CN105211448A - A kind of combined type instant coffee constant temperature countercurrent extraction tank - Google Patents
A kind of combined type instant coffee constant temperature countercurrent extraction tank Download PDFInfo
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- CN105211448A CN105211448A CN201510576712.2A CN201510576712A CN105211448A CN 105211448 A CN105211448 A CN 105211448A CN 201510576712 A CN201510576712 A CN 201510576712A CN 105211448 A CN105211448 A CN 105211448A
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- extractor
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- 238000000605 extraction Methods 0.000 title claims abstract description 51
- 235000021539 instant coffee Nutrition 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000002904 solvent Substances 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 16
- 238000007654 immersion Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 6
- 235000016213 coffee Nutrition 0.000 abstract description 28
- 235000013353 coffee beverage Nutrition 0.000 abstract description 28
- 239000000284 extract Substances 0.000 abstract description 16
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 239000004480 active ingredient Substances 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract description 2
- 230000009897 systematic effect Effects 0.000 abstract description 2
- 240000007154 Coffea arabica Species 0.000 description 24
- 238000000034 method Methods 0.000 description 8
- 238000002386 leaching Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 235000019658 bitter taste Nutrition 0.000 description 1
- 229960001948 caffeine Drugs 0.000 description 1
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000019784 crude fat Nutrition 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012527 feed solution Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
Abstract
The embodiment of the invention discloses a kind of combined type instant coffee constant temperature countercurrent extraction tank, because have employed efficient Combined constant temperature countercurrent extraction tank, it is high that active ingredient puies forward most rate; Apply this equipment effective ingredient recovery rate and can improve 3% ~ 8%; Owing to have employed systematic Based Intelligent Control, constant product quality, the disadvantage of difference between overcoming batch.Homogeneous heating, temperature constant, easy to control.Ensure that coffee soluble fraction extracts, and does not waste raw material to greatest extent.Deslagging and charging are pneumatic control, save because of the time required for charging and deslagging, and save manpower, namely a people can control one whole group of coffee adverse current constant temperature extractor.The use of electron concentration instrument can demonstrate material very intuitively and extract state, ensures that coffee material does not exist undue extraction and causes the longer and steam consumption of subsequent evaporation device concentration time to greatest extent, does not also exist to extract insufficient ground coffee that causes and waste.
Description
Technical field
The present invention relates to extractor field, particularly relate to a kind of combined type instant coffee constant temperature countercurrent extraction tank.
Background technology
Coffee is one of large beverage in the world three, containing rich in protein, crude fibre, crude fat, caffeine etc., there is unique aromatic taste and refresh oneself, excited effect.Coffee is the symbol in west, data are had to show, the coffee consumption of China is risen with the speed of 20% just year by year, be expected to become main coffee country of consumption of the world, and instant coffee is the main flow of current coffee, instant coffee facilitates economy to become the main selection of emerging stratum, and the coffee of China is all started late from plantation or processing, making a low multiple use of coffee, backwardness especially in deep processing, particularly in instant coffee extractive technique, the equipment of domestic current independent research mostly is multi-function extractor or assembly type countercurrent extraction tank etc., because its recovery rate is low, Extracting temperature and pressure gap large, labo r usage is large, equipment can handling difference, extraction time is long, extraction liquid measure is large, the factors such as coffee waste is large cannot meet the needs of large-scale production instant coffee in the stage of extraction.
