A low-temperature distillation and concentration equipment for alcohol extract of traditional Chinese medicine

By introducing a main and auxiliary filter cylinder structure into the low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extracts, the problem of easy saturation or clogging of activated carbon adsorption units is solved, achieving continuous and efficient tail gas treatment, and ensuring stable operation and environmentally friendly emissions of the equipment.

CN224485429UActive Publication Date: 2026-07-14YANGZHOU ZHONGHUI PHARM CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU ZHONGHUI PHARM CO LTD
Filing Date
2025-07-26
Publication Date
2026-07-14

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    Figure CN224485429U_ABST
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Abstract

The utility model relates to traditional Chinese medicinal material processing technical field especially relates to a traditional Chinese medicine alcohol extract low temperature distillation concentration equipment. Traditional Chinese medicine alcohol extract low temperature distillation concentration equipment includes exhaust pipe, and the one side of exhaust pipe is installed with installation cylinder, and installation cylinder bottom is linked with exhaust pipe, and the main filter cylinder of filtering tail gas is installed on installation cylinder, and the vertical butt joint cylinder is still fixedly installed in exhaust pipe middle segment, and butt joint cylinder is linked with exhaust pipe, and the vice filter cylinder is installed on butt joint cylinder, and pressure structure is installed in butt joint cylinder, and pressure structure includes the support b of fixed mounting in butt joint cylinder inside, and the sleeve b of fixed mounting towards exhaust pipe is installed on support b, and the sealing plate b for closing butt joint cylinder bottom is installed in butt joint cylinder. The utility model discloses the vice filter cylinder as the standby adsorption unit, when the main filter cylinder is saturated because of activated carbon adsorption or the efficiency is reduced because of impurity blockage, automatically access auxiliary processing, avoid tail gas processing interruption, guarantee equipment continuous operation.
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Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine processing technology, and in particular to a low-temperature distillation and concentration device for traditional Chinese medicine alcohol extract. Background Technology

[0002] In the field of Chinese medicinal herb processing, low-temperature distillation and concentration of Chinese medicinal herb alcohol extracts is an important process. The efficiency and reliability of its exhaust gas treatment system directly affect production continuity, environmental protection indicators, and cost control.

[0003] Currently, in the tail gas treatment system of traditional Chinese medicine alcohol extract low-temperature distillation and concentration equipment, existing equipment mostly uses a single activated carbon adsorption unit. When the activated carbon is saturated or blocked by drug droplets and particulate matter, the tail gas treatment efficiency drops significantly, and it may even be necessary to stop the machine to replace the activated carbon, resulting in production interruption and affecting the continuity of the concentration process.

[0004] Therefore, it is necessary to provide a new low-temperature distillation and concentration device for traditional Chinese medicine alcohol extracts to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a new low-temperature distillation and concentration device for traditional Chinese medicine alcohol extracts.

[0006] The low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extract provided by this utility model includes: an exhaust pipe, an installation cylinder installed on one side of the exhaust pipe, and the bottom of the installation cylinder is connected to the exhaust pipe;

[0007] The mounting cylinder is equipped with a main filter cylinder for filtering exhaust gas. A vertical docking cylinder is also fixedly installed in the middle section of the exhaust pipe, and the docking cylinder is connected to the exhaust pipe. A secondary filter cylinder is installed on the docking cylinder, and a pressure structure is installed in the docking cylinder.

[0008] The pressure structure includes a bracket b fixedly installed inside the docking cylinder, a sleeve b fixedly installed on the bracket b facing the exhaust pipe, a sealing plate b for sealing the bottom of the docking cylinder installed in the docking cylinder, a fixing rod b fixedly installed on the sealing plate b and inserted into the sleeve b, and a spring b with one end abutting against the bracket b and the other end of the spring b abutting against the sealing plate b.

[0009] Preferably, an annular sealing gasket b is fixedly installed at the end of the sealing plate b away from the sleeve b.

[0010] Preferably, the main filter cartridge includes a cylinder body a threadedly connected to the mounting cylinder, a cylinder cover a threadedly connected to the cylinder body a, and a baffle mesh a installed on both the cylinder cover a and the bottom of the cylinder body a.

