A multi-stage precision filtering device for traditional Chinese medicine decoction pieces

Abstract

The utility model relates to traditional chinese medicine decoction piece processing technical field, concretely disclose a kind of multistage fine filter device of traditional chinese medicine decoction piece, including fixed cylinder, the inside coaxial of fixed cylinder is provided with the first rotating platform of circular truncated cone, the top of first rotating platform is fixedly connected with the initial filter cylinder of upper and lower two ends open, the lower portion of the outer wall of first rotating platform is connected with fine filter cylinder by flange;The bottom of first rotating platform is fixedly connected with the second rotating platform of circular truncated cone, the outer wall lower portion of second rotating platform is connected with ultrafiltration cylinder by flange, the bottom of second rotating platform is fixedly connected with rotating shaft, and rotating shaft bottom penetrates the bottom of fixed cylinder and extends to the lower portion of fixed cylinder by mechanical seal;The device is rotated centrifugation by multistage filter cylinder and realizes high -efficient fine filter, cooperates with automatic full area flushing, improves filtration efficiency and precision, simplifies maintenance and guarantees operating reliability.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine decoction piece processing technology, and specifically discloses a multi-stage fine filtration device for traditional Chinese medicine decoction pieces. Background Technology

[0002] In the production of Chinese herbal medicine slices, the filtration of the medicinal liquid is a key step in ensuring product quality. It is necessary to remove impurities (such as dregs and suspended solids) from the medicinal liquid while retaining the effective ingredients.

[0003] Traditional multi-stage filtration devices for Chinese herbal medicine decoction pieces generally suffer from the following technical bottlenecks: Most existing filtration equipment uses a fixed multi-stage filter structure for filtration. The medicine usually passes through the filter screen only by gravity or static pressure, resulting in slow filtration speed and easy clogging of the filter screen due to the accumulation of impurities. The filtration efficiency of the fixed filter screen is significantly reduced. In addition, the traditional multi-stage filter screen usually requires manual disassembly for cleaning, which is time-consuming, labor-intensive, and inconvenient to use. Therefore, these issues need to be improved. Utility Model Content

[0004] This utility model proposes a multi-stage fine filtration device for Chinese herbal medicine slices. The device achieves high-efficiency fine filtration through multi-stage filter cartridge rotation centrifugation, combined with automated full-area rinsing, which improves filtration efficiency and accuracy, simplifies maintenance and ensures operational reliability.

[0005] This utility model is implemented as follows: a multi-stage fine filtration device for Chinese herbal medicine slices includes a fixed cylinder, and a first rotating platform in the shape of a frustum is coaxially arranged inside the fixed cylinder. A primary filter cylinder with open upper and lower ends is fixedly connected to the top of the first rotating platform, and a fine filter cylinder is connected to the lower part of the outer wall of the first rotating platform through a flange.

[0006] The bottom of the first rotating platform is fixedly connected to a second rotating platform in the shape of a frustum. The outer wall of the second rotating platform is connected to an ultrafiltration cylinder via a flange. The bottom of the second rotating platform is fixedly connected to a rotating shaft. The bottom of the rotating shaft passes through the bottom of the fixed cylinder and extends to the bottom of the fixed cylinder through a mechanical seal.

[0007] The top of the fixed cylinder is threadedly connected to a top cover, and the top of the top cover is connected to a liquid inlet pipe. The liquid inlet pipe is opposite to the upper port of the primary filter cylinder, and a valve and a rotary joint are provided on the liquid inlet pipe.

[0008] Side plates are symmetrically arranged on the left and right sides of the fixed cylinder. A rotating rod is rotatably connected to the outer wall of the side plate through a bearing. The rotating rod is fixedly connected to the outer wall of the fixed cylinder. A second motor is fixedly installed on the outer wall of one of the side plates through a base. The output end of the second motor is fixedly connected to the corresponding rotating rod.

[0009] A rinsing mechanism is provided below the fixed cylinder.

[0010] As a preferred embodiment of the multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to this utility model, the rinsing mechanism includes a support plate fixed to the bottom of the two side plates, a grid plate is provided on the top of the support plate, and the grid plate is located between the two side plates; a second electric push rod is provided on the top of the grid plate, and a rinsing pipe is fixedly connected to the output end of the second electric push rod. The rinsing pipe is provided with multiple nozzles, and a water supply hose is connected to the outer wall of the rinsing pipe.

