Multifunctional extraction device for spices and control method thereof

Abstract

The invention relates to the field of substance separation, and discloses a multifunctional extraction device for spices and a control method thereof.The multifunctional extraction device comprises an extraction tank, the upper portion of the extraction tank is provided with a feeding manhole and a feeding pipeline, the lower portion of the extraction tank is provided with a residue discharging opening and an extracting solution discharging pipe, and the residue discharging opening is provided with a residue discharging cover; a volatile gas collection module is led out from the upper part of the extraction tank and is provided with a reflux branch communicated with the extraction tank; the extraction tank is also provided with a stirring blade and an ultrasonic device which act in the tank, and is connected with a liquid separation tank from the extracting solution discharge pipe at the lower part; the liquid separation tank, the extraction tank and the volatile gas collection module are each independently provided with a temperature control module; according to the invention, the ultrasonic device, the high and low temperature device, the airflow stirring device, the variable frequency paddle stirring device, the aromatic substance condensation and recovery device and the liquid separation device are integrated into one system for comprehensive extraction of effective components of spices, so that the comprehensive utilization value of the spices is improved.

Description

Technical Field

[0001] This invention relates to the field of substance separation, specifically to a multifunctional extraction device for spices and its control method. Background Technology

[0002] In the food processing, daily chemical, and pharmaceutical industries, the extraction of volatile oils, flavor substances, and active ingredients from spices is a core production process. Its extraction efficiency, component recovery rate, and purity directly determine the quality and market competitiveness of the final product. Currently, mainstream spice extraction equipment in the industry uses an extraction tank as its core structure. A typical structure includes: a manhole and feeding pipeline at the top of the extraction tank for feeding spice raw materials and extraction solvents; and a slag discharge port (usually equipped with a slag cover) and an extract outlet pipe at the bottom of the extraction tank for discharging residue and exporting extract, respectively, to meet the basic production process of "feeding-extraction-slag discharge-export."

[0003] However, existing spice extraction devices suffer from severe loss of volatile active ingredients, insufficient extraction efficiency and sufficiency, and limited functionality in practical industrial applications. They are unable to meet the demands for efficient and high-value extraction and are not suitable for comprehensive applications involving complex raw materials and multiple technologies. Summary of the Invention

[0004] Therefore, in order to overcome the above-mentioned shortcomings, the present invention provides a multifunctional extraction device and control method for spices, which integrates an ultrasonic device, a high and low temperature device, an airflow stirring device, a variable frequency paddle stirring device, an aromatic substance condensation and recovery device, and a liquid separation device into one system for the comprehensive extraction of effective components of spices, thereby improving the comprehensive utilization value of spices.

[0005] On one hand, the present invention provides a multifunctional extraction device for spices, including an extraction tank, the upper part of which is provided with a feeding manhole and a feeding pipeline, and the lower part is provided with a slag discharge port and an extract outlet pipe, and the slag discharge port is provided with a slag cover; the extraction tank is provided with a volatile gas collection module leading out from the upper part, and the volatile gas collection module is provided with a return branch connected to the extraction tank; The extraction tank is also equipped with stirring blades and an ultrasonic device that act inside the tank, and a separatory tank is connected from the extract outlet pipe at the bottom. Each of the separating tank, extraction tank, and volatile gas collection module is equipped with a separate temperature control module.

[0006] Optionally, the volatile gas collection module includes a volatile gas branch, which is sequentially connected to a tube-and-tube cold shower, a coil-and-tube cold shower, a liquid separator, and a collection tank. One end of the reflux branch is connected to the separator, and the other end is connected to the extraction tank; The temperature control module of the volatile gas collection module is a cooling device that acts on the tube-and-shell cooler and the coil cooler.

[0007] Optionally, a compressed air coil is provided at the bottom inside the extraction tank, and the coil is connected to a compressed air source through a pipe equipped with a valve.

