A vortex stirring extractor for detecting acid value of oil and fat products

Abstract

This invention provides a vortex stirring extractor for acid value detection of oil and fat products, belonging to the technical field of stirring devices. It includes a stirring cup, a first stirrer, and a second stirrer. The stirring cup includes a cup body and a lid, the lid sealing the opening of the cup body. The first stirrer is rotatably mounted on the lid and includes a first rotating shaft and multiple stirring elements arranged radially around the first rotating shaft. The second stirrer is rotatably mounted on the base of the cup body, located below the first stirrer. The second stirrer includes a second rotating shaft and multiple stirring blades arranged radially around the second rotating shaft. This vortex stirring extractor for acid value detection of oil and fat products utilizes the rotation of the stirring blades and stirring elements to agitate the sample within the cup, accelerating the sample mixing efficiency and ensuring uniform mixing.

Description

Technical Field

[0001] This utility model belongs to the technical field of stirring devices, and more specifically, it relates to a vortex stirring extractor for detecting the acid value of oil products. Background Technology

[0002] Acid value refers to the content of free fatty acids in vegetable oils, expressed as the number of milligrams of potassium hydroxide per gram of oil. Testing acid value can reflect the degree of rancidity in oils; using rancid oils can cause poisoning symptoms.

[0003] In the process of acid value testing, the oil extraction rate directly depends on the accuracy of the test results. In the testing of oil products, especially oil-encapsulated products, the encapsulated oil must be completely broken down to extract the encapsulated oil. Only in this way can the acid value data be the most accurate.

[0004] When using spectrophotometry to determine acid value, the pretreatment during oil extraction is quite complex, and thorough mixing is required during extraction. Since the solution becomes viscous after the sample is added to the extract, the stirring effect of a magnetic stirrer is unsatisfactory. Therefore, manual stirring is usually required, which takes a long time and can cause oxidation of the oil, affecting the test results. Furthermore, manual stirring results in poor uniformity and is time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this invention is to provide a vortex stirring extractor for acid value detection of oil products, which aims to improve stirring efficiency and ensure uniform mixing.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a vortex stirring extractor for acid value detection of oil products, comprising:

[0007] A mixing cup, comprising a cup body and a cup lid, the cup lid being used to seal the opening of the cup body;

[0008] A first stirrer is rotatably mounted on the cup lid. The first stirrer includes a first rotating shaft and a plurality of stirring elements, which are arranged radially around the first rotating shaft.

[0009] The second stirrer is rotatably mounted on the base of the cup body, and is located below the first stirrer; the second stirrer includes a second rotating shaft and a plurality of stirring blades, which are arranged radially around the second rotating shaft.

[0010] In another embodiment of this application, the stirring component includes:

[0011] The stirring rod is vertically connected to the first rotating shaft;

[0012] Movable fan blades are fitted onto the stirring rod, and the movable fan blades have the freedom to rotate around the stirring rod.

[0013] In another embodiment of this application, a plurality of movable fan blades are provided on the same stirring rod, and two adjacent movable fan blades on the same stirring rod are spaced apart.

[0014] In another embodiment of this application, the active fan blade has multiple blades.

[0015] In another embodiment of this application, the plurality of stirring blades are arranged in layers along the axial direction of the second rotation axis.

[0016] In another embodiment of this application, the base is provided with a power supply cavity, in which a rotary motor and a battery are disposed; the output end of the rotary motor is connected to the second rotating shaft, and the battery is electrically connected to the rotary motor.

[0017] In another embodiment of this application, the outer periphery of the cup body is provided with a heat insulation layer.

[0018] In another embodiment of this application, a cooler is provided at the lower end of the cup lid, which is used to cool the solution inside the cup; correspondingly, a temperature sensor is provided inside the cup.

[0019] In another embodiment of this application, a sealing ring is provided between the cup body and the cup lid.

