CN115779484B - Self-identification steady-flow ultralow-temperature extraction process for coffee liquid and application thereof - Google Patents
Self-identification steady-flow ultralow-temperature extraction process for coffee liquid and application thereof Download PDFInfo
- Publication number
- CN115779484B CN115779484B CN202211251597.8A CN202211251597A CN115779484B CN 115779484 B CN115779484 B CN 115779484B CN 202211251597 A CN202211251597 A CN 202211251597A CN 115779484 B CN115779484 B CN 115779484B
- Authority
- CN
- China
- Prior art keywords
- extraction
- liquid
- pipe
- liquid outlet
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Landscapes
- Tea And Coffee (AREA)
Abstract
The invention relates to the technical field of coffee extraction, and discloses a coffee feed liquid self-identification steady-flow ultralow-temperature extraction process and application thereof.
Description
Technical Field
The invention relates to the technical field of coffee extraction, in particular to a self-identification steady-flow ultralow-temperature extraction process of coffee liquid and application thereof.
Background
The coffee extract is used as the raw material of high-quality coffee products, and at present, the domestic traditional extract products mostly adopt a high-temperature extraction process, and the products have the flavor defects of bad miscellaneous flavor and peculiar smell, sharp sour flavor, green feel, heavy bitter taste and the like due to the high-temperature condition of the extraction process. Along with the change of market demands, coffee extract with better taste needs to be selected. The low-temperature extraction process can keep the coffee flavor components to the greatest extent, and the obtained coffee extract and the product thereof have rich and full aroma, soft acidity, smooth mouthfeel and softness and sweet return.
Because the flavor components in the coffee powder can not be completely extracted through one-time extraction, the existing coffee powder low-temperature extraction device generally needs to be provided with a plurality of extraction tanks for repeated extraction of coffee powder liquid, so that the purchasing cost and the using cost of the device are too high, the plurality of extraction tanks are arranged side by side, the occupied area is too large, daily maintenance and cleaning of workers are not facilitated, the labor intensity of the workers is increased, and the extraction liquid obtained after the flavor components in the coffee powder are extracted by pure water needs to be sequentially discharged into a cooling device for cooling through the plurality of extraction tanks, so that the coffee extraction liquid needs to be retained in the extraction tanks with a certain temperature for a long time, the flavor components in the coffee liquid are easily lost, and the coffee taste is deficient.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a self-identification steady-flow ultralow-temperature extraction process for coffee liquid and application thereof, which can circularly perform three times of extraction in the same extraction tank, timely cool the extraction liquid after each extraction to retain flavor components, and has the advantages of effectively reducing the extraction cost and labor intensity, ensuring good extraction effect and the like, and solves the problem that a plurality of extraction tanks are required to repeatedly extract coffee powder liquid in the prior art.
(II) technical scheme
In order to solve the technical problem that a plurality of extraction tanks are required to be arranged for repeatedly extracting coffee powder liquid in the prior art, the invention provides the following technical scheme:
a coffee liquid self-identification steady flow ultralow temperature extraction process comprises the following steps:
s1, pretreatment: pulverizing roasted coffee beans in a low-temperature environment to obtain coffee powder;
s2, low-temperature extraction: putting coffee powder into a low-temperature extraction device, pressurizing pure water, reversely spraying the pure water from bottom to top, extracting flavor components in coffee powder particles, and cooling to obtain primary extract;
pressurizing the primary extract and reversely spraying the primary extract from bottom to top, further extracting flavor components, and cooling to obtain a secondary extract;
pressurizing the secondary extraction liquid and reversely spraying the secondary extraction liquid from bottom to top, further extracting flavor components, cooling to obtain a tertiary extraction liquid, and discharging the tertiary extraction liquid; wherein the concentration of the primary extract, the secondary extract and the tertiary extract is increased;
s3, post-processing: and (3) sequentially centrifuging, sterilizing and cooling the extract liquid obtained by low-temperature extraction to obtain the required coffee feed liquid.
A low-temperature extraction device for a coffee liquid self-identification steady flow ultra-low temperature extraction process, comprising: the extraction tank comprises an extraction inner cylinder, a filtering component and a heating component, wherein the heating component is used for adjusting the internal temperature of the extraction inner cylinder, three groups of filtering components with sequentially increased mesh numbers are sequentially arranged inside the extraction inner cylinder from bottom to top, a first liquid outlet, a second liquid outlet and a third liquid outlet which are positioned on the upper side of each group of filtering components are sequentially formed in the inner wall of the extraction inner cylinder from bottom to top, and the extraction inner cylinder, the liquid outlet pipeline component, the condensation tank and the liquid inlet pipeline component are sequentially communicated;
the liquid inlet pipeline component is used for spraying pressurized liquid from the lower side of the extraction inner barrel so as to extract flavor components in coffee powder particles in the extraction inner barrel from bottom to top.
