A traditional Chinese medicine extraction tank back flushing device

Abstract

The utility model provides a kind of traditional chinese medicine extraction tank back flushing device, the traditional chinese medicine extraction tank back flushing device includes jar body, filter screen, back flushing pipe, pressure stabilizing bin and elastic member.The utility model provides traditional chinese medicine extraction tank back flushing device, when using, gas pressure that can be adjusted to be delivered to the inside of back flushing pipe, make gas pressure value slightly greater than preset value, so as to can guarantee multiple gas outlet hole can effectively discharge gas back flushing to filter screen.Simultaneously, in the process of operation, when pressure is too large, gas can promote cover plate to move upward, after cover plate separates from pressure stabilizing bin, gas in the inside of pressure stabilizing bin can discharge and play the effect of pressure reduction, avoid that pressure is too large and damage connection position and connecting component.And the gas after pressure relief can be fully utilized to back flushing to filter screen again.The setting of pressure stabilizing bin can realize the effect of automatic pressure relief, guarantee the stability of back flushing device operation, improve the convenience in the process of equipment operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of traditional Chinese medicine extraction equipment, specifically relating to a backflushing device for a traditional Chinese medicine extraction tank. Background Technology

[0002] Traditional Chinese medicine extraction tanks are key pieces of equipment in the pharmaceutical process of traditional Chinese medicine, primarily used to extract active ingredients from medicinal herbs. During use, pre-treated herbs are placed inside the extraction tank, an appropriate solvent is added, and heating is employed to extract the medicinal components. A filter screen is typically designed at the bottom of the extraction tank to remove residue. To prevent clogging, a backflushing device is installed at the bottom of the filter screen, which delivers gas into the extraction tank to backflush the filter. This not only prevents clogging but also agitates the herbs, improving the extraction efficiency. The backflush device includes a backflush pipe located at the bottom of the extraction tank. To ensure effective backflush of gas onto the filter screen, the length of the backflush pipe is increased, allowing it to be effectively positioned below the filter screen. Multiple backflush holes are provided on the backflush pipe to ensure an effective backflush area. However, with the increase in the length of the backflush pipe and the number of backflush holes, a stable input gas pressure is required to ensure a stable exhaust volume at each outlet. Excessive pressure, however, can affect the service life of various connection points or components. Therefore, gas pressure monitoring and adjustment are necessary, causing inconvenience during use. Utility Model Content

[0003] This utility model provides a backflush device for a traditional Chinese medicine extraction tank, which aims to solve the problem that the gas pressure of the backflush device inside the traditional Chinese medicine extraction tank is not easy to adjust during use, resulting in inconvenience in field application.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a backflushing device for a traditional Chinese medicine extraction tank, comprising: Tank body; A filter screen is installed at the bottom of the tank. A backflush pipe is installed below the filter screen. The backflush pipe includes an air inlet end and an air outlet end, and a plurality of air outlet holes are provided in the middle of the backflush pipe. A pressure stabilizing chamber is connected to the air outlet of the backflush pipe. A cover plate is slidably provided at the opening of the pressure stabilizing chamber, and the cover plate is used to cover the opening of the pressure stabilizing chamber. An elastic element is disposed between the pressure stabilizing chamber and the cover plate, for pushing the cover plate to cover the opening of the pressure stabilizing chamber.

[0005] In one possible implementation, the voltage stabilizing chamber is an annular structure, with the opening of the voltage stabilizing chamber located at the top of the voltage stabilizing chamber. The cover plate is an annular structure adapted to the opening, and the inner ring of the cover plate is bent and has a guide plate that is slidably disposed on the inner wall of the voltage stabilizing chamber.

[0006] In one possible implementation, the outer ring of the cover plate is bent to form an air outlet chamber, which is slidably disposed on the outer side wall of the pressure stabilizing chamber. The side of the air outlet chamber closest to the pressure stabilizing chamber is an open structure, and the side wall of the air outlet chamber is provided with multiple air leakage holes.

[0007] In one possible implementation, a plurality of guide columns are fixedly installed inside the pressure stabilizing chamber, the cover plate is slidably disposed on the guide columns, and the elastic element is fitted on the guide columns and abuts against the guide columns and the cover plate.

[0008] In one possible implementation, the filter screen is a hemispherical structure, and a support sleeve supporting the filter screen is fixedly installed at the bottom of the tank, with the pressure stabilizing chamber fixed to the outside of the support sleeve.

