CN113368528B

CN113368528B - Plant extract extraction system

Info

Publication number: CN113368528B
Application number: CN202110462147.2A
Authority: CN
Inventors: 何子轩; 林佳锐
Original assignee: Lyuliang Yeshanpo Food Co ltd
Current assignee: Lyuliang Yeshanpo Food Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2022-09-02
Anticipated expiration: 2041-04-27
Also published as: CN113368528A

Abstract

The invention belongs to the technical field of extraction systems, and particularly relates to a plant extract extraction system which comprises a stirring unit and an impurity removal unit, wherein the stirring unit comprises an extraction cylinder, a cylinder cover, a base, a feeding hole, a discharging hole, a stirring rod and a first shaft; the barrel cover is arranged at the top of the extraction barrel, and the base is arranged at the bottom of the extraction barrel; according to the invention, the stirring unit and the impurity removal unit are arranged in the extraction system, the plant raw materials and the extraction solvent are poured into the stirring area in the extraction cylinder, and the first shaft and the stirring rod are driven by the motor to extract the plant raw materials; and plant residues are collected into the annular chamber through the centrifugal action of the second baffle plate when the plant extracting solution is introduced into the impurity removing area and rotates, so that the purity of the finally obtained plant extracting solution is higher, and the extraction efficiency is improved.

Description

Plant extract extraction system

Technical Field

The invention belongs to the technical field of extraction systems, and particularly relates to a plant extract extraction system.

Background

The plant extract is a product formed by taking plants as raw materials, directionally obtaining and concentrating one or more active ingredients in the plants through a physical and chemical extraction and separation process according to the requirements of the application of an extracted final product, and not changing the structures of the active ingredients. The product concept of the plant extract is wider, and glycosides, acids, polyphenols, polysaccharides, terpenoids, flavones, alkaloids, etc. are formed according to the different components of the plant extract. At present, the application of plant extract is very wide, and the plant extract can be used in the pharmaceutical industry, the food industry, the health industry, the beauty industry and other industries, but the directly obtained plant extract cannot be directly used, some plant extracts even contain toxic substances, and the plant extract can be used after being purified after various detections, and the extraction is one of the methods.

The technical scheme that a patent relates to a plant extract extraction device also appears in the prior art, and a Chinese patent with the application number of CN201720460873X discloses a plant extract extraction device, and the structure of the plant extract extraction device comprises a storage battery, a motor, a valve, a distillation device, a raw material storage tank, pretreatment equipment, a microwave extractor, a mixer, a liquid outlet, a filter, a separator, a heat preservation layer and a groove, wherein the storage battery is connected with the motor, the motor is provided with the valve, the valve is arranged on the distillation device, and the heat preservation layer is connected with the groove. The beneficial effects of the utility model are that being equipped with the distillation plant, through motor and valve cooperation, connecting through filter and separator and drawing the vegetation liquid, then disinfecting through alcohol burner and asbestos gauge, then flow into the microwave extractor through the liquid storage ware, the method of drawing the vegetation liquid like this is comparatively simple, and the extraction efficiency of the extraction plant of vegetation extract becomes high, is provided with filter and separator, will make the extracted vegetation extract do not have the problem that contains impurity; however, the above invention still has the defect that when the above patent is applied to the solid-liquid extraction of plant raw materials to extract effective components in the plant raw materials, the plant residues formed are more, so that during the extraction process, a great amount of plant residues in the filter are accumulated, which not only affects the purity of the finally obtained plant extract, but also easily causes blockage, and affects the extraction efficiency; so that the technical solution is limited.

In view of this, the present invention provides a plant extract extraction system to solve the above technical problems.

Disclosure of Invention

In order to make up the defects of the prior art, the problems that the purity of the finally obtained plant extract is influenced, the blockage is easily caused and the extraction efficiency is influenced because more plant residues are formed when the conventional plant extract extraction system is applied to the solid-liquid extraction of plant raw materials are solved; the invention provides a plant extract extraction system.

The technical scheme adopted by the invention for solving the technical problems is as follows: the plant extract extraction system comprises a stirring unit and an impurity removal unit, wherein the stirring unit comprises an extraction cylinder, a cylinder cover, a base, a feeding hole, a discharging hole, a stirring rod and a first shaft; the barrel cover is installed at the top of the extraction barrel, the base is installed at the bottom of the extraction barrel, a first baffle is arranged on the inner surface of the side wall of the extraction barrel close to the top, the upper surface of the first baffle is in an arc shape which is bent downwards, and the area between the first baffle and the barrel cover is a stirring area; a heater is arranged at the position of the side wall of the extraction cylinder in the stirring area; a solvent tank is arranged above the cylinder cover, extraction solvent is filled in the solvent tank, the solvent tank is communicated with the interior of the extraction cylinder through uniformly arranged spray pipes, and the end parts of the spray pipes are inclined towards the direction close to the side wall of the extraction cylinder and are provided with automatic spray heads; the first shaft is arranged in the middle of the inside of the extraction cylinder, the bottom of the first shaft penetrates through the bottom of the extraction cylinder and is connected with a motor arranged on the outer side, stirring rods are uniformly arranged on the outer surface of the first shaft in a stirring area, and the first shaft penetrates through a first hole formed in the middle of a first baffle; the feed inlet is arranged on the barrel cover, and the discharge outlet is arranged at the position, close to the bottom, of the side wall of the extraction barrel; the impurity removal unit is arranged below the first baffle and is used for removing impurities from the plant extracting solution;

