An apparatus for extraction

Abstract

The utility model relates to chemical experiment equipment technical field, concretely relates to a device of extraction, including the shaking table main part, is equipped with the base of the inclined angle on the shaking table main part, the base is fixed with the frame, two layers spring groups on the frame include first spring group and second spring group, first spring group is the net -like structure that horizontal spring and longitudinal spring interlaced arrangement formed and spreads the frame, second spring group includes horizontal spring and longitudinal spring, horizontal spring spreads the 3 / 4 area of frame, longitudinal spring spreads the whole frame, the 1 / 4 area of frame is equipped with a plurality of fractional distillation flask positioning frame near the top of inclined plane, the supporting leg of fractional distillation flask positioning frame is connected on the base after passing through the net -like gap of first spring group, the top of fractional distillation flask positioning frame is equipped with the clamping groove matched with fractional distillation flask bottle middle part protruding, the device combines manual fractional distillation flask with automatic shaking table, solves the problem that manual operation fatigue, automatic equipment cost is high and cannot multiple index universal in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of chemical experimental equipment technology, specifically to an extraction device. Background Technology

[0002] Currently, laboratory extraction mainly relies on two types of equipment:

[0003] 1. Manual separatory funnel: For example, in the preparation of oil and volatile phenol samples, each extraction requires vigorous shaking for 2 minutes. The extraction process relies entirely on the operator holding the separatory funnel for a long time and at a high frequency to repeatedly shake and invert it. Only one or a very small number of samples can be processed per batch. Processing large batches of samples requires a lot of manpower and time, resulting in extremely low efficiency. The continuous mechanical shaking action can easily lead to fatigue or even strain in the operator's arms, shoulders, and neck muscles. This is especially true when performing multiple batches of extraction tasks over a long period of time, which is a severe test of the operator's physical strength. The intensity, frequency, amplitude, and duration of shaking depend entirely on the operator's personal experience and physical condition. It is difficult to ensure the consistency of shaking parameters between different operators, or even between different batches operated by the same operator. This leads to large fluctuations in extraction efficiency and two-phase separation effect, and it is difficult to control the extraction uniformity between samples. Ultimately, this seriously affects the repeatability and comparability of experimental results. There is also a risk of accidental slippage and breakage when holding glassware and shaking it vigorously.

[0004] 2. Automatic extraction instrument: Although it achieves automated oscillation, it has significant drawbacks:

[0005] The equipment has a complex structure and is difficult to disassemble and maintain; it is only compatible with a single detection index (e.g., UV oil analyzers and infrared oil analyzers cannot be used together due to differences in detection limits); multiple indicators require the purchase of multiple devices, which is costly.

[0006] Especially in environmental testing scenarios where parameters need to be frequently changed (such as oils, volatile phenols, anionic surfactants, etc.), existing technologies cannot simultaneously achieve high efficiency, economy, and multifunctionality. Therefore, there is an urgent need for an extraction device that integrates the flexibility of a manual separatory funnel, the high efficiency of automated equipment, and supports rapid switching between multiple parameters. Utility Model Content

[0007] The purpose of this invention is to provide an extraction apparatus to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an extraction device, comprising a shaking bed body, the shaking bed body being a rectangular frame structure, a base with an inclination angle of 20-45° to the horizontal plane on the shaking bed body, a frame fixedly mounted on the base, and two layers of spring groups on the frame, the two layers of spring groups including a lower first spring group and an upper second spring group, the first spring group being a mesh structure formed by alternating horizontal and vertical springs and covering the entire frame, the second spring group including horizontal springs and vertical springs, the horizontal springs covering 3 / 4 of the frame area, the vertical springs covering the entire frame, a plurality of dispensing funnel positioning frames being provided in the 1 / 4 area near the top of the inclined surface of the frame, the dispensing funnel positioning frames including legs, the legs passing through the mesh gaps of the first spring group and connected to the base, the top of the dispensing funnel positioning frame having a groove matching the protrusion in the middle of the dispensing funnel bottle, the radius of curvature of the groove being 3-6 cm.

[0009] Preferably, the upper and lower parts of the frame are respectively provided with arrayed through holes, the first spring group is suspended from the through hole in the lower part of the frame by a hook, and the second spring group is suspended from the through hole in the upper part of the frame by a hook.

[0010] Preferably, the distance between each transverse spring in the first spring group is 1-1.5cm, and the distance between each longitudinal spring is 1-1.5cm; the distance between each transverse spring in the second spring group is 1-1.5cm, and the distance between each longitudinal spring is 1.5-3cm.

