A medicine powder production device with cleaning function

Abstract

A medicinal powder production device with a cleaning function comprises: a feeding mechanism, an air flow mill and a powder collector. A storage tank is provided at the bottom of the powder collector, a cleaning pipe group is provided inside, and a negative pressure chamber is provided at the top. The negative pressure chamber is connected to the powder collector through a filter screen; multiple filters are arranged in an annular structure. The cleaning pipe group is provided with a main pipeline, and a first pipeline and a second pipeline connected to the main pipeline; the lower section of the cleaning pipe group is provided with a third pipeline connected to the main pipeline. A pressure stabilizing chamber is provided inside the negative pressure chamber. The interior of the pressure stabilizing chamber is a cavity structure connected to the source of the cleaning medium through a connecting pipe. The upper section of the main pipeline passes through the pressure stabilizing chamber upwards, and a sealing structure is provided between the main pipeline and the pressure stabilizing chamber. The side wall of the main pipeline located in the pressure stabilizing chamber is processed with multiple vents. The top of the main pipeline is connected to the rotating shaft of the motor for driving the cleaning pipe group to rotate. The structure is simple, thereby reducing the cleaning amount of the equipment and greatly shortening the cleaning time.

Description

Technical Field

[0001] The invention belongs to the field of medicine powder production, and in particular relates to a medicine powder production device with a cleaning function. Background Art

[0002] At present, most of the production of medicinal powders is carried out by airflow mill equipment. First, the airflow mill crushes the raw materials to refine the medicinal powder. The refined medicinal powder is screened out by the impeller grading mechanism to meet the particle size requirements. The fine powder is then collected by the cyclone separator, and then the mixed air containing the medicinal powder is discharged into the dust collector. The dust collector is used to further filter out the medicinal powder in the mixed air, and then the filtered air is discharged. Because the medicinal powder has relatively high requirements for the cleanliness of the production equipment, it needs to be cleaned frequently during production. However, the existing airflow mill used to produce medicinal powder has a complex structure and is not easy to clean. Each time it is cleaned, the internal parts of the equipment need to be disassembled and then cleaned. The cleaning process is very complicated, and each cleaning requires a lot of time to disassemble and assemble the parts. Summary of the invention

[0003] To address the deficiencies in the prior art, the present invention provides a medicine powder production device with a cleaning function, which has a simple structure and reduces the number of parts of the medicine powder production device that need to be removed for cleaning, thereby reducing the amount of equipment to be cleaned, simplifying the cleaning process, and greatly shortening the cleaning time.

[0004] In order to achieve the purpose of the present invention, the following scheme is proposed:

[0005] A medicine powder production device with a cleaning function comprises: a feeding mechanism, a jet mill and a powder collector. The upper section of the powder collector is a cylindrical structure, the lower section is a conical structure, a storage tank is provided at the bottom, and a cleaning pipe group is provided inside the powder collector.

[0006] A negative pressure chamber is provided on the top of the powder collector, and the negative pressure chamber is connected to the powder collector through a filter. The filter is used to isolate the medicine powder and allow air to pass smoothly into the negative pressure chamber; the filter extends vertically downward into the interior of the powder collector, and multiple filters are arranged in a ring structure on the powder collector as projected toward the bottom.

[0007] The cleaning pipe group is provided with a main pipe coaxial with the powder collector; the upper section of the cleaning pipe group corresponding to the powder collector is provided with a first pipe and a second pipe in the vertical direction, and the first pipe and the second pipe are both connected to the main pipe; in the projection of the bottom surface, the first pipe is located on the inner side of the annular structure formed by the filter screen, and the first pipe has an air outlet in the vertical direction on the side facing the filter screen, and the second pipe is located on the outer side of the annular structure formed by the filter screen, and the second pipe has air outlets on the side facing the filter screen and on the side facing the inner wall of the powder collector in the vertical direction; the lower section of the cleaning pipe group corresponding to the powder collector is obliquely provided with a third pipe, the third pipe is parallel to the side wall of the conical structure of the lower section of the powder collector, the third pipe is connected to the main pipe, and the third pipe has an air outlet on the side facing the inner wall of the powder collector.