At present, domestic instant coffee extracts production technology and equipment generally adopts traditional extraction process, mainly contain following several: decoct and extract, circulating reflux is extracted, seepage pressure effects etc., all complete leaching in closed cell, along with leaching process carries out, Steep cencentration strengthens, material concentration reduces (referring to solable matter concentration in material), the speed of leaching rate slows down, and progressively reach certain poised state, single multi-function extractor because of its capacity large, material is many, for ensure as far as possible increase recovery rate need pressure increase solvent and material long for time of contact, because of its solvent and material be in high-temperature high-pressure state for a long time under easily cause coffee aroma to run off, coffee mouthfeel bitter taste strengthens, immersion liquid amount is large, strengthen later stage operation (evaporimeter) live load.Countercurrent extraction tank group, usual employing 2-3 countercurrent extraction tanks combine, namely material starts into solvent after all filling it up with extractor, the second tank is directly entered after the first tank solution is filled, as the solvent of extraction second tank material, tank tank skin can be extracted and connecting pipe takes away a part because of solvent temperature in the process of circulation, cause temperature after entering the second pass lower, pressure can not normally rise, for ensureing that recovery rate must strengthen solvent thus hard cook under causing the first tank long term high temperature high pressure, a lot of pained composition is taken out of, and extract under the second tank low temperature, cause and can not fully the solable matter of coffee be proposed, waste raw material etc.These techniques also also exist the defect being difficult to avoid: recovery rate is low, and coffee waste is large; Extraction time is long; Fluid coefficient is large, and easily causes solution to block or filter not exclusively, and increase the weight of subsequent treatment burden, energy consumption is higher; Differences between batches are larger; Belong to intermittently operated, working condition is poor.
Coffee deep processing extraction equipment all adopts Hesperian production equipment; domestic independent research can the actual equipment utilized less; adopt import equipment price high (being generally 5-8 times of domestic equipment); and maintenance difficult, consumptive material are expensive; usual maintenance all needs offshore company to send someone to keep in repair; time is grown, costly, be unfavorable for serialization, large-scale production.Seriously govern the coffee industry development of China, adopt this equipment to replace traditional multi-function extractor to reduce significantly and extract workshop entirety investment (reducing about 50%).
Summary of the invention
Embodiment of the present invention technical problem to be solved is, there is provided a kind of and improve recovery rate, reduce energy consumption, shorten extraction time, reduce equipment investment, control convenient, reduce manpower, reduce instant coffee products batch between the combined type instant coffee constant temperature countercurrent extraction tank of difference.
Described combined type instant coffee constant temperature countercurrent extraction tank; comprise heat exchange switch board and to circulate the multiple extractors be connected by extracting solvent pipeline and described heat exchange switch board; described heat exchange switch board is communicated with bottom described extractor; described extractor top is provided with immersion liquid discharge pipe; the described immersion liquid discharge pipe other end is connected with control valve and electron concentration instrument; one end of described control valve is connected with heat exchange switch board by dip circulation pipeline, and the other end is connected with immersion liquid temporary storage tank by recirculation cooler; Described heat exchange switch board again to be circulated with described extractor by the dip circulation pipeline of the other end and is connected.
Described extractor comprises seven, and described first extractor is connected with described heat exchange switch board by extracting solvent pipeline, and other extractors adjacent with described first extractor are connected with described heat exchange switch board by described dip circulation pipeline.
As the further improvement of the technical program, the upper/lower terminal of described extractor is provided with 200 object screen packs.
Described extraction tube material inlet place is provided with pneumatic ball valve.
Implement the embodiment of the present invention, there is following beneficial effect:
Embodiment of the present invention combined type instant coffee constant temperature countercurrent extraction tank, because have employed efficient Combined constant temperature countercurrent extraction tank, it is high that active ingredient puies forward most rate; Apply this equipment effective ingredient recovery rate and can improve 3% ~ 8%; Owing to have employed systematic Based Intelligent Control, constant product quality, the disadvantage of difference between overcoming batch.Homogeneous heating, temperature constant, easy to control.Ensure that coffee soluble fraction extracts, and does not waste raw material to greatest extent.Deslagging and charging are pneumatic control, save because of the time required for charging and deslagging, and save manpower, namely a people can control one whole group of coffee adverse current constant temperature extractor.The use of electron concentration instrument can demonstrate material very intuitively and extract state, ensures that coffee material does not exist undue extraction and causes the longer and steam consumption of subsequent evaporation device concentration time to greatest extent, does not also exist to extract insufficient ground coffee that causes and waste.