[0011] As a preferred embodiment of the multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to this utility model, a slide rail is fixedly installed on the top of the fence plate, and an inverted U-shaped slide plate is slidably connected to the top of the slide rail; the second electric push rod is fixed to the top of the slide plate; a first electric push rod is fixedly installed on the outer wall of one of the side plates, and the output end of the first electric push rod passes through the side plate and is fixedly connected to the slide plate.

[0012] As a preferred embodiment of the multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to this utility model, the rinsing mechanism further includes a collection box with an open top, the horizontal projection size of the collection box being larger than the horizontal projection size of the fence plate, and the bottom of the collection box being inclined; the outer wall of the collection box is connected to a slag discharge pipe with a valve.

[0013] As a preferred embodiment of the multi-stage fine filtration device for Chinese herbal medicine slices according to this utility model, a first gear is fixedly connected to the outer wall of the rotating shaft, and the first gear meshes with a second gear; a first motor is fixedly installed at the bottom of the fixed cylinder through a base, and the output end of the first motor is fixedly connected to the second gear.

[0014] As a preferred embodiment of the multi-stage filtration device for Chinese herbal medicine slices according to this utility model, a rotating ring is fixedly connected to the outer wall of the second rotating table, and an annular groove is provided on the inner wall of the fixed cylinder, and the rotating ring is slidably embedded in the groove.

[0015] As a preferred embodiment of the multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to this utility model, the side wall at the bottom of the fixed cylinder is connected to an outlet pipe with a valve.

[0016] The beneficial effects of this utility model are:

[0017] 1. By using a motor to drive the multi-stage filter cartridges connected in series on the same axis to rotate, centrifugal force is generated, which forces the medicine solution to pass through the primary filter cartridge, fine filter cartridge and ultrafiltration cartridge with the mesh size from coarse to fine in sequence from the inside to the outside, so as to achieve efficient and continuous fine filtration. At the same time, the centrifugal force effectively prevents the filter screen from clogging.

[0018] 2. The fixed cylinder is rotated 180 degrees by the second motor so that the filter cylinder opening faces downward, creating conditions for automatic rinsing. The electric push rod drives the slide plate and rinsing pipe to achieve precise positioning and movement of the rinsing head in the horizontal and vertical directions, ensuring that it can penetrate into the interior of different filter cylinders for comprehensive and efficient automatic rinsing, reducing manual intervention.

[0019] 3. The residue and wastewater after rinsing are collected and centralized by the lower fence and collection box, facilitating unified discharge and treatment. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is an overall structural diagram of a multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to this utility model.

[0022] Figure 2 This is a front sectional view of a multi-stage fine filtration device for Chinese herbal medicine slices according to the present invention.

[0023] Figure 3 This is a structural diagram of the fixing cylinder of this utility model.

[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0025] The markings in the diagram are as follows: 1. Fixed cylinder; 101. Liquid outlet pipe; 2. First rotating platform; 3. Primary filter cylinder; 4. Fine filter cylinder; 401. Second rotating platform; 402. Ultrafiltration cylinder; 403. Rotating shaft; 404. First gear; 405. Second gear; 406. First motor; 5. Rotating ring; 501. Slide groove; 6. Top cover; 601. Liquid inlet pipe; 7. Side plate; 701. Rotating rod; 702. Second motor; 8. Support plate; 801. Fence plate; 802. Slide rail; 803. Slide plate; 8031. First electric actuator; 804. Second electric actuator; 805. Rinsing pipe; 9. Collection box. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0027] Please see Figure 1-4A multi-stage fine filtration device for Chinese herbal medicine slices includes a fixed cylinder 1. A first rotating platform 2 in the shape of a frustum is coaxially arranged inside the fixed cylinder 1. A primary filter cylinder 3 with open upper and lower ends is fixedly connected to the top of the first rotating platform 2. A fine filter cylinder 4 is connected to the lower part of the outer wall of the first rotating platform 2 through a flange.

[0028] The bottom of the first rotating platform 2 is fixedly connected to a second rotating platform 401 in the shape of a frustum. The lower outer wall of the second rotating platform 401 is connected to an ultrafiltration cylinder 402 via a flange. The bottom of the second rotating platform 401 is fixedly connected to a rotating shaft 403. The bottom of the rotating shaft 403 passes through the bottom of the fixed cylinder 1 and extends to the bottom of the fixed cylinder 1 via a mechanical seal.

[0029] The top of the fixed cylinder 1 is threadedly connected to a top cover 6, and the top of the top cover 6 is connected to an inlet pipe 601. The inlet pipe 601 is opposite to the upper port of the primary filter cylinder 3, and a valve and a rotary joint are provided on the inlet pipe 601.