[0008] A pressure stabilizing chamber is provided inside the negative pressure chamber. The interior of the pressure stabilizing chamber is a cavity structure which is connected to the source of the cleaning medium through a connecting pipe. The upper section of the main pipeline passes upward through the pressure stabilizing chamber. A sealing structure is provided between the main pipeline and the pressure stabilizing chamber. A plurality of ventilation holes are processed on the side wall of the main pipeline located in the pressure stabilizing chamber. The cleaning medium enters the main pipeline from the pressure stabilizing chamber through the ventilation holes.

[0009] The top of the main pipeline is connected to a rotating shaft of a motor for driving the cleaning pipe group to rotate.

[0010] Furthermore, the first pipe and the second pipe are arranged in pairs along the normal direction of the powder collector, each pair includes a first pipe and a second pipe, and multiple pairs of the first pipe and the second pipe are evenly arranged along the circumference of the powder collector.

[0011] Furthermore, a plurality of third pipes are evenly arranged along the circumference of the powder collector, and the angles between each of the third pipes are the same in the projection of the bottom surface.

[0012] Furthermore, the first pipeline and the third pipeline are both connected to the main pipeline through at least two connecting pipes, and the bottom of the second pipeline is connected to the main pipeline through a connecting pipe.

[0013] Furthermore, the main pipeline is divided into an upper pipeline and a lower pipeline, and the upper pipeline and the lower pipeline are connected by a pipe joint. The connecting position of the pipe joint is arranged in the negative pressure chamber, the first pipeline, the second pipeline and the third pipeline are all connected to the lower pipeline, and the vent hole is arranged in the upper pipeline.

[0014] Furthermore, a detachable sealing cover is provided on the top of the negative pressure chamber, and a flange is provided on the top of the upper pipe, which is connected to the main shaft of the motor through a connecting flange.

[0015] Furthermore, the pressure stabilizing chamber is an overall cylindrical structure with a cylindrical cavity inside, and the vent holes are evenly distributed along the circumference of the main pipeline.

[0016] Furthermore, the main pipeline passes through the upper and lower end surfaces of the pressure stabilizing chamber, and at least two sealing rings are respectively provided between the outer wall of the main pipeline and the inner wall of the pressure stabilizing chamber contacting the upper and lower ends.

[0017] Furthermore, a fixed retaining ring is provided above the connection between the outer periphery of the main pipeline and the pressure-stabilizing chamber, and a sealing ring is provided between the retaining ring and the upper end surface of the pressure-stabilizing chamber; a pressure ring is threadedly connected below the connection between the outer periphery of the main pipeline and the pressure-stabilizing chamber, and a sealing ring is provided between the pressure ring and the lower end surface of the pressure-stabilizing chamber.

[0018] Furthermore, the cleaning medium is water or steam.

[0019] The beneficial effects of the present invention are:

[0020] 1. This device connects the air flow mill directly to the dust collector through a pipeline, reducing the cyclone collector, so that a large amount of powder and a small amount of powder contained in the mixed air are uniformly collected in the storage tank at the bottom of the powder collector. The structure is simpler and the function of powder collection is realized. At the same time, because the cyclone collector is reduced, the parts that need to be cleaned are also reduced, the amount of cleaning of the equipment is reduced, and the cleaning time is saved.

[0021] 2. This device only needs to dismantle and clean the feeding mechanism and the air flow mill, while the powder collector with a more complex structure does not need to dismantle the internal parts to complete the internal cleaning, reducing the number of parts that need to be dismantled for cleaning, thereby greatly shortening the cleaning time. When cleaning the powder collector, the cleaning medium input into the cleaning pipe group is used to clean the inner wall and filter of the powder collector. The cleaning pipe group is driven by the motor to rotate continuously during the cleaning process, so that the cleaning medium can contact the inner wall and filter of the powder collector in a larger range, thereby increasing the cleaning coverage and making the cleaning more thorough.

[0022] 3. The rotating connection between the main pipeline and the pressure stabilizing chamber is equipped with radial seals and end face seals, which greatly improves the sealing effect and prevents leakage of the cleaning medium.