Preferably, the liquid inlet pipeline component is used for inputting pure water into the extraction inner barrel under a certain pressure during primary extraction, and the obtained primary extract can flow into the liquid outlet pipeline component from the first liquid outlet after being filtered by the first group of filtering components;
the liquid inlet pipeline component is used for circularly inputting primary extraction liquid into the extraction inner barrel under higher pressure during secondary extraction, and the obtained secondary extraction liquid can flow into the liquid outlet pipeline component from the second liquid outlet after being filtered by the second group of filtering components;
the liquid inlet pipeline component is used for circularly inputting secondary extraction liquid into the extraction inner barrel under higher pressure during tertiary extraction, and the obtained tertiary extraction liquid can flow into the liquid outlet pipeline component from the third liquid outlet and be discharged to the outside of the low-temperature extraction device after being filtered by the third group of filtering components;
the lower side of the extraction inner barrel is provided with a slag discharge port which is used for discharging coffee powder residues after three times of extraction.
Preferably, the extraction inner tube downside is provided with the feed liquor pipe, the feed liquor pipe output is provided with the shower head, extraction inner tube one side is provided with into the powder pipe, the play powder end of advancing the powder pipe is located first group filter assembly downside, it can be closed to advance the powder pipe play powder end.
Preferably, the first group of filter assemblies comprises two first filters arranged in a superimposed manner, the second group of filter assemblies comprises two second filters arranged in a superimposed manner, the third group of filter assemblies comprises two third filters arranged in a superimposed manner, and the mesh numbers of the first filters, the second filters and the third filters are increased.
Preferably, the liquid inlet pipeline assembly comprises a water inlet pipe, an extension pipe, a circulating input pipe and a booster pump, wherein the water inlet pipe and the circulating input pipe are both arranged at the liquid inlet end of the extension pipe, the liquid outlet end of the extension pipe is communicated with the liquid inlet pipe, and the booster pump is arranged on the extension pipe;
the water inlet pipe is used for connecting an external water conveying pipeline, and the circulating input pipe is communicated with the condensing tank.
Preferably, the condensing tank comprises a tank body, a spiral pipeline, a circulating output pipe, a liquid outlet pipe and a refrigerating unit, wherein the refrigerating unit is used for regulating and controlling the temperature of cooling liquid in the tank body, the spiral pipeline is arranged in the tank body, an input pipe and an output pipe which are arranged at two ends of the spiral pipeline respectively extend to the outside of the tank body, the input pipe is communicated with the liquid outlet pipe assembly, and the circulating output pipe and the liquid outlet pipe are both arranged at the liquid outlet end of the output pipe;
the liquid outlet pipe is used for being connected with an external infusion pipeline, and the circulating output pipe is communicated with the circulating input pipe.
Preferably, the liquid outlet pipeline assembly comprises a liquid outlet main pipe and a liquid outlet branch pipe, the liquid inlet end of the liquid outlet main pipe is connected with three liquid outlet branch pipes, the liquid outlet branch pipes are respectively connected with the first liquid outlet, the second liquid outlet and the third liquid outlet, and the liquid outlet end of the liquid outlet main pipe is communicated with the input pipe.
Preferably, the first liquid outlet, the second liquid outlet, the third liquid outlet, the circulating output pipe, the liquid outlet pipe and the water inlet pipe are respectively provided with one-way valves, and the maximum water capacity of the spiral pipeline is larger than the volume of three extraction liquids obtained after the third extraction.
Preferably, the heating assembly comprises a jacket, the jacket is arranged on the outer side of the extraction inner cylinder, a spiral spoiler is arranged on the outer wall of the extraction inner cylinder, and a steam inlet and a steam outlet are respectively arranged at the upper end and the lower end of the jacket.
(III) beneficial effects
Compared with the prior art, the invention provides a coffee liquid self-identification steady flow ultralow temperature extraction process and application thereof, and has the following beneficial effects:
1. the self-identification steady-flow ultralow-temperature extraction process of the coffee liquid and the application thereof are characterized in that pretreatment is carried out firstly, roasted coffee beans are crushed under a low-temperature environment to obtain coffee powder, the coffee powder is put into a low-temperature extraction device for extraction, then the extraction liquid is subjected to aftertreatment, and the extraction liquid obtained by low-temperature extraction is sequentially centrifuged, sterilized and cooled to obtain the required coffee liquid.
2. According to the self-identification steady-flow ultralow-temperature extraction process and application of the coffee liquid, a first filter, a second filter and a third filter with sequentially increased mesh numbers are sequentially arranged inside an extraction inner barrel from bottom to top, partial flavor components can be extracted from coffee powder particles through primary extraction of pure water, primary extraction liquid is obtained after the coffee powder particles are filtered by the first filter and cooled by a condensing tank to keep the flavor components in the extraction liquid to the greatest extent, the primary extraction liquid is circularly extracted in the extraction inner barrel, the secondary extraction liquid with increased concentration is obtained after the primary extraction liquid is filtered by the second filter and cooled by the condensing tank, and residual coffee powder particles in the primary extraction can be further extracted by the primary extraction liquid to obtain more flavor components, the secondary extraction liquid is circularly extracted in the extraction inner barrel to obtain three extraction liquids with increased concentration, and the extraction liquid is circularly extracted in the same extraction tank to obtain the flavor components after each extraction, so that the extraction cost and labor intensity can be effectively reduced, and good extraction effect can be ensured.
