Traditional Chinese medicine extraction centrifugal device

Abstract

The invention discloses a traditional Chinese medicine extraction centrifugal device, and relates to the technical field of centrifugal devices.The traditional Chinese medicine extraction centrifugal device comprises a centrifugal frame and a centrifugal barrel, the centrifugal barrel is rotationally arranged at the center of the interior of the centrifugal frame, a sealing cover is arranged at the upper end of the centrifugal barrel, and the centrifugal barrel comprises a base, an inner barrel, an outer barrel and a collecting barrel; the inner cylinder, the outer cylinder and the collecting cylinder are sequentially sleeved layer by layer from inside to outside, the sealing cover is located at the upper end of the inner cylinder, the base is located at the lower ends of the inner cylinder and the outer cylinder, the lower end of the base is driven by a motor to rotate, a plurality of limiting rings are arranged on the inner wall of the inner cylinder at intervals, and a first filter screen is laid on the inner wall of the inner cylinder. Through cooperation of the inner cylinder and the outer cylinder, multi-stage filtration during centrifugation can be achieved, during cleaning, only by contracting the first air cylinder, the sealing plate can be rotationally opened, the first filter screen and the second filter screen can be straightened at the same time, dehydrated precipitates on the first filter screen and the second filter screen can be shaken off, rapid cleaning is achieved, and the centrifugation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal devices, in particular to a centrifugal device for extracting traditional Chinese medicine. Background Art

[0002] The separation and extraction of traditional Chinese medicine is a necessary step in the production process of traditional Chinese medicine. It is to separate and extract the mixed stock solution of processed traditional Chinese medicine and liquid medicine to obtain liquid medicine without drug residue. The commonly used separation and extraction methods include centrifugation, plate and frame filtration, clarification agent method, alcohol precipitation method, resin adsorption method, etc. Among them, centrifugation is a simple and effective separation and extraction method;

[0003] For example, a Chinese medicine extraction centrifugal device as disclosed in "CN116984127B" includes a tank body, an automatic feeding mechanism for feeding and transporting medicinal materials and medicinal residues, a centrifugal mechanism for separating Chinese medicine liquid and medicinal residues, and an extraction mechanism for separately extracting the Chinese medicine liquid and medicinal residues. The centrifugal mechanism is installed inside the tank body, and the centrifugal mechanism can rotate inside the tank body. The automatic feeding mechanism and the extraction mechanism are movably installed on the centrifugal mechanism. A Chinese medicine extraction centrifugal device disclosed in the present invention can separately extract the Chinese medicine liquid and the mixture of the liquid and medicinal residues in the centrifugal mechanism during the rotation of the centrifugal mechanism, thereby realizing the separation and extraction of the Chinese medicine liquid and the medicinal residues with a smaller volume. The automatic feeding mechanism is convenient for feeding raw materials, and can automatically transport the Chinese medicine materials and the medicinal residues with a larger volume when separating and extracting the mixed stock of the Chinese medicine materials and the liquid.

[0004] However, in the prior art, after centrifugation, the residue will be firmly attached to the inner wall of the centrifuge cylinder under the action of centrifugation and is difficult to remove. If it is scraped by a scraper, some of it will remain on the inner wall of the centrifuge cylinder or even in the holes of the centrifuge cylinder. Or manual cleaning and the like require the centrifuge cylinder to be disassembled and cleaned, which is complicated to operate and inconvenient to use, and is not conducive to efficient centrifugation of traditional Chinese medicine extraction. Summary of the invention

[0005] In view of the above existing problems, the present invention is proposed.

