Airflow stirring kettle for uniformly mixing raw materials in pharmaceutical industry

Abstract

The airflow stirring kettle comprises a reaction kettle body, the upper surface of the reaction kettle body is fixedly connected with a feeding port, the reaction kettle body is rotationally connected with the outer side of an air inlet pipe, the bottom of the air inlet pipe is fixedly connected with an air distribution box, and the outer side of the air distribution box is fixedly connected with an air spraying pipe. The inner wall of the reaction kettle body is fixedly connected with a filter plate; the outer side of an air inlet pipe is fixedly connected with one end of a cleaning plate; the bottom of the air distribution box is fixedly connected with a rotating shaft; the bottom of the rotating shaft is fixedly connected with a lower gear; through the upper gear and the lower gear, the rotating shaft and the sleeve rotate reversely, so that the gas ejector pipe and the stirring plate rotate reversely, the mixing effect of liquid medicine in the reaction kettle is improved, and the problem of low mixing efficiency caused by one-way rotation of the gas ejector pipe is solved.

Description

Technical Field

[0001] This utility model relates to the field of mixing tank technology, specifically to a gas flow mixing tank for pharmaceutical raw materials. Background Technology

[0002] A reaction vessel is a commonly used reaction container in chemical production. It consists of a vessel body with a feed inlet at the top and a discharge outlet at the bottom. Liquid materials enter the reaction vessel through the feed inlet and undergo a chemical reaction inside. Gas-stirred reaction vessels use flowing air to assist in stirring the materials.

[0003] To address the problem of low mixing efficiency caused by the unidirectional rotation of the stirring plate in traditional airflow stirred tanks, China Utility Model Disclosure (CN 218784803U) discloses a wall-mounted pharmaceutical airflow stirred tank. This patent includes a stirred tank body and an air inlet pipe on the upper surface. The bottom end of the air inlet pipe is fixedly connected to a flow divider box. The airflow ejected from the jet pipe changes the direction of rotation, reducing the time required for a single reaction and thus effectively improving production efficiency.

[0004] However, the aforementioned patent reverses the rotation by changing the direction of the jet nozzle. But even with the jet nozzle rotating in the opposite direction, the pharmaceuticals inside the stirred tank still rotate in one direction, affecting the mixing efficiency. Traditional airflow stirred tanks typically introduce inert gas directly into the reactor through the inlet pipe, thereby using the airflow to drive the liquid flow and mix. However, this cannot change the direction of gas flow, resulting in the mixed liquid only being able to move and mix in one direction. This reduces the fluidity of the liquid, slows down the mixing reaction rate, prolongs the time required for a single reaction, and reduces production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a pharmaceutical raw material mixing and homogenization gas flow stirring vessel to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pharmaceutical raw material mixing and homogenizing gas flow stirring vessel, comprising a reaction vessel body, the upper surface of which is fixedly connected to a feed inlet, the reaction vessel body being rotatably connected to the outer side of an air inlet pipe, the bottom of which is fixedly connected to a gas distribution box, the outer side of which is fixedly connected to a jet pipe, the outer side of which is fixedly connected to several jet ports, the outer side of which is fixedly connected to one end of a scraper, the inner wall of which is fixedly connected to a filter plate, the outer side of which is fixedly connected to one end of a cleaning plate, the bottom of which is fixedly connected to a rotating shaft, the bottom of which is fixedly connected to a lower gear, the outer side of which is rotatably connected to a sleeve, the outer side of which is fixedly connected to several stirring plates, the outer side of which is fixedly connected to an upper gear, the bottom of which is fixedly connected to a box, the inner wall of which is rotatably connected to a connecting shaft, one end of which is fixedly connected to a drive gear, and the bottom of which is fixedly connected to a discharge port.

[0007] Preferably, the interior of the reactor body is interconnected with the bottom of the inlet and outlet, and the top of the reactor body is rotatably connected to the outside of the air inlet pipe.

[0008] Preferably, the jet pipe is an L-shaped pipe, the jet pipe is interconnected with the interior of the gas distribution box, the outer side of the jet pipe is fixedly connected to several jet ports, and a one-way valve is provided inside the jet port.

[0009] Preferably, the scrapers are evenly distributed in a circumferential array on the outside of the gas distribution box, and the jet nozzles and scrapers are arranged alternately.