[0011] Preferably, when the separatory funnel positioning frame and separatory funnel bottle are not installed, the vertical distance between the first spring group and the second spring group is 3-5 cm.

[0012] Preferably, the base has dimensions of 40-80cm in length and 30-60cm in width, and the inclination angle of the base is 30°.

[0013] Preferably, the vertical height of the outrigger is 5-15cm.

[0014] Compared with existing technologies, this invention provides an extraction device with the following advantages: By integrating a separatory funnel flask into an automated shaking bed, the device completely replaces the traditional manual shaking operation with mechanical vibration. This significantly improves sample processing efficiency, enables batch synchronous extraction, and effectively eliminates operator arm fatigue caused by prolonged operation. Simultaneously, the vibration speed and time can be precisely programmed for control, significantly improving the repeatability and data reproducibility of experimental results. This invention cleverly solves the problem of the lack of versatility in automated extraction equipment: it adopts a double-layer spring structure with a dense lower mesh and a slightly looser upper longitudinal layer, combined with a positioning groove whose radius of curvature matches the protrusion of the separatory funnel. This securely clamps and buffers separatory funnel flasks of different specifications available on the market, allowing users to quickly and conveniently switch between various detection indicators (such as oils, volatile phenols, anionic surfactants, etc.) simply by changing the funnel flask itself containing different samples and solvents. This completely avoids the dilemma of repeatedly purchasing expensive dedicated equipment for different detection items, achieving true multi-functional versatility. The safety of the apparatus has been significantly improved: the inclined base design effectively reduces the risk of liquid splashing from the valve at the top of the separatory funnel, while the PTFE vent valve of the separatory funnel bottle can automatically and safely release the pressure inside the bottle during shaking, without the need for manual depressurization during experimental interruption. This not only ensures the safety of the operator, but also avoids potential sample loss or contamination. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view of the structure of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the structure of this utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the through-hole structure of this utility model;

[0020] Figure 6 This is an isometric schematic diagram of the separatory funnel positioning frame of this utility model;

[0021] Figure 7 This is a front view of the separatory funnel positioning frame of this utility model;

[0022] Figure 8 This is a schematic diagram of the separatory funnel bottle structure involved in this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Shaking bed body; 2. Base; 3. Frame; 4. First spring group; 5. Second spring group; 6. Separating funnel positioning frame; 61. Support leg; 7. Separating funnel bottle; 71. Protrusion; 8. Slot; 9. Through hole; 10. Vent valve; 11. Discharge valve. Detailed Implementation

[0024] The technical solutions of the present utility model will now be described with reference to the accompanying drawings in the embodiments of the present utility model:

[0025] like Figure 1-8 As shown, this utility model provides an extraction device. The main structure of the device includes a shaking bed body 1, which serves as the power and support base. The shaking bed body 1 is designed as a robust rectangular frame structure to ensure a stable platform during oscillation. The shaking bed body 1 is prior art, with a specification model of HY-4.

[0026] A base 2 is fixedly installed on the upper surface of the shaking table body 1. This base 2 is not placed horizontally, but is designed to be tilted at a specific angle to the horizontal plane, ranging from 20° to 45°, with a preferred tilt angle of 30°. The dimensions of the base 2 need to balance practicality and space efficiency. The dimensions of the base 2 are 40-80cm in length × 30-60cm in width, preferably 60cm in length × 50cm in width, to accommodate the placement requirements of different numbers of separating funnels. The tilting design is one of the key safety features of this device. Its core function is to significantly reduce the risk of accidental liquid splashing caused by liquid sloshing impacting the vent valve at the top of the separating funnel during shaking, thus ensuring the safety of operators and the cleanliness of the experimental environment.

[0027] A frame 3 is fixedly installed on the base 2, and the frame 3 is the core skeleton of the entire fixed structure. Two independent spring assemblies are set on the frame 3, forming the core buffer and fixing system.

[0028] The two-layer spring group includes a lower first spring group 4 and an upper second spring group 5. The lower first spring group 4 is a mesh structure formed by the alternating arrangement of transverse and longitudinal springs and covers the frame 3. The distance between each transverse spring in the first spring group 4 is 1-1.5cm, preferably 1cm, and the distance between each longitudinal spring is 1-1.5cm, preferably 1cm, forming a high-density support mesh.

