CN112931669A - Device and method for extracting coffee from coffee grounds - Google Patents
Device and method for extracting coffee from coffee grounds Download PDFInfo
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- CN112931669A CN112931669A CN202110252501.9A CN202110252501A CN112931669A CN 112931669 A CN112931669 A CN 112931669A CN 202110252501 A CN202110252501 A CN 202110252501A CN 112931669 A CN112931669 A CN 112931669A
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- 235000013353 coffee beverage Nutrition 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000000227 grinding Methods 0.000 claims abstract description 129
- 238000001914 filtration Methods 0.000 claims abstract description 86
- 238000000605 extraction Methods 0.000 claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 27
- 239000002002 slurry Substances 0.000 claims description 83
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 30
- 241000533293 Sesbania emerus Species 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 19
- 239000000843 powder Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000002893 slag Substances 0.000 claims description 16
- 239000006228 supernatant Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 5
- 241000185686 Apocynum venetum Species 0.000 claims description 2
- 102000020897 Formins Human genes 0.000 claims description 2
- 108091022623 Formins Proteins 0.000 claims description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 2
- 238000000746 purification Methods 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 5
- 210000004911 serous fluid Anatomy 0.000 abstract description 3
- 241000723377 Coffea Species 0.000 description 99
- 239000000284 extract Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 3
- 229910001651 emery Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000287 crude extract Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 235000021539 instant coffee Nutrition 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000337007 Oceania Species 0.000 description 1
- 241001107098 Rubiaceae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F5/00—Coffee; Coffee substitutes; Preparations thereof
- A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
- A23F5/26—Extraction of water-soluble constituents
- A23F5/262—Extraction of water-soluble constituents the extraction liquid flows through a stationary bed of solid substances, e.g. in percolation columns
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- Life Sciences & Earth Sciences (AREA)
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- Polymers & Plastics (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
The invention relates to the technical field of coffee residue extraction, in particular to a device and a method for extracting coffee from coffee residues, and the device comprises a grinding tank, a filtering tank and a rectifying tank, wherein supporting legs are welded on the outer wall of the bottom of the grinding tank, a conveying pipe extending into the grinding tank is inserted into the outer wall of one side of each supporting leg, one end, far away from the grinding tank, of each conveying pipe extends into the filtering tank, bases are welded on two sides of the outer wall of the bottom of the filtering tank, a discharging pipe extending into the filtering tank is inserted into one side of the outer wall of the bottom of the filtering tank, one end, far away from the filtering tank, of each discharging pipe extends into the rectifying tank, and a discharging pipe extending into the rectifying tank is inserted into the. The coffee grounds are poured into the grinding tank for grinding, so that the coffee grounds particles are reduced, the coffee grounds are changed into serous fluid, and the subsequent treatment of the coffee grounds is facilitated; the extraction rate of the coffee grounds is improved through rectification in a rectification tank, grinding in a grinding tank, filtering in a filtering tank and subsequent standing purification treatment.
Description
Technical Field
The invention relates to the technical field of coffee grounds extraction, in particular to a device and a method for extracting coffee from coffee grounds.
Background
Coffee is perennial evergreen shrub or small arbor of the genus coffea of the family rubiaceae, is native to the central and northern part of africa, and is widely planted in tropical and subtropical areas such as asia, africa, latin america, oceania, etc., green coffee beans are endosperm parts of coffee fruits, and are prepared by dry processing (main process flow: fruit drying, peeling, removing peel, screening and grading) or wet processing (main process flow: cleaning, peeling, fermenting, washing, soaking, drying, peeling, polishing, grading and sorting) of ripe fresh coffee fruits as raw materials.
Chinese patent No. CN108208277A provides a method for extracting coffee extract from coffee grounds, which comprises the steps of performing dry distillation on the coffee grounds at 350-420 ℃ under anaerobic conditions to obtain coffee grounds fraction; carrying out reduced pressure rectification on the coffee residue fraction at 45-65 ℃ and 0.03-0.05MPa to obtain a coffee crude extract; standing and layering the coffee crude extract to obtain supernatant; purifying the upper oil phase to obtain coffee extract. According to the invention, through optimization of process flow and process conditions, coffee grounds generated in production of instant coffee are recycled, fractions are collected through high-temperature dry distillation, the fractions are rectified under reduced pressure, a crude coffee extract is collected, the crude coffee extract is subjected to standing and layering, a supernatant liquid is taken, and then the coffee extract is obtained through purification, wherein the coffee extract has strong baking aroma, is colorless or yellowish, clean and uniform.
Chinese patent No. CN211097633U provides a modular instant coffee grounds squeezes reflux unit, relates to coffee bean processing field, including the buffer tank body, coffee grounds squeezer and backward flow extraction element, the buffer tank is internal to be equipped with rotatory pull throughs, make full use of the kinetic energy of exhaust high pressure coffee grounds and steam in the extraction tank, promote the vapour movable vane, drive the spiral stirring leaf of below through the pivot, continuously stir the mediation discharging pipe, prevent the jam that wet coffee grounds overstock caused.