[0010] Preferably, the bottom of the rotating shaft extends into the housing and is fixedly connected to the lower gear. The lower gear and the upper gear are located on the upper and lower sides of the drive gear, respectively. The drive gear meshes with both the lower gear and the upper gear. The rotating shaft is rotatably connected to the outer side of the sleeve through a bearing sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model allows gas to enter the gas distribution box through the air inlet pipe, causing the gas to be ejected from the jet nozzle on the side of the jet pipe. This causes the jet pipe to rotate, and the gas distribution box drives the rotating shaft to rotate synchronously. The rotating shaft causes the lower gear to rotate synchronously, and the lower gear causes the drive gear to drive the upper gear to rotate. Since the upper gear and the lower gear are located on the upper and lower sides of the drive gear respectively, the rotating shaft and the sleeve rotate in opposite directions, thereby causing the jet pipe and the stirring plate to rotate in opposite directions. This improves the mixing effect of the liquid inside the reactor and solves the problem of low mixing efficiency caused by the unidirectional rotation of the jet pipe.

[0013] 2. This utility model also allows air entering through the air intake pipe to be ejected from the jet nozzle, which drives the jet pipe to rotate and filter the particulate matter of the pharmaceutical through the filter plate. When the particulate pharmaceutical clumps together, the gas diversion box drives the cleaning plate to rotate and break up the clumps of pharmaceutical on the filter plate, thus avoiding the low mixing efficiency caused by pharmaceutical clumps. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an internal sectional view of the overall structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the internal structure of the sleeve of this utility model;

[0017] Figure 4 This is a schematic diagram of the gas distribution box and rotating shaft structure of this utility model;

[0018] Figure 5 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Reactor body; 2. Feed inlet; 3. Gas inlet pipe; 4. Gas distribution box; 5. Jet pipe; 6. Jet nozzle; 7. Scraper; 8. Filter plate; 9. Cleaning plate; 10. Rotating shaft; 11. Lower gear; 12. Sleeve; 13. Stirring plate; 14. Upper gear; 15. Housing; 16. Connecting shaft; 17. Drive gear; 18. Discharge port. 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] Please see Figure 1-5This utility model provides a technical solution: a pharmaceutical raw material mixing uniform airflow stirring vessel, including a reaction vessel body 1, the upper surface of the reaction vessel body 1 is welded and fixed to the feed inlet 2, the interior of the reaction vessel body 1 is interconnected with the bottom of the feed inlet 2 and the discharge outlet 18, the reaction vessel body 1 is rotatably connected to the outside of the air inlet pipe 3, the bottom of the air inlet pipe 3 is connected and fixed to the gas distribution box 4, the outside of the gas distribution box 4 is welded and fixed to the jet pipe 5, the outside of the jet pipe 5 is welded and fixed to several jet ports 6, the outside of the gas distribution box 4 is welded and fixed to one end of the scraper 7, and the inner wall of the reaction vessel body 1 is connected to the air inlet pipe 2. The filter plate 8 is welded and fixed; the outer side of the air inlet pipe 3 is welded and fixed to one end of the cleaning plate 9; the bottom of the gas distribution box 4 is welded and fixed to the rotating shaft 10; the bottom of the rotating shaft 10 is welded and fixed to the lower gear 11; the outer side of the rotating shaft 10 is rotatably connected to the sleeve 12; the outer side of the sleeve 12 is welded and fixed to several stirring plates 13; the outer side of the sleeve 12 is welded and fixed to the upper gear 14; the bottom of the reactor body 1 is welded and fixed to the box body 15; the inner wall of the box body 15 is rotatably connected to the connecting shaft 16; one end of the connecting shaft 16 is welded and fixed to the drive gear 17; and the bottom of the reactor body 1 is welded and fixed to the discharge port 18.

[0022] The jet pipe 5 is an L-shaped pipe, and it is interconnected with the interior of the gas distribution box 4. Several jet ports 6 are welded and fixed to the outside of the jet pipe 5. One-way valves are installed inside the jet ports 6. High-pressure gas enters the gas distribution box 4 from the inlet pipe 3 and exits from the jet ports 6, thereby driving the inlet pipe 3 and the jet pipe 5 to rotate and mix the gases. No additional drive source is required.

[0023] Scrapers 7 are evenly distributed in a circumferential array on the outside of the gas distribution box 4. The jet nozzles 6 and scrapers 7 are arranged alternately to ensure that the rotation of the jet pipe 5 does not affect the cleaning effect of the scrapers 7 on the inner wall of the reactor body 1. The scrapers 7 effectively enhance the cleaning effect on the inner wall of the reactor body 1.

[0024] The bottom of the rotating shaft 10 extends into the housing 15 and is welded and fixed to the lower gear 11. The lower gear 11 and the upper gear 14 are located on the upper and lower sides of the drive gear 17, respectively. The drive gear 17 meshes with both the lower gear 11 and the upper gear 14. The rotating shaft 10 is rotatably connected to the outside of the sleeve 12 through a bearing sleeve.