[0009] In one possible implementation, the support sleeve is supported in the middle of the filter screen.

[0010] In one possible implementation, the backflush pipe comprises a plurality of annular pipes sequentially nested together, with adjacent annular pipes being interconnected.

[0011] In one possible implementation, the backflush pipe is connected to a nozzle for outputting gas, and the nozzle has an outlet hole on its outer wall and top.

[0012] In one possible implementation, the top of the nozzle is provided with a conical dispersing portion, the outer diameter of which gradually increases from bottom to top.

[0013] In one possible implementation, a connecting ring is fixedly installed at the bottom of the filter screen, and a flange for fixing to the connecting ring is fixedly installed on the backflush pipe.

[0014] The solution shown in this application embodiment, compared with the prior art, features a tank body with a cap installed at the bottom. The filter screen and backflush pipe are installed inside the cap. A pressure stabilizing chamber is installed at the outlet of the backflush pipe, with its opening located on the top surface. A cover plate is fitted over the opening of the pressure stabilizing chamber, and this cover plate is pressed against the top of the pressure stabilizing chamber by an elastic element, thus preventing gas from flowing out. During use, the gas pressure delivered to the backflush pipe can be adjusted to be slightly higher than a preset value, ensuring that multiple outlets can effectively discharge gas to backflush the filter screen. Simultaneously, during operation, when the pressure is too high, the gas will push the cover plate upwards. After the cover plate detaches from the pressure stabilizing chamber, the gas inside the chamber can be discharged, achieving a pressure reduction effect and preventing damage to the connection points and components due to excessive pressure. Furthermore, the depressurized gas can be fully utilized to backflush the filter screen again. The pressure stabilizing chamber achieves automatic pressure relief, ensuring the stability of the backflush device and improving the convenience of equipment operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the backflushing device for a traditional Chinese medicine extraction tank provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the pressure stabilizing chamber provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the backflush pipe provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the air nozzle provided in an embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Tank body; 2. Filter screen; 3. Backflush pipe; 31. Ring pipe; 32. Flange; 4. Pressure stabilizing chamber; 41. Guide column; 5. Cover plate; 51. Guide plate; 52. Gas outlet chamber; 6. Elastic component; 7. Support sleeve; 8. Air nozzle; 81. Dispersion section; 9. Connecting ring. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Please refer to the following: Figures 1 to 4The backflush device for a traditional Chinese medicine extraction tank provided by this utility model will now be described. The backflush device includes a tank body 1, a filter screen 2, a backflush pipe 3, a pressure stabilizing chamber 4, and an elastic element 6. The filter screen 2 is installed at the bottom of the tank body 1; the backflush pipe 3 is installed below the filter screen 2, and the backflush pipe 3 includes an air inlet end and an air outlet end, with multiple air outlet holes in the middle; the pressure stabilizing chamber 4 is connected to the air outlet end of the backflush pipe 3, and a cover plate 5 is slidably installed at the opening of the pressure stabilizing chamber 4, the cover plate 5 being used to cover the opening of the pressure stabilizing chamber 4; the elastic element 6 is disposed between the pressure stabilizing chamber 4 and the cover plate 5, and is used to push the cover plate 5 to cover the opening of the pressure stabilizing chamber 4.

[0019] The backflush device for the herbal extraction tank provided in this embodiment, compared with the prior art, features a tank body 1 with a cap installed at the bottom. A filter screen 2 and a backflush pipe 3 are installed inside the cap. A pressure stabilizing chamber 4 is installed at the outlet of the backflush pipe 3, with its opening located on its top surface. A cover plate 5 is placed over the opening of the pressure stabilizing chamber 4, and the cover plate 5 is pressed against the top of the pressure stabilizing chamber 4 by an elastic element 6, thus preventing gas from flowing out of the pressure stabilizing chamber 4. During use, the gas pressure delivered to the backflush pipe 3 can be adjusted to be slightly higher than a preset value, ensuring that multiple outlets can effectively discharge gas to backflush the filter screen 2. Simultaneously, during operation, when the pressure is too high, the gas will push the cover plate 5 upwards. After the cover plate 5 detaches from the pressure stabilizing chamber 4, the gas inside the pressure stabilizing chamber 4 can be discharged, achieving a pressure reduction effect and preventing damage to the connection points and components due to excessive pressure. Furthermore, the depressurized gas can be fully utilized again to backflush the filter screen 2. By setting up the pressure stabilizing chamber 4, an automatic pressure relief effect can be achieved, ensuring the stability of the backflushing device and improving the convenience of equipment operation.