the impurity removing unit comprises a second baffle, an annular chamber, a first filter screen and a second filter screen; a second baffle is arranged at the position, below the first baffle, of the outer surface of the first shaft, an impurity removal area is arranged in an area between the first baffle and the second baffle, and a standing area is arranged in an area between the second baffle and the bottom of the extraction cylinder; an annular chamber is arranged at the position, located inside the impurity removing area, of the inner surface of the side wall of the extraction cylinder, the bottom surface of the annular chamber is downward inclined and located below the second baffle, first grooves are uniformly formed in the position, close to the first shaft, of the side wall of the annular chamber and located below the second baffle, and a first filter screen is arranged in each first groove; the upper surface of the second baffle is in an arc shape which is bent downwards, and the end part of the second baffle extends into the annular chamber through a first annular groove arranged on the side wall of the annular chamber; no. two holes are evenly arranged at the position, close to the first shaft, on the second baffle, and a second filter screen is arranged at the position, above the second hole, on the upper surface of the second baffle.

When the plant material extracting device works, after plant materials are poured into the extracting barrel through the feeding hole, the plant materials fall on the first baffle plate of the stirring area, then the motor and the heater are started, the motor drives the first shaft to rotate, and the first shaft drives the stirring rod to act on the plant materials in the stirring area; after the motor is started for a period of time, the automatic spray nozzle is started, so that the extraction solvent in the solvent tank uniformly falls on the plant raw materials through the spray pipe and the automatic spray nozzle, and effective components contained in the plant raw materials are separated out under the stirring and extruding action of the stirring rod and dissolved in the extraction solvent to form plant extracting solution; the end part of the spray pipe is inclined, so that the flowing extraction solvent uniformly and fully acts on the plant raw materials, and the condition that the sprayed extraction solvent directly flows out of the first hole to influence the utilization efficiency of the extraction solvent is avoided; the heating action of the heater increases the solubility of the effective components, so that the effective components are further dissolved in the extraction solvent; the upper surface of the first baffle is in an arc shape which is bent downwards, so that the plant extracting solution flows into the first hole along the upper surface of the first baffle and falls on the upper surface of the second baffle along the surface of the first shaft; the first shaft can rotate in the first hole to effectively clean plant residues attached to the first hole, so that the first hole is smooth; the second baffle plate drives the plant extracting solution accumulated on the second baffle plate to rotate together when rotating along with the first shaft, so that the plant extracting solution in the impurity removing area flows around the first shaft in a rotating mode and is under the action of centrifugal force, and residues in the plant extracting solution deviate in the direction far away from the first shaft under the action of the centrifugal force; the plant extracting solution close to the first shaft part flows into the second hole after being filtered by the second filter screen and falls into a standing area at the bottom of the extracting cylinder through the second hole; because the residue content in the plant extract close to the first shaft part is less under the rotation action, the plant residue attached to the second filter screen is less, and the plant extract is less obstructed when passing through the second filter screen; the plant extracting solution far away from the first shaft part has more plant residues, so under the action of centrifugal force, the plant extracting solution far away from the first shaft part continuously deviates from the first shaft and flows into the annular chamber through the edge part of the second baffle plate; then the plant extracting solution flows along the inclined bottom surface of the annular cavity and flows into the standing area through the first groove, plant residues contained in the plant extracting solution are collected into the annular cavity under the filtering action of the first filter screen while the plant extracting solution passes through the first groove, and the purity of the plant extracting solution passing through the first groove is ensured to be high; along with the accumulation of the plant residues, the accumulated plant residues can play a role in filtering, so that the plant extract is more fully purified when passing through the accumulated plant residues and the first filter screen; through the action of the annular cavity, residues in the plant extracting solution are collected into the annular cavity, so that the plant residues in the plant extracting solution are prevented from being accumulated on the second filter screen in a large amount, the pure plant extracting solution in the middle of the second baffle can be ensured to flow out through the second hole rapidly, and the extraction efficiency of the plant extracting solution is improved; standing the plant extractive solution in the standing region for a period of time to precipitate residue in the plant extractive solution, and discharging supernatant from the plant extractive solution through the discharge port to obtain pure plant extractive solution.