[0020] In another embodiment of this application, a support base is also included, wherein a lifting assembly is provided on the support base, the lifting assembly being used to drive the cup lid to open and close; the lifting assembly includes:

[0021] A support frame is longitudinally disposed on the support base, and the upper end of the support frame extends to the top of the cup body;

[0022] A lifting drive is located on the upper part of the support frame, and the free end of the lifting drive is connected to the upper end of the cup lid; the lifting drive has a longitudinal degree of freedom, and the longitudinal extension and retraction of the lifting drive drives the cup lid to move up and down.

[0023] The beneficial effects of the vortex stirring extractor for acid value detection of oil products provided by this utility model are as follows: Compared with the prior art, the vortex stirring extractor for acid value detection of oil products of this utility model utilizes the rotation of stirring blades and stirring components to agitate the sample in the container, accelerating the mixing efficiency of the sample in the container, while improving the mixing efficiency and ensuring the uniformity of mixing; the second stirrer starts first to rotate the sample, which can initially destroy the outer layer structure of the sample, allowing some of the embedded oil to be exposed; when the sample becomes viscous, the intervention of the first stirrer can deeply mix the viscous sample, further breaking the embedded structure, allowing the embedded oil to be extracted more fully, greatly improving the oil extraction rate, thereby ensuring the accuracy of the subsequent acid value detection results. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of the stirring cup provided by this utility model;

[0026] Figure 2 A top view of the cup body provided by this utility model;

[0027] Figure 3 A bottom view of the cup lid provided by this utility model;

[0028] Figure 4 A front view of the movable fan blade provided in one embodiment of the present invention;

[0029] Figure 5 A front view of the movable fan blades provided in another embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of a vortex stirring extractor for acid value detection of oil products provided in one embodiment of the present invention.

[0031] Figure 7 This is a schematic diagram of a vortex stirring extractor for acid value detection of oil products, provided as another embodiment of the present invention.

[0032] In the diagram: 1. Cup body; 2. Insulation layer; 3. Cup lid; 4. Control panel; 5. First rotating shaft; 6. Stirring rod; 7. Movable fan blade; 8. Base; 9. Power supply chamber; 10. Cover plate; 11. Battery; 12. Second rotating shaft; 13. Stirring fan blade; 14. Temperature sensor; 15. Cooler; 16. Protrusion; 17. Support base; 18. Vertical bracket; 19. Horizontal bracket; 20. Lifting drive; 21. Sub-bracket; 22. Extension rod; 23. Longitudinal guide rail. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1 to 7 The present invention provides a vortex stirring extractor for acid value detection of oil and fat products. The vortex stirring extractor for acid value detection of oil and fat products includes a stirring cup, a first stirrer, and a second stirrer. The stirring cup includes a cup body 1 and a cup lid 3, the cup lid 3 being used to seal the opening of the cup body 1. The first stirrer is rotatably mounted on the cup lid 3, and includes a first rotating shaft 5 and multiple stirring elements arranged radially around the first rotating shaft 5. The second stirrer is rotatably mounted on the base 8 of the cup body 1, and is located below the first stirrer. The second stirrer includes a second rotating shaft 12 and multiple stirring blades 13 arranged radially around the second rotating shaft 12.

[0035] When using the vortex stirring extractor for acid value detection of oil products provided by this utility model, the sample to be mixed is placed into the cup body 1, and then the cup mouth is sealed with the cup lid 3; at this time, the first stirrer enters the cup body 1 with the help of the cup lid 3.

[0036] After the cup body 1 is sealed, the second stirrer is turned on first. The second rotating shaft 12 rotates and drives multiple stirring blades 13 to rotate on the horizontal plane, stirring the sample at the bottom of the cup body 1. When the sample starts to rotate and becomes viscous, the first stirrer is turned on. The first rotating shaft 5 drives multiple stirring components to rotate, fully mixing the viscous sample in the cup body 1, so as to achieve the purpose of stirring evenly.