At present, the present coffee grounds extraction equipment generally adopts the squeezing method to extract the coffee grounds, so that the extraction rate of the coffee grounds is low, resources are wasted, meanwhile, the present coffee grounds extraction equipment generally directly extracts the coffee grounds when extracting, the particles of the coffee grounds are large, the subsequent extraction equipment is influenced to extract the coffee grounds, and therefore, the device and the method for extracting coffee from the coffee grounds need to be designed urgently to solve the problems.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an apparatus and a method for extracting coffee from coffee grounds, which have a high extraction rate and can treat coffee grounds during extraction.
In order to achieve the purpose, the invention adopts the technical scheme that:
a device for extracting coffee from coffee grounds comprises a grinding tank, a filtering tank and a rectifying tank, wherein supporting legs are welded on the outer wall of the bottom of the grinding tank, a material conveying pipe extending into the grinding tank is inserted and connected onto the outer wall of one side of the supporting legs, one end, far away from the grinding tank, of the material conveying pipe extends into the filtering tank, bases are welded on two sides of the outer wall of the bottom of the filtering tank, a material discharging pipe extending into the filtering tank is inserted and connected onto one side of the outer wall of the bottom of the filtering tank, one end, far away from the filtering tank, of the material discharging pipe extends into the rectifying tank, a material discharging pipe extending into the rectifying tank is inserted and connected onto the outer wall of one side of the rectifying tank close to the bottom, a second air cylinder is installed on the outer wall of one side of the filtering tank through bolts, a base plate is installed on the output end of the second air cylinder through, the outer wall of the side face of the rubber ring is contacted with the inner wall of the side face of the filter tank, a mounting groove is formed in the inner wall of the side face of the filter tank, a filter screen frame is mounted in the mounting groove through bolts, a filter screen is mounted in the filter screen frame through bolts, a slag discharge pipe extending into the mounting groove is inserted into one side of the outer wall of the bottom of the filter tank, a groove is formed in one side of the outer wall of the top of the filter tank, a cylinder is mounted on one side of the inner wall of the bottom of the groove through bolts, a base plate positioned in the mounting groove is mounted at the output end of the cylinder through bolts, a sponge block is bonded on the outer wall of one side of the base plate, the outer wall of one side of the sponge block is contacted with the filter screen, a feeding pipe extending into the grinding tank is inserted into one side of the outer wall of the top, grinding pot bottom inner wall one side is rotated through the bearing and is connected with lower emery wheel, and leaves the gap between lower emery wheel and the last shell of grinding, driving motor is installed through the bolt in grinding pot bottom outer wall one side, and driving motor's output shaft is fixed connection through parallel key and lower emery wheel, it has the gas-supply pipe to peg graft on the outer wall of rectification tank top, and gas-supply pipe and rectification tank link up each other, the inside filter screen post of installing through the bolt of gas-supply pipe, install the filter that is equidistant structure and distributes on the inner wall of rectification tank side through the bolt, and set up the through-hole that the equidistance is the annular structure and distributes on the outer wall of filter top, the filter cloth is installed through the bolt to the through-hole inside, the inner wall of rectification tank both sides is close to bottom.
The key concept of the technical scheme is as follows: when the device is used for extracting coffee grounds, workers can pour the coffee grounds into the grinding tank for grinding, so that coffee grounds particles are reduced, the coffee grounds are changed into slurry, and subsequent devices can conveniently extract the coffee grounds; the method is simple to operate, and the extraction rate of the coffee grounds can be improved through rectification in the rectification tank, grinding in the grinding tank, filtering in the filtering tank and subsequent standing purification treatment.
Furthermore, a return pipe is inserted into one side of the outer wall of the top of the rectifying tank, the return pipe is communicated with the rectifying tank, and one end, far away from the rectifying tank, of the return pipe extends into the gas transmission pipe.
Furthermore, the inner wall of the side face of the rectifying tank is provided with mesh plates close to the top by bolts, and the outer wall of the bottom of each mesh plate is provided with pointed cones distributed in an annular structure at equal intervals.
Further, the inner wall of the side face of the rectifying tank is provided with a fan close to the top through a bolt, and the fan is positioned above the mesh plate.
Further, the filter screen includes coarse strainer layer, be provided with activated carbon layer on the outer wall of coarse strainer layer one side, and be provided with fine strainer layer on the outer wall of activated carbon layer one side.
A method for extracting coffee from coffee grounds comprises the following steps:
s1, grinding raw materials: weighing a proper amount of coffee beans, grinding the coffee beans by using a grinder, and then obtaining finished coffee powder;
s2, extraction and deslagging: pouring the ground coffee powder in the last step into extraction equipment, then starting the extraction equipment, extracting for-min, and then discharging slag to obtain wet coffee residues:
s3, wet slag grinding: pouring the coffee wet residue obtained in the last step into a grinding tank through a feeding pipe, and then starting a driving motor by a worker to enable a lower grinding wheel to rotate, so that the coffee wet residue is ground more finely under the cooperation of an upper grinding shell, and meanwhile, warm water can be added into the grinding tank through a water inlet pipe during grinding;
s4, slurry filtering: after the grinding in the previous step is finished, a worker can open a control valve on a material conveying pipe to enable slurry inside the grinding tank to flow into a filtering tank through the material conveying pipe, and then the worker can start a second air cylinder to enable a base plate to move inside the filtering tank to extrude the slurry, so that the slurry can quickly pass through a filter screen to be quickly filtered, and the slurry without more impurities is obtained;
s5, slurry rectification: during the last step of filtration, a worker can open a control valve on a discharge pipe to enable the filtered slurry to flow into the rectifying tank through the discharge pipe, then the worker starts a heating wire and a fan to enable the rectifying tank to operate, so that the slurry is rectified, and meanwhile the rectified slurry is discharged out of the rectifying tank through a discharge pipe;
s6, standing and collecting the slurry: after the rectification in the last step is finished, the staff can pour the rectified slurry into a vacuum standing tank, then the standing tank is kept standing for a period of time, the slurry is layered, then the staff collects the supernatant, and meanwhile, the supernatant is purified by purifying equipment to obtain clean slurry.