Drawings
FIG. 1 is a schematic illustration of a process flow of the present invention;
FIG. 2 is a schematic diagram showing a partial sectional structure of an extraction tank of the low-temperature extraction device of the present invention;
FIG. 3 is an exploded view of the cryogenic extraction plant of the present invention;
FIG. 4 is a schematic diagram of a low temperature extraction apparatus according to the present invention;
fig. 5 is a schematic cross-sectional view of a condensing tank of the low-temperature extraction device according to the present invention.
In the figure: 1. an extraction tank; 11. extracting an inner barrel; 111. a powder inlet pipe; 112. a liquid inlet pipe; 113. a first liquid outlet; 114. a second liquid outlet; 115. a third liquid outlet; 116. a slag discharge port; 12. a filter assembly; 121. A first filter; 122. a second filter; 123. a third filter; 13. a jacket; 131. a spoiler; 132. a steam inlet; 133. a steam outlet; 2. a condensing tank; 21. a tank body; 22. a helical pipe; 221. An input tube; 222. an output pipe; 23. a circulating output pipe; 24. a liquid outlet pipe; 25. a refrigerating unit; 3. a liquid inlet pipe assembly; 31. a water inlet pipe; 32. an extension tube; 33. a circulation input pipe; 34. a booster pump; 4. a liquid outlet pipe assembly; 41. a liquid outlet main pipe; 42. and a liquid outlet branch pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a coffee liquid self-identification steady flow ultra-low temperature extraction process comprises the following steps:
s1, pretreatment: pulverizing roasted coffee beans in a low-temperature environment to obtain coffee powder;
s2, low-temperature extraction: putting coffee powder into a low-temperature extraction device, pressurizing pure water, reversely spraying the pure water from bottom to top, extracting flavor components in coffee powder particles, and cooling to obtain primary extract;
pressurizing the primary extract and reversely spraying the primary extract from bottom to top, further extracting flavor components, and cooling to obtain a secondary extract;
pressurizing the secondary extraction liquid and reversely spraying the secondary extraction liquid from bottom to top, further extracting flavor components, cooling to obtain a tertiary extraction liquid, and discharging the tertiary extraction liquid; wherein the concentration of the primary extract, the secondary extract and the tertiary extract is increased;
s3, post-processing: and (3) sequentially centrifuging, sterilizing and cooling the extract liquid obtained by low-temperature extraction to obtain the required coffee feed liquid.
Referring to fig. 2 and 3, a low-temperature extraction device for a coffee liquid self-identification steady-flow ultra-low-temperature extraction process includes: the extraction tank 1 comprises an extraction inner cylinder 11, a filtering component 12 and a heating component, wherein the heating component is used for adjusting the internal temperature of the extraction inner cylinder 11, three groups of filtering components 12 with sequentially increased mesh number are sequentially arranged in the extraction inner cylinder 11 from bottom to top, a first liquid outlet 113, a second liquid outlet 114 and a third liquid outlet 115 which are positioned on the upper side of each group of filtering components 12 are sequentially arranged on the inner wall of the extraction inner cylinder 11 from bottom to top, and the extraction inner cylinder 11, the liquid outlet pipeline component 4, the condensation tank 2 and the liquid inlet pipeline component 3 are sequentially communicated; specifically, the internal temperature of the extraction inner cylinder 11 is preferably 30 ℃, and the cooling temperature of the condensing tank 2 is preferably 5 ℃;
the liquid inlet pipe assembly 3 is configured to spray pressurized liquid from the lower side of the extraction inner barrel 11 to extract the flavor components in the coffee powder particles in the extraction inner barrel 11 from bottom to top, so that the liquid sprayed with a certain water pressure can flow out from the corresponding liquid outlet after being filtered by the filtering assembly 12, and the water pressures corresponding to the liquid flowing out from the first liquid outlet 113, the second liquid outlet 114 and the third liquid outlet 115 are sequentially increased.
