Multi-stage screening device for chemical reagent auxiliaries

Abstract

The utility model discloses a multistage screening device for chemical reagent assistants, which comprises an equipment frame, the top of the equipment frame is fixedly connected with a feeding hopper, the top of the equipment frame is provided with a dust collecting assembly, the inner side of the equipment frame is provided with a screening mechanism, and the screening mechanism comprises a screening assembly and a dust collecting assembly. Comprising a supporting rod installed on the surface of an equipment frame, and one end of the supporting rod is rotationally connected with a rotating rod. According to the multi-stage screening device for the chemical reagent auxiliaries, the screening mechanism is arranged, and under driving of a driving motor, a screening frame and a first screening plate, a second screening plate and a third screening plate installed on the inner wall of the screening frame synchronously swing; and through the first sieve plate, the second sieve plate and the third sieve plate which are obliquely designed, multi-stage screening operation on the raw materials for chemical reagent additive production is achieved, and therefore the screening quality of the raw materials is improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical manufacturing technology, specifically to a multi-stage sieving device for chemical reagents and auxiliaries. Background Technology

[0002] The reference patent title is: A screening device for pharmaceutical raw material production (Authorization Announcement No.: CN214052534U, Authorization Announcement Date: 2021.08.27). It includes a housing, a base, and pulleys. The bottom of the housing is fixedly connected to the top of the base, and the bottom of the base is fixedly connected to the pulleys. A filter screen layer is slidably connected to the inner surface of the housing, and a support is fixedly connected to the inner surface of the housing. In this screening device, when the screening device is started, the servo motor is turned on. The servo motor drives the threaded rod to rotate, which in turn drives the connecting block at the top of the threaded rod to rotate, thereby driving the brush to rotate. Simultaneously, the filter screen layer moves up and down with the rotation of the threaded rod, causing the filter screen layer to vibrate. Pharmaceutical raw materials clogging the filter screen layer can be shaken off. When the filter screen layer moves to the top of the threaded rod, the brush agitates the filter screen layer, preventing it from becoming clogged, thus improving the working efficiency of the device and consequently improving the effectiveness of the screening device for pharmaceutical raw material production.

[0003] Based on the aforementioned documents: Chemical reagents are relative standard substances for chemical research and component analysis, and are an important condition for scientific and technological progress. They are widely used in the synthesis, separation, qualitative and quantitative analysis of substances. They can be said to be the eyes of chemists. Chemical reagents are indispensable in the daily work of factories, schools, hospitals and research institutes. In medicine, excipients are defined as excipients and additives used in the production of drugs and the preparation of prescriptions. That is, the general term for all materials other than the main active ingredients of drugs. They are important components of pharmaceutical preparations. In industrial production, it is necessary to screen chemical reagents and excipients. However, most existing screening devices only have single-layer screening capabilities, which makes it difficult to screen chemical reagent and excipient raw materials in multiple stages, resulting in poor actual screening effect. Therefore, this utility model provides a multi-stage screening device for chemical reagents and excipients. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-stage sieving device for chemical reagents and auxiliaries, which solves the problem that most existing sieving devices only have single-layer sieving capabilities and are difficult to perform multi-stage sieving of chemical reagent and auxiliary raw materials, resulting in poor actual sieving effects.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage sieving device for chemical reagents and auxiliaries, comprising a frame, a feed funnel fixedly connected to the top of the frame, a dust collection assembly on the top of the frame, and a sieving mechanism on the inner side of the frame, the sieving mechanism comprising:

[0006] The screening assembly includes a support rod mounted on the surface of the equipment frame. One end of the support rod is rotatably connected to a rotating rod, and one end of the rotating rod is rotatably connected to a screening frame. The inner wall of the screening frame is fixedly connected to a first screen plate, a second screen plate, and a third screen plate. A collection plate is installed on one side of each of the first screen plate, the second screen plate, and the third screen plate.

[0007] The drive assembly is located on one side of the equipment rack;

[0008] The opening and closing component is located on one side of the screening frame.