[0025] Working principle: During use, the liquid medicine enters the reactor body 1 through the feed inlet 2. The filter plate 8 breaks up any clumps of medicine, ensuring that the granular medicine enters evenly and enhancing the mixing efficiency of the medicine inside the reactor body 1. Gas is introduced into the gas distribution box 4 through the air inlet pipe 3 and then ejected from the jet nozzle 6, thereby driving the jet pipe 5 to rotate. The jet pipe 5 causes the rotating shaft 10 to drive the lower gear 11 to rotate. The lower gear 11 drives the drive gear 17, causing the sleeve 12 and the upper gear 14 to rotate. This further causes the rotating shaft 10 and the sleeve 12 to rotate in opposite directions, thereby causing the scraper 7 and the stirring plate to rotate in opposite directions. 13. Reverse rotation effectively enhances the stirring and mixing of the pharmaceuticals inside the reactor body 1, improving the pharmaceutical reaction mixing efficiency. The rotation of the gas distribution box 4 drives the scraper 7 to rotate synchronously. The rotation of the scraper 7 cleans the adhering substances on the inner wall of the reactor body 1, avoiding the problem of pharmaceuticals adhering to the inner wall of the reactor body 1 and being difficult to clean. The pharmaceuticals entering through the air inlet pipe 3 are filtered through the filter plate 8. The rotation of the gas distribution box 4 drives the air inlet pipe 3 and the cleaning plate 9 to rotate. The rotation of the cleaning plate 9 breaks up the clumps of particles on the surface of the filter plate 8, ensuring that the pharmaceutical particles are fed in evenly.

[0026] 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.

[0027] 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 pharmaceutical raw material mixing and homogenization gas flow stirred tank, comprising a reaction vessel body (1), characterized in that: The upper surface of the reactor body (1) is fixedly connected to the feed inlet (2). The reactor body (1) is rotatably connected to the outside of the gas inlet pipe (3). The bottom of the gas inlet pipe (3) is fixedly connected to the gas distribution box (4). The outside of the gas distribution box (4) is fixedly connected to the jet pipe (5). The outside of the jet pipe (5) is fixedly connected to several jet ports (6). The outside of the gas distribution box (4) is fixedly connected to one end of the scraper (7). The inner wall of the reactor body (1) is fixedly connected to the filter plate (8). The outside of the gas inlet pipe (3) is fixedly connected to one end of the cleaning plate (9). The gas distribution box (4) The bottom is fixedly connected to the rotating shaft (10), the bottom of the rotating shaft (10) is fixedly connected to the lower gear (11), the outer side of the rotating shaft (10) is rotatably connected to the sleeve (12), the outer side of the sleeve (12) is fixedly connected to several stirring plates (13), the outer side of the sleeve (12) is fixedly connected to the upper gear (14), the bottom of the reactor body (1) is fixedly connected to the box body (15), the inner wall of the box body (15) is rotatably connected to the connecting shaft (16), one end of the connecting shaft (16) is fixedly connected to the drive gear (17), and the bottom of the reactor body (1) is fixedly connected to the discharge port (18).

2. The pharmaceutical raw material mixing and homogenizing gas flow stirred tank according to claim 1, characterized in that: The interior of the reactor body (1) is connected to the bottom of the feed inlet (2) and the discharge outlet (18), and the top of the reactor body (1) is rotatably connected to the outside of the air inlet pipe (3).

3. The pharmaceutical raw material mixing and homogenizing gas flow stirred tank according to claim 1, characterized in that: The jet pipe (5) is an L-shaped pipe, and the jet pipe (5) is connected to the gas distribution box (4). A one-way valve is installed inside the jet port (6).

4. The pharmaceutical raw material mixing and homogenizing gas flow stirred tank according to claim 1, characterized in that: The scrapers (7) are evenly distributed in a circular array on the outside of the gas diversion box (4), and the jet nozzle (6) and the scrapers (7) are arranged alternately.

5. The pharmaceutical raw material mixing and homogenizing gas flow stirred tank according to claim 1, characterized in that: The bottom of the rotating shaft (10) extends into the housing (15) and is fixedly connected to the lower gear (11). The lower gear (11) and the upper gear (14) are located on the upper and lower sides of the drive gear (17) respectively. The drive gear (17) meshes with the lower gear (11) and the upper gear (14) at the same time. The rotating shaft (10) is rotatably connected to the outside of the sleeve (12) through the bearing sleeve.

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