Further, referring to fig. 2 to 4, the liquid inlet pipe assembly 3 is configured to input pure water into the extraction inner barrel 11 under a certain pressure during primary extraction, and the obtained primary extract is filtered by the first group of filter assemblies 12 and then flows into the liquid outlet pipe assembly 4 from the first liquid outlet 113, so that the coffee powder particles can extract part of the flavor components on the surface of the coffee powder particles through primary extraction of pure water, and the extract is filtered by the first group of filter assemblies 12 and cooled by the condensing tank 2 to maximally retain the flavor components in the extract, so as to obtain the primary extract, and the coffee powder particles which cannot pass through the first group of filter assemblies 12 remain in the area below the first group of filter assemblies 12; specifically, the water pressure when pure water enters the extraction inner cylinder 11 during primary extraction is preferably 3Mpa;
the liquid inlet pipeline assembly 3 is used for circularly inputting the primary extract into the extraction inner barrel 11 under higher pressure during secondary extraction, the obtained secondary extract can flow into the liquid outlet pipeline assembly 4 from the second liquid outlet 114 after being filtered by the second group of filter assemblies 12, so that the primary extract sprayed into the extraction inner barrel 11 is circularly extracted, and is filtered by the second group of filter assemblies 12 with increased mesh number, and then is cooled by the condensing tank 2 to maximally retain the flavor components in the extract, so as to obtain the secondary extract with increased concentration, and coffee powder particles remained in the lower side area of the first group of filter assemblies 12 during primary extraction can be further extracted by the primary extract to obtain more flavor components, and the flavor components are dissolved into the secondary extract, and coffee powder particles which cannot pass through the second group of filter assemblies 12 remain in the lower side area of the second group of filter assemblies 12 and fall into the lower side area of the first group of filter assemblies 12; specifically, the water pressure of the primary extraction liquid entering the extraction inner barrel 11 during the secondary extraction is preferably 4Mpa;
the liquid inlet pipeline assembly 3 is used for circularly inputting the secondary extraction liquid into the extraction inner barrel 11 under higher pressure during the three times of extraction, the obtained three times of extraction liquid can flow into the liquid outlet pipeline assembly 4 from the third liquid outlet 115 and be discharged to the outside of the low-temperature extraction device after being filtered by the third group of filtering assemblies 12, so that the secondary extraction liquid sprayed into the extraction inner barrel 11 is circularly extracted, is filtered by the third group of filtering assemblies 12 with increased mesh number, is cooled by the condensing tank 2 to maximally retain the flavor components in the extraction liquid, so as to obtain the three times of extraction liquid with increased concentration, and coffee powder particles remained in the lower side area of the second group of filtering assemblies 12 during the primary extraction and the secondary extraction can be further extracted by the secondary extraction liquid to obtain more flavor components, and the coffee powder particles which cannot pass through the third group of filtering assemblies 12 remain in the lower side area of the third group of filtering assemblies 12 and fall into the lower side area of the first group of filtering assemblies 12; specifically, the water pressure of the secondary extraction liquid entering the extraction inner barrel 11 during the third extraction is preferably 5Mpa;
the extraction inner tube 11 is provided with a slag discharge port 116 at the lower side, and the slag discharge port 116 is used for discharging coffee powder residues after three extractions, so that residual coffee powder particles with the flavor components extracted by a plurality of extraction after three extractions can be discharged through the slag discharge port 116.
Further, referring to fig. 2, a liquid inlet pipe 112 is disposed at the lower side of the extraction inner barrel 11, and a spray header is disposed at the output end of the liquid inlet pipe 112, so that pressurized liquid entering the extraction inner barrel 11 from the liquid inlet pipe 112 can be sprayed from bottom to top in a spray shape, so as to more fully extract flavor components in coffee powder particles inside the extraction inner barrel 11, a powder inlet pipe 111 is disposed at one side of the extraction inner barrel 11, a powder outlet end of the powder inlet pipe 111 is disposed at the lower side of the first group of filter assemblies 12, and a powder outlet end of the powder inlet pipe 111 can be closed, so that the powder outlet end of the powder inlet pipe 111 is closed after coffee powder is put in, the liquid can be prevented from overflowing from the powder inlet pipe 111 directly, and powder is prevented from being stuck on the inner wall of the powder inlet pipe 111 when coffee powder is put in later.
Further, referring to fig. 2, the first group of filter assemblies 12 includes two stacked first filters 121, the second group of filter assemblies 12 includes two stacked second filters 122, and the third group of filter assemblies 12 includes two stacked third filters 123, with the mesh sizes of the first, second and third filters 121, 122 and 123 increasing. Specifically, the first filter 121, the second filter 122, and the third filter 123 are each a screen, and the first filter 121, the second filter 122, and the third filter 123 are preferably 60 mesh, 80 mesh, and 100 mesh, respectively.
Further, referring to fig. 4, the liquid inlet pipe assembly 3 includes a water inlet pipe 31, an extension pipe 32, a circulation input pipe 33 and a booster pump 34, wherein the water inlet pipe 31 and the circulation input pipe 33 are both disposed at a liquid inlet end of the extension pipe 32, a liquid outlet end of the extension pipe 32 is communicated with the liquid inlet pipe 112, and the booster pump 34 is disposed on the extension pipe 32, so that the liquid flowing through the extension pipe 32 can be pressurized by the booster pump 34;
the water inlet pipe 31 is used for connecting an external water conveying pipeline, and the circulating input pipe 33 is communicated with the condensing tank 2.