[0009] Preferably, the drive assembly includes a drive motor mounted on one side of the equipment frame, one end of the output shaft of the drive motor is fixedly connected to a drive rod via a coupling, and one end of the drive rod causes the screening frame to swing via a transmission assembly.

[0010] Preferably, the transmission assembly includes a transmission plate mounted on one end of the drive rod, a transmission rod rotatably connected to the inner side of the transmission plate, and one end of the transmission rod rotatably connected to the bottom of the screening frame.

[0011] Preferably, the opening and closing assembly includes a fixing block installed on one side of the screening frame, a control rod slidably connected inside the fixing block, a control block fixedly connected to the top of the control rod, an opening and closing plate fixedly connected to the bottom of the control rod, a control spring fixedly connected to the bottom of the fixing block, and one end of the control spring fixedly connected to the top of the opening and closing plate.

[0012] Preferably, one end of the collecting plate extends through to the outside of the screening frame, and the surface of the opening and closing plate is in contact with the inner surface of the collecting plate.

[0013] Preferably, the dust collection assembly includes a dust collection box installed on the top of the equipment frame, and an exhaust fan is fixedly connected to the dust collection box through a dust collection pipe. Multiple sets of exhaust pipes are fixedly connected to one side of the exhaust fan through a diversion pipe.

[0014] Beneficial effects

[0015] This invention provides a multi-stage sieving device for chemical reagents and auxiliaries. Compared with the prior art, it has the following advantages:

[0016] 1. This multi-stage sieving device for chemical reagent auxiliaries uses a drive motor to rotate a drive rod and a transmission plate. The rotation of the transmission plate causes one end of the drive rod to rotate inside the transmission plate, while the other end rotates at the bottom of the sieving frame. This, through the transmission plate, pushes the entire sieving frame to the right. At this time, under the limitation of the rotating rod and the support rod, the sieving frame will perform a reciprocating oscillation operation, thereby performing multi-stage sieving of the raw materials through the first, second, and third sieve plates. By setting up a sieving mechanism, driven by the drive motor, the sieving frame and the first, second, and third sieve plates installed on its inner wall perform synchronous oscillation operations. The inclined design of the first, second, and third sieve plates enables multi-stage sieving of the raw materials used in the production of chemical reagent auxiliaries, thereby improving the sieving quality of the raw materials.

[0017] 2. The chemical reagent auxiliaries use a multi-stage sieving device, which is equipped with a dust collection component. Driven by an induced draft fan, it can collect the dust generated during the falling raw materials and sieving process, thus preventing dust from scattering and affecting the surrounding environment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the external structure of this utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the dust collection component of this utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the screening component of this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the screening frame of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1-Equipment frame, 2-Feed hopper, 3-Dust collection assembly, 31-Dust collection box, 32-Dust collection pipe, 33-Exhaust fan, 34-Diverter pipe, 4-Screening mechanism, 41-Screening assembly, 411-Support rod, 412-Rotating rod, 413-Screening frame, 414-First screen plate, 415-Second screen plate, 416-Third screen plate, 417-Collection plate, 42-Drive assembly, 421-Drive motor, 422-Drive rod, 43-Opening and closing assembly, 431-Fixing block, 432-Control rod, 433-Control block, 434-Opening and closing plate, 435-Control spring, 5-Transmission assembly, 51-Transmission plate, 52-Transmission rod. 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] Please see Figure 1-5 This utility model provides a technical solution:

[0026] A multi-stage sieving device for chemical reagents and auxiliaries includes a frame 1, a feed funnel 2 fixedly connected to the top of the frame 1, a dust collection assembly 3 on the top of the frame 1, and a sieving mechanism 4 on the inner side of the frame 1. The sieving mechanism 4 includes:

[0027] The screening assembly 41 includes a support rod 411 mounted on the surface of the equipment frame 1. One end of the support rod 411 is rotatably connected to a rotating rod 412. One end of the rotating rod 412 is rotatably connected to a screening frame 413. The inner wall of the screening frame 413 is fixedly connected to a first screen plate 414, a second screen plate 415, and a third screen plate 416. A collection plate 417 is installed on one side of each of the first screen plate 414, the second screen plate 415, and the third screen plate 416.

