Supercritical fluid extraction equipment for extracting spices

Abstract

The utility model provides supercritical fluid extraction equipment for spice extraction. The supercritical fluid extraction equipment comprises an extraction equipment body, and the extraction equipment body is communicated with feeding equipment, gas conveying equipment and condensing equipment through a pipe group; the tank body adopts a double-layer tank body, and a filtering tank is arranged in the tank body; the driving assembly is provided with a motor, and a driving shaft of the motor penetrates through the mounting ring and extends into the filtering tank; the scraper is connected with an adjusting screw which is provided with at least one group of scrapers. According to the utility model, the scraping plate of the driving assembly is propped against the inner wall of the filtering tank, so that even if the extraction equipment body is used for a long time, a large amount of impurities are not attached, and the extraction precision and the product quality are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of spice extraction equipment, in particular to a supercritical fluid extraction equipment for spice extraction. Background Art

[0002] After the spice raw materials are collected and picked as plants, they need to be processed. There are generally three processing methods: direct cooking, crushing, and extraction.

[0003] Extraction is generally carried out using equipment such as distillation extraction, solvent extraction, supercritical fluid extraction, and microwave-assisted extraction.

[0004] After long-term use, a large amount of impurities will adhere to the inner wall of the existing supercritical fluid extraction equipment, thereby affecting the extraction accuracy and reducing product quality.

[0005] In view of this, how to solve the defects in the above technical solutions has become one of the problems to be solved urgently in the field of spice extraction equipment technology. Utility Model Content

[0006] In view of the problems existing in the background technology, the purpose of the present invention is to solve the problem that after long-term use, a large amount of impurities will adhere to the inner wall of the existing supercritical fluid extraction equipment, thereby affecting the extraction accuracy and reducing product quality.

[0007] In view of the problems existing in the background technology, the present invention provides a supercritical fluid extraction device for spice extraction, comprising:

[0008] An extraction device body connected to a feeding device, a gas conveying device, and a condensing device through a pipe group;

[0009] The tank body is a double-layer tank body with a filter tank arranged inside;

[0010] A drive assembly, wherein the drive assembly is provided with a motor, and a drive shaft of the motor passes through the mounting ring and extends into the interior of the filter tank; and

[0011] An adjusting screw is connected, and at least one set of scrapers is provided on the adjusting screw.

[0012] Preferably, a spiral transmission is formed between the sleeve of the scraper and the adjusting screw.

[0013] Preferably, the outer ring of the scraper is made of rubber material, and

[0014] The outer wall of the outer ring of the scraper is in contact with the inner wall of the filter tank.

[0015] Preferably, the sleeve and the outer ring of the scraper are connected by reinforcing ribs.

[0016] Preferably, a spiral plate is provided at the bottom end of the adjusting screw.

[0017] Preferably, the filter tank is provided with an upper cavity and a lower cavity.

[0018] The inner wall of the upper cavity is provided with at least one set of filter holes, and

[0019] An inclined plate is installed on the inner wall of the upper cavity.

[0020] Preferably, the lower cavity is provided with a discharge channel, and

[0021] The discharge channel is connected to the discharge port.

[0022] In summary, the beneficial effects of the present invention are:

[0023] The utility model adds a driving component and makes the scraper of the driving component abut against the inner wall of the filter tank, so that even after a long period of use, a large amount of impurities will not adhere to the extraction device body, thereby greatly improving the extraction accuracy and product quality. It only needs to start the motor to drive the adjusting screw to rotate, so that the scraper that is spirally driven by the adjusting screw moves up and down in a straight line inside the filter tank, and then the scraper scrapes off the impurities on the inner wall of the filter tank to prevent impurities from adhering to the inner wall of the filter tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a supercritical fluid extraction device for spice extraction according to the present utility model;

[0025] Figure 2 This is a schematic diagram of the structure of an extraction device for supercritical fluid extraction of spices according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of a driving component of an embodiment of a supercritical fluid extraction device for spice extraction according to the present invention;

[0027] Figure 4 This is a partial structural diagram of an embodiment of a supercritical fluid extraction device for spice extraction according to the present invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of a tank body of an embodiment of a supercritical fluid extraction device for spice extraction according to the present invention;

[0029] Figure 6The utility model is a schematic diagram of the structure of a filter tank of an embodiment of a supercritical fluid extraction device for spice extraction.