[0006] The purpose of the present invention is to solve the problem that the slag removal operation is relatively inconvenient in the prior art.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] On the one hand, the present invention provides a Chinese medicine extraction centrifuge device, which includes a centrifugal frame and a centrifugal cylinder, the centrifugal cylinder is rotatably arranged at the center position inside the centrifugal frame, a sealing cover is provided at the upper end of the centrifugal cylinder, the centrifugal cylinder includes a base, an inner cylinder, an outer cylinder and a collecting cylinder, the inner cylinder, the outer cylinder and the collecting cylinder are sequentially sleeved from the inside to the outside, the sealing cover is located at the upper end of the inner cylinder, the base is located at the lower ends of the inner cylinder and the outer cylinder, the lower end of the base is driven to rotate by a motor, a plurality of limit rings are arranged at intervals on the inner wall of the inner cylinder, a first filter screen is laid on the inner wall of the inner cylinder, the upper and lower ends of the first filter screen are assembled and connected with the upper and lower ends of the inner cylinder and a pull ring is provided at the lower end, a limit block assembled and connected with the first filter screen is provided on the limit ring, a sealing plate is rotatably provided on the base, a second filter screen is provided on the inner wall of the outer cylinder, and the upper part of the sealing plate is respectively assembled and connected with the pull ring and the second filter screen through a first cylinder, a liquid outlet groove is provided at the lower end of the collecting cylinder, and a feeding pipe is detachably connected on the sealing cover.

[0009] Furthermore, the side walls of the inner cylinder and the outer cylinder are respectively provided with a first leakage hole and a second leakage hole, the diameter of the first leakage hole is larger than the diameter of the second leakage hole, and the diameter of the first filter hole is larger than the diameter of the second filter hole. Through the cooperation of the first leakage hole and the second leakage hole, the liquid can be doubly centrifuged during the rotating centrifugation process, so that the separation between the centrifuged liquid and the solid particles is more effective.

[0010] Furthermore, a plurality of the limiting rings are evenly arranged on the inner wall of the inner cylinder, the center of the limiting ring is arranged in a protruding structure, and the upper and lower sides are tightly fitted with the inner wall of the inner cylinder, and a plurality of the limiting blocks are evenly arranged on the limiting ring.

[0011] Furthermore, a limiting groove is provided on the limiting ring, and a waterproof elastic sheet is provided at the edge of the limiting groove. The limiting groove is assembled and connected with the waterproof elastic sheet through a telescopic shaft. A first spring is provided between one end of the telescopic shaft and the limiting groove, and one end of the telescopic shaft is rotatably connected to the limiting groove at the protruding position of the limiting ring. The limiting block is located on the outside of the waterproof elastic sheet at the telescopic shaft, and the limiting block is assembled and connected with the first filter screen. In the initial state, the first spring pulls the telescopic shaft to be in the limiting groove, that is, above the limiting ring. When unloading, the first filter screen is pulled and flattened, and the dehydrated particles attached to the first filter screen are separated from the filter screen and slide down due to the friction with the limiting ring. During the flattening process of the filter screen, the telescopic shaft is pulled to rotate with the limiting groove, and the first spring is expanded and stretched. When the first cylinder is extended, the first spring drives the telescopic shaft to reset, and the first filter screen is re-fitted with the inner wall of the inner cylinder. The first spring, telescopic shaft and limiting groove provided therein can be protected by the provided waterproof elastic sheet.

[0012] Furthermore, a fixing frame is provided at the center position below the inner cylinder, two sealing plates are provided and symmetrically rotated on both sides of the fixing frame, and a sealing layer is provided at the edge of the sealing plate to be sealed and slidably arranged with the inner wall of the inner cylinder. The sealing layer ensures the sealing of the inner cylinder when loading liquid in the initial state.

[0013] Furthermore, a discharge chute is provided at the center position above the base, and the center position of the discharge chute is assembled and connected to the fixed frame through a center frame. The first cylinder is provided with two hinged arrangements on both sides of the center frame, and the output ends are hinged arrangements under the two sealing plates, respectively. By driving the first cylinder, the two sealing plates are driven to rotate and open, thereby facilitating discharge.

[0014] Furthermore, the upper and lower ends of the second filter are respectively assembled and connected with the upper and lower ends of the inner wall of the outer cylinder, the inner wall of the outer cylinder is provided with an inner ring with the same structure as the limiting ring, the installation structure of the second filter and the inner ring is the same as the installation structure of the first filter and the limiting ring, a pull strip is provided below the second filter, and the top of the sealing plate is hinged with the pull strip and the pull ring through the telescopic strip, and the telescopic strip is provided with multiple, and an outer plate is provided below the sealing plate, the outer plate is sealingly assembled and connected with the lower end of the outer cylinder, and a group of lower ends of the telescopic strips are hinged to the outer plate, and when the sealing plate is opened, the telescopic strips pull the pull strips and the pull rings respectively to drive the first filter and the second filter to flatten.