Further, referring to fig. 3-5, the condensing tank 2 includes a tank body 21, a spiral pipe 22, a circulating output pipe 23, a liquid outlet pipe 24 and a refrigerating unit 25, the refrigerating unit 25 is used for regulating and controlling the temperature of the cooling liquid in the tank body 21, the spiral pipe 22 is arranged in the tank body 21, an input pipe 221 and an output pipe 222 arranged at two ends of the spiral pipe 22 extend to the outside of the tank body 21 respectively, the input pipe 221 is communicated with the liquid outlet pipe assembly 4, so that after the extracting liquid in the extracting inner barrel 11 flows into the liquid outlet pipe assembly 4, the extracting liquid can sequentially flow through the input pipe 221, the spiral pipe 22 and the output pipe 222, and when the extracting liquid flows through the spiral pipe 22, the cooling water in the tank body 21 can be sufficiently cooled, and the circulating output pipe 23 and the liquid outlet pipe 24 are both arranged at the liquid outlet end of the output pipe 222;
specifically, the maximum water capacity of the spiral duct 22 is greater than the volume of the three extracts obtained after the third extraction, so that, during each extraction, the spiral duct 22 can completely contain the same batch of extracts flowing from the inside of the extraction drum 11, namely: after the primary extraction liquid completely flows into the spiral pipe 22, the primary extraction liquid flows into the extraction inner cylinder 11 from the spiral pipe 22 to perform secondary extraction, so that the primary extraction liquid and the secondary extraction liquid are prevented from being mixed in the extraction inner cylinder 11, the volume of a cavity at the upper part of the spiral pipe 22 gradually increases in the process until the secondary extraction liquid starts to flow into the spiral pipe 22, and the primary extraction liquid and the secondary extraction liquid coexist in the spiral pipe 22 and have a cavity with a certain volume between the primary extraction liquid and the secondary extraction liquid, so that the primary extraction liquid and the secondary extraction liquid are automatically prevented from being mixed in the spiral pipe 22; after the secondary extraction liquid completely flows into the spiral pipe 22, the secondary extraction liquid flows into the extraction inner cylinder 11 from the spiral pipe 22 for three times of extraction, so that the mixing of the secondary extraction liquid and the three times of extraction liquid in the extraction inner cylinder 11 is prevented, the volume of a cavity at the upper part of the spiral pipe 22 is gradually increased in the process until the three times of extraction liquid starts to flow into the spiral pipe 22, and a cavity with a certain volume exists between the secondary extraction liquid and the three times of extraction liquid in the spiral pipe 22, the mixing of the secondary extraction liquid and the three times of extraction liquid in the spiral pipe 22 is automatically prevented, so that more flavor components in coffee powder particles can be extracted in each extraction, the concentration of the obtained coffee extraction liquid is increased, the extraction effect is improved, in the process of each extraction, the extraction liquid does not exist in a static state, the flow is always kept, the solidification of the extraction liquid in the spiral pipe 22 due to low cooling temperature is avoided, and the loss and the solidification and deterioration of flavor components of the coffee extraction liquid are further ensured.
The liquid outlet pipe 24 is used for connecting an external infusion pipeline, and the circulating output pipe 23 is communicated with the circulating input pipe 33.
Further, referring to fig. 4 and 5, the liquid outlet pipe assembly 4 includes a liquid outlet main pipe 41 and a liquid outlet branch pipe 42, wherein a liquid inlet end of the liquid outlet main pipe 41 is connected with three liquid outlet branch pipes 42, the liquid outlet branch pipes 42 are respectively connected with a first liquid outlet 113, a second liquid outlet 114 and a third liquid outlet 115, and the liquid outlet end of the liquid outlet main pipe 41 is communicated with an input pipe 221.
Further, referring to fig. 4 and 5, the first liquid outlet 113, the second liquid outlet 114, the third liquid outlet 115, the circulation output pipe 23, the liquid outlet pipe 24 and the water inlet pipe 31 are respectively provided with one-way valves, so that the circulation state of each pipeline can be controlled through the one-way valves to regulate the liquid flow direction;
specifically, during primary extraction, only the check valves corresponding to the water inlet pipe 31 and the first liquid outlet 113 are kept open, pure water can be sequentially conveyed to the extension pipe 32 and the liquid inlet pipe 112 through the water inlet pipe 31, and sprayed into the extraction inner barrel 11 through the spray header under the water pressure of 3Mpa, and the obtained primary extract can flow into the corresponding liquid outlet branch pipe 42 from the first liquid outlet 113 after being filtered by the two first filters 121, and then sequentially flows through the liquid outlet main pipe 41, the input pipe 221, the spiral pipeline 22 and the output pipe 222;
until the primary extract completely flows into the spiral pipeline 22, only the corresponding one-way valves of the circulating output pipe 23 and the second liquid outlet 114 are kept open, secondary extraction is started, the primary extract flowing to the output pipe 222 sequentially flows through the circulating input pipe 33, the extending pipe 32 and the liquid inlet pipe 112, and is sprayed into the extraction inner barrel 11 through the spray header under the water pressure of 4Mpa, and the obtained secondary extract can flow into the corresponding liquid outlet branch pipe 42 from the second liquid outlet 114 after being filtered by the two second filters 122, and sequentially flows through the liquid outlet main pipe 41, the input pipe 221, the spiral pipeline 22 and the output pipe 222;
until the secondary extraction liquid completely flows into the spiral pipeline 22, only the check valves corresponding to the circulating output pipe 23 and the third liquid outlet 115 are kept open, and three times of extraction is started, so that the secondary extraction liquid flowing to the output pipe 222 sequentially flows through the circulating input pipe 33, the extension pipe 32 and the liquid inlet pipe 112, is sprayed into the extraction inner barrel 11 through the spray header under the water pressure of 5Mpa, and the obtained three times of extraction liquid can flow into the corresponding liquid outlet branch pipe 42 from the third liquid outlet 115 after being filtered by the two third filters 123, and sequentially flows through the liquid outlet main pipe 41, the input pipe 221, the spiral pipeline 22 and the output pipe 222;
after all the secondary extraction liquid in the spiral pipeline 22 flows through the extension pipe 32, only the check valves corresponding to the third liquid outlet 115 and the liquid outlet pipe 24 are kept open, so that the tertiary extraction liquid can flow from the output pipe 222 to the liquid outlet pipe 24 and be discharged to the outside of the device, and extraction is completed.
