TWI864515B - Continuous high pressure extraction system - Google Patents

Abstract

A continuous high pressure extraction system includes at least one continuous high pressure extraction device, which includes a housing, a feed component, a compression screw, and a delivery system. The housing includes a first end portion and a second end portion. The housing has an accommodating space and extraction ports. The feeding component is disposed on the housing and adjacent to the first end portion. The compression screw is disposed in the accommodating space, and can push a raw material to be extracted toward the second end portion. The compression screw includes a compression section and an extraction section. The compression screw includes a main body with a first end and a second end protruding from the first end portion and the second end portion, and a helical blade assembly is arranged on the main body. The compression screw has a channel and fluid outlets. The channel extends in the main body from the first end toward the second end and can receive an extraction fluid. The fluid outlets are located in the main body at the extraction section and allow the extraction fluid to flow out of the main body. The delivery system introduces the extraction fluid into the channel.

Description

Continuous High Pressure Extraction System

The present disclosure relates to an extraction technology, and more particularly to a continuous high-pressure extraction system.

Among food and extraction equipment, pressure extraction equipment has attracted attention due to its high extraction and dissolution efficiency. Current high-pressure dissolution and extraction equipment can only perform extraction processes in a segmented manner, and cannot continuously extrude powdered and granular raw materials, or perform solid component dissolution processing with cold or hot liquids or gases. Therefore, these high-pressure dissolution and extraction equipment cannot be efficiently and continuously produced, which has a negative impact on production capacity.

Therefore, there is an urgent need for a pressure extraction device design to improve the problems of the current process and enhance the extraction efficiency.

Therefore, one of the purposes of the present disclosure is to provide a continuous high-pressure extraction system, wherein the compression screw of the continuous high-pressure extraction device can continuously compress extracts such as powders and branches and leaves, and the rotational compression of the compression screw can effectively destroy the surface structure of the extract, thereby increasing the extraction efficiency.

Another object of the present disclosure is to provide a continuous high-pressure extraction system, wherein the compression screw has a channel and a fluid outlet, and the extraction fluid can flow out from the fluid outlet of the extraction section of the compression screw through the channel and pass through the compressed raw material to be extracted to extract soluble substances. In addition, the extraction fluid containing the extracted soluble substances can be circulated to the channel again for extraction. Therefore, the continuous high-pressure extraction system can perform a continuous high-pressure extraction process.

Another object of the present disclosure is to provide a continuous high-pressure extraction system, which may include a plurality of continuous high-pressure extraction devices connected in series. The extraction fluid after extraction in the upstream continuous high-pressure extraction device can enter the channel of the compression screw of the next continuous high-pressure extraction device for extraction, thereby achieving continuous operation of raw material processing.

According to the above-mentioned purpose of the present disclosure, a continuous high-pressure extraction system is proposed. This continuous high-pressure extraction system includes at least one continuous high-pressure extraction device. Each continuous high-pressure extraction device includes a shell, a feed assembly, a compression screw, and a conveying system. The shell includes a first end and a second end opposite to each other. The shell has a accommodating space and a plurality of extraction ports. The feed assembly is disposed on the shell and is adjacent to the first end. The raw material to be extracted enters the accommodating space through the feed assembly. The compression screw is disposed in the accommodating space and is configured to push the raw material to be extracted toward the second end. The compression screw includes a compression section and an extraction section. The compression screw includes a main body having a first end and a second end protruding from the first end and the second end respectively, and a spiral blade assembly arranged on the outer side surface of the main body. The compression screw has a channel and a plurality of fluid outlets. The channel extends in the main body from the first end toward the second end and is configured to receive the extraction fluid. The fluid outlet is arranged in the main body of the extraction section and is configured to allow the extraction fluid to flow out of the main body. The conveying system is configured to guide the extraction fluid into the channel. The extraction port is located at the outer periphery of the extraction section so that the extraction fluid passing through the raw material to be extracted can flow out of the outer shell and enter the conveying system.