[0015] Furthermore, a slag trough and a liquid collecting trough are provided at the lower part of the centrifugal frame, the slag trough and the liquid collecting trough are respectively located directly below the discharge end of the discharge trough, the liquid collecting trough is located directly below the liquid discharge trough, and the slag trough and the liquid collecting trough are respectively connected to the outside of the centrifugal frame for discharging.

[0016] Furthermore, a sealing ring is provided at the lower part of the collecting barrel through the second cylinder, and a discharge pipe is connected to the lower end of the collecting barrel. The inner wall diameter of the discharge pipe is larger than the inner wall diameter of the collecting barrel. The lower end of the second cylinder is assembled and connected to the lower end of the discharge pipe. The sealing ring is driven to move downward by contracting the second cylinder until the lower end of the sealing ring is separated from the inner wall of the collecting barrel and is in the discharge pipe. At this time, the liquid in the collecting barrel can be directly discharged through the discharge pipe.

[0017] Furthermore, the feeding pipe is arranged at the center of the sealing cover, and the lower end of the feeding pipe is evenly connected with multiple nozzles. When feeding, the liquid medicine to be fed is evenly introduced from the feeding pipe and evenly sprayed into the inner tube through the multiple nozzles to achieve stable feeding.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention can realize multi-stage filtration during centrifugation through the cooperation of the inner cylinder and the outer cylinder. When cleaning, the sealing plate can be rotated and opened at the same time, and the first filter screen and the second filter screen can be straightened only by contracting the first cylinder, so that the dehydrated sediment on the first filter screen and the second filter screen can be shaken off, thereby realizing rapid cleaning and improving centrifugal efficiency.

[0020] 2. The present invention provides a feeding pipe to continuously feed materials into the centrifuge cylinder, ensuring that the centrifuge cylinder is always filled with liquid to be centrifuged, thereby achieving continuous centrifugation.

[0021] 3. The present invention drives the second cylinder to contract, thereby driving the sealing ring to move downward until the lower end of the sealing ring is separated from the inner wall of the collecting tube and is located in the discharge pipe. At this time, the liquid in the collecting tube can be directly discharged through the discharge pipe.

[0022] 4. The limiting rings provided in the present invention can ensure that during the unloading process, the filter screen needs to pass through layers of limiting rings when it is unfolded, and the filter screen and the slag are separated by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 A three-dimensional diagram of a centrifugal device for extracting traditional Chinese medicine provided by the present invention;

[0025] Figure 2 A schematic diagram of a centrifuge cylinder of a traditional Chinese medicine extraction centrifuge device provided by the present invention;

[0026] Figure 3 A bottom view of a centrifuge cylinder of a traditional Chinese medicine extraction centrifuge provided by the present invention;

[0027] Figure 4 A schematic diagram of the internal structure of a centrifuge cylinder of a traditional Chinese medicine extraction centrifuge provided by the present invention;

[0028] Figure 5 A schematic diagram of the internal structure of the inner cylinder and the outer cylinder of a centrifugal device for extracting traditional Chinese medicine provided by the present invention;

[0029] Figure 6 A schematic diagram of the positions of the limiting ring and the limiting groove of a centrifugal device for extracting traditional Chinese medicine provided by the present invention;

[0030] Figure 7 The present invention provides a schematic diagram of the structure of a liquid outlet tank of a traditional Chinese medicine extraction centrifugal device.