[0011] Preferably, the auxiliary filter cartridge includes a cylinder body b threadedly connected to the docking cylinder, a cylinder cover b threadedly connected to the cylinder body b, and baffles b installed on both the cylinder cover b and the bottom of the cylinder body b.

[0012] Preferably, the mounting cylinder is equipped with a closed structure that cooperates with the main filter cylinder. The closed structure includes a bracket a fixedly installed on the inner wall of the mounting cylinder, a fixing rod a fixedly installed on the bracket a facing the cylinder a, a sleeve a sleeve a sleeve a sleeve a sleeve a sealing plate a fixedly installed on the upper end of the sleeve a for sealing the upper opening of the mounting cylinder, a spring a sleeve a sleeve a sleeve a sleeve a sleeve a sleeve a sleeve a sleeve abutting against the sealing plate a, and the other end of the spring a abutting against the bracket a, and a top block installed at the bottom of the cylinder a.

[0013] Preferably, an annular sealing gasket a is fixedly installed at the end of the sealing plate a away from the sleeve a.

[0014] Preferably, the top block is rotatably connected to the cylinder a.

[0015] Preferably, a vertical branch pipe is fixedly installed at the lower end of the cylinder a, and a collection bottle is threadedly connected to the lower end of the branch pipe. The end of the exhaust pipe is fixedly connected to the branch pipe and communicates with the middle section of the branch pipe.

[0016] Compared with related technologies, the low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extracts provided by this utility model has the following beneficial effects:

[0017] In this invention, the secondary filter cartridge serves as a backup adsorption unit. When the efficiency of the main filter cartridge decreases due to activated carbon adsorption saturation or impurity blockage, it automatically connects to auxiliary processing to avoid interruption of tail gas treatment and ensure continuous operation of the equipment. The main filter cartridge processes tail gas under normal operating conditions, while the secondary filter cartridge intervenes when the tail gas concentration suddenly increases or the main filter cartridge becomes blocked, enhancing adaptability to complex operating conditions. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extracts provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the structure of the exhaust pipe;

[0020] Figure 3 for Figure 1 The diagram shows the structure of the main filter cartridge.

[0021] Figure 4 for Figure 1 The diagram shows the structure of the secondary filter cartridge;

[0022] Figure 5 for Figure 2 The diagram shows the structure of the closed structure.

[0023] Figure 6 for Figure 2 The diagram shows the structural schematic of the pressure structure.

[0024] The diagram is labeled as follows: 1. Exhaust pipe; 2. Mounting cylinder; 3. Branch pipe; 4. Collection bottle; 5. Main filter cylinder; 51. Cylinder body a; 52. Cylinder cover a; 53. Baffle a; 54. Top block; 6. Secondary filter cylinder; 61. Cylinder body b; 62. Cylinder cover b; 63. Baffle b; 7. Enclosed structure; 71. Support a; 72. Fixing rod a; 73. Sleeve a; 74. Spring a; 75. Sealing plate a; 76. Annular sealing gasket a; 8. Pressure structure; 81. Support b; 82. Sleeve b; 83. Fixing rod b; 84. Sealing plate b; 85. Spring b; 86. Annular sealing gasket b; 9. Connecting cylinder. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages 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.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figures 1 to 6 This utility model provides a low-temperature distillation and concentration device for traditional Chinese medicine alcohol extract. The device includes: an exhaust pipe 1, an installation cylinder 2 installed on one side of the exhaust pipe 1, and the bottom of the installation cylinder 2 communicating with the exhaust pipe 1; a vertical branch pipe 3 fixedly installed at the lower end of the cylinder body a51, and a collection bottle 4 threadedly connected to the lower end of the branch pipe 3; the end of the exhaust pipe 1 fixedly connected to the branch pipe 3 and communicating with the middle section of the branch pipe 3; a main filter cylinder 5 for filtering tail gas is installed on the installation cylinder 2; a vertical docking cylinder 9 is also fixedly installed in the middle section of the exhaust pipe 1, and the docking cylinder 9 is communicating with the exhaust pipe 1; a secondary filter cylinder 6 is installed on the docking cylinder 9; and a pressure structure 8 is installed in the docking cylinder 9.

[0028] In this invention, the exhaust pipe 1 and its related components are installed in the middle and rear section of the tail gas treatment system of the low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extract. It is an activated carbon adsorption device. Both the main filter cylinder 5 and the auxiliary filter cylinder 6 are filled with activated carbon. The main filter cylinder 5 primarily uses activated carbon to adsorb and treat the tail gas, ensuring it meets emission standards before discharge. The auxiliary filter cylinder 6 is used when excessive impurities adsorbed by the activated carbon inside the main filter cylinder 5 affect the exhaust, causing increased internal pressure. The pressure structure 8 opens the bottom opening of the connecting cylinder 9, allowing the auxiliary filter cylinder 6 to assist in activated carbon adsorption and exhaust. The cylinder body a51 is a component of the main filter cylinder 5, through which the tail gas enters the activated carbon... Before the activated carbon adsorption device, it is necessary to pass through a condensation recovery device (to reduce the temperature of the exhaust gas and recover some ethanol) and a pre-filter (to remove liquid droplets and particulate matter) to avoid the activated carbon from being blocked by impurities and reducing the adsorption efficiency. The location of the adsorption unit: The activated carbon adsorption device is usually installed in the middle and later stages of the exhaust gas treatment system, that is, in the process of "condensation recovery → pretreatment filtration → activated carbon adsorption → emission", to ensure that the exhaust gas comes into contact with the activated carbon at a lower temperature and in a clean state. The front part of the exhaust pipe 1 has an inverted U-shaped design to prevent the backflow of residual liquid or impurities. The vertically set branch pipe 3 can guide the residual liquid or impurities in the exhaust gas to the collection bottle 4 for collection, which is convenient for subsequent treatment.

[0029] The pressure structure 8 includes a bracket b81 fixedly installed inside the docking cylinder 9. A sleeve b82 facing the exhaust pipe 1 is fixedly installed on the bracket b81. A sealing plate b84 for sealing the bottom of the docking cylinder 9 is installed in the docking cylinder 9. A fixing rod b83 inserted into the sleeve b82 is fixedly installed on the sealing plate b84. A spring b85 with one end abutting against the bracket b81 is sleeved on the sleeve b82, and the other end of the spring b85 abuts against the sealing plate b84.

[0030] It should be noted that when the activated carbon in the main filter cartridge 5 becomes clogged due to excessive adsorption of impurities, the pressure inside the exhaust pipe 1 and the upstream equipment of the exhaust gas treatment system increases. This increases the pressure, which will push open the sealing plate b84 in the pressure structure 8. The connecting cylinder 9 connects the secondary filter cartridge 6 to the exhaust pipe 1. The secondary filter cartridge 6 works in conjunction with the main filter cartridge 5 to perform activated carbon adsorption in the exhaust gas treatment system, preventing excessive internal pressure from damaging some equipment in the exhaust gas treatment system. At the same time, the use of the secondary filter cartridge 6 in conjunction with the main filter cartridge 5 can also ensure the efficiency of activated carbon adsorption in the exhaust gas treatment system. Under normal circumstances, the spring b85 applies a force to the sealing plate b84, ensuring that the sealing plate b84 closes the lower opening of the connecting cylinder 9 under normal operating conditions. The secondary filter cartridge 6 is in a stopped state, and the pressure inside the exhaust pipe 1 is... When the pressure increases to a certain level, the internal pressure will compress the sealing plate b84, compress the spring b85, and cause the fixing rod b83 to slide into the sleeve b82. The lower opening of the docking cylinder 9 will open, and the exhaust gas will enter the auxiliary filter cylinder 6 through the docking cylinder 9 for activated carbon adsorption treatment. The main filter cylinder 5 routinely uses activated carbon to adsorb the exhaust gas, ensuring that impurities such as ethanol and chemical mist in the exhaust gas are effectively removed, so that the exhaust gas emissions meet environmental protection standards. The auxiliary filter cylinder 6 serves as a backup adsorption unit. When the efficiency of the main filter cylinder 5 decreases due to activated carbon adsorption saturation or impurity blockage, it will automatically connect to auxiliary treatment to avoid interruption of exhaust gas treatment and ensure continuous operation of the equipment. The main filter cylinder 5 processes the exhaust gas under normal operating conditions, while the auxiliary filter cylinder 6 intervenes when the exhaust gas concentration suddenly increases or the main filter cylinder 5 becomes blocked, enhancing adaptability to complex operating conditions.

