Powder vacuum feeding system capable of preventing blockage

Abstract

The utility model discloses an anti-clogging powder vacuum feeding system, which relates to the technical field of powder feeding equipment, and comprises a raw material hopper used for storing powder raw materials; the batching tank is used for temporarily storing powder raw materials; the feeding control valve is connected between the raw material hopper and the batching tank in series, and the feeding control valve can control connection and disconnection between the batching tank and the raw material hopper; the dredging mechanism comprises a dredging base, a material channel is arranged in the dredging base, and the material channel is communicated with the feeding control valve and the raw material hopper; wherein a dredging vertical rod is arranged in the material channel in a matched mode, a plurality of dredging protruding parts are arranged on the circumferential side wall of the dredging vertical rod, and the dredging vertical rod can rotate along the axis of the dredging vertical rod. According to the utility model, the powder conveying pipeline can be dredged, so that the blockage of the powder in the conveying process is avoided, and the wall-hanging residue of the powder is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of powder feeding equipment, in particular to a powder vacuum feeding system capable of preventing blockage. Background Art

[0002] Progesterone is progesterone vaginal sustained-release gel 41PI, which has the characteristics of small particle size, light texture, low bulk density, and strong adhesion. Progesterone is OE42 grade 3 and belongs to the hormone category.

[0003] At present, the gel line is not a dedicated line, and the personnel do not have special protection. In order to prevent cross contamination and protect personnel, according to the "Guidelines for Quality Management of Co-production of Pharmaceuticals", progesterone gel should be produced in a closed manner (wetting and feeding are not considered because the amount of solvent in the product prescription is small). The progesterone is weighed in a negative pressure isolator. After weighing, it is transferred to a mobile storage tank through an αβ valve, and then transferred to the workshop. After negative pressure vacuum loading, the progesterone is stirred and wetted in the emulsification tank, so that the risk of exposure before and after loading is relatively small. However, the particle size of progesterone raw materials is small (D90 < 20μm), the texture is light, the intermolecular force is large, and it is easy to generate static electricity, resulting in accumulation and wall hanging, and it is very easy to cause the conveying pipeline to be blocked during the loading process. At the same time, after the conveying pipeline is blocked, there is a situation where the negative pressure is set to -0.09Mp41, but it still cannot be sucked through; and because the negative pressure in the batching tank is too large to impact the internal materials, the progesterone raw material rushes to the top. Utility Model Content

[0004] In view of the technical problem that the progesterone raw material is very likely to clog the conveying pipeline during the feeding process, the utility model provides a powder vacuum feeding system that can prevent clogging, which can dredge the powder conveying pipeline to avoid clogging of the powder during the conveying process, and can also reduce the waste of wall residue during the powder conveying process.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model provides a powder vacuum feeding system capable of preventing clogging, comprising: a raw material hopper, the raw material hopper is used to store powder raw materials; a batching tank, the batching tank is used to temporarily store powder raw materials; a feed control valve, the feed control valve is connected in series between the raw material hopper and the batching tank, and the feed control valve can control the on-off connection between the batching tank and the raw material hopper; a dredging mechanism, the dredging mechanism comprises a dredging base, a material channel is arranged in the dredging base, and the material channel is connected with the feed control valve and the raw material hopper; wherein a dredging vertical rod is adapted to be arranged in the material channel, a plurality of dredging convex parts are arranged on the circumferential side wall of the dredging vertical rod, and the dredging vertical rod can rotate along its own axis.

[0007] The utility model provides a blockage-resistant powder vacuum feeding system, which includes a raw material hopper, a batching tank and a feeding control valve. The feeding control valve is connected in series between the raw material hopper and the batching tank, and also includes a dredging mechanism. The dredging mechanism includes a dredging base. A material channel connecting the feeding control valve and the raw material hopper is arranged in the dredging base. In addition, a dredging vertical rod that can rotate along its own axis is adapted in the material channel, and a plurality of dredging convex portions are arranged on the circumferential side wall of the dredging vertical rod.

[0008] When in use, the vacuum system is used to draw vacuum from the batching tank so that the vacuum degree in the batching tank reaches the set range, and the feed control valve is opened to release the vacuum after the vacuum degree reaches the upper limit. At this time, the powder in the raw material hopper enters the batching tank under the attraction of negative pressure to wait for subsequent production. When the powder is blocked, the unblocking vertical rod is driven to rotate to drive the unblocking convex part to stir the powder, thereby breaking up the powder embolism and playing the role of unblocking. At the same time, the unblocking convex part stirs the powder to reduce the amount of powder hanging on the wall.