[0037] The vortex stirring extractor for acid value detection of oil products provided by this utility model has the following advantages compared with the prior art:

[0038] (1) Traditional manual stirring has a long stirring time, low stirring efficiency, and the mixing effect after stirring has errors. In this embodiment, a first stirrer and a second stirrer are set in the cup body 1. The sample in the cup body 1 is stirred by the rotation of the stirring blade 13 and the stirring component, which accelerates the mixing efficiency of the sample in the cup body 1, and at the same time improves the mixing efficiency of the sample and ensures the mixing uniformity.

[0039] (2) In this embodiment, the first stirrer and the second stirrer work together. First, the sample at the bottom of the cup 1 is stirred by the stirring blades to avoid residue at the bottom of the cup 1. At the same time, the originally stationary sample begins to rotate, breaking the initial aggregation state of the sample. When the sample starts to rotate and gradually becomes viscous under the action of the second stirrer, the first stirrer is turned on. The multiple stirring components driven by the first rotating shaft 5 can directly act on the viscous sample. Since the viscous sample has a certain rotational basis at this time, the stirring components can penetrate into it more efficiently and use rotation to fully cut and mix the sample. This avoids the problems of stirring resistance and uneven local force that may occur when the sample is too viscous and stationary. It realizes precise stirring of samples in different states and further improves stirring efficiency and shortens mixing time. In addition, the second stirrer is started first to rotate the sample, which can initially disrupt the outer layer structure of the sample and expose some of the embedded oils. When the sample becomes viscous, the intervention of the first stirrer can deeply mix the viscous sample, further break down the embedded structure, and allow the embedded oils to be extracted more fully, greatly improving the oil extraction rate and thus ensuring the accuracy of the subsequent acid value test results.

[0040] (3) Due to differences in manual operation by staff, the mixing time varies among different staff members; the longer the mixing time, the higher the oxidation level of the sample, which affects the accuracy of the detection. In this embodiment, a first stirrer and a second stirrer are used together to achieve mechanical stirring. The stirring time is short, the oxidation level of the sample is low, and the accuracy of the detection will be improved accordingly.

[0041] (4) In traditional manual stirring, the cup body 1 remains open throughout the stirring process, causing the sample inside the cup body 1 to continuously come into contact with fresh air, accelerating its oxidation. In this embodiment, by placing the first stirrer on the cup lid 3 and sealing the opening of the cup body 1 with the cup lid 3, fresh air can be further prevented from entering the cup body 1. Combined with mechanical stirring, this avoids the problem of oil oxidation caused by prolonged manual stirring, providing better pretreatment assurance for spectrophotometric detection of acid value. In addition, the cup lid 3 can prevent the sample from overflowing during stirring.

[0042] In this embodiment, the cup body 1 is made of a transparent material that does not react with oils, such as polytetrafluoroethylene. An insulation layer 2, also made of a transparent material such as aerogel, is wrapped around the outside of the cup body 1. Both the cup body 1 and the insulation layer 2 are made of transparent materials, allowing staff to observe the progress of the experiment. The cup lid 3 can be made of the same material as the cup body 1, and a sealing ring is provided between the cup lid 3 and the cup body 1. Optionally, a downwardly extending protrusion 16 is provided at the lower end of the cup lid 3, the outer diameter of which is smaller than the outer diameter of the cup lid 3. When the cup body 1 is closed, the protrusion 16 of the cup lid 3 extends into the inner cavity of the cup body 1, and a sealing ring is fitted around the outside of the protrusion 16, sealing the gap between the protrusion 16 and the inner wall of the cup body 1.

[0043] The cup body 1 can be customized in multiple sizes, such as 500ml, 1000ml, 1500ml, etc. The cross-section of the cup body 1 is circular for easy cleaning.

[0044] The first rotating shaft 5 mounted on the cup lid 3 is rotated by a drive motor, which is installed on the outside or inside of the cup lid 3. The output end of the drive motor is connected to the first rotating shaft 5 to drive the first rotating shaft 5 to rotate. The stirring components are fixedly connected to the first rotating shaft 5. When multiple stirring components are on the same horizontal plane, the horizontal plane where the multiple stirring components are located is perpendicular to the first rotating shaft 5.

[0045] The agitator can be either rod-shaped or fan-shaped. The agitator rotates with the first rotating shaft 5 to increase the mixing range covered by the first rotating shaft 5.

[0046] The second rotating shaft 12 is rotatably connected to the bottom of the cup body 1 and is coaxial with the first rotating shaft 5. A rotary motor is connected to the end of the second rotating shaft 12.

[0047] In some possible embodiments, please refer to Figure 1 , Figures 2 to 5 The stirring component includes a stirring rod 6 and a movable fan blade 7; the stirring rod 6 is vertically connected to the first rotating shaft 5; the movable fan blade 7 is sleeved on the stirring rod 6 and has the freedom to rotate around the stirring rod 6.

[0048] When the first stirrer is turned on, the first rotating shaft 5 begins to rotate, and the stirring rod 6, which is perpendicularly connected to the first rotating shaft 5, rotates accordingly. The movable blade 7, fitted onto the stirring rod 6, has the freedom to rotate around the stirring rod 6. Driven by the stirring rod 6 and resisted by the viscous sample inside the container 1, it both rotates with the stirring rod 6 as a whole and rotates around the stirring rod 6 itself. During the mixing process of the first stirrer with the viscous sample in the container 1, which has already begun to rotate under the action of the second stirrer, the stirring rod 6 and the movable blade 7 work together to continuously stir and cut the sample until it reaches a fully homogeneous mixture.

[0049] The stirring rod 6 is a round rod, and the movable fan blade 7 includes a movable sleeve and a blade body. The movable sleeve has a mounting hole in the center, and the movable sleeve is fitted onto the stirring rod 6 through the mounting hole. The movable sleeve and the stirring rod 6 are coaxially arranged.

[0050] The rotation of the stirring rod 6 provides the basic power for stirring, while the rotatable characteristic of the movable fan blade 7 allows it to adaptively adjust the rotation angle and speed according to the resistance and flow state of the sample, forming a more complete contact and interaction with the sample, and avoiding the "stirring dead zone" that may occur when the fixed fan blade is stirring viscous samples. In addition, the flexible movement of the movable fan blade 7 can also improve stirring efficiency and shorten stirring time in the same amount of time.

[0051] Optionally, multiple movable blades 7 are provided on the same stirring rod 6, with adjacent movable blades 7 on the same stirring rod 6 spaced apart. Multiple movable blades 7 are spaced apart along the axial direction on the stirring rod 6 to increase the stirring range covered by the first stirrer and to improve the stirring efficiency by increasing the number of movable blades 7.

[0052] The aforementioned movable fan blade 7 has multiple blades, and the blade bodies are evenly distributed around the circumference of the movable sleeve.

[0053] like Figure 3 and Figure 4 As shown, the blade body can be a circular rod-shaped structure. (As...) Figure 5 As shown, the blade body can be a paddle blade.

[0054] like Figures 1 to 2 As shown, for the second agitator, the agitator blades 13 installed on the second agitator can be arranged in layers along the axial direction. That is, multiple layers of agitator blades 13 are provided at the bottom of the cup body 1, and when the second rotating shaft 12 rotates, it drives the multiple layers of agitator blades 13 to rotate simultaneously. Optionally, each layer of agitator blades 13 has multiple agitator blades 13, and adjacent layers of agitator blades 13 are staggered.

[0055] To ensure effective mixing, the height of the second rotating shaft 12 shall not exceed one-fifth of the height of the cup body 1, and the mixing blades 13 on the second rotating shaft 12 shall not exceed three layers.

[0056] In some possible embodiments, please refer to Figure 1 The base 8 is provided with a power supply cavity 9, which contains a rotary motor and a battery 11. The output end of the rotary motor is connected to the second rotating shaft 12, and the battery 11 is electrically connected to the rotary motor.