[0023] 4. The main pipeline is designed as a two-section structure of upper pipeline and lower pipeline, which is easy to assemble and more practical.

[0024] 5. The first pipe, the second pipe and the third pipe are evenly arranged along the circumference, so that the cleaning pipe group is more stable when rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0026] Figure 1 Shows the overall appearance of the present application;

[0027] Figure 2Shown along Figure 1 Sectional view in the AA direction;

[0028] Figure 3 Shows Figure 2 A partial enlarged view of the middle A;

[0029] Figure 4 The structure of the cleaning tube set is shown;

[0030] Figure 5 The structure of the upper pipeline is shown;

[0031] Figure 6 A side view of the present application is shown;

[0032] Figure 7 Shown along Figure 6 Cross-sectional view along the BB direction.

[0033] Markings in the figure: feeding mechanism-100, air flow mill-200, powder collector-300, storage tank-400, cleaning pipe group-500, main pipeline-510, vent-511, upper pipeline-512, flange-5121, lower pipeline-513, first pipeline-520, second pipeline-530, third pipeline-540, pipe joint-550, sealing ring-560, retaining ring-570, sealing ring-580, pressure ring-590, negative pressure chamber-600, filter screen-700, pressure stabilizing chamber-800, connecting pipe-810, motor-900. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the implementation modes of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] It should be noted that in the description of the present invention, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, and are only for the convenience of describing the present invention and simplifying the description. The terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. The terms "parallel", "perpendicular" and the like do not mean that the components are required to be absolutely parallel or perpendicular, but can be slightly tilted.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figures 1 to 4 , Figure 6 as well as Figure 7 As shown, a medicinal powder production device with a cleaning function includes: a feeding mechanism 100, a jet mill 200 and a powder collector 300.

[0039] Specifically, the upper section of the powder collector 300 is a cylindrical structure, and the lower section is a conical structure. Bolts are used to realize a detachable connection between the upper section and the lower section. A storage tank 400 is provided at the bottom of the lower section of the powder collector 300. Most of the powder input from the jet mill 200 directly enters the storage tank 400 for collection. A cleaning pipe group 500 is provided inside the powder collector 300 for cleaning the internal parts of the powder collector 300.

[0040] Specifically, a negative pressure chamber 600 is provided at the top of the powder collector 300, and the negative pressure chamber 600 is used to provide negative pressure air to the device, so that the medicine powder enters the powder collector 300 from the airflow mill 200. The negative pressure chamber 600 is connected to the powder collector 300 through a filter 700, and the filter 700 is used to isolate the medicine powder and allow the filtered air to pass smoothly into the negative pressure chamber 600. The filter 700 extends vertically downward into the interior of the powder collector 300, and a plurality of filter screens 700 are arranged in a ring structure in the projection of the bottom surface of the powder collector 300 to improve the filtering efficiency. The medicine powder mixed in the air of the powder collector 300 is blocked by the filter 700, so that it continues to stay in the powder collector 300, and the filtered air enters the negative pressure chamber 600 from the filter 700 and is then discharged.

[0041] Specifically, the cleaning pipe group 500 is provided with a main pipe 510 coaxial with the powder collector 300. The cleaning pipe group 500 is provided with a first pipe 520 and a second pipe 530 in the vertical direction corresponding to the upper section of the powder collector 300, and the first pipe 520 and the second pipe 530 are both connected to the main pipe 510. Figure 7As shown in the projection of the bottom surface, the first pipe 520 is located inside the annular structure formed by the filter screen 700, and the first pipe 520 has an air outlet in the vertical direction on the side facing the filter screen 700, which is used to clean the inner half circle of the filter screen 700. The second pipe 530 is located outside the annular structure formed by the filter screen 700, and the second pipe 530 has air outlets in the vertical direction on the side facing the filter screen 700 and the side facing the inner wall of the powder collector 300, which can clean the outer half circle of the filter screen 700 and the inner wall of the powder collector 300 at the same time. The cleaning pipe group 500 is inclinedly provided with a third pipe 540 corresponding to the lower section of the powder collector 300, and the third pipe 540 is connected to the main pipe 510, and the third pipe 540 has an air outlet on the side facing the inner wall of the powder collector 300. The third pipe 540 is parallel to the side wall of the conical structure of the lower section of the powder collector 300, so that the distance between each air outlet of the third pipe 540 and the inner wall of the lower section of the powder collector 300 is the same, thereby ensuring that the cleaning distance between the cleaning medium and the inner wall of the lower section of the powder collector 300 is the same during cleaning, thereby ensuring that the same cleaning pressure is conducive to improving the cleaning effect.