Further, the coffee beans in the S1 are one of roasted arabica, robusta and liberica coffee beans, and the coffee beans are ground to 5-50 meshes to be coffee powder.
Further, the extraction temperature of the coffee powder in the S2 is 120-250 ℃, and the extraction pressure is 0.5-2 MPa.
Further, in the S2, the moisture content of the coffee wet residue is 68%, the fat content is 3.7%, the protein content is 4.2%, and the ash content is 0.15%.
Further, the standing time in the S6 is 3-6h, and the purification equipment is an activated carbon column.
The invention has the beneficial effects that: (1) when the grinding tank designed by the invention is used for extracting coffee grounds, workers can pour the coffee grounds into the grinding tank for grinding, so that coffee grounds particles are reduced, the coffee grounds are changed into serous fluid, and the subsequent equipment can conveniently extract the coffee grounds; (2) the coffee grounds extraction method designed by the invention is simple to operate, and can improve the extraction rate of the coffee grounds through rectification of the rectification tank, grinding of the grinding tank, filtering of the filtering tank and subsequent standing purification treatment; (3) according to the first air cylinder designed by the invention, when the ground slurry is filtered by using the filtering tank, a worker can start the first air cylinder at regular time to enable the sponge block to move on the filter screen, so that the filter screen is prevented from being blocked by impurities in the slurry, and the filter screen is convenient to clean; (4) according to the fan, the mesh plate and the filter screen column designed by the invention, when the rectification tank is used for rectification, the fan can quickly discharge evaporated gas out of the rectification tank, so that the rectification effect of the rectification tank is improved, and the mesh plate and the filter screen column can flush and drip materials carried in water vapor so as to reduce the waste of resources.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a schematic diagram of the configuration of the grinding pot of the present invention;
FIG. 3 is a schematic view of the canister construction of the present invention;
FIG. 4 is a schematic diagram of a rectification tank structure of the present invention;
FIG. 5 is a schematic view of a screen construction of the present invention;
fig. 6 is a flow chart of the operation of the present invention.
Description of reference numerals:
1-grinding tank, 2-feeding pipe, 3-water inlet pipe, 4-conveying pipe, 5-filtering tank, 6-discharging pipe, 7-rectifying tank, 8-base, 9-slag discharging pipe, 10-supporting leg, 11-lower grinding wheel, 12-upper grinding shell, 13-driving motor, 14-mounting groove, 15-groove, 16-first cylinder, 17-filter screen frame, 18-filter screen, 19-base plate, 20-sponge block, 21-second cylinder, 22-base plate, 23-rubber ring, 24-discharging pipe, 25-heating wire, 26-filter plate, 27-mesh plate, 28-fan, 29-gas conveying pipe, 30-reflux pipe, 31-tip cone, 32-filter screen column, 33-through hole, 33-filter screen column, 34-activated carbon layer, 35-coarse filter screen layer and 36-fine filter screen layer.
Detailed Description
The invention is further described below with reference to the following figures and specific examples:
a device for extracting coffee from coffee grounds comprises a grinding tank 1, a filtering tank 5 and a rectifying tank 7, wherein supporting legs 10 are welded on the outer wall of the bottom of the grinding tank 1, a conveying pipe 4 extending into the grinding tank 1 is inserted and connected onto the outer wall of one side of each supporting leg 10, the conveying pipe 4 is convenient for conveying ground slurry into the filtering tank 5, one end, far away from the grinding tank 1, of the conveying pipe 4 extends into the filtering tank 5, bases 8 are welded on two sides of the outer wall of the bottom of the filtering tank 5, the filtering tank 5 is convenient to support by the bases 8, a discharging pipe 6 extending into the filtering tank 5 is inserted and connected onto one side of the outer wall of the bottom of the filtering tank 5, one end, far away from the filtering tank 5, of the discharging pipe 6 extends into the rectifying tank 7, a discharging pipe 24 extending into the rectifying tank 7 is inserted and connected onto the outer wall of one side of the rectifying tank 7, and close to the bottom, and the discharging pipe 24 is convenient, the outer wall of one side of the filtering tank 5 is provided with a second cylinder 21 through a bolt, the model of the second cylinder 21 is preferably CDA2B50-400Z and is used for providing power for the movement of a base disc 22, the output end of the second cylinder 21 is provided with the base disc 22 through a bolt, the base disc 22 is convenient for slurry to rapidly pass through the filter screen 18 under the action of the second cylinder 21, the base disc 22 is connected inside the filtering tank 5 in a sliding manner, the outer wall of the side surface of the base disc 22 is sleeved with a rubber ring 23, the base disc 22 is convenient for the base disc 22 to be in close contact with the inner wall of the filtering tank 5, the outer wall of the side surface of the rubber ring 23 is in mutual contact with the