[0008] Optionally, the temperature control module of the extraction tank includes a temperature sensor, a temperature control layer, a heat insulation layer, and a high-low temperature integrated machine. The sensor is installed in the extraction tank and collects the temperature of the extraction tank. The temperature control layer acts on the extraction tank and is controlled by the high-low temperature integrated machine. The heat insulation layer is located around the temperature control layer. The high-low temperature integrated machine controls the temperature of the medium and then acts on the temperature control layer.

[0009] Optionally, the separator is equipped with a separator stirring blade, and a separator pipeline is provided at the outlet at the bottom of the separator, which includes an upper separator pipeline and a lower separator pipeline. The control module of the dispensing tank includes a temperature dispensing tank sensor, a temperature control layer for the dispensing tank, a heat insulation layer for the dispensing tank, and a dispensing cooling device. The temperature dispensing tank sensor is installed on the dispensing tank and collects the temperature of the dispensing tank. The temperature control layer acts on the dispensing tank and is controlled by the dispensing cooling device. The heat insulation layer for the dispensing tank is located outside the temperature control layer for the dispensing tank. The dispensing cooling device controls the temperature of the medium and then acts on the temperature control layer for the dispensing tank.

[0010] On the other hand, the present invention also provides a control method for a multifunctional extraction device for spices, the control method being used to control the multifunctional extraction device for spices, the control method comprising the following steps: Add a specified amount of material to the extraction tank, and set or select the initial parameters of the extraction tank according to the properties of the material. The initial parameters include at least the solubility curve of the substance, the stirring speed parameter, the number and duration of airflow stirring intervals, the ultrasonic power parameter or working mode, and the total extraction time. After the extraction tank is preheated to the specified temperature, extraction pretreatment control is performed. After the extraction pretreatment is completed, the extraction strategy is executed to extract the material. During the extraction process, volatile substances are collected through the condensation reflux branch. After the total extraction time is completed, stop the extraction and drain the extract into a separatory tank, allowing the extract to be separated and collected at the set temperature.

[0011] Optionally, extraction preprocessing controls include: Set the temperature of the extraction tank to 50%~60% of the solvent's boiling point; Start the stirring blades and set the stirring blade speed to the preset fast value to mechanically stir the material through the stirring blades; During the stirring process, the compressed air coil is intermittently activated to introduce compressed air from the bottom of the extraction tank for airflow stirring. During the stirring process, the ultrasonic device is activated. When the stirring blade speed is greater than the first set speed, the power of the ultrasonic device is controlled within the pre-treatment power value. After mechanical stirring for a preset time, the extraction pretreatment is completed.

[0012] Optionally, the extraction strategy includes: Based on the pretreatment temperature, the extraction tank is gradually heated according to the solubility curve of the substance, with the maximum temperature not exceeding the critical temperature. T o At the same time, the power of the ultrasound device is increased based on the processed power value, but the power does not exceed the maximum threshold. When the temperature of the extraction tank is ≥ T 0 When the speed is ×80%, the stirring blade speed will decrease by 10%~20%; When the power of the ultrasonic device is greater than or equal to the first adjustment value, the airflow stirring pressure of the compressed air is reduced; if the ultrasonic device detects a decrease in cavitation efficiency, the stirring speed of the stirring blades is increased by 5% to 10%. After the extraction time is completed, subsequent purification is carried out.

[0013] Optionally, the subsequent purification involves gradually reducing the temperature of the extraction tank to T0×60%, reducing the power of the ultrasonic device to a low-power mode, reducing the speed of the stirring blades, and continuously introducing compressed air.

[0014] Optionally, the method for discharging the extract into a separatory tank and allowing the extract to be separated and collected at a set temperature is as follows: Start the extract discharge pump; the extract first passes through a filter screen, then through the extract discharge pipeline, pumping the two-phase extract mixture into the separatory tank; start the separatory cooling equipment; the coolant circulates through the refrigerant pipeline to cool the separatory tank; start the separatory tank stirring device; after the two-phase extract has cooled to the set temperature, stop stirring and allow it to stand until it reaches the required process temperature; then open the discharge valve of the lower layer separator pipeline and start the lower layer separator pipeline discharge pump to pump the lower layer separator to the designated location; after the lower layer separator is pumped out, close the lower layer separator pipeline discharge valve and stop the lower layer separator pipeline discharge pump; then open the discharge valve of the upper layer separator pipeline and start the upper layer separator pipeline discharge pump to pump the upper layer separator to the designated location; after the upper layer separator is pumped out, close the upper layer separator pipeline discharge valve and stop the upper layer separator pipeline discharge pump.