Specifically, the connection between the main liquid outlet pipe 41 and the input pipe 221 is provided with a flowmeter for monitoring the liquid flow flowing through the main liquid outlet pipe 41 in real time, namely: the flow rate of the extraction liquid flowing out from the first liquid outlet 113, the second liquid outlet 114 and the third liquid outlet 115 is respectively and automatically identified in the three extraction processes, the flowmeter is connected with the booster pump 34 through electric signals, a constant flow rate value is set before extraction, when the flowmeter detects that the liquid flow rate flowing through the liquid outlet main pipe 41 exceeds the error range of the set value, the booster pump 34 can automatically adjust the output pressure to change the water pressure in the extraction inner cylinder 11, thereby changing the liquid flow rate flowing out from the extraction inner cylinder 11 until the flow rate monitored by the flowmeter recovers the set value, thereby ensuring that the flow rate of the extraction liquid flowing out from the extraction inner cylinder 11 in the three extraction processes is consistent, ensuring that the liquid flow rate is stable in the three extraction processes, and realizing the effect of self-identification steady flow.
Further, referring to fig. 2, the heating assembly includes a jacket 13, the jacket 13 is disposed outside the extraction inner barrel 11, a spiral spoiler 131 is disposed on the outer wall of the extraction inner barrel 11, and a steam inlet 132 and a steam outlet 133 are disposed at the upper and lower ends of the jacket 13, respectively, so that steam enters the cavity between the jacket 13 and the extraction inner barrel 11 from the steam inlet 132, can circulate around the outer wall of the extraction inner barrel 11 along a steam channel formed by the spoiler 131, and finally is discharged from the steam outlet 133, and the steam circulates into the cavity between the jacket 13 and the extraction inner barrel 11 to regulate the internal temperature of the extraction inner barrel 11. Specifically, the internal temperature of the extraction drum 11 is preferably set to 20-40 ℃.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A low-temperature extraction device for a coffee liquid self-identification steady flow ultra-low temperature extraction process, comprising: extraction jar (1), condensation jar (2), feed liquor pipeline subassembly (3) and play liquid pipeline subassembly (4), its characterized in that: the extraction tank (1) comprises an extraction inner cylinder (11), a filtering component (12) and a heating component, wherein the heating component is used for adjusting the temperature inside the extraction inner cylinder (11), three groups of filtering components (12) with sequentially increased mesh numbers are sequentially arranged inside the extraction inner cylinder (11) from bottom to top, a first liquid outlet (113), a second liquid outlet (114) and a third liquid outlet (115) which are positioned on the upper side of each group of filtering components (12) are sequentially arranged on the inner wall of the extraction inner cylinder (11) from bottom to top, and the extraction inner cylinder (11), the liquid outlet pipeline component (4), the condensation tank (2) and the liquid inlet pipeline component (3) are sequentially communicated;
the liquid inlet pipeline assembly (3) is used for spraying pressurized liquid from the lower side of the extraction inner barrel (11) so as to extract flavor components in coffee powder particles in the extraction inner barrel (11) from bottom to top;
the first liquid outlet (113), the second liquid outlet (114) and the third liquid outlet (115) are respectively provided with one-way valves;
the liquid inlet pipeline assembly (3) is used for inputting pure water into the extraction inner barrel (11) under a certain pressure during primary extraction, and the obtained primary extraction liquid flows into the liquid outlet pipeline assembly (4) from the first liquid outlet (113) after being filtered by the first group of filtering assemblies (12);
the liquid inlet pipeline assembly (3) is used for circularly inputting primary extraction liquid into the extraction inner barrel (11) under higher pressure during secondary extraction, and the obtained secondary extraction liquid flows into the liquid outlet pipeline assembly (4) from the second liquid outlet (114) after being filtered by the second group of filtering assemblies (12);
the liquid inlet pipeline assembly (3) is used for circularly inputting secondary extraction liquid into the extraction inner barrel (11) under higher pressure during three times of extraction, and the obtained three times of extraction liquid flows into the liquid outlet pipeline assembly (4) from the third liquid outlet (115) and is discharged to the outside of the low-temperature extraction device after being filtered by the third group of filtering assemblies (12);
a slag discharge port (116) is arranged at the lower side of the extraction inner barrel (11), and the slag discharge port (116) is used for discharging coffee powder residues after three times of extraction;
the first group of filter assemblies (12) comprises two first filters (121) which are arranged in a superposition manner, the second group of filter assemblies (12) comprises two second filters (122) which are arranged in a superposition manner, the third group of filter assemblies (12) comprises two third filters (123) which are arranged in a superposition manner, and the mesh numbers of the first filters (121), the second filters (122) and the third filters (123) are increased.