[0020] Preferably, in this embodiment, a sealing gasket is also provided between the cover plate 5 and the pressure stabilizing chamber 4. The sealing gasket is fixedly installed on the top of the pressure stabilizing chamber 4 or the bottom of the cover plate 5, thereby improving the sealing effect between the cover plate 5 and the pressure stabilizing chamber 4.

[0021] Preferably, in this embodiment, the air inlet of the backflush pipe 3 is connected to compressed air or steam. When the air inlet of the backflush pipe 3 is connected to steam, the inside of the tank 1 can be heated while backflushing.

[0022] In some embodiments, the aforementioned pressure stabilizing chamber 4 can be adopted as follows: Figure 1 , Figure 2 The structure shown. See also... Figure 1 , Figure 2The pressure stabilizing chamber 4 has a ring-shaped structure, with its opening located at the top. The cover plate 5 is a ring-shaped structure adapted to the opening, and its inner ring is bent to accommodate a guide plate 51 that slides along the inner wall of the pressure stabilizing chamber 4. The pressure stabilizing chamber 4 is entirely ring-shaped, and a ring-shaped gas storage chamber is located inside it. The guide plate 51 is bent downwards on the inner ring of the cover plate 5, and slides against the inner wall of the pressure stabilizing chamber 4. This ensures the stability of the cover plate 5's movement on the pressure stabilizing chamber 4. Simultaneously, the sliding fit between the guide plate 51 and the pressure stabilizing chamber 4 prevents the cover plate 5 from shaking relative to the pressure stabilizing chamber 4 during depressurization, thus avoiding noise or positional displacement. The guide plate 51 improves the guidance between the pressure stabilizing chamber 4 and the cover plate 5, ensuring the stability of their relative displacement.

[0023] In some embodiments, the cover plate 5 may be adopted as follows: Figure 2 The structure shown. See also Figure 2 An air outlet chamber 52 is bent at the outer ring of the cover plate 5 and slidably mounted on the outer wall of the pressure stabilizing chamber 4. The side of the air outlet chamber 52 closest to the pressure stabilizing chamber 4 is open, and multiple air leakage holes are provided on the side wall of the air outlet chamber 52. The air outlet chamber 52 is fixedly installed on the bottom side of the outer ring of the cover plate 5 and slidably mounted on the outer wall of the pressure stabilizing chamber 4. A bottom plate is folded outward at the bottom of the air outlet chamber 52 to abut against the outer wall of the pressure stabilizing chamber 4. When the cover plate 5 moves upward under the influence of air pressure, the gas inside the pressure stabilizing chamber 4 is transported to the air outlet chamber 52 and discharged through the air leakage holes on the air outlet chamber 52, thereby relieving pressure. When the pressure inside the pressure stabilizing chamber 4 decreases, the cover plate 5 is pushed back onto the top of the pressure stabilizing chamber 4 by the elastic element 6, thereby ensuring a stable exhaust volume on the backflush pipe 3.

[0024] In some embodiments, the aforementioned pressure stabilizing chamber 4 can be adopted as follows: Figure 2 The structure shown. See also Figure 2 Multiple guide posts 41 are fixedly installed inside the voltage stabilizing chamber 4. A cover plate 5 is slidably mounted on the guide posts 41, and an elastic element 6 is fitted onto the guide posts 41 and abuts against the guide posts 41 and the cover plate 5. Multiple guide posts 41 are evenly spaced along the circumference of the voltage stabilizing chamber 4. The cover plate 5 is slidably mounted on the guide posts 41. The elastic element 6 is a spring, fitted onto the outside of the guide posts 41, which guide the elastic element 6. The guide posts 41 serve to guide the cover plate 5 and facilitate the installation of the elastic element 6.

[0025] Preferably, in this embodiment, a limiting member is threadedly connected to the top of the guide post 41, and one end of the elastic member 6 abuts against the limiting member. By adjusting the position of the limiting member, the pressing force of the elastic member 6 on the cover plate 5 can be adjusted, thereby adjusting the pressure relief value of the pressure stabilizing chamber 4.