[0028] The drive assembly 42 is located on one side of the equipment rack 1;

[0029] The opening and closing component 43 is located on one side of the screening frame 413.

[0030] The first sieve plate 414 is positioned above the second sieve plate 415, and the second sieve plate 415 is positioned above the third sieve plate 416.

[0031] In this embodiment, the drive assembly 42 includes a drive motor 421 installed on one side of the equipment frame 1. One end of the output shaft of the drive motor 421 is fixedly connected to a drive rod 422 via a coupling. One end of the drive rod 422 causes the screening frame 413 to swing via the transmission assembly 5.

[0032] The drive motor 421 is a three-phase asynchronous motor and is connected to an external circuit via wires; the drive rod 422 rotates on the surface of the equipment frame 1.

[0033] In this embodiment, the transmission assembly 5 includes a transmission plate 51 installed at one end of the drive rod 422, and a transmission rod 52 is rotatably connected to the inner side of the transmission plate 51. One end of the transmission rod 52 is rotatably connected to the bottom of the screening frame 413.

[0034] By starting the drive motor 421, the drive rod 422 and the transmission plate 51 are driven to rotate. The rotation of the transmission plate 51 causes one end of the transmission rod 52 to rotate inside the transmission plate 51, while the other end of the transmission rod 52 rotates at the bottom of the screening frame 413. This, through the transmission plate 51, pushes the screening frame 413 to move to the right. At this time, under the limitation of the rotating rod 412 and the support rod 411, the screening frame 413 will perform a reciprocating swing operation, and then pass through the first screen plate 414, the second screen plate 422, the third screen plate 422, the fourth screen plate 422, the fifth screen plate 422, the sixth screen plate 422, the seventh screen plate 422, the eighth screen plate 422, the ninth screen plate 422, the elliptical ... The second sieve plate 415 and the third sieve plate 416 perform multi-stage screening of the raw materials. With the screening mechanism 4 installed, the screening frame 413 and the first sieve plate 414, the second sieve plate 415 and the third sieve plate 416 installed on its inner wall are oscillating synchronously under the drive of the drive motor 421. The first sieve plate 414, the second sieve plate 415 and the third sieve plate 416 with the inclined design realize multi-stage screening of the raw materials used in the production of chemical reagents and auxiliaries, thereby improving the screening quality of the raw materials.

[0035] In this embodiment, the opening and closing assembly 43 includes a fixing block 431 installed on one side of the screening frame 413. The fixing block 431 is slidably connected to a control rod 432. The top end of the control rod 432 is fixedly connected to the control block 433. The bottom end of the control rod 432 is fixedly connected to an opening and closing plate 434. The bottom of the fixing block 431 is fixedly connected to a control spring 435. One end of the control spring 435 is fixedly connected to the top of the opening and closing plate 434.

[0036] When the control spring 435 is not affected by external force, the opening and closing plate 434 will be positioned on the inner surface of the collecting plate 417, and the opening and closing plate 434 will close the discharge port opened on one side of the screening frame 413; one side of the opening and closing plate 434 is in contact with one side of the screening frame 413.

[0037] In this embodiment, one end of the collecting plate 417 extends through to the outside of the screening frame 413, and the surface of the opening and closing plate 434 is in contact with the inner surface of the collecting plate 417.

[0038] In this embodiment, the dust collection assembly 3 includes a dust collection box 31 installed on the top of the equipment frame 1. The dust collection box 31 is fixedly connected to an exhaust fan 33 through a dust collection pipe 32. One side of the exhaust fan 33 is fixedly connected to multiple sets of exhaust pipes through a diversion pipe 34.

[0039] The induced draft fan 33 is connected to an external circuit via wires.