[0015] The present invention has the following advantages: This invention relates to a multifunctional extraction device and control method for spices. It employs a high-low temperature device to heat and cool the extraction tank, ensuring precise temperature control during the extraction process. Simultaneously, a combination of mechanical and airflow agitation is used in the extraction tank to ensure sufficient and rational flow of the material during extraction. Furthermore, the cavitation effect of focused ultrasound is utilized during extraction to break down the cell walls of the material, ensuring full extraction of active ingredients. In terms of equipment structure, a separator is added to facilitate phase separation in two-phase extraction. A tubular condenser is installed above the extraction tank to ensure the recovery and reuse of volatile aromatic compounds during heating and extraction. This multifunctional extraction device fully satisfies: ultrasonic-assisted extraction; ultrasonic-assisted extraction and filtration; two-phase extraction and separation; and condensation and recovery of aromatic oils during the extraction process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a multi-functional extraction device for spices; Figure 2 This is a schematic diagram of the control method for a multifunctional extraction device for spices; 1. High and low temperature integrated unit; 2. Slag discharge cover; 3. Extraction liquid discharge pipe; 4. Compressed air coil; 5. Filter screen; 6. Insulation layer; 7. Temperature control layer; 8. Stirring blade; 9. Slag discharge cover cylinder; 10. Heat transfer oil pipeline; 11. Collection tank; 12. Collection tank inlet valve; 13. Separator; 14. Reflux branch; 15. Condensation coil; 16. Feeding manhole; 17. Ultrasonic device; 18. Stirring power unit; 19. Volatile gas branch; 20. Exhaust valve; 21. Shell and tube condenser; 22. Volatile oil recovery and condensation pipeline; 23. Coil condenser; 24. Feeding pipeline; 25. Extraction tank; 26. Collection tank discharge valve; 27. 1. Condenser coolant piping; 28. Temperature sensor; 29. ​​Separator discharge valve; 30. Cooling equipment; 31. Extract discharge piping; 32. Compressed gas inlet valve; 33. Extract discharge pump; 34. Lower layer separated liquid discharge pump; 35. Upper layer separated liquid discharge pump; 36. Separator cooling device; 37. Drain valve; 38. Lower layer separated liquid piping; 39. Upper layer separated liquid piping; 40. Separator refrigerant piping; 41. Observation window; 42. Separator sensor; 43. Separator insulation layer; 44. Separator temperature control layer; 45. Separator stirring blades; 46. Separator; 47. Manhole; 48. Separator stirring device. Detailed Implementation

[0017] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0018] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0019] As described in the background section, in the food processing, daily chemical products, and pharmaceutical fields, the extraction of volatile oils, flavor substances, and active ingredients from spices is a core production process. Its extraction efficiency, component recovery rate, and purity directly determine the quality and market competitiveness of the final product. Currently, mainstream spice extraction equipment in the industry uses an extraction tank as its core structure. A typical structure includes: a feeding manhole and feeding pipeline at the top of the extraction tank for feeding spice raw materials and extraction solvents; and a slag discharge port (usually equipped with a slag discharge cover) and an extract outlet pipe at the bottom of the extraction tank for discharging residue and exporting extract, respectively, to meet the basic production process of "feeding-extraction-slag discharge-output".

[0020] However, existing spice extraction devices suffer from severe loss of volatile active ingredients, insufficient extraction efficiency and sufficiency, and limited functionality in practical industrial applications. They are unable to meet the demands for efficient and high-value extraction and are not suitable for comprehensive applications involving complex raw materials and multiple technologies.

