Supercritical extraction system capable of avoiding volatilization caused by high-temperature crushing

Abstract

The utility model discloses a supercritical extraction system capable of avoiding volatilization caused by high-temperature crushing, which comprises a flat-roll crusher, a vibrating screen, a high-temperature crushing machine, a high-temperature crushing machine, a high-temperature crushing machine, a high-temperature crushing machine, a high-temperature crushing machine, a high-temperature crushing machine, a high-temperature crushing machine, a high-temperature crushing machine, a high-temperature crushing machine and a high-temperature crushing machine, the grooved roller crusher is used for receiving the sheet-shaped pepper shells from the vibrating screen and crushing and rolling the sheet-shaped pepper shells to obtain powdery pepper shells; the supercritical extraction equipment is used for receiving the powdery Chinese prickly ash shells from the grooved roller crusher and further extracting the powdery Chinese prickly ash shells to obtain Chinese prickly ash oil; according to the utility model, pepper particles are flattened by using the flat roller crusher, and pepper seeds and pepper shells of pepper are separated, so that the pepper shells are ground into sheets, and the pepper seeds are ground into powder; and then the powdery Chinese prickly ash seeds are screened out through a vibrating screen to obtain sheet-shaped Chinese prickly ash shells, and the sheet-shaped Chinese prickly ash shells are smashed through a groove roller smashing machine.

Description

Technical Field

[0001] This utility model belongs to the field of deep processing technology of Sichuan pepper, and in particular relates to a supercritical extraction system that can avoid volatilization caused by high-temperature pulverization. Background Technology

[0002] Sichuan peppercorns, with their numbing and aromatic properties, have a wide range of applications in food. In daily life, besides using Sichuan peppercorns directly as a seasoning, they are also ground into powder for use as a condiment. In the food industry, various processes are used to extract the effective components responsible for their numbing and aromatic properties, which are then used in various spicy and numbing flavored foods. Currently, the most widely used extraction method in the industry is supercritical carbon dioxide extraction (SCCE), which uses carbon dioxide at a supercritical temperature of 31.3℃ and a pressure of 7.15 MPa as a solvent. It leverages carbon dioxide's high permeability and high solubility to extract the effective components from Sichuan peppercorns. SCCE offers advantages such as high efficiency, no solvent residue, and high flavor retention, making it the mainstream extraction method for the effective components of Sichuan peppercorns.

[0003] Generally, Sichuan peppercorns are pulverized before extraction to break down cell walls and improve extraction yield. Turbine pulverizers are typically used for pretreatment. The principle of turbine pulverizers is to feed the material into the inlet, where it is conveyed to the pulverizing chamber by a feed auger. The high-speed rotating cutter disc causes the material to collide continuously within the chamber until it reaches the required fineness, and then it is discharged by airflow. However, high temperatures can decompose the numbing components of Sichuan peppercorns and cause the already volatile essential oils to evaporate prematurely. The airflow carries away this portion, resulting in a lower extraction yield.

[0004] In another scenario, cryogenic pulverization uses liquid nitrogen as a coolant to lower the temperature of Sichuan peppercorns to around -80°C, making them brittle, before pulverizing them into a 20-mesh fine powder using a turbine pulverizer. This process solves the high-temperature problem in Sichuan peppercorn extraction, preserving the active ingredients. However, it has two drawbacks: first, cryogenic pulverization cannot strictly control the fineness, resulting in uneven powder and affecting the final yield; second, this process is too expensive, leading to a higher cost for the final extract compared to conventional pulverization methods. Utility Model Content

[0005] The purpose of this invention is to provide a supercritical extraction system that avoids volatilization caused by high-temperature pulverization, in order to solve the problem that high temperature and wind force affect the effective components of Sichuan pepper during the pretreatment pulverization process of supercritical carbon dioxide extraction.

[0006] This utility model adopts the following technical solution: a supercritical extraction system that can avoid volatilization caused by high-temperature pulverization, comprising:

[0007] The flat roller crusher has its inlet connected to the conveyor and is used to separate the pepper seeds and pepper shells of Sichuan pepper, crushing the pepper shells into flakes and the pepper seeds into powder.

[0008] The outlet of the vibrating screen and the flat roller crusher is located on the upper side of the vibrating screen. It is used to separate the flaky pepper shells and powdered pepper seeds from the flat roller crusher, so that the powdered pepper seeds are screened out and flaky pepper shells are obtained.

[0009] The grooved roller crusher has its inlet connected to a vibrating screen to receive flaky pepper shells from the vibrating screen and crush and grind the flaky pepper shells to obtain powdered pepper shells.

[0010] The supercritical extraction equipment has its inlet connected to the outlet of the grooved roller crusher. It is used to receive powdered pepper shells from the grooved roller crusher and then extract the powdered pepper shells to obtain pepper oil.

[0011] Furthermore, the grooved roller crusher is provided with two parts, and the groove width of the grooved roller crusher gradually decreases according to the flow direction.

[0012] Furthermore, the groove widths of the two grooved roller pulverizers range from 0.3 to 0.35 mm and 0.2 to 0.25 mm, respectively.

[0013] Furthermore, screw conveyors are installed between the vibrating screen and the adjacent grooved roller crusher, and between the two grooved roller crushers.