[0030] Side plates 7 are symmetrically arranged on the left and right sides of the fixed cylinder 1. A rotating rod 701 is rotatably connected to the outer wall of the side plate 7 via a bearing. The rotating rod 701 is fixedly connected to the outer wall of the fixed cylinder 1. A second motor 702 is fixedly installed on the outer wall of one of the side plates 7 via a base. The output end of the second motor 702 is fixedly connected to the corresponding rotating rod 701.

[0031] A rinsing mechanism is provided below the fixed cylinder 1.

[0032] In this embodiment: the liquid to be filtered enters the device through the inlet pipe 601. The liquid first enters the innermost primary filter cartridge 3. Driven by the first motor 406, the second gear 405 meshes with the first gear 404, driving the rotating shaft 403 to rotate. The rotating shaft 403 drives the second rotating platform 401 and the first rotating platform 2 on it to rotate as a whole, thereby making the primary filter cartridge 3, the fine filter cartridge 4 and the ultrafiltration cartridge 402 rotate synchronously, filtering the liquid in sequence, avoiding retention and improving filtration efficiency.

[0033] After filtration is completed, the second motor 702 is started, driving the rotating rod 701 to rotate the entire fixed cylinder 1 180 degrees around the axis of the rotating rod 701. The first electric push rod 8031 ​​is started, pushing the slide plate 803 to slide laterally on the slide rail 802. The slide plate 803 drives the second electric push rod 804 and the flushing pipe 805 fixed on it to move laterally together, so that the flushing pipe 805 is aligned with the filter cylinder area that needs to be flushed. The second electric push rod 804 is started, pushing the flushing pipe 805 upward into the filter cylinder. Water is supplied to the flushing pipe 805 through the water supply hose, so as to achieve comprehensive flushing of the primary filter cylinder 3, the fine filter cylinder 4, the ultrafiltration cylinder 402 and the filter cylinder at different depths, so as to facilitate the sequential cleaning of each filter cylinder.

[0034] In this device, it should be noted that the second motor 702 is a worm gear motor, which can self-lock when power is off.

[0035] As a technical optimization of this utility model, the rinsing mechanism includes a support plate 8 fixed to the bottom of two side plates 7, a fence plate 801 is provided on the top of the support plate 8, and the fence plate 801 is located between the two side plates 7; a second electric push rod 804 is provided on the top of the fence plate 801, and a rinsing pipe 805 is fixedly connected to the output end of the second electric push rod 804. Multiple nozzles are provided on the rinsing pipe 805, and a water supply hose is connected to the outer wall of the rinsing pipe 805.

[0036] In this embodiment: the support plate 8 is fixed to the bottom of the two side plates 7 to form a stable base; the fence plate 801 is placed above the support plate as the operating platform of the flushing mechanism; the second electric push rod 804 pushes the flushing pipe 805 to move up or down; the flushing pipe 805 sprays high-pressure water through the nozzle; the water supply hose provides water; and the flushed wastewater and filter residue fall through the gaps in the fence plate 801.

[0037] As a technical optimization of this utility model, a slide rail 802 is fixedly installed on the top of the fence panel 801, and an inverted U-shaped slide plate 803 is slidably connected to the top of the slide rail 802; a second electric push rod 804 is fixed to the top of the slide plate 803; a first electric push rod 8031 ​​is fixedly installed on the outer wall of one of the side panels 7, and the output end of the first electric push rod 8031 ​​passes through the side panel 7 and is fixedly connected to the slide plate 803.

[0038] In this embodiment: the first electric actuator 8031 ​​pushes the slide plate 803 to slide horizontally along the slide rail 802, so that the flushing pipe 805 is aligned with different filter cartridges (such as the primary filter cartridge 3, the fine filter cartridge 4, and the ultrafiltration cartridge 402).

[0039] The second electric actuator 804 drives the flushing pipe 805 to rise and fall vertically, penetrating deeper into the filter cartridge at different depths.

[0040] As a technical optimization of this utility model, the rinsing mechanism also includes a collection box 9, the top of the collection box 9 is open, the horizontal projection size of the collection box 9 is larger than the horizontal projection size of the fence plate 801, and the bottom of the collection box 9 is inclined; the outer wall of the collection box 9 is connected to a slag discharge pipe with a valve.

[0041] In this embodiment: the rinsed wastewater and filter residue fall through the grid plate 801 into the collection box 9 below. The bottom of the collection box 9 is tilted to guide the waste residue to converge towards the discharge pipe. When the valve of the discharge pipe is opened, the waste residue mixture is discharged uniformly.