[0009] In summary, the anti-clogging powder vacuum feeding system provided by the utility model can dredge the powder conveying pipeline to avoid blockage of the powder during the conveying process, and can also reduce the waste of wall residue generated during the powder conveying process.

[0010] In an optional embodiment, the material channel includes a vertical connecting section and a horizontal connecting section that are interconnected, the vertical connecting section is connected to the raw material hopper, and the horizontal connecting section is connected to the feed control valve, so as to facilitate the parallel arrangement of the raw material hopper and the batching tank, thereby shortening the length of the connecting pipe between the raw material hopper and the batching tank, and further reducing the residual powder hanging on the wall.

[0011] In an optional embodiment, a soft connecting pipe is connected between the vertical connecting section and the raw material hopper, and the dredging protrusion is located in the soft connecting pipe to absorb the impact during dredging and prevent the connecting pipe from loosening.

[0012] In an optional embodiment, the flexible connecting tube is made of a transparent material to realize visualization of material transportation and facilitate observation of whether the powder is blocked and the effect of unblocking.

[0013] In an optional embodiment, the lower end of the dredge vertical rod extends outside the lower end of the vertical connecting section, and the dredge vertical rod and the dredge base are sealed by a first seal to seal the gap between the dredge vertical rod and the dredge base to prevent powder and vacuum leakage.

[0014] In an optional embodiment, it also includes a second seal, which is sleeved on the lower end of the dredge base. The second seal can seal the gap between the first seal and the dredge base and the gap between the first seal and the dredge vertical rod to further improve the sealing between the dredge vertical rod and the dredge base.

[0015] In an optional embodiment, the dredging mechanism also includes a dredging cross bar, which is located in the horizontal connecting section, and one end of the dredging cross bar extends toward the feed control valve and the other end is connected to the dredging vertical bar, so that while the dredging vertical bar is used to perform vertical dredging, the dredging cross bar is driven to hit the side wall of the horizontal pipe to perform horizontal dredging, thereby dredging all conveying channels between the raw material hopper and the feed control valve.

[0016] In an optional embodiment, the dredging horizontal rod and the dredging vertical rod are detachably connected to facilitate the installation of the dredging horizontal rod and the dredging vertical rod.

[0017] In an optional embodiment, the raw material hopper is equipped with a discharge valve to facilitate controlling the output of powder from the raw material hopper.

[0018] In an optional embodiment, the raw material hopper is equipped with a breathing valve to allow clean gas to enter the raw material hopper.

[0019] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0020] 1. The utility model provides a powder vacuum feeding system capable of preventing blockage, comprising a raw material hopper, a batching tank and a feeding control valve, wherein the feeding control valve is connected in series between the raw material hopper and the batching tank, and also comprises a dredging mechanism, wherein the dredging mechanism comprises a dredging base, wherein a material channel connecting the feeding control valve and the raw material hopper is arranged in the dredging base, and a dredging vertical rod capable of rotating along its own axis is adapted to be arranged in the material channel, and a plurality of dredging convex portions are arranged on the circumferential side wall of the dredging vertical rod, thereby when the powder is blocked, the dredging vertical rod is driven to rotate to drive the dredging convex portions to stir the powder, thereby breaking up the powder embolism and achieving the effect of dredging.

[0021] 2. The anti-clogging powder vacuum feeding system provided by the utility model can reduce the amount of powder hanging on the wall by unblocking the convex part to stir the powder, thereby reducing the waste of powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] In the attached picture:

[0024] Figure 1 This is a schematic diagram of the structure of a powder vacuum feeding system that can prevent clogging using an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the explosion structure of the dredging mechanism according to the embodiment of the utility model.

[0026] Marks and corresponding parts names in the attached drawings:

[0027] 10-raw material hopper, 11-discharging valve, 12-breathing valve, 20-dosing tank, 30-feeding control valve, 40-dredge base, 41-vertical connecting section, 42-lateral connecting section, 50-dredge vertical rod, 51-dredge convex part, 60-soft connecting pipe, 71-first sealing member, 72-second sealing member, 80-dredge horizontal rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0029] In the description of the embodiments of the present application, the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is conventionally placed when in use, or is the orientation or position relationship conventionally understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] At the same time, the terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] Example