[0031] Legend:

[0032] 1. Centrifugal rack; 2. Centrifugal cylinder; 3. Sealing cover; 411. Base; 412. Inner cylinder; 413. Outer cylinder; 414. Collecting cylinder; 5. Motor; 6. Limiting ring; 7. First filter screen; 8. Pull ring; 9. Limiting block; 10. Sealing plate; 11. Second filter screen; 12. First cylinder; 13. Liquid outlet tank; 14. Feeding pipe; 151. First leak hole; 152. Second leak hole; 161. Limiting ring Position slot; 162, waterproof elastic sheet; 163, telescopic shaft; 164, first spring; 171, fixed frame; 172, sealing layer; 181, discharge chute; 182, center frame; 19, inner ring; 201, pull bar; 202, telescopic bar; 203, outer plate; 211, slag trough; 212, liquid collecting trough; 221, second cylinder; 222, sealing ring; 223, discharge pipe; 23, nozzle. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, as referred to herein, "one embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that can be included in at least one implementation of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] See also Figure 1-Figure 7The present invention provides a technical solution: a Chinese medicine extraction centrifugal device, comprising a centrifugal frame 1 and a centrifugal cylinder 2, the centrifugal cylinder 2 is rotatably arranged at the center of the centrifugal frame 1, a sealing cover 3 is arranged at the upper end of the centrifugal cylinder 2, the centrifugal cylinder 2 comprises a base 411, an inner cylinder 412, an outer cylinder 413 and a collecting cylinder 414, the inner cylinder 412, the outer cylinder 413 and the collecting cylinder 414 are sequentially arranged from the inside to the outside, the sealing cover 3 is located at the upper end of the inner cylinder 412, the base 411 is located at the lower ends of the inner cylinder 412 and the outer cylinder 413, the lower end of the base 411 is driven to rotate by a motor 5, and the inner cylinder 412, the outer cylinder 413 and the collecting cylinder 414 are sequentially arranged from the inside to the outside. A plurality of limit rings 6 are arranged at intervals on the inner wall of the inner cylinder 412, a first filter screen 7 is laid on the inner wall of the inner cylinder 412, the upper and lower ends of the first filter screen 7 are assembled and connected with the upper and lower ends of the inner cylinder 412 and a pull ring 8 is arranged at the lower end, a limit block 9 assembled and connected with the first filter screen 7 is arranged on the limit ring 6, a sealing plate 10 is rotatably arranged on the base 411, a second filter screen 11 is arranged on the inner wall of the outer cylinder 413, the upper part of the sealing plate 10 is assembled and connected with the pull ring 8 and the second filter screen 11 respectively through the first cylinder 12, a liquid outlet trough 13 is arranged at the lower end of the collecting cylinder 414, and a feeding pipe 14 is detachably connected to the sealing cover 3.

[0037] like Figure 1-Figure 7 As shown, the side walls of the inner cylinder 412 and the outer cylinder 413 are respectively provided with a first leakage hole 151 and a second leakage hole 152, the diameter of the first leakage hole 151 is larger than the diameter of the second leakage hole 152, the hole diameter of the first filter screen 7 is larger than the hole diameter of the second filter screen 11, and through the cooperation of the first leakage hole 151 and the second leakage hole 152, the liquid can be doubly centrifuged during the rotating centrifugation process, so that the separation between the centrifuged liquid and the solid particles is more effective.

[0038] like Figure 1-Figure 7 As shown, multiple limit rings 6 are evenly arranged on the inner wall of the inner cylinder 412, the center of the limit ring 6 is arranged in a protruding structure, and the upper and lower sides are tightly fitted with the inner wall of the inner cylinder 412, and multiple limit blocks 9 are evenly arranged on the limit ring 6.

[0039] like Figure 1-Figure 7As shown, a limiting groove 161 is provided on the limiting ring 6, and a waterproof elastic sheet 162 is provided at the edge of the limiting groove 161. The limiting groove 161 is assembled and connected with the waterproof elastic sheet 162 through a telescopic shaft 163. A first spring 164 is provided between one end of the telescopic shaft 163 and the limiting groove 161. One end of the telescopic shaft 163 is rotatably connected to the limiting groove 161 at the protruding position of the limiting ring 6. The limiting block 9 is located on the outer side of the waterproof elastic sheet 162 at the telescopic shaft 163. The limiting block 9 is assembled and connected with the first filter screen 7. In the initial state, the first spring 164 pulls the telescopic shaft 163 to be in the limiting groove 161, that is, Above the limiting ring 6, when unloading, the first filter screen 7 is pulled and flattened, and the dehydrated particles attached to the first filter screen 7 are separated from the filter screen and slide downward due to the friction with the limiting ring 6. During the flattening process of the filter screen, the telescopic shaft 163 is pulled and rotated with the limiting groove 161, and the first spring 164 is stretched. When the first cylinder 12 is extended, the first spring 164 drives the telescopic shaft 163 to reset, and the first filter screen 7 is re-fitted with the inner wall of the inner cylinder 412. The waterproof elastic sheet 162 can protect the first spring 164, telescopic shaft 163 and limiting groove 161 arranged therein.