2. The low-temperature extraction device for a coffee liquid self-identification steady-flow ultra-low-temperature extraction process according to claim 1, wherein the low-temperature extraction device is characterized in that: the extraction inner tube (11) downside is provided with feed liquor pipe (112), feed liquor pipe (112) output is provided with the shower head, extraction inner tube (11) one side is provided with into powder pipe (111), the play powder end that advances powder pipe (111) is located first group filter component (12) downside, it can be closed to advance powder pipe (111) play powder end.
3. The low-temperature extraction device for a coffee liquid self-identification steady-flow ultra-low-temperature extraction process according to claim 2, wherein the low-temperature extraction device is characterized in that: the liquid inlet pipeline assembly (3) comprises a water inlet pipe (31), an extension pipe (32), a circulating input pipe (33) and a booster pump (34), wherein the water inlet pipe (31) and the circulating input pipe (33) are both arranged at the liquid inlet end of the extension pipe (32), the liquid outlet end of the extension pipe (32) is communicated with the liquid inlet pipe (112), and the booster pump (34) is arranged on the extension pipe (32);
the water inlet pipe (31) is used for being connected with an external water conveying pipeline, and the circulating input pipe (33) is communicated with the condensing tank (2).
4. A low-temperature extraction device for a self-identification steady-flow ultra-low-temperature extraction process of coffee liquid according to claim 3, wherein: the condensing tank (2) comprises a tank body (21), a spiral pipeline (22), a circulating output pipe (23), a liquid outlet pipe (24) and a refrigerating unit (25), wherein the refrigerating unit (25) is used for regulating and controlling the temperature of cooling liquid in the tank body (21), the spiral pipeline (22) is arranged in the tank body (21), an input pipe (221) and an output pipe (222) which are arranged at two ends of the spiral pipeline (22) are respectively extended to the outside of the tank body (21), the input pipe (221) is communicated with the liquid outlet pipe assembly (4), and the circulating output pipe (23) and the liquid outlet pipe (24) are both arranged at the liquid outlet end of the output pipe (222);
the liquid outlet pipe (24) is used for being connected with an external infusion pipeline, and the circulating output pipe (23) is communicated with the circulating input pipe (33).
5. The low-temperature extraction device for a self-identification steady-flow ultra-low-temperature extraction process of coffee liquid according to claim 4, wherein the low-temperature extraction device comprises: the liquid outlet pipeline assembly (4) comprises a liquid outlet main pipe (41) and liquid outlet branch pipes (42), wherein liquid inlet ends of the liquid outlet main pipe (41) are connected with three liquid outlet branch pipes (42), the liquid outlet branch pipes (42) are respectively connected with a first liquid outlet (113), a second liquid outlet (114) and a third liquid outlet (115), and the liquid outlet ends of the liquid outlet main pipe (41) are communicated with the input pipe (221).
6. The low-temperature extraction device for a coffee liquid self-identification steady-flow ultra-low-temperature extraction process according to claim 5, wherein the low-temperature extraction device is characterized in that: the circulating output pipe (23), the liquid outlet pipe (24) and the water inlet pipe (31) are respectively provided with one-way valves, and the maximum water capacity of the spiral pipeline (22) is larger than the volume of the three extraction liquids obtained after the third extraction.
7. The low-temperature extraction device for a self-identification steady-flow ultra-low-temperature extraction process of coffee liquid according to claim 6, wherein the low-temperature extraction device is characterized in that: the heating assembly comprises a jacket (13), the jacket (13) is arranged on the outer side of the extraction inner cylinder (11), a spiral spoiler (131) is arranged on the outer wall of the extraction inner cylinder (11), and a steam inlet (132) and a steam outlet (133) are respectively arranged at the upper end and the lower end of the jacket (13).