[0031] Preferably, an annular sealing gasket b86 is fixedly installed at the end of the sealing plate b84 away from the sleeve b82; the annular sealing gasket b86 improves the sealing effect of the sealing plate b84 on the bottom opening of the docking cylinder 9.

[0032] The main filter cartridge 5 includes a cylinder a51 threadedly connected to the mounting cylinder 2, a cylinder cover a52 threadedly connected to the cylinder a51, and baffles a53 installed on both the cylinder cover a52 and the bottom of the cylinder a51. The secondary filter cartridge 6 includes a cylinder b61 threadedly connected to the docking cylinder 9, a cylinder cover b62 threadedly connected to the cylinder b61, and baffles b63 installed on both the cylinder cover b62 and the bottom of the cylinder b61. The cylinder a51 of the main filter cartridge 5 is threadedly connected to the mounting cylinder 2, facilitating its installation and disassembly. The threaded cylinder cover a52 also facilitates the filling of activated carbon into the cylinder a51 or the replacement of activated carbon. The baffles a53 limit the movement of the activated carbon and ensure the emission of exhaust gas. Similarly, the cylinder b61 of the secondary filter cartridge 6, threadedly connected to the docking cylinder 9, is easy to install and disassemble. The threaded cylinder cover b62 facilitates the filling of activated carbon or the replacement of activated carbon. The baffles b63 ensure the emission of exhaust gas and limit the movement of activated carbon.

[0033] In this embodiment, please refer to Figure 1 and Figure 6 The installation cylinder 2 is equipped with a closed structure 7 that cooperates with the main filter cylinder 5. The closed structure 7 includes a bracket a71 fixedly installed on the inner wall of the installation cylinder 2. A fixing rod a72 facing the cylinder body a51 is fixedly installed on the bracket a71. A sleeve a73 is sleeved on the fixing rod a72, and a sealing plate a75 for sealing the upper opening of the installation cylinder 2 is fixedly installed on the upper end of the sleeve a73. A spring a74 with one end abutting against the sealing plate a75 is sleeved on the sleeve a73, and the other end of the spring a74 abuts against the bracket a71. A top block 54 is installed at the bottom of the cylinder body a51.

[0034] It should be noted that when the main filter cartridge 5 is normally installed on the mounting cartridge 2, its bottom top block 54 will push open the sealing plate a75, allowing the mounting cartridge 2 to be in a clear state. This means that exhaust gas can sequentially pass through the exhaust pipe 1, branch pipe 3, and mounting cartridge 2 into the main filter cartridge 5 for activated carbon adsorption treatment. When the efficiency of the main filter cartridge 5 decreases due to activated carbon saturation or impurity blockage, the main filter cartridge 5 can be disassembled to replace the activated carbon. By rotating the main filter cartridge 5 away from the mounting cartridge 2, the sealing plate a75, under the elastic force of the spring a74, will press against the upper opening of the mounting cartridge 2, sealing it. Manual closure of the exhaust pipe 1 is not required. 5. After replacing the activated carbon, align its bottom with the upper end of the mounting cylinder 2 and screw it in. As the main filter cylinder 5 rotates, the top block 54 at its bottom will gradually press against the sealing plate a75. The upper end of the fixing rod a72 will gradually extend into the depth of the sleeve a73. The fixed bracket a71, together with the ever-approaching sealing plate a75, will press against the spring a74, putting it in a compressed state. That is, when the main filter cylinder 5 is disassembled, the sealing structure 7 automatically blocks the mounting cylinder 2, keeping the front section of the exhaust pipe 1 (such as the condensate recovery device and the primary filter) in a sealed state. The auxiliary filter cylinder 6 takes over the work without stopping the machine or emptying the entire system, reducing production interruption losses.