[0032] Combination Figure 1 The present embodiment provides a powder vacuum feeding system capable of preventing clogging, comprising: a raw material hopper 10, the raw material hopper 10 is used to store powder raw materials; a batching tank 20, the batching tank 20 is used to temporarily store powder raw materials; a feed control valve 30, the feed control valve 30 is connected in series between the raw material hopper 10 and the batching tank 20, and the feed control valve 30 can control the on-off connection between the batching tank 20 and the raw material hopper 10; a dredging mechanism, the dredging mechanism includes a dredging base 40, a material channel is arranged in the dredging base 40, and the material channel connects the feed control valve 30 and the raw material hopper 10; wherein, a dredging vertical rod 50 is adapted in the material channel, and a plurality of dredging protrusions 51 are arranged on the circumferential side wall of the dredging vertical rod 50, and the dredging vertical rod 50 can rotate along its own axis.

[0033] Specifically, the raw material hopper 10 can be a sealed cavity to store the powder raw material to prevent the powder raw material from being contaminated. At the same time, the raw material hopper 10 is adapted to be equipped with a breathing valve 12 to allow clean gas to enter the raw material hopper 10.

[0034] Usually, the raw material hopper 10 is equipped with a discharge valve 11 to control the output of the powder from the raw material hopper 10. The discharge valve 11 is generally a manual valve to manually control the on and off of the raw materials. It should be noted that after the raw material hopper 10 is connected, the discharge valve 11 is in a normally open state, and the size of the powder flow can be manually controlled, and the upper end of the dredging vertical rod 50 extends to the discharge end of the discharge valve 11.

[0035] As for the feed control valve 30, a pneumatic diaphragm valve is used to prevent the powder from affecting the closing of the feed control valve 30, and also to prevent the lubricating medium in the valve body from contaminating the powder.

[0036] Combination Figure 2 Specifically, the material channel includes a vertical connecting section 41 and a horizontal connecting section 42 which are interconnected. The vertical connecting section 41 is connected to the raw material hopper 10, and the horizontal connecting section 42 is connected to the feed control valve 30, so as to facilitate the parallel arrangement of the raw material hopper 10 and the batching tank 20, thereby shortening the length of the connecting pipe between the raw material hopper 10 and the batching tank 20, and further reducing the residual powder hanging on the wall.

[0037] It is understandable that a soft connecting pipe 60 is connected between the vertical connecting section 41 and the raw material hopper 10, and the dredging protrusion 51 is located in the soft connecting pipe 60 to absorb the impact during dredging and prevent the connecting pipe from loosening.

[0038] In this embodiment, the flexible connecting tube 60 is made of a transparent material to realize visualization of material transportation and facilitate observation of whether the powder is blocked and the effect of unblocking.

[0039] Among them, the lower end of the dredging vertical rod 50 extends to the outside of the lower end of the vertical connecting section 41, and the dredging vertical rod 50 and the dredging base 40 are sealed by a first sealing member 71 to seal the gap between the dredging vertical rod 50 and the dredging base 40 to prevent powder and vacuum leakage.

[0040] On this basis, the present embodiment also includes a second seal 72, which is sleeved on the lower end of the dredging base 40. The second seal 72 can seal the gap between the first seal 71 and the dredging base 40 and the gap between the first seal 71 and the dredging vertical rod 50, so as to further improve the sealing between the dredging vertical rod 50 and the dredging base 40.

[0041] Combine again Figure 2 The dredging mechanism further includes a dredging cross bar 80, which is located in the transverse connecting section 42, and one end of the dredging cross bar 80 extends toward the feed control valve 30, and the other end is connected to the dredging vertical bar 50. In this embodiment, the dredging cross bar 80 extends transversely to the feed end of the feed control valve 30, so as to perform vertical dredging through the dredging vertical bar 50, and drive the dredging cross bar 80 to hit the side wall of the transverse pipeline to perform transverse dredging, thereby dredging all the conveying channels between the raw material hopper 10 and the feed control valve 30.

[0042] In addition, the dredging cross bar 80 is detachably connected to the dredging vertical bar 50, so as to facilitate the installation of the dredging cross bar 80 and the dredging vertical bar 50. The dredging vertical bar 50 can be driven manually, electrically or pneumatically. In this embodiment, it is preferred to drive the dredging vertical bar 50 to rotate manually.

[0043] In summary, the anti-clogging powder vacuum feeding system provided in this embodiment includes a raw material hopper 10, a batching tank 20 and a feed control valve 30. The feed control valve 30 is connected in series between the raw material hopper 10 and the batching tank 20, and also includes a dredging mechanism. The dredging mechanism includes a dredging base 40. The dredging base 40 is provided with a material channel connecting the feed control valve 30 and the raw material hopper 10, and the material channel is adapted to be equipped with a dredging vertical rod 50 that can rotate along its own axis, and a plurality of dredging protrusions 51 are provided on the circumferential side wall of the dredging vertical rod 50.