[0026] In some embodiments, the filter 2 described above may employ, for example... Figure 1 The structure shown. See also Figure 1 The filter screen 2 has a hemispherical structure, and a support sleeve 7 is fixedly installed at the bottom of the tank 1 to support the filter screen 2. The pressure stabilizing chamber 4 is fixedly installed on the outside of the support sleeve 7. The filter screen 2 has a hemispherical structure, and the center of the filter screen 2 is located below the filter screen 2, thereby increasing the storage area of ​​the medicinal materials. The support sleeve 7 is also installed below the filter screen 2. The top end of the support sleeve 7 is fixedly installed on the filter screen 2, and the bottom end of the support sleeve 7 is fixedly installed at the bottom of the tank 1. This provides support for the filter screen 2 and improves its support strength.

[0027] Specifically, in this embodiment, the pressure stabilizing chamber 4 is fixed on the outside of the support sleeve 7, which can fix the pressure stabilizing chamber 4 and ensure the stability of the pressure stabilizing chamber 4 and the backflush pipe 3.

[0028] In some embodiments, the support sleeve 7 may be adopted as follows: Figure 1 The structure shown. See also Figure 1 The support sleeve 7 supports the middle of the filter screen 2, and the pressure stabilizing chamber 4 is fitted on the outside of the support sleeve 7. Since the filter screen 2 has a hemispherical structure, most of the raw materials are located at the edges of the filter screen 2. When there are many raw materials, they are stored at the top of the filter screen 2. Therefore, when using the backflushing device, the air pressure at the input end can be adjusted. When the air pressure at the input end is low, the area on the side of the filter screen 2 is backflushed first. When the air pressure at the input end increases, the pressure stabilizing chamber 4 depressurizes, and the middle of the filter screen 2 is backflushed. Thus, the backflushing position can be adjusted according to the usage, flexibly utilizing the backflushing position of the backflushing pipe 3 to backflush the filter screen 2. When there are few raw materials, air consumption can be saved, reducing production costs.

[0029] In some embodiments, the backflush pipe 3 may be as follows: Figure 1 , Figure 3 The structure shown. See also... Figure 1 , Figure 3 The backflush pipe 3 comprises multiple annular pipes 31 sequentially nested together, with adjacent annular pipes 31 interconnected. The backflush pipe 3 includes multiple annular pipes 31 with progressively larger outer diameters. The larger-diameter annular pipe 31 is nested outside the smaller-diameter annular pipe 31, and a connecting pipe connects adjacent annular pipes 31. Multiple connecting pipes are evenly spaced along the circumference of the annular pipes 31. Multiple air outlets are provided on each annular pipe 31, also evenly spaced along the circumference of the annular pipe 31. This increases the backflush area of ​​the filter screen 2.

[0030] Specifically, in this embodiment, the pressure stabilizing chamber 4 is connected to the innermost annular pipe 31, and the pressure stabilizing chamber 4 is located inside the innermost annular pipe 31.

[0031] In some embodiments, the backflush pipe 3 may be as follows: Figure 3 , Figure 4 The structure shown. See also... Figure 3 , Figure 4 The backflush pipe 3 is connected to a nozzle 8 for outputting gas. The outer wall and top of the nozzle 8 are provided with air outlets. Multiple nozzles 8 are installed on the backflush pipe 3, and multiple air outlets are provided on the side wall of the nozzle 8, so that the input gas can be dispersed in the horizontal direction, which can effectively backflush the filter screen 2.

[0032] In some embodiments, the above-mentioned air nozzle 8 can be adopted as follows: Figure 4 The structure shown. See also Figure 4 The top of the nozzle 8 is provided with a conical dispersion section 81, the outer diameter of which gradually increases from bottom to top. The dispersion section 81 has a conical structure, and its design guides the bubbles to expand outward when the air pressure is low. As the bubbles expand, the lateral area of ​​the backflushing gas is increased, thereby improving the backflushing efficiency.

[0033] Specifically, in this embodiment, when the air pressure is low, the bubbles are output from inside the backflush pipe 3 and move upward. When they move to the dispersion section 81, they can move outward through the guide of the dispersion section 81, thereby achieving the effect of gas dispersion.

[0034] Specifically, in this embodiment, air outlet holes are provided on the outer side wall and top of the air nozzle 8. When the air pressure is high, the gas can be ejected along the radial and axial directions of the air nozzle 8, thereby increasing the backflush area.