[0035] Preferably, an annular sealing gasket a76 is fixedly installed at the end of the sealing plate a75 away from the sleeve a73; the annular sealing gasket a76 improves the sealing effect of the sealing plate a75 on the upper opening of the mounting cylinder 2.

[0036] Preferably, the top block 54 is rotatably connected to the cylinder a51; when the main filter cylinder 5 is connected to the mounting cylinder 2, the friction between the top block 54 and the sealing plate a75 is reduced, making it easier to operate.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A low-temperature distillation and concentration device for traditional Chinese medicine alcohol extract, comprising an exhaust pipe (1), wherein an installation cylinder (2) is installed on one side of the exhaust pipe (1), and the bottom of the installation cylinder (2) is connected to the exhaust pipe (1), characterized in that: The mounting cylinder (2) is equipped with a main filter cylinder (5) for filtering exhaust gas. A vertical docking cylinder (9) is also fixedly installed in the middle section of the exhaust pipe (1), and the docking cylinder (9) is connected to the exhaust pipe (1). A secondary filter cylinder (6) is installed on the docking cylinder (9), and a pressure structure (8) is installed in the docking cylinder (9). The pressure structure (8) includes a bracket b (81) fixedly installed inside the docking cylinder (9), a sleeve b (82) facing the exhaust pipe (1) fixedly installed on the bracket b (81), a sealing plate b (84) for sealing the bottom of the docking cylinder (9) is installed in the docking cylinder (9), a fixing rod b (83) inserted into the sleeve b (82) is fixedly installed on the sealing plate b (84), and a spring b (85) with one end abutting against the bracket b (81) is sleeved on the sleeve b (82), and the other end of the spring b (85) abuts against the sealing plate b (84).

2. The low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extract according to claim 1, characterized in that, An annular sealing gasket b (86) is fixedly installed at the end of the sealing plate b (84) away from the sleeve b (82).

3. The low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extract according to claim 1, characterized in that, The main filter cylinder (5) includes a cylinder body a (51) threadedly connected to the mounting cylinder (2), a cylinder cover a (52) threadedly connected to the cylinder body a (51), and a baffle a (53) installed on the cylinder cover a (52) and the bottom of the cylinder body a (51).

4. The low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extract according to claim 3, characterized in that, The secondary filter cartridge (6) includes a cylinder body b (61) threadedly connected to the docking cylinder (9), a cylinder cover b (62) threadedly connected to the cylinder body b (61), and a baffle b (63) installed on the cylinder cover b (62) and the bottom of the cylinder body b (61).

5. The low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extract according to claim 3, characterized in that, The mounting cylinder (2) is equipped with a closed structure (7) that cooperates with the main filter cylinder (5). The closed structure (7) includes a bracket a (71) fixedly installed on the inner wall of the mounting cylinder (2). A fixing rod a (72) facing the cylinder body a (51) is fixedly installed on the bracket a (71). A sleeve a (73) is sleeved on the fixing rod a (72), and a sealing plate a (75) for sealing the upper opening of the mounting cylinder (2) is fixedly installed on the upper end of the sleeve a (73). A spring a (74) with one end abutting against the sealing plate a (75) is sleeved on the sleeve a (73), and the other end of the spring a (74) abuts against the bracket a (71). A top block (54) is installed at the bottom of the cylinder body a (51).

6. The low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extract according to claim 5, characterized in that, An annular sealing gasket a (76) is fixedly installed at the end of the sealing plate a (75) away from the sleeve a (73).

7. The low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extract according to claim 5, characterized in that, The top block (54) is rotatably connected to the cylinder a (51).

8. The low-temperature distillation and concentration equipment for traditional Chinese medicine alcohol extract according to claim 5, characterized in that, A vertical branch pipe (3) is fixedly installed at the lower end of the cylinder a (51), and a collection bottle (4) is threadedly connected to the lower end of the branch pipe (3). The end of the exhaust pipe (1) is fixedly connected to the branch pipe (3) and communicates with the middle section of the branch pipe (3).