[0040] like Figure 1-Figure 7 As shown, a fixing frame 171 is provided at the center position below the inner cylinder 412, two sealing plates 10 are provided and symmetrically rotated on both sides of the fixing frame 171, and a sealing layer 172 is provided at the edge of the sealing plate 10 to be sealed and slidably arranged with the inner wall of the inner cylinder 412. The sealing layer 172 is provided to ensure the sealing of the inner cylinder 412 when loading liquid in the initial state.

[0041] like Figure 1-Figure 7 As shown, a discharge chute 181 is provided at the center position above the base 411, and the discharge chute 181 is assembled and connected to the fixed frame 171 through a center frame 182 at the center position. The first cylinder 12 is provided with two hingedly arranged on both sides of the center frame 182, and the output ends are respectively hingedly arranged at the bottom of the two sealing plates 10. By driving the first cylinder 12, the two sealing plates 10 are driven to rotate and open, which is convenient for unloading.

[0042] like Figure 1-Figure 7As shown, the upper and lower ends of the second filter screen 11 are respectively assembled and connected with the upper and lower ends of the inner wall of the outer cylinder 413, the inner wall of the outer cylinder 413 is provided with an inner ring 19 with the same structure as the limit ring 6, the installation structure of the second filter screen 11 and the inner ring 19 is the same as the installation structure of the first filter screen 7 and the limit ring 6, a pull strip 201 is provided below the second filter screen 11, and the top of the sealing plate 10 is hinged to the pull strip 201 and the pull ring 8 through a telescopic strip 202, and there are multiple telescopic strips 202. An outer plate 203 is provided below the sealing plate 10, and the outer plate 203 is sealingly assembled and connected to the lower end of the outer cylinder 413. The lower end of a group of telescopic strips 202 is hinged to the outer plate 203. When the sealing plate 10 is opened, the telescopic strip 202 pulls the pull strip 201 and the pull ring 8 respectively, driving the first filter screen 7 and the second filter screen 11 to flatten.

[0043] like Figure 1-Figure 7 As shown, a slag trough 211 and a liquid collecting trough 212 are provided at the lower part of the centrifugal frame 1. The slag trough 211 and the liquid collecting trough 212 are respectively located directly below the discharge end of the discharge trough 181, and the liquid collecting trough 212 is located directly below the liquid discharge trough 13. The slag trough 211 and the liquid collecting trough 212 are respectively connected to the outside of the centrifugal frame 1 for discharging.

[0044] like Figure 1-Figure 7 As shown, a sealing ring 222 is provided at the lower part of the collecting barrel 414 through the second cylinder 221, and a discharge pipe 223 is connected to the lower end of the collecting barrel 414. The inner wall diameter of the discharge pipe 223 is larger than the inner wall diameter of the collecting barrel 414. The lower end of the second cylinder 221 is assembled and connected with the lower end of the discharge pipe 223. By driving the second cylinder 221 to contract, the sealing ring 222 is driven to move downward until the lower end of the sealing ring 222 is separated from the inner wall of the collecting barrel 414 and is in the discharge pipe 223. At this time, the liquid in the collecting barrel 414 can be directly discharged through the discharge pipe 223.

[0045] like Figure 1-Figure 7 As shown, the feeding pipe 14 is arranged at the center of the sealing cover 3, and a plurality of nozzles 23 are evenly connected to the lower end of the feeding pipe 14. When feeding, the liquid medicine to be fed is evenly introduced from the feeding pipe 14 and evenly sprayed into the inner tube 412 through the plurality of nozzles 23 to achieve stable feeding.