[0057] A power supply cavity 9 with an opening facing downwards is provided in the base 8 of the cup body 1. An openable cover 10 is provided at the opening of the power supply cavity 9. A rotary motor is installed in the power supply cavity 9. The end of the second rotating shaft 12 extends through the bottom of the cup body 1 and the base 8 into the power supply cavity 9 and is fixedly connected to the output end of the rotary motor.

[0058] A battery 11 is also installed inside the power supply chamber 9. The battery 11 serves as the power source for the rotary motor and is connected to the rotary motor via wires. The battery 11 can be a rechargeable battery 11 or a dry cell battery 11. When the battery 11 is a rechargeable battery 11, a charging port for the battery 11 is retained on the base 8. This charging port is electrically connected to the battery 11 for charging the battery 11.

[0059] The drive motor of the first stirrer can be connected to the battery 11 inside the power supply chamber 9 via wires, or it can be connected to an external power source, or an auxiliary power source can be installed on the lid 3. The auxiliary power source is used to power the drive motor, control panel 4, and other devices on the lid 3. The control panel 4 on the lid 3 is used to control the start and stop of the rotary motor and the drive motor.

[0060] In some possible embodiments, please refer to Figure 1 The lower end of the cup lid 3 is equipped with a cooler 15, which is used to cool the solution inside the cup body 1; correspondingly, a temperature sensor 14 is installed inside the cup body 1.

[0061] Since higher temperatures during extraction lead to greater oil oxidation efficiency, a temperature sensor 14 is installed inside the cup 1 to detect the real-time temperature of the sample, and a cooler 15 is used to cool the sample inside the cup 1.

[0062] During the extraction process, as the second and first stirrers are activated sequentially, the sample generates heat due to friction. At this time, the temperature sensor 14 monitors the temperature of the sample inside the container 1 in real time. When the temperature sensor 14 detects that the solution temperature is close to the set critical temperature value for oil oxidation, the cooler 15 will automatically turn on or increase its cooling power to quickly reduce the solution temperature. If the temperature is within a suitable range, the cooler 15 will maintain a stable low-temperature output to ensure that the solution temperature remains at a controllable low temperature throughout the entire stirring extraction process.

[0063] The cooler 15 can be a miniature compressor, a cooling plate, etc. Optionally, the temperature inside the cup 1 can be maintained between 4℃ and 20℃.

[0064] The cooler 15 can be wired to the control panel 4 on the cup lid 3, and the opening and closing status can be changed through the control panel 4.

[0065] In some possible embodiments, please refer to Figure 6 , Figure 7The vortex stirring extractor also includes a support base 17, on which a lifting assembly is provided. The lifting assembly is used to drive the cup lid 3 to open and close. The lifting assembly includes a support frame and a lifting drive 20. The support frame is longitudinally arranged on the support base 17, and the upper end of the support frame extends to the top of the cup body 1. The lifting drive 20 is located on the upper part of the support frame, and the free end of the lifting drive 20 is connected to the upper end of the cup lid 3. The lifting drive 20 has a longitudinal degree of freedom, and the longitudinal extension and retraction of the lifting drive 20 drives the cup lid 3 to move up and down.

[0066] The support base 17 is placed on the workbench, and the upper surface of the support base 17 forms a support surface. The support frame is installed on the support surface, and the support surface also has a working position. The working position is on one side of the support frame and is used to position the cup body 1.

[0067] The working position can be a groove.

[0068] The support frame has an L-shaped or F-shaped structure.

[0069] like Figure 6 As shown, when the support frame has an L-shaped structure, it includes a vertical support 18 and a horizontal support 19. The horizontal support 19 is vertically positioned above the vertical support 18 and vertically connected to it. The horizontal support 19 extends above the cup body 1, and a lifting drive 20 is installed at the lower end of the horizontal support 19. The free end of the lifting drive 20 is connected to the cup lid 3. The lifting drive 20 extends and retracts itself to raise and lower the cup lid 3, thereby opening or closing the opening of the cup body 1. The lifting drive 20 can be an electric push rod.