[0040] By installing a dust collection component 3, the dust generated during the falling raw materials and screening process can be collected in a concentrated manner by the blower 33, thus preventing dust from scattering and affecting the surrounding environment.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] During operation, the raw materials for the production of chemical reagents and auxiliaries to be screened are first injected into the feed funnel 2. Then, the raw materials enter the screening frame 413 through the feed funnel 2. During this process, the induced draft fan 33 is activated, and the dust generated during screening and the falling raw materials are collected in the integrated box 31 via the induced draft pipe, diversion pipe 34, and dust collection pipe 32. Simultaneously, the drive motor 421 is activated, driving the drive rod 422 and transmission plate 51 to rotate. The rotation of the transmission plate 51 causes one end of the drive rod 52 to rotate inside the transmission plate 51, while the other end of the drive rod 52 rotates at the bottom of the screening frame 413. This, through the transmission plate 51, pushes the entire screening frame 413 to the right. At this time, the screening frame 413 rotates along the drive rod 422. Under the limiting position of support rod 411 and 12, the screening frame 413 will reciprocate and swing, and then perform multi-stage screening of the raw material through the first screen plate 414, the second screen plate 415 and the third screen plate 416. The raw material after screening by the three sets of screen plates will be discharged through the opening on one side of the screening frame 413 for centralized collection. The large particles of raw material that are screened will roll into the three sets of collection plates 417 for centralized collection. After the work is completed, by pulling the control block 433 upward, the control rod 432 and the opening and closing plate 434 will slide upward, so that the opening and closing plate 434 separates from the inner surface of the collection plate 417, and then the discharge port opened on one side of the screening frame 413 will be opened to discharge the large particles of raw material that are screened for collection.

[0043] 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.

[0044] 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 multi-stage sieving device for chemical reagents and auxiliaries, comprising a frame (1), characterized in that: A feeding hopper (2) is fixedly connected to the top of the equipment frame (1), a dust collection assembly (3) is provided on the top of the equipment frame (1), and a screening mechanism (4) is provided on the inner side of the equipment frame (1). The screening mechanism (4) includes: The screening assembly (41) includes a support rod (411) mounted on the surface of the equipment frame (1). One end of the support rod (411) is rotatably connected to a rotating rod (412). One end of the rotating rod (412) is rotatably connected to a screening frame (413). The inner wall of the screening frame (413) is fixedly connected to a first screen plate (414), a second screen plate (415), and a third screen plate (416). A collection plate (417) is installed on one side of each of the first screen plate (414), the second screen plate (415), and the third screen plate (416). A drive assembly (42) is disposed on one side of the equipment rack (1); An opening and closing component (43) is provided on one side of the screening frame (413).

2. The multi-stage sieving device for chemical reagents and auxiliaries according to claim 1, characterized in that: The drive assembly (42) includes a drive motor (421) installed on one side of the equipment frame (1). One end of the output shaft of the drive motor (421) is fixedly connected to a drive rod (422) via a coupling. One end of the drive rod (422) causes the screening frame (413) to swing via a transmission assembly (5).

3. The multi-stage sieving device for chemical reagents and auxiliaries according to claim 2, characterized in that: The transmission assembly (5) includes a transmission plate (51) installed at one end of the drive rod (422), and a transmission rod (52) is rotatably connected to the inner side of the transmission plate (51). One end of the transmission rod (52) is rotatably connected to the bottom of the screening frame (413).

4. The multi-stage sieving device for chemical reagents and auxiliaries according to claim 1, characterized in that: The opening and closing assembly (43) includes a fixing block (431) installed on one side of the screening frame (413). The fixing block (431) is internally connected to a control rod (432). The top end of the control rod (432) is fixedly connected to the control block (433), and the bottom end of the control rod (432) is fixedly connected to an opening and closing plate (434). The bottom of the fixing block (431) is fixedly connected to a control spring (435), and one end of the control spring (435) is fixedly connected to the top of the opening and closing plate (434).

5. The multi-stage sieving device for chemical reagents and auxiliaries according to claim 4, characterized in that: One end of the collecting plate (417) extends through to the outside of the screening frame (413), and the surface of the opening and closing plate (434) is in contact with the inner surface of the collecting plate (417).

6. The multi-stage sieving device for chemical reagents and auxiliaries according to claim 1, characterized in that: The dust collection assembly (3) includes a dust collection box (31) installed on the top of the equipment frame (1). The dust collection box (31) is fixedly connected to an induced draft fan (33) through a dust collection pipe (32). One side of the induced draft fan (33) is fixedly connected to multiple sets of induced draft pipes through a diversion pipe (34).

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