According to one embodiment of the present disclosure, the radial dimension of the main body outside the compression section gradually increases from the first end to the extraction section.

According to an embodiment of the present disclosure, the spiral blade assembly includes a first spiral blade disposed on the main body of the compression section, and a second spiral blade disposed on the main body of the extraction section. A check ring is further disposed on the inner side of the outer shell, the check ring being disposed between the first spiral blade and the second spiral blade and configured to prevent the raw material to be extracted from entering the extraction section from flowing back to the compression section. The fluid outlet is arranged along the spiral of the second spiral blade.

According to one embodiment of the present disclosure, the delivery system is further configured to deliver the extraction fluid flowing out of the housing to the channel through the first end.

According to one embodiment of the present disclosure, the compression screw includes a segmented valve disposed in the channel of the extraction section to separate the channel into a first section and a second section. The delivery system is further configured to deliver the extraction fluid flowing out of the housing to the second section of the channel through the second end.

According to one embodiment of the present disclosure, the at least one continuous high-pressure extraction device further comprises a flow splitter assembly disposed around the outer shell of the extraction section. The flow splitter assembly is configured to separate the extraction fluid flowing out of the first section from the extraction fluid flowing out of the second section.

According to one embodiment of the present disclosure, the at least one continuous high-pressure extraction device further comprises a temperature control jacket disposed outside the outer shell of the extraction section. The temperature control jacket is configured to control the temperature of the extraction fluid flowing out of the outer shell.

According to one embodiment of the present disclosure, the extraction port is a plurality of mesh outlets for filtering the extraction fluid.

According to an embodiment of the present disclosure, the number of the at least one continuous high-pressure extraction device is several, and these continuous high-pressure extraction devices are connected in series in sequence. The extraction fluid flowing out of one continuous high-pressure extraction device is introduced into the channel of another continuous high-pressure extraction device through the conveying system of the other continuous high-pressure extraction device.

The following is a detailed discussion of the embodiments of the present disclosure. However, it is understood that the embodiments provide many applicable concepts that can be implemented in a variety of specific contexts. The embodiments discussed and disclosed are for illustration only and are not intended to limit the scope of the present disclosure. All embodiments of the present disclosure disclose a variety of different features, but these features can be implemented separately or in combination as needed.

In addition, the terms "first", "second", etc. used herein do not specifically refer to order or sequence, but are only used to distinguish between elements or operations described with the same technical terms. In addition, the spatial relationship between two elements described in the present disclosure is applicable not only to the orientations shown in the drawings, but also to orientations not shown in the drawings, such as inverted orientations.

Please refer to Figures 1 to 4, which respectively show a three-dimensional schematic diagram, a cross-sectional schematic diagram, and a perspective schematic diagram of a continuous high-pressure extraction device according to one embodiment of the present disclosure at two viewing angles. The continuous high-pressure extraction system of the present disclosure may include a single continuous high-pressure extraction device 100, or may include a plurality of continuous high-pressure extraction devices 100 connected in series. The continuous high-pressure extraction device 100 can be applied to powder extraction, particle extraction, and steam extraction. Each continuous high-pressure extraction device 100 can mainly include an outer shell 110, a feed assembly 120, a compression screw 130, and a conveying system 140 (as shown in Figure 6).

As shown in FIG. 1 and FIG. 2 , the outer shape of the housing 110 may be, for example, cylindrical. The housing 110 includes a first end 111 and a second end 112 that are opposite to each other. As shown in FIG. 3 , a containing space 113 is provided in the housing 110, and the first end 111 and the second end 112 are located on opposite sides of the containing space 113. As shown in FIG. 4 , the housing 110 is further provided with a plurality of extraction ports 114, and these extraction ports 114 are connected to the containing space 113. In some embodiments, these extraction ports 114 are arranged in a ring manner on the housing 110. The extraction ports 114 may be openings of any suitable shape. For example, each extraction port 114 may be a strip-shaped opening extending along the length direction of the housing 110. The extraction port 114 allows the extraction fluid to flow out of the housing 110 through the raw material to be extracted. The extraction port 114 can be, for example, a mesh outlet, through which the extraction fluid can be filtered. The housing 110 is further provided with an extraction fluid outlet 116. The extraction port 114 is connected to the extraction fluid outlet 116, and the extraction fluid flowing out of the extraction port 114 can flow out through the extraction fluid outlet 116.