[0046] Working principle: When performing centrifugal operation, first pour a proper amount of liquid into the inner cylinder 412 through the feeding pipe 14. The liquid occupies 50%-80% of the volume of the inner cylinder 412, and then drives the motor 5 to drive the centrifugal cylinder 2 to rotate as a whole. The liquid in the inner cylinder 412 is evenly attached to the inner wall of the inner cylinder 412 under the action of centrifugation. The liquid passes through the first filter screen 7 and the side wall of the inner cylinder 412 to enter the outer cylinder 413, and the large particles remain on the inner wall of the inner cylinder 412. The liquid entering the outer cylinder 413 is centrifuged again, and the liquid filtered by the second filter screen 11 passes through the outer cylinder 413 and enters the collecting cylinder 414, while the small particles are left on the inner wall of the outer cylinder 413. During the centrifugal process, the feeding pipe 14 continuously feeds the inner cylinder 412 to ensure that the amount of liquid in the inner cylinder 412 remains balanced. After a period of time, a large number of particles block the first filter screen 7 and the second filter screen 11. The holes on the inner cylinder 412 need to be cleaned. At this time, it is necessary to stop feeding first, and the centrifugal cylinder 2 continues to rotate until the liquid inside the centrifugal cylinder 2 is completely centrifuged to achieve solid-liquid separation. At this time, the driving of the centrifugal cylinder 2 is stopped, and the first cylinder 12 is driven to shrink. During the shrinkage process, the two sealing plates 10 are pulled to rotate. At this time, a slag discharge port is formed between the base 411 and the bottom of the inner cylinder 412, and during the rapid contraction of the first cylinder 12, the first filter screen 7 that was originally tightly attached to the limit ring 6 and the inner wall of the inner cylinder 412 is instantly straightened, and the second filter screen 11 is also straightened. The agglomerated slag is shaken off and separated from the first filter screen 7 and the second filter screen 11, and falls downward from the slag discharge port to discharge the slag, and the separated liquid is directly discharged from the lower end of the collecting cylinder 414, so that the slag discharge is rapid. After the slag discharge is completed, the above steps can be repeated to continue the centrifugal operation, which greatly improves the centrifugal efficiency.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A Chinese medicine extraction centrifugal device, comprising a centrifugal frame (1) and a centrifugal cylinder (2), wherein the centrifugal cylinder (2) is rotatably arranged at the center position inside the centrifugal frame (1), and a sealing cover (3) is arranged at the upper end of the centrifugal cylinder (2), characterized in that: The centrifugal cylinder (2) comprises a base (411), an inner cylinder (412), an outer cylinder (413) and a collecting cylinder (414); the inner cylinder (412), the outer cylinder (413) and the collecting cylinder (414) are sequentially arranged in layers from the inside to the outside; the sealing cover (3) is located at the upper end of the inner cylinder (412); the base (411) is located at the lower ends of the inner cylinder (412) and the outer cylinder (413); the lower end of the base (411) is driven to rotate by a motor (5); a plurality of limiting rings (6) are arranged at intervals on the inner wall of the inner cylinder (412); a first filter screen (7) is laid on the inner wall of the inner cylinder (412); and the first filter screen (7) is arranged on the inner wall of the inner cylinder (412). The upper and lower ends of a filter screen (7) are assembled and connected with the upper and lower ends of an inner tube (412), and a pull ring (8) is provided at the lower end; a limit block (9) assembled and connected with the first filter screen (7) is provided on the limit ring (6); a sealing plate (10) is rotatably provided on the base (411); a second filter screen (11) is provided on the inner wall of the outer tube (413); the upper part of the sealing plate (10) is assembled and connected with the pull ring (8) and the second filter screen (11) respectively through a first cylinder (12); a liquid outlet groove (13) is provided at the lower end of the collecting tube (414); and a feeding pipe (14) is detachably connected to the sealing cover (3).

2. A Chinese medicine extraction centrifugal device according to claim 1, characterized in that: The side walls of the inner cylinder (412) and the outer cylinder (413) are respectively provided with a first leakage hole (151) and a second leakage hole (152); the diameter of the first leakage hole (151) is larger than the diameter of the second leakage hole (152); and the hole diameter of the first filter screen (7) is larger than the hole diameter of the second filter screen (11).