[0021] For the reasons mentioned above, this embodiment provides a multifunctional extraction device for spices, including an extraction tank 25. The upper part of the extraction tank is provided with a feeding manhole 16 and a feeding pipe 24, and the lower part is provided with a slag discharge port and an extract outlet pipe 3. A slag discharge cover 2 is provided at the slag discharge port. A volatile gas collection module is led out from the upper part of the extraction tank, and the volatile gas collection module is provided with a return branch 14 connected to the extraction tank. The extraction tank is also equipped with a stirring blade 8 and an ultrasonic device 17 that act inside the tank, and a separatory tank 46 is connected from the extraction liquid outlet pipe at the bottom. Each of the separating tank, extraction tank, and volatile gas collection module is equipped with a separate temperature control module.

[0022] The volatile gas collection module includes a volatile gas branch 19, which is sequentially connected to a tube-type cold shower 21, a coil-type cold shower 23, a liquid separator 13, and a collection tank 11. One end of the reflux branch is connected to the separator, and the other end is connected to the extraction tank; The temperature control module of the volatile gas collection module is a cooling device 30 that acts on the tube cooler and the coil cooler.

[0023] A compressed air coil 4 is installed at the bottom inside the extraction tank. The coil is connected to a compressed air source through a pipe equipped with a valve.

[0024] The temperature control module of the extraction tank 25 includes a temperature sensor 28, a temperature control layer 7, a heat insulation layer 6, and a high and low temperature integrated machine 1. The sensor is installed in the extraction tank and collects the temperature of the extraction tank. The temperature control layer acts on the extraction tank and is controlled by the high and low temperature integrated machine. The heat insulation layer is located on the periphery of the temperature control layer. The high and low temperature integrated machine controls the temperature of the medium and then acts on the temperature control layer.

[0025] The separator is equipped with a separator stirring blade 45, and a separator pipeline is provided at the liquid outlet at the bottom of the separator. The separator pipeline includes an upper separator pipeline 39 and a lower separator pipeline 38. The control module of the dispensing tank includes a temperature dispensing tank sensor 42, a temperature control layer 44, an insulation layer 43, and a cooling device 36. The temperature dispensing tank sensor is installed on the dispensing tank and collects the temperature of the dispensing tank. The temperature control layer acts on the dispensing tank and is controlled by the cooling device. The insulation layer is located around the temperature control layer. The cooling device controls the temperature of the medium and then acts on the temperature control layer.

[0026] When using the aforementioned multifunctional extraction device for spices: solid materials are fed in through the feeding manhole 16, and liquid materials are added through the feeding pipe 24. The high and low temperature integrated machine 1 and the cooling equipment 30 for the extraction tank condenser are started. The refrigerant is pumped into the tube condenser 21 and the coil condenser 23 through the coolant pipe 27 to cool the condensers. The heat transfer oil is pumped into the temperature control layer 7 of the extraction tank 25 through the heat transfer oil pipe 10, and the material in the extraction tank is heated through the circulation pipe. The ultrasonic device 17 is started, and the material extraction process is accelerated through the cavitation effect of the ultrasonic waves. The volatile gas branch 19 is opened. The aromatic materials that evaporate upon heating enter the tube condenser 21 and coil condenser 23 through the condensation recovery branch, where they condense into a liquid state. The volatile condensate that needs to be returned flows into the extraction tank through the condensation coil 15, the distributor return valve, and the branch. The volatile condensate that does not need to be recovered enters the collection tank 11 through the collection tank inlet valve 12 and pipeline. After a certain amount is collected, the collection tank outlet valve 26 is opened, and the condensate is injected into a designated container. During the extraction process, the mixture of the two-phase extraction is mechanically stirred by the stirring power device 18 with the stirring blades 8, or the compressed gas valve is opened, according to the process requirements or extraction strategy. Compressed gas is introduced and agitated through compressed air coil 4. After the extraction process is completed according to the process requirements or extraction strategy, the extract outlet valve is opened and the extract outlet pump 33 is started. The extract first passes through filter screen 5 to remove the residue, and then passes through extract outlet pipe 3 to pump the two-phase extraction mixture into separatory tank 46. After the extract in the separatory tank is drained, the slag discharge cover cylinder 9 is activated to open the slag discharge cover 2 and drain the residue from the separatory tank. The separatory tank cooling device 36 is then activated, and the coolant is circulated through refrigerant pipeline 40 to cool the separatory tank to ensure uniform cooling of the extract. The mixing device 48 of the separatory tank can be started to drive the mixing blades to rotate and stir the extract. The two-phase extract is cooled to the set temperature, the stirring is stopped, and the mixture is allowed to stand until it reaches the required state. The lower layer separator discharge valve is opened and the lower layer separator discharge pump is started to pump the lower layer separator into the designated position. After the lower layer separator is pumped out, the lower layer separator discharge valve is closed and the lower layer separator discharge pump is stopped. The upper layer separator discharge valve is opened and the upper layer separator discharge pump is started to pump the upper layer separator into the designated position. After the upper layer separator is pumped out, the upper layer separator discharge valve is closed and the upper layer separator discharge pump is stopped.