[0035] In some embodiments, the filter 2 described above may employ, for example... Figure 1 , Figure 3 The structure shown. See also... Figure 1 , Figure 3 A connecting ring 9 is fixedly installed at the bottom of the filter screen 2, and a flange 32 for fixing to the connecting ring 9 is fixedly installed on the backflush pipe 3. Specifically, in this embodiment, the connecting ring 9 is fixed to the end cap at the bottom of the tank body 1, and the filter screen 2 is fixedly installed on the connecting ring 9 by bolts, thereby fixing the filter screen 2. A flange 32 is fixedly installed on the outer wall of the outermost annular pipe 31, and the flange 32 is fixedly installed on the connecting ring 9 by bolts, thereby fixing the outermost annular pipe 31.

[0036] Specifically, in this embodiment, the outer side of the backflush pipe 3 is fixed to the connecting ring 9 by the flange 32, while the inner side of the backflush pipe 3 is fixed to the support sleeve 7 by the pressure stabilizing chamber 4. This can effectively improve the fixation of both the air inlet and outlet of the backflush pipe 3, and improve the fixation effect of the backflush pipe 3 inside the tank 1.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A backflushing device for a traditional Chinese medicine extraction tank, characterized in that, include: Tank body (1); A filter screen (2) is installed at the bottom of the tank (1); A backflush pipe (3) is installed below the filter screen (2). The backflush pipe (3) includes an air inlet end and an air outlet end, and a plurality of air outlet holes are provided in the middle of the backflush pipe (3). A pressure stabilizing chamber (4) is connected to the air outlet of the backflush pipe (3). A cover plate (5) is slidably provided at the opening of the pressure stabilizing chamber (4). The cover plate (5) is used to cover the opening of the pressure stabilizing chamber (4). An elastic element (6) is disposed between the pressure stabilizing chamber (4) and the cover plate (5) for pushing the cover plate (5) to cover the opening of the pressure stabilizing chamber (4).

2. The backflushing device for the traditional Chinese medicine extraction tank as described in claim 1, characterized in that, The pressure stabilizing chamber (4) has an annular structure, and the opening of the pressure stabilizing chamber (4) is located at the top of the pressure stabilizing chamber (4). The cover plate (5) has an annular structure that is adapted to the opening. The inner ring of the cover plate (5) is bent and has a guide plate (51) that is slidably disposed on the inner wall of the pressure stabilizing chamber (4).

3. The backflushing device for the traditional Chinese medicine extraction tank as described in claim 2, characterized in that, The outer ring of the cover plate (5) is bent to form an air outlet chamber (52). The air outlet chamber (52) is slidably disposed on the outer side wall of the pressure stabilizing chamber (4). The side of the air outlet chamber (52) near the pressure stabilizing chamber (4) is an open structure, and multiple air leakage holes are provided on the side wall of the air outlet chamber (52).

4. The backflushing device for the traditional Chinese medicine extraction tank as described in claim 2, characterized in that, The pressure stabilizing chamber (4) has multiple guide columns (41) fixedly installed inside. The cover plate (5) is slidably disposed on the guide columns (41), and the elastic element (6) is fitted on the guide columns (41) and abuts against the guide columns (41) and the cover plate (5).

5. The backflushing device for the traditional Chinese medicine extraction tank as described in claim 2, characterized in that, The filter screen (2) has a hemispherical structure, and a support sleeve (7) supporting the filter screen (2) is fixedly installed at the bottom of the tank (1). The pressure stabilizing chamber (4) is fitted and fixed on the outside of the support sleeve (7).

6. The backflushing device for a traditional Chinese medicine extraction tank as described in claim 5, characterized in that, The support sleeve (7) is supported in the middle of the filter screen (2).

7. The backflushing device for a traditional Chinese medicine extraction tank as described in claim 1, characterized in that, The backflush pipe (3) includes multiple annular pipes (31) that are sequentially fitted together, with adjacent annular pipes (31) connected to each other.

8. The backflushing device for a traditional Chinese medicine extraction tank as described in claim 1, characterized in that, The backflush pipe (3) is connected to a gas nozzle (8) for outputting gas, and the gas outlet is provided on the outer wall and top of the gas nozzle (8).

9. The backflushing device for a traditional Chinese medicine extraction tank as described in claim 8, characterized in that, The top of the air nozzle (8) is provided with a conical dispersion part (81), and the outer diameter of the dispersion part (81) gradually increases from bottom to top.

10. The backflushing device for a traditional Chinese medicine extraction tank as described in claim 1, characterized in that, A connecting ring (9) is fixedly installed at the bottom of the filter screen (2), and a flange (32) for fixing to the connecting ring (9) is fixedly installed on the backflush pipe (3).

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