[0029] The upper second spring group 5 also includes transverse and longitudinal springs. The transverse springs are laid in 3 / 4 of the frame 3, and the longitudinal springs cover the entire frame 3. The distance between each transverse spring in the second spring group 5 is 1-1.5cm, preferably 1cm, and the distance between each longitudinal spring is 1.5-3cm, preferably 2cm. This differentiated design (dense mesh in the lower layer and slightly sparser longitudinal mesh in the upper layer) aims to provide a more optimized constraint and cushioning effect.

[0030] The upper and lower parts of frame 3 are respectively provided with arrayed through holes 9. The first spring assembly 4 is precisely suspended from the through hole 9 in the lower part of frame 3 by hooks at its ends. Correspondingly, the second spring assembly 5 is suspended from the through hole 9 in the upper part of frame 3 by hooks. This suspension design is crucial. It not only ensures the firmness of the spring assembly installation, but more importantly, it gives the entire system excellent elastic buffering capacity, which can effectively absorb and disperse the vibration energy transmitted by the shaking bed and prevent rigid impact on the separatory funnel bottle. At the same time, this design also greatly facilitates the disassembly, cleaning, maintenance, or replacement of the spring assemblies.

[0031] With the separatory funnel positioning bracket 6 and separatory funnel bottle 7 not installed, the vertical distance between the first spring group 4 (lower layer) and the second spring group 5 (upper layer) is 3-5 cm, preferably 4 cm. This reserved space is key to the buffer mechanism, providing the necessary space for the separatory funnel's elastic up-and-down movement during oscillation, preventing the bottle from colliding hard with the upper spring during violent shaking, and ensuring a smooth and safe oscillation process.

[0032] Multiple dispensing funnel positioning frames 6 are provided in the top 1 / 4 area of ​​the inclined surface on the frame 3. Each dispensing funnel positioning frame 6 includes a support leg 61 with a vertical height of 5-15cm, preferably 8cm. The support leg 61 passes through the mesh gap of the first spring assembly 4 and is connected to the base 2. The support leg 61 is connected to the base 2 by bolts or glue. The bolts extend upwards from the bottom of the base 2 and are fixed to the support leg 61, ensuring the absolute stability of the dispensing funnel positioning frame 6 and preventing displacement during vibration. The top of the dispensing funnel positioning frame 6 has a groove 8 that matches the central protrusion 71 of the dispensing funnel bottle 7. The radius of curvature of the groove 8 is 3-6cm, preferably 4.5cm. The function of the groove 8 is precise positioning: when the dispensing funnel bottle 7 is placed on it, the central protrusion 71 fits precisely into the groove 8, effectively preventing the dispensing funnel bottle 7 from sliding down the inclined surface due to gravity or vibration.

[0033] The top of the separatory funnel flask 7 is equipped with a vent valve 10 made of polytetrafluoroethylene (PTFE). This inert material can safely and automatically release volatile gases or internal pressure generated during the extraction process, and it does not easily adsorb organic matter, thus avoiding cross-contamination. The bottom of the separatory funnel flask 7 is equipped with a liquid discharge valve 11 to control the outflow of liquid.

[0034] Operating procedures:

[0035] 1. Placement of the funnel: Carefully place the separatory funnel flask 7, containing the sample to be extracted and an appropriate amount of extraction solvent (e.g., hexane for oil detection), onto the separatory funnel positioning frame 6. Ensure that the protrusion 71 in the middle of the flask is fully and securely embedded in the slot 8 at the top of the separatory funnel positioning frame 6, with the top of the separatory funnel flask 7 resting on the edge of the frame 3. At this point, the transverse springs of the upper second spring group 5 hold the flask body below the central protrusion 71, and the longitudinal springs of the upper second spring group 5 hold the sides of the central protrusion 71, while the dense mesh of the lower first spring group 4 provides bottom support and lateral restraint. The double-layer spring groups work together to firmly restrain the separatory funnel flask 7 on the inclined base 2, while providing all-around elastic cushioning.

[0036] 2. Close the valve: Confirm that the bottom drain valve 11 of the separatory funnel bottle 7 is closed.

[0037] 3. Start the shaking: Start the shaking bed body 1. The drive mechanism of the shaking bed body 1 will drive the entire base 2 (along with its frame 3, double-layer spring assembly, separatory funnel positioning frame 6, and separatory funnel bottle 7) to shake rhythmically from side to side. Set appropriate shaking parameters through the control panel, such as shaking time (usually 5-10 minutes) and shaking speed (e.g., 250 rpm). Mechanical shaking completely replaces traditional manual shaking, enabling simultaneous processing of batch samples.