[0027] In one embodiment, the multifunctional extraction device for spices is further equipped with a vacuum device (such as a vacuum pump) connected to a coil condenser, a separating tank, and an extraction tank via pipelines. The vacuum device can extract air from the extraction tank and the coil condenser, or switch to extract air from the separating tank. The vacuum lowers the extraction boiling point, and the negative pressure can also draw liquid from the extraction tank into the separating tank. When extracting under negative pressure, the compressed air coil is not turned on, i.e., the pneumatic agitator is turned off. When extracting material through vacuum, the material pump is not started, and the material is transported through a separate material channel.

[0028] In one embodiment, the filter screen can be replaced with a different mesh size filter screen before use, depending on the particle size of the extracted material.

[0029] In another embodiment, a control method for a multifunctional extraction device for spices is also provided. This control method controls the multifunctional extraction device for spices and includes the following steps: S100. Add the specified amount of material to the extraction tank, and set or select the initial parameters of the extraction tank according to the properties of the material. The initial parameters include at least the solubility curve of the substance, the stirring speed parameter, the number and duration of airflow stirring intervals, the ultrasonic power parameter or working mode, and the total extraction time. S200: After the extraction tank is preheated to the specified temperature, the extraction pretreatment control is performed. S300: After the extraction pretreatment is completed, the extraction strategy is executed to extract the material. During the extraction process, volatile substances are collected through the condensation reflux branch. S400 After the total extraction time is completed, stop the extraction and drain the extract into the separatory tank, allowing the extract to be separated and collected at the set temperature.

[0030] The aforementioned technical features employ high and low temperature devices to heat and cool the extraction tank, ensuring precise temperature control during the material extraction process. Simultaneously, a combination of mechanical stirring and airflow stirring is used in the extraction tank to ensure sufficient and rational flow of the material during the extraction process.

[0031] In one embodiment, the extraction preprocessing control includes: Set the temperature of the extraction tank to 50%~60% of the solvent's boiling point; Start the stirring blades and set the stirring blade speed to the preset fast value to mechanically stir the material through the stirring blades; During the stirring process, the compressed air coil is intermittently activated to introduce compressed air from the bottom of the extraction tank for airflow stirring. During the stirring process, the ultrasonic device is activated. When the stirring blade speed is greater than the first set speed, the power of the ultrasonic device is controlled within the pre-treatment power value. After mechanical stirring for a preset time, the extraction pretreatment is completed.

[0032] The extraction pretreatment involves dispersing and initially dissolving the material, breaking up material clumps, and ensuring uniform solvent penetration, thus preparing for subsequent extraction.