The feed assembly 120 is disposed on the housing 110 and adjacent to the first end 111. The raw material to be extracted enters the accommodating space 113 of the housing 110 through the feed assembly 120, that is, the feed assembly 120 is connected to the accommodating space 113. In some embodiments, the feed assembly 120 is funnel-shaped to facilitate the feeding of the raw material to be extracted.

The compression screw 130 is mainly disposed in the accommodating space 113 of the outer shell 110. The compression screw 130 can push the raw material to be extracted introduced into the accommodating space 113 from the first end 111 of the outer shell 110 toward the second end 112. During the pushing process, the compression screw 130 can squeeze the raw material to be extracted and compact the raw material to be extracted. In addition, the rotational compression of the compression screw 130 can also destroy the surface structure of the raw material to be extracted, thereby increasing the extraction efficiency. Please refer to FIG. 5, which is a side view schematic diagram of a compression screw according to an embodiment of the present disclosure. The compression screw 130 can be mainly divided into a compression section 130a and an extraction section 130b which are connected to each other, wherein the compression section 130a is adjacent to the first end 111, and the extraction section 130b is adjacent to the second end 112. The compression section 130a is mainly used to push and compress the raw material to be extracted. The extraction section 130b is mainly used to continue to push the raw material to be extracted and extract the raw material to be extracted through the extraction fluid. Therefore, the extraction port 114 of the housing 110 is located at the periphery of the extraction section 130b, so that the extraction fluid of the raw material to be extracted through the extraction section 130b can flow out of the housing 110.

The compression screw 130 may mainly include a main body 131 and a spiral blade assembly 132. The main body 131 has a first end 131a and a second end 131b opposite to each other. The main body 131 passes through the entire accommodating space 113, and the first end 131a and the second end 131b protrude from the first end 111 and the second end 112 respectively. The main body 131 may have a consistent outer radial dimension in the accommodating space 113, or may have a variable outer radial dimension. In some embodiments, as shown in FIG. 5, the outer radial dimension of the main body 131 in the compression section 130a gradually increases from the first end 131a to the extraction section 130b, and the outer radial dimension of the main body 131 in the extraction section 130b is substantially consistent.

The spiral blade assembly 132 is spirally disposed on the outer side surface of the main body 131. When the compression screw 130 is driven to rotate, the spiral blade assembly 132 can be used to push the raw material to be extracted. In some embodiments, as shown in Figure 5, the spiral blade assembly 132 includes a first spiral blade 132a and a second spiral blade 132b. The first spiral blade 132a is spirally disposed on the outer side surface of the main body 131 of the compression section 130a, and the second spiral blade 132b is spirally disposed on the outer side surface of the main body 131 of the extraction section 130b. The pitch of the first spiral blade 132a can be consistent or different. On the other hand, the pitch of the second spiral blade 132b can also be consistent or different. The pitch of the first spiral blade 132a and the second spiral blade 132b can be designed according to different raw materials to be extracted. In the embodiment shown in Figure 5, the pitch of the second spiral blade 132b is smaller than the pitch of the first spiral blade 132a.

In some embodiments, as shown in FIG. 3 , a check ring 115 is further provided on the inner side surface of the outer shell 110. The check ring 115 may be, for example, disposed around the inner side surface of the outer shell 110. The check ring 115 is disposed between the first spiral blade 132a and the second spiral blade 132b, and may extend from the inner side surface of the outer shell 110 in a direction from the compression section 130a to the extraction section 130b. The check ring 115 may prevent the raw material to be extracted that has entered the extraction section 130b from flowing back to the compression section 130a.