inner wall of the side surface of the filtering tank 5, the inner wall of the side surface of the filtering tank 5 is provided with a mounting groove 14, a filter screen frame 17 is installed inside the mounting groove 14 through a bolt, the filter screen 18 is convenient for installing the filter screen, a slag discharge pipe 9 extending into the mounting groove 14 is inserted into one side of the outer wall of the bottom of the filter tank 5, the slag discharge pipe 9 is convenient for filtered residues to flow out of the filter tank 5, a groove 15 is formed in one side of the outer wall of the top of the filter tank 5, a cylinder 16 is mounted on one side of the inner wall of the bottom of the groove 15 through a bolt, the model of the cylinder 16 is preferably CDA2B50-125Z, so that power is provided for lifting of a substrate 19, a base plate 19 positioned in the mounting groove 14 is mounted at the output end of the cylinder 16 through a bolt, a sponge block 20 is bonded on the outer wall of one side of the base plate 19, the sponge block 20 can clean the filter screen 18 under the action of the cylinder 16, the outer wall of one side of the sponge block 20 is in mutual contact with the filter screen 18, a feed pipe 2 extending into the grinding tank 1 is inserted into one side of the outer wall of the top of the grinding tank 1, meanwhile, the grinding tank 1 is convenient to clean, an upper grinding shell 12 with a conical structure is integrally formed on the inner wall of the side surface of the grinding tank 1, a lower grinding wheel 11 is rotatably connected to one side of the inner wall of the bottom of the grinding tank 1 through a bearing, the lower grinding wheel 11 is matched with the upper grinding shell 12 to grind the coffee wet residues conveniently, a gap is reserved between the lower grinding wheel 11 and the upper grinding shell 12, a driving motor 13 is installed on one side of the outer wall of the bottom of the grinding tank 1 through a bolt, the type of the driving motor 13 is preferably 86 BY35011840 and is convenient to provide power for the rotation of the lower grinding wheel 11, an output shaft of the driving motor 13 is fixedly connected with the lower grinding wheel 11 through a flat key, a gas pipe 29 is inserted and connected onto the outer wall of the top of the rectification tank 7, the gas pipe 29 is communicated with the rectification tank 7, a filter screen column 32 is installed inside the gas pipe 29 through a bolt, filter plates 26 distributed in a structure are installed on the inner, and set up on the outer wall of filter 26 top the equidistance and be the through-hole 33 that the loop configuration distributes, the filter cloth is installed through the bolt to the through-hole 33 inside, and the filter cloth is convenient for filter the thick liquid when the rectification, and the heater strip 25 is all installed through the bolt near bottom department to the inner wall in rectification tank 7 both sides, and heater strip 25 is convenient for heat the thick liquid that gets into rectification tank 7 inside and make rectification tank 7 normally work.
As apparent from the above description, the present invention has the following advantageous effects: when the device is used for extracting coffee grounds, workers can pour the coffee grounds into the grinding tank 1 for grinding, so that coffee grounds particles are reduced, the coffee grounds are changed into serous fluid, and subsequent devices can conveniently extract the coffee grounds; the method is simple to operate, and the extraction rate of the coffee grounds can be improved through rectification in the rectification tank, grinding in the grinding tank 1, filtering in the filtering tank 5 and subsequent standing purification treatment.
Furthermore, a return pipe 30 is inserted into one side of the outer wall of the top of the rectifying tank 7, the return pipe 30 facilitates the return of a part of condensed steam, the return pipe 30 is communicated with the rectifying tank 7, and one end of the return pipe 30, which is far away from the rectifying tank 7, extends into the gas pipe 29.
Further, the mesh plate 27 is all installed near top department to the inner wall of rectification jar 7 side through the bolt, and the mesh plate 27 can prevent that the inside steam of rectification jar 7 from carrying a large amount of material flows, and sets up the sharp awl 31 that the equidistance is the annular structure and distributes on the outer wall of mesh plate 27 bottom, and the steam on the mesh plate 27 of being convenient for of sharp awl 312 drips.
Further, the fan 28 is installed on the inner wall of the side face of the rectifying tank 7 close to the top through a bolt, the type of the fan 28 is preferably FZY-2E250, so that steam in the rectifying tank 7 can flow out quickly, and the fan 28 is located above the mesh plate 27.
Further, the filter screen 18 includes a coarse filter screen layer 35, the coarse filter screen layer 35 and the fine filter screen 36 can improve the filtering precision of the slurry, the activated carbon layer 34 is disposed on the outer wall of the coarse filter screen layer 35, the activated carbon layer 34 can improve the filtering effect of the filter screen 18, and the fine filter screen layer 36 is disposed on the outer wall of the activated carbon layer 34.
A method for extracting coffee from coffee grounds comprises the following steps:
s1, grinding raw materials: weighing a proper amount of coffee beans, grinding the coffee beans by using a grinder, and then obtaining finished coffee powder;
s2, extraction and deslagging: pouring the ground coffee powder in the last step into extraction equipment, then starting the extraction equipment, extracting for 10-60min, and then discharging slag to obtain wet coffee residues:
s3, wet slag grinding: pouring the coffee wet residue obtained in the last step into the grinding tank 1 through the feeding pipe 2, and then starting the driving motor 13 by a worker to rotate the lower grinding wheel 11, so that the coffee wet residue is ground more finely under the cooperation of the upper grinding shell 12, and simultaneously, warm water can be added into the grinding tank 1 through the water inlet pipe 2 during grinding;
s4, slurry filtering: after the grinding in the previous step is finished, a worker can open a control valve on the material conveying pipe 4 to enable the slurry inside the grinding tank 1 to flow into the filtering tank 5 through the material conveying pipe 4, and then the worker can start the second air cylinder 21 to enable the base disc 22 to move inside the filtering tank 5 to extrude the slurry, so that the slurry can quickly pass through the filter screen 18 to quickly filter the slurry, and the slurry without more impurities is obtained;
s5, slurry rectification: during the previous step of filtering, a worker can open a control valve on the discharge pipe 6, so that the filtered slurry can flow into the rectifying tank 7 through the discharge pipe 6, and then the worker starts the heating wire 25 and the fan 28 to enable the rectifying tank 7 to operate, so that the slurry is rectified, and meanwhile, the rectified slurry is discharged out of the rectifying tank through the discharge pipe 24;
s6, standing and collecting the slurry: after the rectification in the last step is finished, the staff can pour the rectified slurry into a vacuum standing tank, then the standing tank is kept standing for a period of time, the slurry is layered, then the staff collects the supernatant, and meanwhile, the supernatant is purified by purifying equipment to obtain clean slurry.
Further, the coffee beans in S1 are one of roasted arabica, robusta and liberica coffee beans, and the coffee beans are ground to 30 mesh to be coffee powder.
Further, the extraction temperature of the coffee powder in S2 is 180 ℃, and the extraction pressure is 1 MPa.
Further, in S2, the coffee wet grounds contain 68% of water, 3.7% of fat, 4.2% of protein and 0.15% of ash.
Further, the standing time in S6 is 5h, and the purification equipment is an activated carbon column.
By adopting the first air cylinder 16 designed above, when the filter tank 5 is used for filtering the ground slurry, a worker can start the first air cylinder 16 at regular time to enable the sponge block 20 to move on the filter screen 18, so that the filter screen 18 is prevented from being blocked by impurities in the slurry, and the filter screen 18 is convenient to clean; when rectifying tank 7 is used for rectification, fan 28 can make the gaseous discharge rectifying tank 7 of evaporation fast on, be favorable to improving the rectifying effect of rectifying tank 7, and mesh plate 27 and filter screen post 32 can make the material that carries wash in the steam and drip to be convenient for reduce the waste to the resource.
Some preferred embodiments or application examples are listed below to help those skilled in the art to better understand the technical content of the present invention and the technical contribution of the present invention with respect to the prior art:
example 1
A device for extracting coffee from coffee grounds comprises a grinding tank 1, a filtering tank 5 and a rectifying tank 7, wherein supporting legs 10 are welded on the outer wall of the bottom of the grinding tank 1, a conveying pipe 4 extending into the grinding tank 1 is inserted and connected onto the outer wall of one side of each supporting leg 10, the conveying pipe 4 is convenient for conveying ground slurry into the filtering tank 5, one end, far away from the grinding tank 1, of each conveying pipe 4 extends into the filtering tank 5, bases 8 are welded on two sides of the outer wall of the bottom of the filtering tank 5, the bases 8 are convenient for supporting the filtering tank 5, a discharging pipe 6 extending into the filtering tank 5 is inserted and connected onto one side of the outer wall of the bottom of the filtering tank 5, one end, far away from the filtering tank 5, of the discharging pipe 6 extends into the filtering tank 7, a discharging pipe 24 extending into the rectifying tank 7 is inserted and connected onto the outer wall of one side of the rectifying tank 7, the discharging pipe 24 is convenient for discharging filtered slurry into the rectifying tank 7, a second air cylinder, the model of the second cylinder 21 is preferably CDA2B50-400Z for providing power for the movement of the base disc 22, the base disc 22 is installed at the output end of the second cylinder 21 through a bolt, the base disc 22 is convenient for the slurry to rapidly pass through the filter screen 18 under the action of the second cylinder 21, the base disc 22 is connected inside the filter tank 5 in a sliding manner, the outer wall of the side surface of the base disc 22 is sleeved with a rubber ring 23, the rubber ring 23 is convenient for the base disc 22 to be in close contact with the inner wall of the filter tank 5, the outer wall of the side surface of the rubber ring 23 is in mutual contact with the inner wall of the side surface of the filter tank 5, the inner wall of the side surface of the filter tank 5 is provided with an installation groove 14, the inside of the installation groove 14 is provided with a filter screen frame 17 through a bolt, the filter screen frame 17 is convenient for the installation of the filter screen 18, the filter screen 18 is installed inside the filter screen frame 17 through a bolt, the filter screen 18 is, the slag discharge pipe 9 is convenient for filtered residues to flow out of the filter tank 5, one side of the outer wall of the top of the filter tank 5 is provided with a groove 15, one side of the inner wall of the bottom of the groove 15 is provided with a cylinder 16 through a bolt, the model of the cylinder 16 is preferably CDA2B50-125Z so as to provide power for the lifting of a substrate 19, the output end of the cylinder 16 is provided with a substrate 