Owing to have employed efficient continuous constant temperature counter-flow extraction, it is constant that each extractor extracts the temperature difference between solution solvent, shortens extraction time, and extraction rate is fast, both can extract by continuous circulation after once all tank bodies being added full with substance.Continuous prodution after once driving, thus disposal ability is large, efficiency is high.The extra latency that the operation such as to eliminate in single multi-function extractor batch production process reinforced, preheating, slag tap spends.Amass the equipment into 0.6m3 for single leaching volume of compartment, Combined constant temperature countercurrent extraction tank runs 10 days and can process 50 tons of raw material coffees (extraction time 180min), is equivalent to 6 4m3 multi-function extractors.
Fluid coefficient little (general control is between 4 ~ 8 times), and multi-function extractor fluid coefficient large (general control is between 15 ~ 20 times), save the steam consumption needed for the heating of unnecessary multiple solvent, power consumption.Significantly can reduce concentration time and the steam consumption of later process (evaporimeter) simultaneously, improve the utilization rate of evaporation equipment.When extracting the coffee of equal number, use extraction time needed for this equipment to be obviously less than multi-function extractor extraction time (general minimizing more than 30%), and save the steam consumption needed for solvent heating over head time.Heating-up temperature controls automatically (and the general poor controllability of multi-function extractor), saves steam consumption.By actual production Operational Data Analysis, use this outfit of equipment can save and be equivalent to 30% of multi-function extractor energy consumption.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment of the present invention combined type instant coffee constant temperature countercurrent extraction tank; comprise heat exchange switch board 1 and to circulate seven extractors be connected by extracting solvent pipeline 2 and described heat exchange switch board 1; described heat exchange switch board 1 is communicated with bottom described first extractor 3; described first extractor 3 top is provided with immersion liquid discharge pipe 4; described immersion liquid discharge pipe 4 other end is connected with control valve 5 and electron concentration instrument 6; one end of described control valve 5 is connected with heat exchange switch board 1 by dip circulation pipeline 7, and the other end is connected with immersion liquid temporary storage tank 9 by recirculation cooler 8; Described heat exchange switch board 1 again to be circulated with the second extractor 10 by the dip circulation pipeline of the other end and is connected.Described extractor comprises seven, and described first extractor 3 is connected with described heat exchange switch board 1 by extracting solvent pipeline 2, and other extractors adjacent with described first extractor 3 are connected with described heat exchange switch board 1 by described dip circulation pipeline.The upper/lower terminal of described extractor is provided with 200 object screen packs, and described extraction tube material inlet place is provided with pneumatic ball valve 11.
The design of this equipment is based on efficient continuous reverse flow leaching principle, by extracting in conjunction with circulating reflux, counter-flow extraction, decoct the equipment advantageous design such as extraction and go out, main equipment is by heat exchange switch board (can make pure water be heated to 180 DEG C--250 DEG C), extractor group is combined (200 object screen packs are all with at upper and lower two ends) by 7 single extractors, pneumatic ball valve, recirculation cooler, electron concentration instrument (range ability is 0.1%-60%) etc., the circulating countercurrent extraction tank group of continuous constant temperature of unique design, can single circulation extract, also can organize constant temperature continuous circulation to extract more, the use of automatic feed and pneumatic ball valve decreases manpower, the comprehensive utilization of electron concentration instrument ensure that the maximized of caffeinated water's soluble substance extracts, do not cause the waste of coffee, do not cause and bring pressure because excessive extraction causes extract to cross multipair later stage concentration yet, the design does not directly enter the second extractor after allowing the material of tank one extract (not reaching discharge concentration), but after heat exchange switch board carries out post bake (reaching required extraction solvent temperature), enter the second tank by piping loop, the like, when material concentration reaches discharge concentration requirement, the control valve of closing on circulating-heating pipeline enters feed liquid temporary storage tank by material.
This design because of feed liquid from tank one out afterwards by heating, feed liquid becomes the solvent extracting next tank material, temperature and tank one are consistent, avoid because of the thermal losses in feed solution flow process, after entering next tank, temperature reduces, and pressure can not normally rise, extend extraction time, reduction of feed volume increases, and accurately cannot control each batch of difference brought because of the difference of extraction time, Extracting temperature, extraction pressure, causes the problem of the poor stability of the product quality of instant coffee.Reduce unnecessary material loss, save extraction time, add the extractability in the unit interval.