Please refer to FIG. 3 and FIG. 5 simultaneously. The compression screw 130 is provided with a channel 133 and a plurality of fluid outlets 134. The channel 133 is provided in the main body 131 and extends from the first end 131a of the main body 131 toward the second end 131b. The channel 133 can receive the extraction fluid and allow the extraction fluid to flow therein. The fluid outlets 134 are provided in the main body 131 of the extraction section 130b. These fluid outlets 134 are connected to the channel 133. Therefore, after the extraction fluid enters the channel 133, it can flow out of the main body 131 through the fluid outlet 134 of the extraction section 130b. The fluid outlets 134 are arranged along the spiral of the second spiral blade 132b. For example, the fluid outlet 134 can be arranged along the second spiral blade 132b between the spiral pitches of the second spiral blade 132b, such as on the main body 131 in the middle of the spiral pitch. Therefore, the direction of the fluid outlet 134 is arranged 360 degrees along the circumference of the housing 110. The compression screw 130 can adjust the length, the pitch of the spiral blade, and the outlet position of the extraction fluid according to the extraction process.

The compression screw 130 can be driven by a driving source. In some embodiments, the continuous high-pressure extraction device 100 further includes a driving module 150 to drive the compression screw 130 to rotate. In some embodiments, please refer to FIG. 1 , the driving module 150 includes a motor 152 and a belt 154. The belt 154 connects the first end 131a of the main body 131 and the motor 152, whereby the operation of the motor 152 can drive the belt 154, and drive the compression screw 130 to rotate through the first end 131a of the main body 131. In this embodiment, the compression screw 130 can be driven by different components, for example, the motor 152 can directly drive the compression screw 130, or the motor 152 can drive the compression screw 130 by driving a gear set.

2 and 5, a slag discharge port EX is provided between the second end 131b of the main body 131 of the compression screw 130 and the second end 112 of the housing 110. The slag discharge port EX is connected to the accommodation space 113 of the housing 110, and the residue after extraction is pushed by the compression screw 130 and continuously discharged and collected from the slag discharge port EX in a state close to dehydration.

Please refer to FIG. 3 and FIG. 4 , in some embodiments, the continuous high-pressure extraction device 100 further includes a temperature control jacket 160. The temperature control jacket 160 is disposed around the outer shell 110 located at the extraction section 130b. Thus, the temperature of the extraction fluid flowing out of the outer shell 110 from the extraction section 130b can be controlled by the temperature control jacket 160. For example, the temperature control jacket 160 has an annular flow channel 161, a fluid inlet 162, and a fluid outlet 163. The annular flow channel 161 surrounds the outer shell 110. The fluid inlet 162 and the fluid outlet 163 are connected to the annular flow channel 161. The fluid inlet 162 and the fluid outlet 163 can be arranged diagonally. For example, as shown in Fig. 4, the fluid inlet 162 is located at the lower left, and the fluid outlet 163 is located at the upper right. A cooling or heating fluid, such as water or steam, can enter the annular flow channel 161 from the fluid inlet 162, exchange heat with the extraction fluid to cool or heat the extraction fluid, and then flow out from the fluid outlet 163.

Please refer to Figures 4 and 6 together, wherein Figure 6 is a schematic diagram showing an operation of a continuous high-pressure extraction device according to an embodiment of the present disclosure. The delivery system 140 of the continuous high-pressure extraction device 100 can introduce the extraction fluid into the channel 133 of the compression screw 130. In some embodiments, the delivery system 140 includes a storage tank 141 and a pump 142. The storage tank 141 stores the extraction fluid, such as extraction liquid or extraction vapor. The temperature of the extraction fluid can be adjusted according to different extraction processes. The pump 142 is connected to the storage tank 141 through a pipeline, and the extraction fluid in the storage tank 141 can be continuously pumped to the channel 133.