[0042] Specifically, a stabilizing chamber 800 is provided inside the negative pressure chamber 600, and the bottom of the stabilizing chamber 800 is suspended at the bottom of the negative pressure chamber 600 through a support rod. The interior of the stabilizing chamber 800 is a cavity structure, which is connected to the source of the cleaning medium through a connecting pipe 810, and the connecting pipe 810 passes through the side wall of the negative pressure chamber 600. The upper section of the main pipeline 510 passes upward through the stabilizing chamber 800, and a sealing structure is provided between the main pipeline 510 and the stabilizing chamber 800 to prevent leakage of the cleaning medium. The side wall of a section of the main pipeline 510 located in the stabilizing chamber 800 is processed with a plurality of vents 511, and the cleaning medium enters the main pipeline 510 from the stabilizing chamber 800 through the vents 511, and then enters the first pipeline 520, the second pipeline 530 and the third pipeline 540 and is discharged from the air outlet to clean the inside of the powder collector 300.

[0043] The top of the main pipe 510 is connected to the rotating shaft of the motor 900 to drive the cleaning pipe assembly 500 to rotate, so as to clean the inner wall side of the powder collector 300 and the filter screen 700.

[0044] Preferably, Figure 4 As shown, the first pipe 520 and the second pipe 530 are arranged in pairs along the normal direction of the powder collector 300, and each pair includes a first pipe 520 and a second pipe 530. Multiple pairs of the first pipe 520 and the second pipe 530 are evenly arranged along the circumference of the powder collector 300, and the angles between each pair are the same on the bottom surface projection, so as to improve the stability of the cleaning pipe set 500 during rotation. Multiple third pipes 540 are evenly arranged along the circumference of the powder collector 300, and the angles between each third pipe 540 are the same on the bottom surface projection, so as to improve the stability of the cleaning pipe set 500 during rotation.

[0045] Preferably, Figure 4 The first pipe 520 and the third pipe 540 are connected to the main pipe 510 through at least two connecting pipes to improve the stability of the connection. The bottom of the second pipe 530 is connected to the main pipe 510 through a connecting pipe to facilitate passing through the bottom of the filter 700 to realize the rotation function.

[0046] Preferably, the main pipeline 510 is divided into an upper pipeline 512 and a lower pipeline 513 for easy installation. The upper pipeline 512 and the lower pipeline 513 are connected by a pipe joint 550, and the connecting position of the pipe joint 550 is set in the negative pressure chamber 600 for easy assembly. The first pipeline 520, the second pipeline 530 and the third pipeline 540 are all connected to the lower pipeline 513, and the vent hole 511 is set in the upper pipeline 512. During assembly, the lower pipeline 513 is inserted upward from the bottom of the powder collector 300, so that the upper section of the lower pipeline 513 passes through the bottom surface of the powder collector 300 and the bottom surface of the negative pressure chamber 600.

[0047] Preferably, a detachable sealing cover is provided at the top of the negative pressure chamber 600, so that the sealing cover of the negative pressure chamber 600 can be opened during assembly, so that the lower pipe 513 can be inserted upward into the negative pressure chamber 600, and then connected to the upper pipe 512 through the pipe joint 550 in the negative pressure chamber 600. Compared with connecting the lower pipe 513 and the upper pipe 512 in the powder collector 300, it is more convenient to connect in the negative pressure chamber 600, because the negative pressure chamber 600 is located at the upper end of the device and is provided with a detachable sealing cover, and the structure in the negative pressure chamber 600 is simpler, and a flange 5121 is provided at the top of the upper pipe 512, which is connected to the main shaft of the motor 900 through the connecting flange to improve the stability of the connection. Because the flange 5121 is provided, the main pipe 510 cannot be designed as a whole-section structure. For the convenience of assembly, the main pipe 510 can only be designed as a two-section structure of the upper pipe 512 and the lower pipe 513.