19 positioned in a mounting groove 14 through a bolt, the outer wall of one side of the substrate 19 is adhered with a sponge block 20, the sponge block 20 can clean the filter screen 18 under the action of the cylinder 16, the outer wall of one side of the sponge block 20 is contacted with the filter screen 18, one side of the outer wall of the top of the grinding tank 1 is inserted with a feed pipe 2 extending to the inside of the grinding tank 1, one side of the outer wall of the top of the grinding tank 1 is inserted with a water inlet pipe 3, the water inlet pipe 3 is convenient for injecting water into the grinding, one side of the inner wall of the bottom of the grinding tank 1 is rotatably connected with a lower grinding wheel 11 through a bearing, the lower grinding wheel 11 is matched with an upper grinding shell 12 to grind wet coffee residues conveniently, a gap is reserved between the lower grinding wheel 11 and the upper grinding shell 12, one side of the outer wall of the bottom of the grinding tank 1 is provided with a driving motor 13 through a bolt, the type of the driving motor 13 is preferably 86BYGH35011840 so as to provide power for the rotation of the lower grinding wheel 11, an output shaft of the driving motor 13 is fixedly connected with the lower grinding wheel 11 through a flat key, the outer wall of the top of the rectifying tank 7 is spliced with a gas pipe 29, the gas pipe 29 is communicated with the rectifying tank 7, a filter screen column 32 is arranged inside the gas pipe 29 through a bolt, the inner wall of the side surface of the rectifying tank 7 is provided with filter plates 26 which are distributed in an equidistant structure through bolts, the filter plates 26 are convenient for filtering slurry, and the outer wall of, the filter cloth is installed inside the through hole 33 through the bolt, the filter cloth is convenient for filter the slurry liquid when rectifying, the heating wires 25 are installed on the inner walls of the two sides of the rectifying tank 7 close to the bottom through the bolt, and the heating wires 25 are convenient for heating the slurry liquid entering the interior of the rectifying tank 7 to enable the rectifying tank 7 to normally work.
Wherein, a return pipe 30 is inserted into one side of the outer wall of the top of the rectifying tank 7, the return pipe 30 is convenient for a part of condensed steam to flow back, the return pipe 30 is communicated with the rectifying tank 7, and one end of the return pipe 30 far away from the rectifying tank 7 extends into the gas pipe 29; mesh plates 27 are mounted on the inner walls of the side surfaces of the rectifying tank 7 close to the top through bolts, the mesh plates 27 can prevent steam inside the rectifying tank 7 from carrying a large amount of materials to flow out, pointed cones 31 distributed in an annular structure at equal intervals are arranged on the outer walls of the bottom of the mesh plates 27, and the pointed cones 312 are convenient for steam on the mesh plates 27 to drip; a fan 28 is mounted on the inner wall of the side face of the rectifying tank 7 close to the top through a bolt, the type of the fan 28 is preferably FZY-2E250, so that steam in the rectifying tank 7 can flow out quickly, and the fan 28 is located above the mesh plate 27; the filter screen 18 comprises a coarse filter screen layer 35, the coarse filter screen layer 35 and a fine filter screen 36 can improve the filtering precision of the slurry, an activated carbon layer 34 is arranged on the outer wall of one side of the coarse filter screen layer 35, the activated carbon layer 34 can improve the filtering effect of the filter screen 18, and the fine filter screen layer 36 is arranged on the outer wall of one side of the activated carbon layer 34
Example 2
A method for extracting coffee from coffee grounds comprises the following steps:
s1, grinding raw materials: weighing a proper amount of coffee beans, grinding the coffee beans by using a grinder, and then obtaining finished coffee powder;
s2, extraction and deslagging: pouring the ground coffee powder in the last step into extraction equipment, then starting the extraction equipment, extracting for 10-60min, and then discharging slag to obtain wet coffee residues:
s3, wet slag grinding: pouring the coffee wet residue obtained in the last step into the grinding tank 1 through the feeding pipe 2, and then starting the driving motor 13 by a worker to rotate the lower grinding wheel 11, so that the coffee wet residue is ground more finely under the cooperation of the upper grinding shell 12, and simultaneously, warm water can be added into the grinding tank 1 through the water inlet pipe 2 during grinding;
s4, slurry filtering: after the grinding in the previous step is finished, a worker can open a control valve on the material conveying pipe 4 to enable the slurry inside the grinding tank 1 to flow into the filtering tank 5 through the material conveying pipe 4, and then the worker can start the second air cylinder 21 to enable the base disc 22 to move inside the filtering tank 5 to extrude the slurry, so that the slurry can quickly pass through the filter screen 18 to quickly filter the slurry, and the slurry without more impurities is obtained;
s5, slurry rectification: during the previous step of filtering, a worker can open a control valve on the discharge pipe 6, so that the filtered slurry can flow into the rectifying tank 7 through the discharge pipe 6, and then the worker starts the heating wire 25 and the fan 28 to enable the rectifying tank 7 to operate, so that the slurry is rectified, and meanwhile, the rectified slurry is discharged out of the rectifying tank through the discharge pipe 24;
s6, standing and collecting the slurry: after the rectification in the previous step is finished, workers can pour the rectified slurry into a vacuum standing tank, then stand for a period of time to enable the slurry to be layered, then the workers collect supernatant liquid, and then purify the supernatant liquid by using purification equipment to obtain clean slurry; the coffee beans in the S1 are one of roasted Arabica, Apocynum venetum and Libilika coffee beans, and the coffee beans are ground to 30 meshes to form coffee powder; in the S2, the extraction temperature of the coffee powder is 180 ℃, and the extraction pressure is 1 MPa; in the S2, the moisture content of the coffee wet residue is 68%, the fat content is 3.7%, the protein content is 4.2%, and the ash content is 0.15%; and standing for 5 hours in S6, wherein the purification equipment is an activated carbon column.