When the extraction process is performed on the raw material to be extracted, the raw material to be extracted can be introduced into the accommodating space 113 of the outer shell 110 through the feed assembly 120. At the same time, the compression screw 130 is used to continuously push and compress the raw material to be extracted in the direction of the second end 112 of the outer shell 110. The pump 142 is then used to introduce the extraction fluid from the first end 131a of the main body 131 of the compression screw 130 into the channel 133. After the extraction fluid passes through the channel 133 and the fluid outlet 134 and passes through the compressed raw material to be extracted in the extraction section 130b, after extracting the soluble substances in the raw material to be extracted, it flows to the extraction fluid outlet 116 through the extraction port 114 and then flows back into the storage tank 141. The extraction fluid flowing back to the storage tank 141 can be pumped again by the pump 142 through the first end 131a of the main body 131 of the compression screw 130 to the channel 133 to repeat the extraction. The continuous high-pressure extraction device 100 can change the parameters such as the propulsion speed relative to the raw material to be extracted and the flow rate of the extraction fluid according to the characteristics of different raw materials to be extracted.

The extraction fluid is output to the appropriate compression level section of the raw material to be extracted through the channel 133 of the compression screw 130 and the fluid outlet 134, and the extraction can be performed under the optimized pressure ratio of the raw material to be extracted and the extraction fluid. Therefore, the extraction efficiency can be effectively improved to achieve a nearly complete extraction effect.

The fluid inlet 162 and the fluid outlet 163 of the temperature control jacket 160 can be respectively connected to another storage tank 164. The storage tank 164 stores liquid or gas to cool or heat the extraction fluid. During the extraction process, the storage tank 164 can supply the temperature control fluid to the annular flow channel 161 through the fluid inlet 162, and receive the temperature control fluid after temperature exchange through the fluid outlet 163.

Please refer to FIG. 3 and FIG. 7 simultaneously, wherein FIG. 7 is a schematic diagram showing another operation of a continuous high-pressure extraction device according to an embodiment of the present disclosure. In this embodiment, the compression screw 130 includes a segmented valve 135. The segmented valve 135 is disposed in the channel 133 of the extraction section 130b of the compression screw 130 to separate the channel 133 into a first section 133a and a second section 133b. In addition, the delivery system 140a includes a storage tank 141, and two pumps 142 and 143. The pump 142 can be used to pump the extraction fluid in the storage tank 141 to the first section 133a of the channel 133 through the first end 131a of the main body 131. The pump 143 can transfer the extraction fluid flowing out of the housing 110 from the first section 133a of the channel 133 to the second section 133b of the channel 133 through the second end 131b.

In this embodiment, the continuous high-pressure extraction device 100 further includes a flow splitter assembly 170. The flow splitter assembly 170 is disposed around the outer shell 110 located at the extraction section 130b. The flow splitter assembly 170 includes two separated flow channels 171 and 172, wherein the flow channel 171 can receive the extraction fluid flowing out of the shell 110 from the first section 133a of the channel 133, and the flow channel 172 can receive the extraction fluid flowing out of the shell 110 from the second section 133b of the channel 133. In this way, the flow splitter assembly 170 can separate the extraction fluid flowing out of the first section 133a from the extraction fluid flowing out of the second section 133b.

In this embodiment, the housing 110 is further provided with another extraction fluid outlet 117. The flow channels 171 and 172 are connected to the extraction fluid outlets 117 and 116, respectively. The pump 143 can transfer the extraction fluid flowing out of the housing 110 from the first section 133a of the channel 133 to the second section 133b of the channel 133 through the second end 131b. In this way, the residual liquid in the raw material to be extracted can be squeezed out by a higher pressure behind the compression screw 130, and the squeezed liquid is then pushed into the storage tank 141 of the conveying system 140a. This embodiment can realize the process requirements of segmented extraction.