[0014] The beneficial effects of this utility model are:

[0015] This invention utilizes a flat roller crusher to flatten peppercorns and separate peppercorn seeds from peppercorn shells, so that the peppercorn shells are crushed into flakes and the peppercorns are crushed into powder. Then, the powdered peppercorn seeds are screened out by a vibrating screen to obtain flake peppercorn shells, which are then crushed by a grooved roller pulverizer.

[0016] Both the flat roller crusher and the grooved roller pulverizer in this utility model crush peppercorns by extrusion rather than by high-speed rotation, thus reducing contact and collision between peppercorns and reducing heat generation. The crushed peppercorns fall naturally without relying on wind power for transport, and will not carry away the effective components of the peppercorns.

[0017] Both the flat roller pulverizer and the grooved roller pulverizer in this invention pulverize by extrusion, eliminating the need for low-temperature pulverization. This reduces costs while ensuring that the resulting powder is uniform and fine, thus improving the yield of supercritical extraction of Sichuan pepper in the later stages. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] The components include: 1. Flat roller crusher; 2. Vibrating screen; 3. Grooved roller crusher; 6. Screw conveyor. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0022] This utility model discloses a supercritical extraction system that avoids volatilization caused by high-temperature pulverization, such as Figure 1 As shown, it includes: a flat roller crusher 1, a vibrating screen 2, a grooved roller crusher 3, and a supercritical extraction device.

[0023] The inlet of the flat roller crusher 1 is connected to the conveyor. The flat roller crusher 1 is used to separate the pepper seeds and pepper shells of Sichuan pepper, and to crush the pepper shells into flakes and the pepper seeds into powder.

[0024] The outlet of the flat roller crusher 1 is located above the vibrating screen 2, which is used to separate the flaky pepper shells and powdered pepper seeds from the flat roller crusher 1, and to remove the powdered pepper seeds to obtain flaky pepper shells.

[0025] The inlet of the grooved roller crusher 3 is connected to the vibrating screen 2. The grooved roller crusher 3 is used to receive the flaky pepper shells from the vibrating screen 2 and crush and grind the flaky pepper shells to obtain powdered pepper shells.

[0026] The inlet of the supercritical extraction equipment is connected to the outlet of the grooved roller crusher 3. The supercritical extraction equipment is used to receive the powdered pepper shells from the grooved roller crusher 3, and then extract the powdered pepper shells to obtain pepper oil.

[0027] Two grooved roller crushers 3 are provided, and the groove width of the grooved roller crushers 3 gradually decreases according to the flow direction. The groove widths of the two grooved roller crushers 3 range from 0.3 to 0.35 mm and 0.2 to 0.25 mm, respectively. Screw conveyors are provided between the vibrating screen 2 and the adjacent grooved roller crusher 3, and between the two grooved roller crushers 3.

[0028] This invention utilizes a flat roller crusher 1 to flatten peppercorns and separate peppercorn seeds and shells, so that the peppercorn shells are crushed into flakes and the peppercorn seeds are crushed into powder. Then, the powdered peppercorn seeds are screened out by a vibrating screen 2 to obtain flake peppercorn shells, and the flake peppercorn shells are crushed by a grooved roller pulverizer 3.

[0029] In this utility model, both the flat roller crusher 1 and the grooved roller crusher 3 crush peppercorns by extrusion rather than by high-speed rotation, thus reducing contact and collision between peppercorns and reducing heat generation. The crushed peppercorns fall naturally without relying on wind power for transport, and will not carry away the effective components of the peppercorns.

[0030] In this utility model, both the flat roller pulverizer 1 and the grooved roller pulverizer 3 pulverize by extrusion, eliminating the need for low-temperature pulverization. This reduces costs while ensuring that the resulting powder is uniform and fine, thus improving the yield of supercritical extraction of Sichuan pepper in the later stages.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 supercritical extraction system that avoids volatilization caused by high-temperature pulverization, characterized in that, The utility model relates to a pepper processing device, which comprises: a flat roller pulverizer (1) connected with a conveyor at its inlet, for separating pepper seeds and pepper shells and crushing the pepper shells into flakes and the pepper seeds into powder; a vibrating screen (2) with the outlet of the flat roller pulverizer (1) located at the upper side of the vibrating screen (2), for separating the flaky pepper shells and the powder-like pepper seeds from the flat roller pulverizer (1) and screening out the powder-like pepper seeds to obtain the flaky pepper shells; a grooved roller pulverizer (3) connected with the vibrating screen (2) at its inlet, for receiving the flaky pepper shells from the vibrating screen (2) and crushing and pressing the flaky pepper shells into powder-like pepper shells; a supercritical extraction device connected with the outlet of the grooved roller pulverizer (3) at its inlet, for receiving the powder-like pepper shells from the grooved roller pulverizer (3) and extracting the powder-like pepper shells to obtain pepper oil.

2. The supercritical extraction system capable of avoiding volatilization caused by high-temperature pulverization according to claim 1, characterized by, The grooved roller pulverizer (3) is provided with two grooved rollers, and the groove width of the grooved roller pulverizer (3) gradually decreases along the flow direction.

3. The supercritical extraction system according to claim 2, wherein The groove width of the two grooved roller pulverizers (3) ranges from 0.3 to 0.35 mm and from 0.2 to 0.25 mm, respectively.

4. The supercritical extraction system according to claim 2, wherein Screw conveyors are arranged between the vibrating screen (2) and the adjacent grooved roller pulverizer (3) and between the two grooved roller pulverizers (3).

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