In summary, in use, s1. raw material grinding: weighing a proper amount of coffee beans, grinding the coffee beans by using a grinder, and then obtaining finished coffee powder; s2, extraction and deslagging: pouring the ground coffee powder in the last step into extraction equipment, then starting the extraction equipment, extracting for 10-60min, and then discharging slag to obtain wet coffee residues; s3, wet slag grinding: pouring the coffee wet residue obtained in the last step into the grinding tank 1 through the feeding pipe 2, and then starting the driving motor 13 by a worker to rotate the lower grinding wheel 11, so that the coffee wet residue is ground more finely under the cooperation of the upper grinding shell 12, and simultaneously, warm water can be added into the grinding tank 1 through the water inlet pipe 2 during grinding; s4, slurry filtering: after the grinding in the previous step is finished, a worker can open a control valve on the material conveying pipe 4 to enable the slurry inside the grinding tank 1 to flow into the filtering tank 5 through the material conveying pipe 4, and then the worker can start the second air cylinder 21 to enable the base disc 22 to move inside the filtering tank 5 to extrude the slurry, so that the slurry can quickly pass through the filter screen 18 to quickly filter the slurry, and the slurry without more impurities is obtained; s5, slurry rectification: during the previous step of filtering, a worker can open a control valve on the discharge pipe 6, so that the filtered slurry can flow into the rectifying tank 7 through the discharge pipe 6, and then the worker starts the heating wire 25 and the fan 28 to enable the rectifying tank 7 to operate, so that the slurry is rectified, and meanwhile, the rectified slurry is discharged out of the rectifying tank through the discharge pipe 24; s6, standing and collecting the slurry: after the rectification in the last step is finished, the staff can pour the rectified slurry into a vacuum standing tank, then the standing tank is kept standing for a period of time, the slurry is layered, then the staff collects the supernatant, and meanwhile, the supernatant is purified by purifying equipment to obtain clean slurry.
The present invention has been described with reference to the above embodiments and the accompanying drawings, however, the above embodiments are only examples for carrying out the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, modifications and equivalent arrangements included within the spirit and scope of the claims are included within the scope of the invention.
Claims (10)
1. An apparatus for extracting coffee from coffee grounds, comprising: the grinding tank comprises a grinding tank, a filtering tank and a rectifying tank, wherein supporting legs are welded on the outer wall of the bottom of the grinding tank, a conveying pipe extending into the grinding tank is inserted into the outer wall of one side of each supporting leg, one end, far away from the grinding tank, of the conveying pipe extends into the filtering tank, bases are welded on two sides of the outer wall of the bottom of the filtering tank, a discharging pipe extending into the filtering tank is inserted into one side of the outer wall of the bottom of the filtering tank, one end, far away from the filtering tank, of the discharging pipe extends into the rectifying tank, discharging pipes extending into the rectifying tank are inserted into the positions, close to the bottom, of the outer wall of one side of the rectifying tank, a second air cylinder is installed on the outer wall of one side of the filtering tank through bolts, a base plate is installed on the outer wall of the side of the filtering tank through bolts, a rubber ring is sleeved on the outer wall of the side, the grinding tank is characterized in that a mounting groove is formed in the inner wall of the side face of the filtering tank, a filtering screen frame is mounted in the mounting groove through a bolt, a filtering screen is mounted in the filtering screen frame through a bolt, a slag discharge pipe extending into the mounting groove is inserted into one side of the outer wall of the bottom of the filtering tank, a groove is formed in one side of the outer wall of the top of the filtering tank, a first air cylinder is mounted on one side of the inner wall of the bottom of the groove through a bolt, a base plate located in the mounting groove is mounted at the output end of the first air cylinder through a bolt, a sponge block is bonded on the outer wall of one side of the base plate, the outer wall of one side of the sponge block is in contact with the filtering screen, a feeding pipe extending into the grinding tank is inserted into one side of the outer wall of the top of the grinding tank, a water inlet pipe is, and leave the gap between lower grinding wheel and the last mill shell, driving motor is installed through the bolt to grinding vessel bottom outer wall one side, and driving motor's output shaft is fixed connection through parallel key and lower grinding wheel, it has the gas-supply pipe to peg graft on the outer wall of rectification tank top, and the gas-supply pipe link up each other with the rectification tank, the filter screen post is installed through the bolt to the gas-supply pipe is inside, install the filter that is equidistance structural distribution through the bolt on the inner wall of rectification tank side, and set up the through-hole that the equidistance is the ring configuration and distributes on the outer wall of filter top, the filter cloth is installed through the bolt to the through-hole inside, the heater strip is all installed through the bolt near bottom department to the inner.
2. An apparatus for extracting coffee from coffee grounds according to claim, wherein: a backflow pipe is inserted into one side of the outer wall of the top of the rectifying tank in a plugging mode, the backflow pipe is communicated with the rectifying tank, and one end, far away from the rectifying tank, of the backflow pipe extends into the gas conveying pipe.
3. An apparatus for extracting coffee from coffee grounds according to claim, wherein: the inner wall of the side face of the rectifying tank is provided with mesh plates close to the top by bolts, and the outer wall of the bottom of each mesh plate is provided with pointed cones distributed in an annular structure at equal intervals.
4. An apparatus for extracting coffee from coffee grounds according to claim, wherein: the inner wall of the side face of the rectifying tank is provided with a fan close to the top through a bolt, and the fan is positioned above the mesh plate.
5. An apparatus for extracting coffee from coffee grounds according to claim, wherein: the filter screen comprises a coarse filter screen layer, an activated carbon layer is arranged on the outer wall of one side of the coarse filter screen layer, and a fine filter screen layer is arranged on the outer wall of one side of the activated carbon layer.
6. A method for extracting coffee from coffee grounds is characterized by comprising the following steps: the method comprises the following steps:
s1, grinding raw materials: weighing a proper amount of coffee beans, grinding the coffee beans by using a grinder, and then obtaining finished coffee powder;
s2, extraction and deslagging: pouring the ground coffee powder in the last step into extraction equipment, starting the extraction equipment, extracting for-min, and then discharging slag to obtain wet coffee residues;
s3, wet slag grinding: pouring the coffee wet residue obtained in the last step into a grinding tank through a feeding pipe, and then starting a driving motor by a worker to enable a lower grinding wheel to rotate, so that the coffee wet residue is ground more finely under the cooperation of an upper grinding shell, and meanwhile, warm water can be added into the grinding tank through a water inlet pipe during grinding;
s4, slurry filtering: after the grinding in the previous step is finished, a worker can open a control valve on a material conveying pipe to enable slurry inside the grinding tank to flow into a filtering tank through the material conveying pipe, and then the worker can start a second air cylinder to enable a base plate to move inside the filtering tank to extrude the slurry, so that the slurry can quickly pass through a filter screen to be quickly filtered, and the slurry without more impurities is obtained;
s5, slurry rectification: during the last step of filtration, a worker can open a control valve on a discharge pipe to enable the filtered slurry to flow into the rectifying tank through the discharge pipe, then the worker starts a heating wire and a fan to enable the rectifying tank to operate, so that the slurry is rectified, and meanwhile the rectified slurry is discharged out of the rectifying tank through a discharge pipe;
s6, standing and collecting the slurry: after the rectification in the last step is finished, the staff can pour the rectified slurry into a vacuum standing tank, then the standing tank is kept standing for a period of time, the slurry is layered, then the staff collects the supernatant, and meanwhile, the supernatant is purified by purifying equipment to obtain clean slurry.
7. The method for extracting coffee from coffee grounds as claimed in claim 6, wherein: the coffee beans in the S1 are one of roasted Arabica, Apocynum venetum and Libifica coffee beans, and the coffee beans are ground to 5-50 meshes to form coffee powder.
8. The method for extracting coffee from coffee grounds as claimed in claim 6, wherein: the extraction temperature of the coffee powder in the S2 is 120-250 ℃, and the extraction pressure is 0.5-2 MPa.
9. The method for extracting coffee from coffee grounds as claimed in claim 6, wherein: in the S2, the moisture content of the coffee wet residue is 68%, the fat content is 3.7%, the protein content is 4.2%, and the ash content is 0.15%.
10. The method for extracting coffee from coffee grounds as claimed in claim 6, wherein: and standing for 3-6h in the S6, wherein the purifying equipment is an activated carbon column.
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| CN202110252501.9A CN112931669A (en) | 2021-03-09 | 2021-03-09 | Device and method for extracting coffee from coffee grounds |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113908586A (en) * | 2021-10-28 | 2022-01-11 | 安徽瞳清堂生物科技有限公司 | Traditional Chinese medicine extraction equipment and method for eye cold compress gel production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377232A (en) * | 1999-05-18 | 2002-10-30 | 雀巢制品公司 | Stable coffee concentrate system |
| CN108471765A (en) * | 2015-12-11 | 2018-08-31 | 基伊埃工程技术股份有限公司 | Method for producing concentrated coffee product |
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2021
- 2021-03-09 CN CN202110252501.9A patent/CN112931669A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377232A (en) * | 1999-05-18 | 2002-10-30 | 雀巢制品公司 | Stable coffee concentrate system |
| CN108471765A (en) * | 2015-12-11 | 2018-08-31 | 基伊埃工程技术股份有限公司 | Method for producing concentrated coffee product |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113908586A (en) * | 2021-10-28 | 2022-01-11 | 安徽瞳清堂生物科技有限公司 | Traditional Chinese medicine extraction equipment and method for eye cold compress gel production |
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Application publication date: 20210611 |