[0030] Reference numerals:

[0031] 10. Extraction equipment body; 101. Tank body;

[0032] 102, filter tank; 1021, filter hole; 1022, lower cavity; 1023, upper cavity;

[0033] 103. Discharging channel; 104. Inclined plate;

[0034] 20. Drive assembly; 201. Motor; 202. Adjusting screw; 203. Scraper; 2031. Reinforcement rib; 204. Spiral plate; 205. Mounting ring;

[0035] 30. Support frame;

[0036] 40. Gas delivery equipment; 401. Control valve;

[0037] 50. Feeding equipment;

[0038] 60. Condensing equipment;

[0039] 70. Discharge port. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions, and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to facilitate a more thorough understanding of the present invention and to fully convey the concept of the present invention to those skilled in the art.

[0041] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are contradictory.

[0042] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0043] The utility model is mainly used for extracting spice raw materials in the research of seasonings.

[0044] like Figures 1 to 6 As shown, this embodiment provides a supercritical fluid extraction device for spice extraction, including an extraction device body 100, and the extraction device body 100 is connected to a feeding device 50, a gas conveying device 40 and a condensing device 60 through a tube group, one end of the gas conveying device 40 is connected to the extraction device body 100, and the other end is connected to the condensing device 60 through a tube group, and a control valve 401 is provided on the tube group, the feeding device 50 is connected to the extraction device body 100, the liquid discharge port of the extraction device body 100 is connected to the condensing device 60, and the condensing device 60 is provided with a discharge port 70, through which solid impurities are discharged.

[0045] In this embodiment, in actual application, the prepared crushed spice raw materials are first loaded into the extraction equipment body 100, and then a supercritical fluid (mostly carbon dioxide) is input into the extraction equipment body 100 through the feeding device 50, and the pressure and accuracy of the extraction equipment body 100 are precisely controlled (this is the existing technology and will not be described in detail here) to ensure that it remains in a supercritical state; the required compounds are extracted from the crushed flavor raw materials through the supercritical fluid; then the pressure is reduced and condensed by the condensing device. As the pressure drops, the gaseous carbon dioxide leaves the extracted compounds and is discharged through the discharge port of the condensing device. The gaseous carbon dioxide is then transported to the gas conveying device 40 through the pipe group, and then transported to the extraction equipment body 100 through the gas conveying device for recycling.

[0046] After long-term use, the existing supercritical fluid extraction equipment will have a large amount of impurities attached to the inner wall of the extraction equipment, which will affect the extraction accuracy and reduce the product quality. In order to solve the above problems, please refer to Figures 1 to 6 As shown,

[0047] The extraction device body 100 includes a tank body 101, and the tank body 101 is a double-layer tank body, and a filter tank 102 is arranged inside the tank body;

[0048] The extraction device body 100 includes a mounting ring 205, and the mounting ring 205 is fixedly mounted on the inner wall of the extraction device body 100 by means of a fixing screw or the like.

[0049] The extraction device body 100 further includes a driving assembly 20 , and the driving assembly 20 is provided with a motor 201 . The driving shaft of the motor 201 passes through the mounting ring 205 and extends into the interior of the filter tank.

[0050] Furthermore, the driving shaft of the motor 201 is connected to the adjusting screw 202 through a bearing assembly. The adjusting screw 202 is provided with at least one set of scrapers 203 , and a spiral transmission is formed between the sleeve of the scraper 203 and the adjusting screw 202 .

[0051] Furthermore, the outer ring of the scraper 203 is made of rubber material, and the outer wall of the outer ring of the scraper 203 abuts against the inner wall of the filter tank 202, so that the outer ring of the scraper has a certain elastic deformation margin, making it closer to the inner wall of the filter tank.

[0052] In this embodiment, by adding a driving assembly and making the scraper 203 of the driving assembly abut against the inner wall of the filter tank, a large amount of impurities will not adhere to the extraction device body even after long-term use, thereby greatly improving the extraction accuracy and product quality.

[0053] In actual application, it is only necessary to start the motor 201 and drive the adjusting screw 202 to rotate through the motor 201, so that the scraper 203 that is spirally driven with the adjusting screw can move up and down linearly inside the filter tank, and then the scraper 203 can scrape off the impurities on the inner wall of the filter tank to prevent impurities from adhering to the inner wall of the filter tank.

[0054] In actual application, in order to facilitate the falling of materials into the filter tank, the sleeve of the scraper 203 and the outer ring of the scraper 203 are usually connected by a connecting rod. However, with the above technical solution, there is a risk of the connecting rod breaking, resulting in the scraper being unable to effectively scrape the impurities on the inner wall of the filter tank. To solve the above problem, please refer to Figure 3 As shown, the sleeve and outer ring of the scraper 203 are connected by reinforcing ribs 2031 to improve the overall strength.

[0055] In practical applications, in order to better separate solids and fluids, existing equipment generally uses a rotatable tank, which generates a strong centrifugal force through the high-speed rotation of the tank to achieve solid-liquid separation. However, in practical applications, solid-liquid separation often occurs before the fluid and material have fully reacted. To solve the above problem, please refer to Figure 3As shown, a spiral plate 204 is provided at the bottom end of the adjusting screw 202, and the spiral plate 204 and the adjusting screw 202 are detachably connected.

[0056] In this embodiment, the rotation of the screw is adjusted to drive the spiral plate 204 to rotate, thereby making the fluid and the material more fully mixed, increasing the reaction speed, and generating a certain centrifugal force through the rotation of the spiral plate.

[0057] Furthermore, the filter tank 102 is provided with an upper cavity 1023 and a lower cavity 1022. The inner wall of the upper cavity 1023 is provided with at least one set of filter holes 1021, and the inner wall of the upper cavity 1023 is fixed with an inclined plate 104 by fastening screws. The addition of the inclined plate facilitates the mixed fluid to flow into the lower cavity 1022 through the inclined plate.

[0058] Furthermore, a discharge channel 103 is installed on the outer wall of the lower cavity 1022 by means of a fixed connection such as fastening screws, and the discharge channel 103 is communicated with the discharge port 70 .

[0059] In this embodiment, solid-liquid separation can be achieved while ensuring sufficient reaction between the fluid and the material. In actual application, the rotation of the screw is adjusted, thereby driving the spiral plate 204 to rotate at high speed to generate a certain centrifugal force. Furthermore, since the filter holes are provided in the upper cavity of the filter tank, the centrifugal force causes the solids to be thrown out of the filter tank through the filter holes in the upper cavity and into the outer cavity of the tank, while the mixed fluid flows into the lower cavity, achieving solid-liquid separation.

[0060] The use process and working principle of this utility model are:

[0061] First, the prepared crushed spice raw materials are loaded into the extraction device body 100. Then, a supercritical fluid (mostly carbon dioxide) is introduced into the extraction device body 100 through the feeding device 50. The pressure and accuracy of the extraction device body 100 are precisely controlled (this is a prior art and will not be described in detail here) to ensure that it remains in a supercritical state. The desired compounds are extracted from the crushed flavor raw materials through the supercritical fluid. The motor is started, and the motor drives the adjustment screw to rotate, thereby driving the spiral plate 204 to rotate at high speed to generate a certain centrifugal force. The filter hole is opened in the upper cavity of the filter tank. The centrifugal force causes the solids to be thrown out of the filter tank through the filter hole in the upper cavity and into the outer cavity of the tank body, while the mixed fluid flows into the lower cavity and then into the condensing device 60. As the pressure drops, the gaseous carbon dioxide leaves the extracted compounds and is discharged through the condensing device outlet. The gaseous carbon dioxide is then transported through the pipe group to the gas conveying device 40, and then transported to the extraction device body 100 for recycling.

[0062] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to be limiting. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A supercritical fluid extraction device for spice extraction, comprising: The extraction equipment body is connected to the feeding equipment, the gas conveying equipment and the condensing equipment through the pipe group; It is characterized by also including The tank body is a double-layer tank body with a filter tank arranged inside; A drive assembly, wherein the drive assembly is provided with a motor, and a drive shaft of the motor passes through the mounting ring and extends into the interior of the filter tank; and An adjusting screw is connected, and at least one set of scrapers is provided on the adjusting screw.

2. A supercritical fluid extraction equipment for spice extraction according to claim 1, characterized in that, A spiral transmission is formed between the sleeve of the scraper and the adjusting screw.

3. A supercritical fluid extraction equipment for spice extraction according to claim 1, characterized in that: The outer ring of the scraper is made of rubber material, and The outer wall of the outer ring of the scraper is in contact with the inner wall of the filter tank.

4. A supercritical fluid extraction equipment for spice extraction according to claim 3, characterized in that: The sleeve and the outer ring of the scraper are connected via reinforcing ribs.

5. The supercritical fluid extraction equipment for spice extraction according to claim 1, characterized in that: The bottom end of the adjusting screw is provided with a spiral plate.

6. The supercritical fluid extraction equipment for spice extraction according to claim 1, characterized in that: The filter tank is provided with an upper cavity and a lower cavity. The inner wall of the upper cavity is provided with at least one set of filter holes, and An inclined plate is installed on the inner wall of the upper cavity.

7. The supercritical fluid extraction equipment for spice extraction according to claim 6, characterized in that: The lower cavity is equipped with a discharge channel, and The discharge channel is connected to the discharge port.

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