8. A coffee liquid self-identification steady flow ultralow temperature extraction process, which adopts the low temperature extraction device for the coffee liquid self-identification steady flow ultralow temperature extraction process according to any one of claims 1-7, and is characterized by comprising the following steps:
s1, pretreatment: pulverizing roasted coffee beans in a low-temperature environment to obtain coffee powder;
s2, low-temperature extraction: putting coffee powder into a low-temperature extraction device, pressurizing pure water, reversely spraying the pure water from bottom to top, extracting flavor components in coffee powder particles, and cooling to obtain primary extract;
pressurizing the primary extract and reversely spraying the primary extract from bottom to top, further extracting flavor components, and cooling to obtain a secondary extract;
pressurizing the secondary extraction liquid and reversely spraying the secondary extraction liquid from bottom to top, further extracting flavor components, cooling to obtain a tertiary extraction liquid, and discharging the tertiary extraction liquid; wherein the concentration of the primary extract, the secondary extract and the tertiary extract is increased;
s3, post-processing: and (3) sequentially centrifuging, sterilizing and cooling the extract liquid obtained by low-temperature extraction to obtain the required coffee feed liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211251597.8A CN115779484B (en) | 2022-10-13 | 2022-10-13 | Self-identification steady-flow ultralow-temperature extraction process for coffee liquid and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211251597.8A CN115779484B (en) | 2022-10-13 | 2022-10-13 | Self-identification steady-flow ultralow-temperature extraction process for coffee liquid and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115779484A CN115779484A (en) | 2023-03-14 |
| CN115779484B true CN115779484B (en) | 2023-08-15 |
Family
ID=85432927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211251597.8A Active CN115779484B (en) | 2022-10-13 | 2022-10-13 | Self-identification steady-flow ultralow-temperature extraction process for coffee liquid and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115779484B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056567A (en) * | 2015-07-10 | 2015-11-18 | 潍坊友容实业有限公司 | Plant salt extraction equipment capable of improving extraction efficiency in winter |
| CN208959365U (en) * | 2018-09-28 | 2019-06-11 | 天津达仁堂京万红药业有限公司 | Low-temperature circulating leaching device |
| CN110025975A (en) * | 2019-01-07 | 2019-07-19 | 云南农业大学 | A kind of online countercurrent screw extraction equipment of tobacco |
| CN111437624A (en) * | 2020-04-27 | 2020-07-24 | 华南理工大学 | A kind of coffee component extraction and separation system and process |
| CN111759175A (en) * | 2020-07-06 | 2020-10-13 | 广东顺大食品调料有限公司 | High-concentration coffee extracting solution extraction system and extraction method |
| CN112473174A (en) * | 2020-12-09 | 2021-03-12 | 海南一哟食品有限公司 | Method for accelerating coffee extraction by adopting ultrasonic waves |
-
2022
- 2022-10-13 CN CN202211251597.8A patent/CN115779484B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056567A (en) * | 2015-07-10 | 2015-11-18 | 潍坊友容实业有限公司 | Plant salt extraction equipment capable of improving extraction efficiency in winter |
| CN208959365U (en) * | 2018-09-28 | 2019-06-11 | 天津达仁堂京万红药业有限公司 | Low-temperature circulating leaching device |
| CN110025975A (en) * | 2019-01-07 | 2019-07-19 | 云南农业大学 | A kind of online countercurrent screw extraction equipment of tobacco |
| CN111437624A (en) * | 2020-04-27 | 2020-07-24 | 华南理工大学 | A kind of coffee component extraction and separation system and process |
| CN111759175A (en) * | 2020-07-06 | 2020-10-13 | 广东顺大食品调料有限公司 | High-concentration coffee extracting solution extraction system and extraction method |
| CN112473174A (en) * | 2020-12-09 | 2021-03-12 | 海南一哟食品有限公司 | Method for accelerating coffee extraction by adopting ultrasonic waves |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115779484A (en) | 2023-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180007926A1 (en) | System and method of cold brewing coffee | |
| CN113080280B (en) | Tea extraction equipment and method | |
| CN104856164A (en) | Method for preparing clear hawthorn juice drink by enzymolysis of hawthorn | |
| CN104762164A (en) | Method for brewing waxberry wine | |
| CN115779484B (en) | Self-identification steady-flow ultralow-temperature extraction process for coffee liquid and application thereof | |
| WO2021218247A1 (en) | Coffee component extraction and separation system and process | |
| CN1679730A (en) | A kind of traditional Chinese medicine raw material extraction process and equipment | |
| CN107348064B (en) | Processing method of herbal tea | |
| CN106939278B (en) | Preparation method of tea wine | |
| CN114164046A (en) | Supercritical carbon dioxide extraction method of camellia oil | |
| CN106753784A (en) | Sesame oil filter | |
| CN210394289U (en) | A rice bran fat oil stores and adds equipment for feed production | |
| CN107083289A (en) | A kind of intelligent brewing machine | |
| CN219517866U (en) | Production equipment of plant concentrated paste | |
| CN209412167U (en) | It is a kind of to extract camellia seed oil device at low temperature | |
| CN208356529U (en) | A kind of clarification filtration system equipment of dark green tea extracting solution | |
| CN220309784U (en) | Animal and plant material decoct cooling device | |
| CN109439432A (en) | A kind of low-temperature extraction camellia seed oil device | |
| CN222284580U (en) | Continuous automatic device capable of improving flash extraction quality of coffee | |
| CN206730536U (en) | A kind of honey concentrates system of processing | |
| CN216585037U (en) | Thermal-stability type soybean protein isolate production system with good flavor | |
| CN206621850U (en) | tea oil filter | |
| RU2039801C1 (en) | Device for brewing beer | |
| CN208287510U (en) | A kind of grey blue extracting solution purification concentration systems | |
| CN219613006U (en) | Prefabricated vegetable soup base enrichment facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |