can prevent the material from being squeezed into a mass during discharging, break up the material, thus ensuring the fluidity and state of the material, making it not easy for the material to block the discharge port, and thus ensuring the continuous operation of discharging.
[0013] 2. By setting up a compressed air purge structure, the utility model can prevent the material from adhering to the side walls of the discharger and the pipeline, and the discharging is cleaner. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic diagram of the external structure of the vacuum discharging flow-aid device of the utility model;
[0015] Figure 2 is a sectional view of the vacuum discharging flow-aid device of the utility model;
[0016] Figure 3 is a schematic diagram of the agitator structure of the vacuum discharging flow-aid device of the utility model;
[0017] Attached Figure 4 is a sectional view of the interior of the support base of the vacuum discharging flow-aid device of the utility model.
[0018] In the figure: 1. Bin, 2. Discharger, 3. Pneumatic actuator, 4. Discharge interface, 5. Agitator, 6. Air inlet interface, 7. Thin plate type blade, 8. Cylindrical blade, 9. Blowing hole, 10. Air inlet hole, 11. Butterfly valve, 12. Clamp, 13. Support base, 14. Sleeve, 20. Air inlet channel, 21. Cavity a, 22. Air inlet channel a, 23. Cavity b, 24. Air inlet channel b, 25. Snap ring, 26. Seal a, 27. Seal b, 28. Seal e, 29. Seal c, 30. Seal d, 31. Chuck a, 32. Chuck b, 33. Seal f. DETAILED DESCRIPTION OF THE INVENTION
[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
[0020] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification.
[0021] The present utility model provides a vacuum discharging flow-aiding device as Figures 1-4 shown, which includes a silo (1), a discharger (2), and a support base (13). The discharger (2) is installed at the discharge port of the silo (1). A butterfly valve (11) is installed above the discharge port of the silo (1). One end of the discharger (2) is a discharge interface (4), and the discharge interface (4) is connected to the equipment that needs to be fed through a hose. The other end of the discharger (2) is the driving structure of the stirrer (5) and the support base (13). The inside of the discharger (2) is the stirrer (5). One end of the stirrer (5) is connected to the driving structure and is driven by a pneumatic actuator (3) to realize the rotational movement of the stirrer (5). The pneumatic actuator (3) is installed at one end of the support base (13). The other end of the support base (13) is connected to the discharger (2) through a clamp (12). The support base (13) is provided with a compressed air inlet interface (6), and a bushing (14) is installed inside the support base (13).
[0022] Specifically, a circlip (25) is arranged at the shaft end of the stirrer (5) to limit the axial movement of the stirrer (5), and it can only perform rotational movement under the drive of the pneumatic actuator (3).
[0023] Specifically, the shaft of the stirrer (5) is of a hollow structure. There are 4 evenly distributed air inlet holes (10) at one end of the shaft. There are stirring blades on the stirrer (5), and the stirring blades are arranged staggeredly. The stirrer (5) also has a plurality of evenly distributed air blowing holes (9), and the air blowing holes (9) are located between two stirring blades and are arranged crosswise.
[0024] Specifically, the bushing (14) is made of polytetrafluoroethylene and plays a supporting role during the rotation of the stirrer (5). A plurality of air inlet channels a (22) are evenly distributed on the bushing (14).
[0025] Specifically, the support base (13) further includes a cavity a (21) and a cavity b (23). Seals a (26) and b (27) are provided on both sides of the cavity a (21) for sealing, and seals c (29) and d (30) are provided on both sides of the cavity b (23) for sealing.
[0026] Specifically, a plurality of air inlet channels b (24) are provided at the shaft end of the stirrer (5), and the air inlet channels b (24) communicate with the hollow structure of the stirrer (5).
[0027] Specifically, the chuck a (31) on the support base (13) and the chuck b (32) on the discharger (2) are fixedly connected by a clamp (12).
[0028] Working principle:
[0029] During operation, the vacuum discharging and flow-aiding device is installed at the discharging port of the silo (1), and powder or granular materials are stored in the silo (1). When it is necessary to transfer the materials from the silo (1) to other equipment, the butterfly valve (11) is opened, and the materials fall into the discharger (2). The discharging interface (4) is connected to the discharging equipment through a hose. The discharging equipment generates a vacuum by means of vacuum pumping, so as to suck the materials from the silo (1) through the discharging interface (4) and the hose into the discharging equipment. During this process, compressed air is connected through the air inlet interface (6) and enters the inside of the support base (13) from the air inlet channel (20) and then enters the cavity a (21). Sealing rings a (26) and b (27) are provided on both sides of the cavity a (21) for sealing, so that the compressed air can only enter the uniformly distributed air inlet channels (22) on the shaft sleeve (14). The compressed air enters the cavity b (23) through the air inlet channels (22). Sealing rings c (29) and d (30) are also provided on both sides of the cavity b (23) for sealing. Finally, the compressed air can only enter the hollow shaft of the stirrer (5) through the air inlet channel (24) and is blown out from the alternately arranged air blowing holes (9) on the hollow shaft of the stirrer (5). At the same time, the stirrer (5) is driven by a pneumatic actuator (3) to perform a reciprocating rotational movement for stirring. Through the combined action of the rotation and stirring of the stirrer (5) and the purging of the compressed air from the air blowing holes (9), on the one hand, it plays a role in supplementing air and aiding flow, and on the other hand, it can also purge the materials, thereby accelerating the discharging process of the materials and preventing the materials from blocking the discharging port and affecting the continuous operation of vacuum discharging.
[0030] In order to prevent the materials from entering the internal part of the driving device and contacting the external environment, sealing rings e (28) and f (33) are respectively provided; the structure of the paddle can be selected in different forms according to the materials, such as a thin plate type paddle (7) or a cylindrical paddle (8).
[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A vacuum discharging flow-aiding device, comprising a silo (1), a discharger (2), and a support base (13), characterized in that: The discharger (2) is installed at the discharge port of the silo (1). A butterfly valve (11) is installed above the discharge port of the silo (1). One end of the discharger (2) is a discharge interface (4), and the discharge interface (4) is connected to the equipment that needs to be fed through a hose. The other end of the discharger (2) is the drive structure and support seat (13) of the agitator (5). The inside of the discharger (2) is the agitator (5). One end of the agitator (5) is connected to the drive structure and is driven by a pneumatic actuator (3) to realize the rotational movement of the agitator (5). The pneumatic actuator (3) is installed at one end of the support seat (13). The other end of the support seat (13) is connected to the discharger (2) through a clamp (12). The support seat (13) is provided with a compressed air inlet interface (6), and a bushing (14) is installed inside the support seat (13).
2. The vacuum discharging flow-assisting device according to claim 1, wherein: A snap ring (25) is arranged at the shaft end of the agitator (5) to limit the axial movement of the agitator (5), and it can only rotate under the drive of the pneumatic actuator (3).
3. The vacuum discharging flow assisting device according to claim 1, wherein: The shaft of the agitator (5) is of a hollow structure. There are 4 evenly distributed air inlet holes (10) at one end of the shaft. The agitator (5) is provided with mixing blades, and the mixing blades are arranged staggeredly. The agitator (5) also has a plurality of evenly distributed air blowing holes (9), and the air blowing holes (9) are located between two mixing blades and are arranged crosswise.
4. A vacuum discharging flow assistance device according to claim 1, characterized in that: The bushing (14) is made of polytetrafluoroethylene and plays a supporting role during the rotation of the agitator (5). A plurality of air inlet channels a (22) are evenly distributed on the bushing (14).
5. A vacuum discharging flow assistance device according to claim 1, characterized in that: The support seat (13) further includes a cavity a (21) and a cavity b (23). Seals a (26) and b (27) are provided on both sides of the cavity a (21) for sealing. Seals c (29) and d (30) are provided on both sides of the cavity b (23) for sealing.
6. The vacuum discharging flow assistance device according to claim 1, characterized in that: A plurality of air inlet channels b (24) are arranged at the shaft end of the agitator (5), and the air inlet channels b (24) communicate with the hollow structure of the agitator (5).
7. The vacuum discharging flow assistance device according to claim 1, wherein: The chuck a (31) on the support seat (13) and the chuck b (32) on the discharger (2) are fixedly connected through a clamp (12).