Concrete production technology is as follows:
1, carefully check before producing whether each valve, heat exchange switch board etc. of 7 extractors be intact, and no problem extractor is for subsequent use, enters production status;
2, automatic feed system is filled to 7 extractors successively the ground coffee through curing, grinding, for subsequent use after ground coffee is filled;
3, open heat exchange switch board, be communicated with steam (steam pressure 0.3-0.5Kpa), and heat (be heated to required 160---180 DEG C) to extraction solvent (pure water), to be heated after required temperature, solvent enters the first extractor;
4, pure water enters from the first extractor pot bottom, discharge from the first extractor top duct after full first extractor of leaching, now because extracting concentration lower (now concentration is only 8-9%) does not reach set fluid concentration, need to be circulated to the second extractor, with the extraction solvent of the first extractor extract as the second extractor ground coffee, now close and extract temporary storage tank UNICOM drainage line on control valve, the material of the first extractor is allowed to enter after heat exchange switch board carries out heating material (being heated to 160--180 DEG C) by dip circulation pipeline, enter the second extractor, carry out the extraction of the second extractor material, the like allow immersion liquid enter the 3rd successively, four, five, six, seven extractors, when feed concentration reaches set concentration 15%-20%, control valve on the materail tube that closedown is connected with heat exchange switch board, allow material by recirculation cooler cool laggard enter feed liquid temporary storage tank, when concentration closes this valve automatically lower than during set concentration, next extractor is entered after allowing material pass through heating, continue to extract.
Circulate successively, being generally 6 extractors is that namely an extraction unit ensures that an extractor is entering material at any time.Namely ensure to extract simultaneously, all have a tank body to be in deslagging, cleaning, to save extraction time.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (4)
1. a combined type instant coffee constant temperature countercurrent extraction tank; it is characterized in that; comprise heat exchange switch board and to circulate the multiple extractors be connected by extracting solvent pipeline and described heat exchange switch board; described heat exchange switch board is communicated with bottom described extractor; described extractor top is provided with immersion liquid discharge pipe; the described immersion liquid discharge pipe other end is connected with control valve and electron concentration instrument; one end of described control valve is connected with heat exchange switch board by dip circulation pipeline, and the other end is connected with immersion liquid temporary storage tank by recirculation cooler; Described heat exchange switch board again to be circulated with described extractor by the dip circulation pipeline of the other end and is connected.
2. combined type instant coffee constant temperature countercurrent extraction tank as claimed in claim 1, it is characterized in that, described extractor comprises seven, described first extractor is connected with described heat exchange switch board by extracting solvent pipeline, and other extractors adjacent with described first extractor are connected with described heat exchange switch board by described dip circulation pipeline.
3. combined type instant coffee constant temperature countercurrent extraction tank as claimed in claim 1, it is characterized in that, the upper/lower terminal of described extractor is provided with 200 object screen packs.
4. combined type instant coffee constant temperature countercurrent extraction tank as claimed in claim 1, it is characterized in that, described extraction tube material inlet place is provided with pneumatic ball valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510576712.2A CN105211448A (en) | 2015-09-11 | 2015-09-11 | A kind of combined type instant coffee constant temperature countercurrent extraction tank |
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| CN201510576712.2A CN105211448A (en) | 2015-09-11 | 2015-09-11 | A kind of combined type instant coffee constant temperature countercurrent extraction tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109699746A (en) * | 2017-10-25 | 2019-05-03 | 内蒙古伊利实业集团股份有限公司 | A kind of soya-bean milk coffee and preparation method thereof |
| CN111227086A (en) * | 2020-03-16 | 2020-06-05 | 昆明弘承商贸有限公司 | Extraction system applied to food processing |
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Patent Citations (9)
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| GB625365A (en) * | 1941-05-09 | 1949-06-27 | Gen Foods Corp | Improvements in or relating to decaffeination of green coffee beans |
| GB877522A (en) * | 1959-11-02 | 1961-09-13 | Gen Foods Corp | Method of producing concentrated coffee extract |
| US5190779A (en) * | 1990-07-18 | 1993-03-02 | Nestec S.A. | Countercurrent extraction of coffee |
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Application publication date: 20160106 |