3. A Chinese medicine extraction centrifugal device according to claim 2, characterized in that: A plurality of the limit rings (6) are evenly arranged on the inner wall of the inner cylinder (412); the center of the limit ring (6) is arranged in a protruding structure, and the upper and lower sides are tightly fitted with the inner wall of the inner cylinder (412); and a plurality of the limit blocks (9) are evenly arranged on the limit ring (6).

4. A Chinese medicine extraction centrifugal device according to claim 3, characterized in that: The limiting ring (6) is provided with a limiting groove (161), and a waterproof elastic sheet (162) is provided at the edge of the limiting groove (161). The limiting groove (161) is assembled and connected with the waterproof elastic sheet (162) through a telescopic shaft (163). A first spring (164) is provided between one end of the telescopic shaft (163) and the limiting groove (161). One end of the telescopic shaft (163) is rotatably connected with the limiting groove (161) at a protruding position of the limiting ring (6). The limiting block (9) is located outside the waterproof elastic sheet (162) at the telescopic shaft (163), and the limiting block (9) is assembled and connected with the first filter (7).

5. A Chinese medicine extraction centrifugal device according to claim 4, characterized in that: A fixing frame (171) is provided at the center position below the inner cylinder (412), two sealing plates (10) are provided and are symmetrically rotated and arranged on both sides of the fixing frame (171), and a sealing layer (172) is provided at the edge of the sealing plate (10) and is sealed and slidably arranged with the inner wall of the inner cylinder (412).

6. A centrifugal device for extracting traditional Chinese medicine according to claim 5, characterized in that: A discharge chute (181) is provided at the center position above the base (411), and the discharge chute (181) is assembled and connected to the fixed frame (171) at the center position through a center frame (182). The first cylinder (12) is provided with two hingedly arranged on both sides of the center frame (182), and the output ends are respectively hingedly arranged below the two sealing plates (10).

7. A centrifugal device for extracting traditional Chinese medicine according to claim 6, characterized in that: The upper and lower ends of the second filter screen (11) are respectively assembled and connected with the upper and lower ends of the inner wall of the outer cylinder (413); the inner wall of the outer cylinder (413) is provided with an inner ring (19) having the same structure as the limiting ring (6); the installation structure of the second filter screen (11) and the inner ring (19) is the same as the installation structure of the first filter screen (7) and the limiting ring (6); a pull strip (201) is provided below the second filter screen (11); the sealing plate (10) is hingedly connected to the pull strip (201) and the pull ring (8) through a telescopic strip (202) above, and a plurality of telescopic strips (202) are provided; an outer plate (203) is provided below the sealing plate (10); the outer plate (203) is sealingly assembled and connected to the lower end of the outer cylinder (413); and a group of lower ends of the telescopic strips (202) are hingedly connected to the outer plate (203).

8. A centrifugal device for extracting traditional Chinese medicine according to claim 7, characterized in that: A slag trough (211) and a liquid collecting trough (212) are provided at the lower part of the centrifugal frame (1); the slag trough (211) and the liquid collecting trough (212) are respectively located directly below the discharge end of the discharge trough (181); the liquid collecting trough (212) is located directly below the liquid discharge trough (13); and the slag trough (211) and the liquid collecting trough (212) are respectively connected to the outside of the centrifugal frame (1).

9. A centrifugal device for extracting traditional Chinese medicine according to claim 8, characterized in that: A sealing ring (222) is provided at the lower part of the interior of the collecting cylinder (414) through a second cylinder (221); a discharge pipe (223) is provided at the lower end of the collecting cylinder (414); the inner wall diameter of the discharge pipe (223) is larger than the inner wall diameter of the collecting cylinder (414); and the lower end of the second cylinder (221) is assembled and connected to the lower end of the discharge pipe (223).

10. A centrifugal device for extracting traditional Chinese medicine according to claim 9, characterized in that: The feeding pipe (14) is arranged at the center of the sealing cover (3), and a plurality of nozzles (23) are evenly connected at the lower end of the feeding pipe (14).

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