[0048] Preferably, Figure 3 , Figure 4 As shown, the plenum chamber 800 is a cylindrical structure as a whole, with a cylindrical cavity inside, and the vents 511 are evenly distributed along the circumference of the main pipe 510, so that the cleaning medium can evenly enter the main pipe 510 from all sides of the main pipe 510, ensuring the pressure stability of various places inside the plenum chamber 800, so that the pressure of the cleaning medium sprayed out of the air outlet is more stable, which is beneficial to ensure the cleaning effect of various places of the powder collector 300 and the filter 700. The main pipe 510 coaxially passes through the upper and lower end surfaces of the plenum chamber 800, and at least two sealing rings 560 are respectively provided between the outer wall of the main pipe 510 and the inner wall of the plenum chamber 800 that contacts the upper and lower ends, so as to ensure the sealing between the main pipe 510 and the plenum chamber 800 when rotating, and prevent the leakage of the cleaning medium.

[0049] Preferably, Figure 3 and Figure 5 As shown, a fixed retaining ring 570 is provided above the connection between the outer periphery of the main pipeline 510 and the plenum chamber 800. The retaining ring 570 is installed on the main pipeline 510 by welding, or a structure formed by processing with the upper pipeline 512 is adopted. A sealing ring 580 is provided between the retaining ring 570 and the upper end surface of the plenum chamber 800 to achieve the purpose of sealing the upper end surface of the plenum chamber 800. A pressure ring 590 is connected by threads below the connection between the outer periphery of the main pipeline 510 and the plenum chamber 800, which is convenient for the maintenance and disassembly of the plenum chamber 800. Because a flange 5121 is provided at the top of the upper pipeline 512, the plenum chamber 800 can only be conveniently penetrated from the bottom, so the pressure ring 590 is designed as a detachable structure, instead of the retaining ring 570 being designed as a detachable structure. Similarly, a sealing ring 580 is also provided between the pressure ring 590 and the lower end surface of the plenum chamber 800 to achieve the purpose of sealing the lower end surface of the plenum chamber 800. Annular grooves are machined on the end surfaces at both ends of the pressure stabilizing chamber 800 corresponding to the sealing rings 580 for fixing the sealing rings 580 to prevent the sealing rings 580 from shifting when the cleaning assembly 500 rotates.

[0050] Preferably, the cleaning medium is water or steam. When water is used as the cleaning medium, the water needs to be pressurized to increase the pressure of the water when it is sprayed out from the air outlet, thereby improving the cleaning effect of the powder collector 300 and the filter 700. When steam is used, the inside of the powder collector 300 and the filter 700 can also be sterilized by high temperature.