The continuous high-pressure extraction system may include a plurality of continuous high-pressure extraction devices 100 connected in series. Please refer to FIG8 , which is a schematic diagram showing an operation of a continuous high-pressure extraction system according to an embodiment of the present disclosure. The continuous high-pressure extraction system 200 includes two continuous high-pressure extraction devices 100 connected in series. After the extraction fluid of the upstream continuous high-pressure extraction device 100 extracts the soluble substances in the raw material to be extracted, it flows out from the extraction fluid outlet 116 and is introduced into the channel 133 of the downstream continuous high-pressure extraction device 100 through the pump 142 of the conveying system 140 of the downstream continuous high-pressure extraction device 100. In this way, a continuous series extraction process can be realized.

From the above-mentioned implementation method, it can be seen that one of the advantages of the present disclosure is that the compression screw of the continuous high-pressure extraction device of the present disclosure can continuously compress extracts such as powders and branches and leaves, and the rotational compression of the compression screw can effectively destroy the surface structure of the extract, thereby increasing the extraction efficiency.

Another advantage of the present disclosure is that the compression screw of the continuous high-pressure extraction device of the present disclosure has a channel and a fluid outlet, and the extraction fluid can flow out from the fluid outlet of the extraction section of the compression screw through the channel and pass through the compressed raw material to be extracted to extract soluble substances. In addition, the extraction fluid containing the extracted soluble substances can be circulated to the channel again for extraction. Therefore, the continuous high-pressure extraction system can perform a continuous high-pressure extraction process.

Another advantage of the present disclosure is that the continuous high-pressure extraction system of the present disclosure can include a plurality of continuous high-pressure extraction devices connected in series, and the extraction fluid after extraction in the upstream continuous high-pressure extraction device can enter the channel of the compression screw of the next continuous high-pressure extraction device for extraction, thereby achieving continuous operation of raw material processing.

Although the present disclosure has been disclosed as above by way of embodiments, it is not intended to limit the present disclosure. Anyone with ordinary knowledge in this technical field may make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the definition of the attached patent application scope.

100: Continuous high-pressure extraction device 110: Housing 111: First end 112: Second end 113: Accommodation space 114: Extraction port 115: Check ring 116: Extraction fluid outlet 117: Extraction fluid outlet 120: Feed assembly 130: Compression screw 130a: Compression section 130b: Extraction section 131: Main body 131a: First end 131b: Second end 132: Spiral blade assembly 132a: First spiral blade 132b: Second spiral blade 133: Channel 133a: First section 133b: Second section 134: Fluid outlet 135: Sectional valve 140: conveying system 140a: conveying system 141: storage tank 142: pump 143: pump 150: drive module 152: motor 154: belt 160: temperature control jacket 161: annular flow channel 162: fluid inlet 163: fluid outlet 164: storage tank 170: flow diversion assembly 171: flow channel 172: flow channel 200: continuous high pressure extraction system EX: slag outlet

The following detailed description in conjunction with the accompanying drawings will provide a better understanding of the present disclosure. It should be noted that, in accordance with standard industry practice, the features are not drawn to scale. In fact, the dimensions of the features may be increased or decreased at will to make the discussion clearer. [FIG. 1] is a three-dimensional schematic diagram showing one perspective of a continuous high-pressure extraction device according to one embodiment of the present disclosure. [FIG. 2] is a three-dimensional schematic diagram showing another perspective of a continuous high-pressure extraction device according to one embodiment of the present disclosure. [FIG. 3] is a cross-sectional schematic diagram showing a continuous high-pressure extraction device according to one embodiment of the present disclosure. [FIG. 4] is a perspective schematic diagram showing a continuous high-pressure extraction device according to one embodiment of the present disclosure. [Figure 5] is a schematic diagram showing a side view of a compression screw according to an embodiment of the present disclosure. [Figure 6] is a schematic diagram showing an operation of a continuous high-pressure extraction device according to an embodiment of the present disclosure. [Figure 7] is a schematic diagram showing another operation of a continuous high-pressure extraction device according to an embodiment of the present disclosure. [Figure 8] is a schematic diagram showing an operation of a continuous high-pressure extraction system according to an embodiment of the present disclosure.