[0033] For example, the pretreatment time can be 0-15 minutes in the early stage, and the temperature of the extraction tank during pretreatment can be set to 50%-60% of the solvent boiling point (e.g., 30-40℃ for aqueous solutions) to avoid premature dissolution of impurities; Then, a high-speed mechanical stirring + intermittent airflow mode is adopted: that is, mechanical stirring at 100~120r / min, combined with 0.1~0.12MPa compressed air pulse bubbling (bubbling for 30s every 3min) to quickly disperse the material; Simultaneously, low-power pretreatment (300~500W, 20kHz) and pulse operation (ultrasound for 5s / stop for 5s) are used to initially break down the surface structure of the material without initiating strong cavitation (to avoid fine particle agglomeration).

[0034] During the linkage process, when the mechanical stirring speed is ≥100r / min, the ultrasonic power is automatically limited to within 500W to prevent the superposition of high shear and ultrasonic waves from causing excessive crushing of materials.

[0035] In one embodiment, the extraction strategy includes: Based on the pretreatment temperature, the extraction tank is gradually heated according to the solubility curve of the substance, with the maximum temperature not exceeding the critical temperature. T o At the same time, the power of the ultrasound device is increased based on the processed power value, but the power does not exceed the maximum threshold. When the temperature of the extraction tank is ≥ T 0 When the speed is ×80%, the stirring blade speed will decrease by 10%~20%; When the power of the ultrasonic device is greater than or equal to the first adjustment value, the airflow stirring pressure of the compressed air is reduced; if the ultrasonic device detects a decrease in cavitation efficiency, the stirring speed of the stirring blades is increased by 5% to 10%. After the extraction time is completed, subsequent purification is carried out.

[0036] The aforementioned technical features can enhance dissolution and mass transfer, maximize the dissolution of effective components through the synergy of the three, and control energy consumption and component stability at the same time.

[0037] For example, the extraction strategy can be executed in the middle 15~80 minutes. When executing the extraction strategy, the temperature gradient is set according to the solubility curve of the substance (e.g., 5°C every 10 minutes, not exceeding the critical temperature T0, such as T0=60°C for heat-sensitive substances). The ultrasonic power is increased synchronously with the temperature (100~150W for every 5°C increase in temperature, with an upper limit of 1000W). The high temperature is used to reduce the viscosity of the solvent and enhance the ultrasonic cavitation intensity. By leveraging the synergistic effect of temperature and stirring, when the temperature is ≥T0×80% (e.g., ≥48℃ when T0=60℃), the stirring speed is reduced by 10%~20% (from 120r / min to 100r / min) to avoid component oxidation caused by high shear at high temperatures; Simultaneously, ultrasonic stirring dynamic balancing is performed: when the ultrasonic power is ≥800W, the airflow stirring pressure is reduced by 0.02~0.03MPa (from 0.15MPa to 0.12MPa), reducing the scattering of ultrasonic waves by bubbles; if the ultrasonic detection shows a decrease in cavitation efficiency (monitored by an acoustic impedance sensor), the stirring speed is increased by 5%~10%, and cavitation nuclei are replenished through fluid disturbance.

[0038] For example, when extracting capsanthin (T0=70℃), the temperature increases from 40℃ to 50℃ to 60℃ to 70℃ (every 15 min), the ultrasonic power increases synchronously from 500W to 650W to 800W to 950W, the stirring speed increases from 120 r / min to 110 r / min to 100 r / min to 90 r / min, and the gas pressure increases from 0.15 MPa to 0.14 MPa to 0.13 MPa to 0.12 MPa.

[0039] In one embodiment, the subsequent purification involves gradually reducing the temperature of the extraction tank to T0×60%, reducing the power of the ultrasonic device to a low-power mode, reducing the speed of the stirring blades, and continuously introducing compressed air.

[0040] The above embodiments can stabilize the components and reduce impurities, reduce the dissolution of impurities, and maintain the stability of the extracted components.