[0044] During use, the vacuum system is used to draw vacuum from the batching tank 20, so that the vacuum degree in the batching tank 20 reaches the set range (generally, the upper and lower limits are set arbitrarily in the range of 0.01Mp41 to -0.09Mp41), and the feed control valve 30 is opened after the vacuum degree reaches the upper limit to release the vacuum (after the vacuum degree in the batching tank 20 reaches the set lower limit, the pneumatic diaphragm valve is closed to store the vacuum pressure), and the powder in the raw material hopper 10 enters the batching tank 20 under the attraction of negative pressure, waiting for subsequent production. When the powder is blocked, the unblocking vertical rod 50 is driven to rotate to drive the unblocking convex part 51 to stir the powder, thereby breaking up the powder embolism and playing the role of unblocking. At the same time, stirring the powder by the unblocking convex part 51 can reduce the amount of powder hanging on the wall.

[0045] In summary, the anti-clogging powder vacuum feeding system provided in this embodiment can dredge the powder conveying pipeline to avoid the blockage of the powder during the conveying process, and can also reduce the waste of the powder hanging on the wall during the conveying process. It is not only suitable for the feeding of progesterone raw materials, but also suitable for the feeding of other powder raw materials.

[0046] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A powder vacuum feeding system capable of preventing blockage, characterized in that: include: A raw material hopper (10), wherein the raw material hopper (10) is used to store powdered raw materials; A batching tank (20), wherein the batching tank (20) is used for temporarily storing powder raw materials; A feed control valve (30), the feed control valve (30) being connected in series between the raw material hopper (10) and the batching tank (20), the feed control valve (30) being capable of controlling the on / off connection between the batching tank (20) and the raw material hopper (10); A dredging mechanism, the dredging mechanism comprising a dredging base (40), a material channel being arranged in the dredging base (40), the material channel being in communication with the feed control valve (30) and the raw material hopper (10); Wherein, a dredging vertical rod (50) is adapted in the material channel, a plurality of dredging protrusions (51) are arranged on the circumferential side wall of the dredging vertical rod (50), and the dredging vertical rod (50) can rotate along its own axis.

2. The anti-clogging powder vacuum feeding system according to claim 1, characterized in that: The material channel comprises a vertical connecting section (41) and a horizontal connecting section (42) which are connected to each other. The vertical connecting section (41) is connected to the raw material hopper (10), and the horizontal connecting section (42) is connected to the feed control valve (30).

3. The anti-clogging powder vacuum feeding system according to claim 2, characterized in that: A soft connection pipe (60) is connected between the vertical connecting section (41) and the raw material hopper (10), and the dredging protrusion (51) is located inside the soft connection pipe (60).

4. The anti-clogging powder vacuum feeding system according to claim 3, characterized in that: The soft connecting tube (60) is made of transparent material.

5. The anti-clogging powder vacuum feeding system according to claim 2, characterized in that: The lower end of the dredging vertical rod (50) extends to the outside of the lower end of the vertical connecting section (41), and the dredging vertical rod (50) and the dredging base (40) are sealed by a first sealing member (71).

6. The anti-clogging powder vacuum feeding system according to claim 5, characterized in that: It also includes a second sealing member (72), which is sleeved on the lower end of the dredging base (40), and the second sealing member (72) is capable of sealing the gap between the first sealing member (71) and the dredging base (40) and the gap between the first sealing member (71) and the dredging vertical rod (50).

7. The anti-clogging powder vacuum feeding system according to claim 2, characterized in that: The dredging mechanism also includes a dredging cross bar (80), which is located in the transverse connecting section (42), and one end of the dredging cross bar (80) extends toward the feed control valve (30) and the other end is connected to the dredging vertical bar (50).

8. The anti-clogging powder vacuum feeding system according to claim 7, characterized in that: The dredging horizontal rod (80) is detachably connected to the dredging vertical rod (50).

9. The anti-clogging powder vacuum feeding system according to any one of claims 1 to 8, characterized in that: The raw material hopper (10) is equipped with a discharge valve (11).

10. The anti-clogging powder vacuum feeding system according to claim 9, characterized in that: The raw material hopper (10) is equipped with a breathing valve (12).

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