[0038] 4. Automatic pressure relief and shutdown: During the shaking process, the pressure that may be generated inside the bottle due to solvent evaporation or reaction will be automatically and safely released slowly through the PTFE vent valve 10 at the top, without the need for manual intervention, ensuring operational safety. After the preset shaking time is reached, the shaking bed body 1 will automatically stop running.

[0039] 5. Settling and Separation: Allow the device to stand for 1-2 minutes to allow the emulsion layer formed after shaking to be fully broken down, achieving clear separation of the extract phase (organic phase) and the aqueous phase.

[0040] 6. Collect the extract: Carefully open the drain valve 11 at the bottom of the separatory funnel flask 7 to collect the lower layer of extract (or aqueous phase, depending on the density of the target analyte and solvent) into the receiving container for subsequent detection and analysis.

[0041] 7. Switching Indicators: When different indicators need to be detected (e.g., switching from "oils" to "volatile phenols"), simply replace the sample with another separatory funnel bottle 7 containing the corresponding extraction solvent, place it on the separatory funnel positioning rack 6, and repeat steps 1-6. No replacement or adjustment of the main equipment is required, demonstrating excellent versatility and flexibility for multiple indicators.

[0042] The driving core of the shaking bed body 1 lies in its internal motor and transmission mechanism, which can stably drive the base 2 to shake left and right as required by the design, providing uniform and controllable mechanical energy for the entire extraction process.

[0043] This device boasts outstanding cost-effectiveness: its core lies in the direct reuse of separating funnel bottles, requiring only innovative design modifications to the shaking bed's fixing structure (double-layer spring assembly and separating funnel positioning frame). Therefore, the overall manufacturing cost is significantly lower than that of dedicated automatic extraction instruments, typically only 10%-20% of the cost. Furthermore, its structure is relatively simple, making maintenance more convenient and efficient. This invention successfully integrates the flexibility and low cost of manual separating funnels with the high efficiency and reproducibility of automated equipment, while also considering operational safety and the universal requirements for multi-index detection. It provides an efficient, economical, safe, and flexible optimal solution for laboratory extraction operations.

[0044] The above embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. An extraction apparatus comprising a shaking bed body (1), characterized in that: The main body (1) of the rocking bed is a rectangular frame structure. A base (2) with an inclination angle of 20-45° to the horizontal plane is provided on the main body (1). A frame (3) is fixedly installed on the base (2). Two layers of springs are provided on the frame (3). The two layers of springs include a lower first spring group (4) and an upper second spring group (5). The first spring group (4) is a mesh structure formed by alternating horizontal and vertical springs and covers the entire frame (3). The second spring group (5) includes horizontal springs and vertical springs. Springs are laid in 3 / 4 of the frame (3), with longitudinal springs covering the entire frame (3). Multiple dispensing funnel positioning frames (6) are provided in the 1 / 4 area near the top of the inclined surface of the frame (3). Each dispensing funnel positioning frame (6) includes a support leg (61). The support leg (61) passes through the mesh gap of the first spring group (4) and is connected to the base (2). The top of the dispensing funnel positioning frame (6) is provided with a slot (8) that matches the protrusion (71) in the middle of the dispensing funnel bottle (7). The radius of curvature of the slot (8) is 3-6 cm.

2. The extraction apparatus according to claim 1, characterized in that: The upper and lower parts of the frame (3) are respectively provided with array-type through holes (9). The first spring group (4) is suspended by a hook in the through hole (9) of the lower part of the frame (3), and the second spring group (5) is suspended by a hook in the through hole (9) of the upper part of the frame (3).

3. The extraction apparatus according to claim 2, characterized in that: The distance between each transverse spring of the first spring group (4) is 1-1.5cm, and the distance between each longitudinal spring is 1-1.5cm; the distance between each transverse spring of the second spring group (5) is 1-1.5cm, and the distance between each longitudinal spring is 1.5-3cm.

4. The extraction apparatus according to claim 1, characterized in that: Without the separatory funnel positioning frame (6) and separatory funnel bottle (7) installed, the vertical distance between the first spring assembly (4) and the second spring assembly (5) is 3-5 cm.

5. The extraction apparatus according to claim 1, characterized in that: The base (2) has dimensions of 40-80cm in length and 30-60cm in width, and the inclination angle of the base (2) is 30°.

6. The extraction apparatus according to claim 1, characterized in that: The vertical height of the outrigger (61) is 5-15cm.

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