[0042] As a technical optimization of this utility model, a first gear 404 is fixedly connected to the outer wall of the rotating shaft 403, and the first gear 404 meshes with the second gear 405; a first motor 406 is fixedly installed at the bottom of the fixed cylinder 1 through the base, and the output end of the first motor 406 is fixedly connected to the second gear 405.

[0043] In this embodiment: the first motor 406 drives the second gear 405 to rotate, the second gear 405 meshes with the first gear 404, driving the rotating shaft 403 to rotate, and the rotating shaft 403 drives the second rotating table 401 and the first rotating table 2, so that the primary filter cartridge 3, the fine filter cartridge 4, and the ultrafiltration cartridge 402 rotate synchronously, generating centrifugal force to accelerate filtration.

[0044] As a technical optimization of this utility model, a rotating ring 5 is fixedly connected to the outer wall of the second rotating platform 401, and an annular groove 501 is opened on the inner wall of the fixed cylinder 1, and the rotating ring 5 is slidably embedded in the groove 501.

[0045] In this embodiment: the rotating ring 5 is fixed to the outside of the second rotating platform 401 and embedded in the annular groove 501 of the inner wall of the fixed cylinder 1. During rotation, the rotating ring 5 slides in the groove 501 to constrain the radial displacement of the filter cartridge assembly and ensure stable operation.

[0046] As a technical optimization of this utility model, the bottom side wall of the fixed cylinder 1 is connected to a liquid outlet pipe 101 with a valve.

[0047] In this embodiment: the medicine solution after three-stage filtration falls into the bottom of the fixed cylinder 1, the valve of the outlet pipe 101 is opened, and the collected finely filtered medicine solution is discharged from the side wall.

[0048] The working principle and usage process of this utility model: The power supply and PLC touch screen of the device are electrically connected to the device's external wall, allowing the device to operate. During use, the liquid to be filtered enters the device through the inlet pipe 601 on the top cover 6. The rotary joint on the inlet pipe 601 allows the liquid to be injected into the rotating primary filter cartridge 3 without the pipe rotating. The liquid first enters the innermost primary filter cartridge 3. Driven by the first motor 406, the second gear 405 meshes with the first gear 404, driving the rotating shaft 403 to rotate. The rotating shaft 403 drives the second rotating platform 401 and the first rotating platform 2 on it to rotate as a whole, thus causing the primary filter cartridge 3 (90 mesh), the fine filter cartridge 4 (180 mesh), and the ultrafiltration cartridge 402 (0.8 μm) to rotate synchronously. The liquid is filtered within the primary filter cartridge 3... Under the action of gravity and centrifugal force, liquid smaller than the filter cartridge aperture is thrown out, while larger impurities are trapped inside the primary filter cartridge 3. The initial filtrate flows to the fine filter cartridge 4. Under the action of centrifugal force, impurities smaller than but larger than the mesh of the fine filter cartridge 4 are trapped, and finer filtrate is thrown out. The secondary filtrate flows to the ultrafiltration cartridge 402, where the finest filtration is performed under the action of centrifugal force. Liquid smaller than the mesh of the ultrafiltration cartridge 402 is thrown out and finally collects at the bottom of the fixed cartridge 1. The finest impurities are trapped inside the ultrafiltration cartridge 402. The fine filtration solution collected at the bottom of the fixed cartridge 1 is discharged through the outlet pipe 101 (valve controlled) at the bottom. The rotating ring 5 on the outer side of the second rotating platform 401 slides in the groove 501 on the inner wall of the fixed cartridge 1, providing stable radial support for the entire rotating filter assembly and preventing shaking.