[0051] The above description is only a preferred embodiment of the present invention, and is not intended to be the only one or to limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A medicinal powder production device with a cleaning function, comprising: A feeding mechanism (100), a jet mill (200) and a powder collector (300), characterized in that the upper section of the powder collector (300) is a cylindrical structure, the lower section is a conical structure, a storage tank (400) is provided at the bottom, and a cleaning pipe group (500) is provided inside the powder collector (300); A negative pressure chamber (600) is provided on the top of the powder collector (300); the negative pressure chamber (600) and the powder collector (300) are connected via a filter (700); the filter (700) is used to isolate the medicine powder and allow air to pass smoothly into the negative pressure chamber (600); the filter (700) extends vertically downward into the interior of the powder collector (300); a plurality of the filter (700) are arranged in a ring structure on the powder collector (300) in a projection toward the bottom surface; The cleaning pipe group (500) is provided with a main pipe (510) coaxial with the powder collector (300); the cleaning pipe group (500) is provided with a first pipe (520) and a second pipe (530) in the vertical direction at the upper section corresponding to the powder collector (300); the first pipe (520) and the second pipe (530) are both connected to the main pipe (510); in the projection of the bottom surface, the first pipe (520) is located inside the annular structure formed by the filter screen (700); the first pipe (520) has an air outlet in the vertical direction on one side facing the filter screen (700); the second pipe (530) is provided with an air outlet in the vertical direction; ) is located outside the annular structure formed by the filter screen (700), and the second pipe (530) has air outlets in the vertical direction on one side facing the filter screen (700) and on one side facing the inner wall of the powder collector (300); the cleaning pipe group (500) is provided with a third pipe (540) at an angle corresponding to the lower section of the powder collector (300), the third pipe (540) is parallel to the side wall of the conical structure of the lower section of the powder collector (300), the third pipe (540) is connected to the main pipe (510), and the third pipe (540) has air outlets on one side facing the inner wall of the powder collector (300); The main pipeline (510) is divided into an upper pipeline (512) and a lower pipeline (513); the upper pipeline (512) and the lower pipeline (513) are connected by a pipe joint (550); the communication position of the pipe joint (550) is arranged in the negative pressure chamber (600); the first pipeline (520), the second pipeline (530) and the third pipeline (540) are all connected to the lower pipeline (513); and the vent hole (511) is arranged in the upper pipeline (512); A stabilizing chamber (800) is provided inside the negative pressure chamber (600). The stabilizing chamber (800) has a hollow structure inside and is connected to the source of the cleaning medium through a connecting pipe (810). The upper section of the main pipeline (510) passes through the stabilizing chamber (800) upwards. A sealing structure is provided between the main pipeline (510) and the stabilizing chamber (800). A plurality of vents (511) are processed on the side wall of a section of the main pipeline (510) located inside the stabilizing chamber (800). The cleaning medium enters the main pipeline (510) from the stabilizing chamber (800) through the vents (511). The first pipe (520) and the second pipe (530) are arranged in pairs along the normal direction of the powder collector (300), each pair comprising a first pipe (520) and a second pipe (530), and a plurality of pairs of the first pipe (520) and the second pipe (530) are evenly arranged along the circumference of the powder collector (300); The top of the main pipe (510) is connected to the rotating shaft of the motor (900) for driving the cleaning pipe assembly (500) to rotate.

2. The medicinal powder production device with a cleaning function according to claim 1, characterized in that: A plurality of third pipes (540) are evenly arranged along the circumference of the powder collector (300), and the angles between each of the third pipes (540) are the same in projection on the bottom surface.

3. The medicinal powder production device with a cleaning function according to claim 1, characterized in that: The first pipeline (520) and the third pipeline (540) are both connected to the main pipeline (510) via at least two connecting pipes, and the bottom of the second pipeline (530) is connected to the main pipeline (510) via a connecting pipe.

4. The medicinal powder production device with a cleaning function according to claim 1, characterized in that: A detachable sealing cover is provided on the top of the negative pressure chamber (600), and a flange (5121) is provided on the top of the upper pipe (512), which is connected to the main shaft of the motor (900) via the connecting flange.

5. The medicinal powder production device with a cleaning function according to claim 1, characterized in that: The pressure stabilizing chamber (800) is an overall cylindrical structure, having a cylindrical cavity inside, and the vent holes (511) are evenly distributed along the circumference of the main pipeline (510).

6. The medicinal powder production device with a cleaning function according to claim 1, characterized in that: The main pipeline (510) passes through the upper and lower end surfaces of the stabilizing chamber (800), and at least two sealing rings (560) are respectively provided between the outer wall of the main pipeline (510) and the inner wall of the stabilizing chamber (800) where the upper and lower ends contact.

7. The medicinal powder production device with a cleaning function according to claim 1, characterized in that: A fixed retaining ring (570) is provided above the connection between the outer periphery of the main pipeline (510) and the stabilizing chamber (800), and a sealing ring (580) is provided between the retaining ring (570) and the upper end surface of the stabilizing chamber (800); a pressure ring (590) is connected to the lower part of the connection between the outer periphery of the main pipeline (510) and the stabilizing chamber (800) through a thread, and a sealing ring (580) is provided between the pressure ring (590) and the lower end surface of the stabilizing chamber (800).

8. The medicinal powder production device with a cleaning function according to claim 1, characterized in that: The cleaning medium is water or steam.

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