Domestic storage information (please note in the order of storage institution, date, and number) None Foreign storage information (please note in the order of storage country, institution, date, and number) None

100: Continuous high pressure extraction device

110: Shell

111: First end

112: Second end

113: Storage space

115: Check loop

116: Extraction fluid outlet

117: Extraction fluid outlet

120: Feeding assembly

130: Compression screw

130a: Compression section

130b: Extraction section

131: Subject

131a: First end

131b: Second end

133: Channel

133a: First paragraph

133b: Second paragraph

135: Sectional valve

160: Temperature control jacket

161: Annular flow channel

162: Fluid inlet

163: Fluid outlet

170: Shunt assembly

171: Runner

172: Runner

Claims (8)

A continuous high-pressure extraction system comprises: at least one continuous high-pressure extraction device, wherein each of the at least one continuous high-pressure extraction devices comprises: a housing, comprising a first end and a second end opposite to each other, wherein the housing has a containing space and a plurality of extraction ports; a feed assembly, disposed on the housing and adjacent to the first end, wherein a raw material to be extracted enters the containing space through the feed assembly; a compression screw, disposed in the containing space and configured The compression screw is configured to push the raw material to be extracted toward the second end, wherein the compression screw includes a compression section and an extraction section, and the compression screw includes a main body having a first end and a second end protruding from the first end and the second end respectively, and a spiral blade assembly is arranged on the outer side surface of the main body, and the compression screw has: a channel extending from the first end toward the second end in the main body and configured to receive an extraction fluid; and a plurality of fluid outlets, The invention relates to a main body of the extraction section, wherein the extraction fluid is arranged in the main body of the extraction section and configured to allow the extraction fluid to flow out of the main body; and a conveying system, which is configured to guide the extraction fluid into the channel, wherein the extraction ports are located at the periphery of the extraction section, so that the extraction fluid passing through the raw material to be extracted can flow out of the outer shell and enter the conveying system; wherein the spiral blade assembly comprises: a first spiral blade, which is arranged on the main body of the compression section; and a second spiral blade, which is arranged on the main body of the extraction section, wherein An inner side surface of the outer shell is further provided with a check ring, the check ring is between the first spiral blade and the second spiral blade, and is configured to prevent the raw material to be extracted from entering the extraction section from flowing back to the compression section; and wherein the compression screw includes a segmented valve disposed in the channel of the extraction section to separate the channel into a first section and a second section, and the conveying system is further configured to convey the extraction fluid flowing out of the outer shell to the second section of the channel through the second end. A continuous high-pressure extraction system as described in claim 1, wherein an outer diameter dimension of the main body in the compression section gradually increases from the first end to the extraction section. A continuous high-pressure extraction system as described in claim 1, wherein the fluid outlets are arranged along the spiral of the second spiral blade. A continuous high-pressure extraction system as described in claim 1, wherein the delivery system is further configured to deliver the extraction fluid flowing out of the housing to the channel through the first end. A continuous high-pressure extraction system as described in claim 1, wherein the at least one continuous high-pressure extraction device further comprises a flow splitter assembly disposed around the outer shell of the extraction section, the flow splitter assembly being configured to separate the extraction fluid flowing out of the first section from the extraction fluid flowing out of the second section. A continuous high-pressure extraction system as described in claim 1, wherein the at least one continuous high-pressure extraction device further comprises a temperature control jacket ring disposed outside the outer shell of the extraction section, and the temperature control jacket is configured to control the temperature of the extraction fluid flowing out of the outer shell. A continuous high-pressure extraction system as described in claim 1, wherein the extraction ports are a plurality of mesh outlets for filtering the extraction fluid. A continuous high-pressure extraction system as described in claim 1, wherein the number of the at least one continuous high-pressure extraction device is plural, and the continuous high-pressure extraction devices are connected in series in sequence, wherein the extraction fluid flowing out of one of the continuous high-pressure extraction devices is introduced into the channel of the other one of the continuous high-pressure extraction devices through the conveying system of the other one of the continuous high-pressure extraction devices.

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