[0049] After filtration is complete, close the valve on the outlet pipe 101 and remove the top cover 6. Start the second motor 702, which drives the rotating rod 701 to rotate the entire fixed cylinder 1 (including all internal filter cartridge assemblies) 180 degrees around the axis of the rotating rod 701. Activate the first electric push rod 8031 ​​to push the slide plate 803 to slide laterally on the slide rail 802. The slide plate 803 drives the second electric push rod 804 and the flushing pipe 805 fixed thereon to move laterally together, aligning the flushing pipe 805 with the filter cartridge area that needs to be flushed. Activate the second electric push rod 804 to push the flushing pipe 805 upwards into the corresponding filter cartridge. Water is supplied to the flushing pipe 805 through the water supply hose, and water is sprayed from multiple nozzles on the pipe to clean the initial filter cartridge. The filter screen surfaces of primary filter cartridge 3, fine filter cartridge 4, and ultrafiltration cartridge 402 are sequentially subjected to high-pressure washing to remove the trapped filter residue. Through the cooperation of the first electric push rod 8031 ​​and the second electric push rod 804, the lateral and longitudinal positions of the washing pipe 805 can be adjusted to achieve comprehensive washing of primary filter cartridge 3, fine filter cartridge 4, ultrafiltration cartridge 402, and different depth areas of the filter cartridges. The washed-off filter residue and water flow downward through the grid plate 801 (allowing water flow and small residues to pass through, possibly supporting large residues or serving as a guide). The filter residue and water finally fall into the collection box 9. The inclined bottom of the collection box 9 helps to collect residues and wastewater. The residue mixture collected at the bottom of the collection box 9 can be discharged through the slag discharge pipe with a valve connected to its outer wall.

[0050] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A multi-stage fine filtration device for traditional Chinese medicine decoction pieces, comprising a fixed cylinder (1), characterized in that: The fixed cylinder (1) has a first rotating platform (2) in the shape of a frustum coaxially arranged inside. The top of the first rotating platform (2) is fixedly connected to a primary filter cylinder (3) with open upper and lower ends. The lower part of the outer wall of the first rotating platform (2) is connected to a fine filter cylinder (4) through a flange. The bottom of the first rotating platform (2) is fixedly connected to a second rotating platform (401) in the shape of a frustum. The outer wall of the second rotating platform (401) is connected to an ultrafiltration cylinder (402) via a flange. The bottom of the second rotating platform (401) is fixedly connected to a rotating shaft (403). The bottom of the rotating shaft (403) passes through the bottom of the fixed cylinder (1) and extends to the bottom of the fixed cylinder (1) via a mechanical seal. The top of the fixed cylinder (1) is threadedly connected to a top cover (6), and the top of the top cover (6) is connected to an inlet pipe (601). The inlet pipe (601) is opposite to the upper port of the primary filter cylinder (3), and a valve and a rotary joint are provided on the inlet pipe (601). Side plates (7) are symmetrically arranged on the left and right sides of the fixed cylinder (1). A rotating rod (701) is rotatably connected to the outer wall of the side plate (7) through a bearing. The rotating rod (701) is fixedly connected to the outer wall of the fixed cylinder (1). A second motor (702) is fixedly installed on the outer wall of one of the side plates (7) through a base. The output end of the second motor (702) is fixedly connected to the corresponding rotating rod (701). A rinsing mechanism is provided below the fixed cylinder (1).

2. The multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The flushing mechanism includes a support plate (8) fixed to the bottom of the two side plates (7), and a fence plate (801) is provided on the top of the support plate (8), which is located between the two side plates (7); a second electric actuator (804) is provided on the top of the fence plate (801), and a flushing pipe (805) is fixedly connected to the output end of the second electric actuator (804). Multiple nozzles are provided on the flushing pipe (805), and a water supply hose is connected to the outer wall of the flushing pipe (805).

3. The multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to claim 2, characterized in that: A slide rail (802) is fixedly installed on the top of the fence panel (801), and an inverted U-shaped slide plate (803) is slidably connected to the top of the slide rail (802); the second electric actuator (804) is fixed to the top of the slide plate (803); a first electric actuator (8031) is fixedly installed on the outer wall of one of the side panels (7), and the output end of the first electric actuator (8031) passes through the side panel (7) and is fixedly connected to the slide plate (803).

4. The multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to claim 2, characterized in that: The flushing mechanism also includes a collection box (9), the top of which is open, the horizontal projection size of which is larger than the horizontal projection size of the fence plate (801), and the bottom of which is inclined; the outer wall of which is connected to a slag discharge pipe with a valve.

5. The multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The outer wall of the rotating shaft (403) is fixedly connected to a first gear (404), which meshes with a second gear (405); the bottom of the fixed cylinder (1) is fixedly mounted with a first motor (406) via a base, and the output end of the first motor (406) is fixedly connected to the second gear (405).

6. The multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The outer side wall of the second rotating platform (401) is fixedly connected to a rotating ring (5), and the inner wall of the fixed cylinder (1) is provided with an annular groove (501), and the rotating ring (5) is slidably embedded in the groove (501).

7. The multi-stage fine filtration device for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The bottom side wall of the fixed cylinder (1) is connected to a liquid outlet pipe (101) with a valve.

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