[0041] For example, the later purification time is 80~100 minutes. During the process, the temperature is gradually reduced to T0×60% (e.g., from 70℃ to 42℃) to inhibit the subsequent dissolution of impurities (such as macromolecular polysaccharides). The power of the ultrasonic device is reduced to 300~500W and switched to low frequency mode (15kHz) to reduce mechanical damage to the dissolved components. At the same time, the stirring adopts the "low speed + continuous airflow" mode, that is, mechanical stirring at 60~80r / min and airflow pressure at 0.08MPa to maintain the homogeneity of the solution but avoid violent disturbance.

[0042] During the control process, when the temperature is ≤T0×50%, the ultrasonic treatment will automatically stop, and only stirring will be maintained to keep the suspension and prevent the extracted components from settling.

[0043] In one embodiment, the method for discharging the extract into a separatory tank and allowing the extract to be separated and collected at a set temperature is as follows: The extract discharge pump is started, and the extract first passes through a filter screen, then through the extract discharge pipeline, pumping the two-phase extract mixture into the separatory tank; the separatory cooling device is started, and the coolant is used to cool the separatory tank through a refrigerant circulation pipeline; the separatory tank stirring device is started, and after the two-phase extract is cooled to the set temperature, stirring is stopped, and the mixture is allowed to stand until it reaches the required process temperature; the discharge valve of the lower layer separatory pipeline is opened, and the discharge pump of the lower layer separatory pipeline is started to pump the lower layer separatory liquid to a designated location; after the lower layer separatory liquid is pumped out, the discharge valve of the lower layer separatory liquid is closed, and the discharge pump of the lower layer separatory liquid is stopped; the discharge valve of the upper layer separatory liquid is opened, and the discharge pump of the upper layer separatory liquid is started to pump the upper layer separatory liquid to a designated location; after the upper layer separatory liquid is pumped out, the discharge valve of the upper layer separatory liquid is closed, and the discharge pump of the upper layer separatory liquid is stopped.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional extraction device for spices, comprising an extraction tank, wherein the upper part of the extraction tank is provided with a feeding manhole and a feeding pipe, and the lower part is provided with a slag discharge port and an extract outlet pipe, and a slag discharge cover is provided at the slag discharge port; characterized in that: The extraction tank has a volatile gas collection module extending from the top, and the volatile gas collection module is equipped with a reflux branch connected to the extraction tank. The extraction tank is also equipped with stirring blades and an ultrasonic device that act inside the tank, and a separatory tank is connected from the extract outlet pipe at the bottom. Each of the separating tank, extraction tank, and volatile gas collection module is individually equipped with a temperature control module; The temperature control module, stirring blades, and ultrasonic device of the extraction tank extract the material according to the extraction strategy.

2. The multifunctional extraction device for spices according to claim 1, characterized in that: The volatile gas collection module includes a volatile gas branch, which is sequentially connected to a tube-and-tube cold shower, a coil-and-tube cold shower, a liquid separator, and a collection tank. One end of the reflux branch is connected to the separator, and the other end is connected to the extraction tank; The temperature control module of the volatile gas collection module is a cooling device that acts on the tube-and-shell cooler and the coil cooler.

3. The multifunctional extraction device for spices according to claim 1, characterized in that: A compressed air coil is installed at the bottom inside the extraction tank, and the coil is connected to a compressed air source through a pipe equipped with a valve.

4. The multifunctional extraction device for spices according to claim 1, characterized in that: The temperature control module of the extraction tank includes a temperature sensor, a temperature control layer, a heat insulation layer, and a high-low temperature integrated machine. The sensor is installed in the extraction tank and collects the temperature of the extraction tank. The temperature control layer acts on the extraction tank and is controlled by the high-low temperature integrated machine. The heat insulation layer is located around the temperature control layer. The high-low temperature integrated machine controls the temperature of the medium and then acts on the temperature control layer.