[0070] like Figure 7 As shown, when the support frame has an F-shaped structure, the support frame includes a longitudinal support and two sub-supports 21; the two sub-supports 21 are longitudinally spaced on the longitudinal support; and a lifting drive 20 is provided between the two sub-supports 21. An extension rod 22 is connected to the cup lid 3, and the extension rod 22 extends between the two sub-supports 21 and is connected to the lifting drive 20.

[0071] Specifically, the lifting drive rod 20 is a threaded drive rod, and a lifting motor is connected to the top of the threaded drive rod. The threaded drive rod passes through the extension rod 22 and is threadedly engaged with the extension rod 22. The horizontal rotation of the threaded drive rod drives the extension rod 22 to move up and down, thereby driving the cup lid 3 to move up and down. A longitudinal guide rail 23 is provided on the longitudinal support between the two sub-supports 21, and the end of the extension rod 22 slides in engagement with the longitudinal guide rail 23.

[0072] 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 vortex stirring extractor for acid value detection of oil and fat products, characterized in that, include: A mixing cup includes a cup body (1) and a cup lid (3), the cup lid (3) being used to seal the opening of the cup body (1); The first stirrer is rotatably mounted on the cup lid (3). The first stirrer includes a first rotating shaft (5) and a plurality of stirring components, which are arranged radially around the first rotating shaft (5). The second stirrer is rotatably mounted on the base (8) of the cup body (1), and the second stirrer is located below the first stirrer; the second stirrer includes a second rotating shaft (12) and a plurality of stirring blades (13), and the plurality of stirring blades (13) are arranged radially around the second rotating shaft (12).

2. The vortex stirring extractor for acid value detection of oil and fat products as described in claim 1, characterized in that, The stirring component includes: The stirring rod (6) is vertically connected to the first rotating shaft (5); Movable fan blade (7) is fitted on the stirring rod (6), and the movable fan blade (7) has the freedom to rotate around the stirring rod (6).

3. The vortex stirring extractor for acid value detection of oil and fat products as described in claim 2, characterized in that, Multiple movable fan blades (7) are provided on the same stirring rod (6), and two adjacent movable fan blades (7) on the same stirring rod (6) are spaced apart.

4. The vortex stirring extractor for acid value detection of oil and fat products as described in claim 2, characterized in that, The movable fan blade (7) has multiple blades.

5. The vortex stirring extractor for acid value detection of oil and fat products as described in claim 1, characterized in that, The plurality of the stirring blades (13) are arranged in layers along the axial direction of the second rotating shaft (12).

6. The vortex stirring extractor for acid value detection of oil and fat products as described in claim 1, characterized in that, The base (8) is provided with a power supply cavity (9), in which a rotary motor and a battery (11) are provided; the output end of the rotary motor is connected to the second rotating shaft (12), and the battery (11) is electrically connected to the rotary motor.

7. The vortex stirring extractor for acid value detection of oil and fat products as described in claim 1, characterized in that, The outer periphery of the cup body (1) is provided with a heat insulation layer (2).

8. The vortex stirring extractor for acid value detection of oil and fat products as described in claim 1, characterized in that, The lower end of the cup lid (3) is provided with a cooler (15), which is used to cool the solution in the cup body (1); correspondingly, a temperature sensor (14) is provided inside the cup body (1).

9. The vortex stirring extractor for acid value detection of oil and fat products as described in claim 1, characterized in that, A sealing ring is provided between the cup body (1) and the cup lid (3).

10. The vortex stirring extractor for acid value detection of oil and fat products as described in claim 1, characterized in that, It also includes a support base (17), on which a lifting assembly is provided, the lifting assembly being used to drive the cup lid (3) to open and close; the lifting assembly includes: A support frame is longitudinally disposed on the support base (17), and the upper end of the support frame extends above the cup body (1); A lifting drive (20) is located on the upper part of the support frame. The free end of the lifting drive (20) is connected to the upper end of the cup lid (3). The lifting drive (20) has a longitudinal degree of freedom. The lifting drive (20) extends and retracts longitudinally to drive the cup lid (3) to move up and down.

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