5. The multifunctional extraction device for spices according to claim 1, characterized in that: The separator is equipped with a separatory stirring blade, and a separatory pipeline is provided at the liquid outlet at the bottom of the separator. The separatory pipeline includes an upper separatory liquid pipeline and a lower separatory liquid pipeline. The control module of the dispensing tank includes a temperature dispensing tank sensor, a temperature control layer for the dispensing tank, a heat insulation layer for the dispensing tank, and a dispensing cooling device. The temperature dispensing tank sensor is installed on the dispensing tank and collects the temperature of the dispensing tank. The temperature control layer acts on the dispensing tank and is controlled by the dispensing cooling device. The heat insulation layer for the dispensing tank is located outside the temperature control layer for the dispensing tank. The dispensing cooling device controls the temperature of the medium and then acts on the temperature control layer for the dispensing tank.

6. A control method for a multifunctional extraction device for spices, characterized in that, The control method is used to control a multifunctional extraction device for spices as described in any one of claims 1-5, and the control method includes the following steps: Add a specified amount of material to the extraction tank, and set or select the initial parameters of the extraction tank according to the properties of the material. The initial parameters include at least the solubility curve of the substance, the stirring speed parameter, the number and duration of airflow stirring intervals, the ultrasonic power parameter or working mode, and the total extraction time. After the extraction tank is preheated to the specified temperature, extraction pretreatment control is performed. After the extraction pretreatment is completed, the extraction strategy is executed to extract the material. During the extraction process, volatile substances are collected through the condensation reflux branch. After the total extraction time is completed, stop the extraction and drain the extract into a separatory tank, allowing the extract to be separated and collected at the set temperature.

7. The control method for a multifunctional extraction device for spices according to claim 6, characterized in that, Extraction preprocessing controls include: Set the temperature of the extraction tank to 50%~60% of the solvent's boiling point; Start the stirring blades and set the stirring blade speed to the preset fast value to mechanically stir the material through the stirring blades; During the stirring process, the compressed air coil is intermittently activated to introduce compressed air from the bottom of the extraction tank for airflow stirring. During the stirring process, the ultrasonic device is activated. When the stirring blade speed is greater than the first set speed, the power of the ultrasonic device is controlled within the pre-treatment power value. After mechanical stirring for a preset time, the extraction pretreatment is completed.

8. The control method for a multifunctional extraction device for spices according to claim 6, characterized in that, The extraction strategy includes: Based on the pretreatment temperature, the extraction tank is gradually heated according to the solubility curve of the substance, with the maximum temperature not exceeding the critical temperature. T o At the same time, the power of the ultrasound device is increased based on the processed power value, but the power does not exceed the maximum threshold. When the temperature of the extraction tank is ≥ T 0 When the speed is ×80%, the stirring blade speed will decrease by 10%~20%; When the power of the ultrasonic device is greater than or equal to the first adjustment value, the airflow stirring pressure of the compressed air is reduced; if the ultrasonic device detects a decrease in cavitation efficiency, the stirring speed of the stirring blades is increased by 5% to 10%. After the extraction time is completed, subsequent purification is carried out.

9. The control method for a multifunctional extraction device for spices according to claim 8, characterized in that, The subsequent purification involves gradually reducing the temperature of the extraction tank to T0×60%, lowering the power of the ultrasonic device to a low-power mode, reducing the speed of the stirring blades, and continuously introducing compressed air.

10. The control method for a multifunctional extraction device for spices according to claim 6, characterized in that, The method for separating and collecting the extract in a separatory tank at a set temperature is as follows: Start the extract discharge pump; the extract first passes through a filter screen, then through the extract discharge pipeline, pumping the two-phase extract mixture into the separatory tank. Start the separatory cooling equipment; the coolant circulates through the refrigerant pipeline to cool the separatory tank. Start the separatory tank stirring device; after the two-phase extract reaches the set temperature, stop stirring and allow it to stand until it reaches the required process temperature. Then, open the discharge valve of the lower layer separator pipeline and start the lower layer separator pump to pump the lower layer separator to the designated location. After the lower layer separator is pumped out, close the discharge valve and stop the lower layer separator pump. Next, open the discharge valve of the upper layer separator pipeline and start the upper layer separator pump to pump the upper layer separator to the designated location. After the upper layer separator is pumped out, close the discharge valve and stop the upper layer separator pump.

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