Preferably, the annular chamber is made of transparent glass, a second groove is formed in the position, corresponding to the first groove, of the bottom of the annular chamber, and the second groove is communicated with the outside; the first plate is arranged on the second groove and detachably connected with the second groove; through the effect of No. two grooves, clear up annular chamber inside.

When the annular chamber works, the first groove can be blocked due to excessive accumulation of plant residues in the annular chamber; when the accumulated plant residues are higher than the edge part of the second baffle plate, the flowing plant extracting solution impacts the plant residues, and the accumulated plant residues can be diffused and enter the plant extracting solution above the second baffle plate again; therefore, when the plant residues in the annular chamber are excessively accumulated through the annular chamber, the motor is turned off, the plant extracting solution on the first baffle plate is waited to stop gradually and enters a stable state, and when the plant extracting solution entering the annular chamber fully seeps out through the first filter screen, the first plate is taken out through the second groove, and the plant residues are remained on the first plate near the first groove when the plant extracting solution seeps out from the first filter screen in the first groove; consequently, when taking out a board, the inside accumulational plant residue of annular cavity leaves annular cavity along with a board, stretches into annular cavity with the brush through No. two grooves afterwards and clears up for the indoor plant residue of annular cavity is effectively clear away, avoids causing the jam to a groove, and hinders the edulcoration to the plant extract that flows into annular cavity inside.

Preferably, the first filter screen is installed on the first plate, a limiting groove is formed in the upper bottom surface of the first groove, and the top of the first filter screen is embedded into the limiting groove; the first filter screen is driven to be separated from the annular cavity when the first plate is detached, so that the first filter screen is effectively cleaned.

When the device works, the first filter screen is taken out while the first plate is taken out, plant residues attached to the first filter screen are cleaned while the first plate is cleaned, and the phenomenon that plant extracting solution enters a standing area through the first filter screen due to the fact that the plant residues attached to the first filter screen are too much is avoided, so that the extracting efficiency of the plant extracting solution is influenced; in addition, the limiting groove at the top of the first filter screen has a limiting effect on the first filter screen, and the first filter screen is ensured to be kept in a stable state when the flowing plant extracting solution is filtered.

Preferably, the upper surface of the first plate is provided with a cleaning sheet, and the end part of the cleaning sheet extends into the annular chamber and is in contact with the top of the annular chamber; bristles are uniformly arranged on the surface of the cleaning sheet close to the top of the annular cavity, are positioned above the second baffle and are in contact with the side wall of the annular cavity; the cleaning sheet drives the bristles to clean the interior of the annular chamber more thoroughly.

When the cleaning plate works, the bristles on the cleaning plate are positioned above the second baffle plate, so when the plant extracting solution on the second baffle plate, which is close to the edge part, falls into the annular chamber under the centrifugal action, the bristles cannot block the inflowing plant extracting solution, and the plant extracting solution can smoothly flow into the annular chamber; when a plate is detached, the cleaning sheet moves along with the plate, and the bristles on the cleaning sheet play a role in cleaning the side wall of the annular cavity chamber in the moving process along with the cleaning sheet, so that the attached plant residues on the side wall of the annular cavity chamber are fully brought to the outdoor side of the annular cavity chamber under the action of the bristles, the plant residues in the annular cavity chamber are cleaned more thoroughly, and the extraction efficiency of plant extracting solution is further prevented from being influenced by blockage of a groove in the annular cavity chamber.

Preferably, the position of the outer surface of the first shaft, which is close to the first hole, is uniformly provided with impurity removing plates, and the end part of each impurity removing plate, which is close to the inner surface of the first hole, is in clearance fit with the inner surface of the first hole; the smoothness of the first hole is ensured through the function of the impurity removing plate.

When the device works, the impurity removing plate on the first shaft rotates in the first hole along with the first shaft, so that the plant raw materials in the stirring area are prevented from blocking the first hole; and because remove miscellaneous board and play the hindrance effect in a hole, guarantee that only plant extract and the vegetable residue of fritter that separates in the plant raw materials can flow into in the edulcoration district through the clearance between the adjacent miscellaneous board of removing, avoided during the bold vegetable residue gets into the edulcoration district through a hole to remove to cause the jam of annular chamber in the annular chamber under the centrifugal action of a baffle.

Preferably, the top of the impurity removing plate extends into the stirring area, the bottom of the impurity removing plate extends into the impurity removing area, and a stirring plate is arranged at the position, close to the bottom, of the side wall of the impurity removing plate; through the effect of removing miscellaneous board, avoid plant material to pile up in a hole top region on the one hand, on the other hand has accelerated the rotation of plant extract in the edulcoration district for plant extract is got more thoroughly by the edulcoration.

When the device works, the upper surface of the first baffle is arc-shaped, so that plant raw materials can be accumulated above the first hole, and plant extracting solution is prevented from entering the first hole; the part of the impurity removing plate extending into the stirring area rotates along with the first shaft, and meanwhile, the stirring effect can be achieved on the plant raw materials close to the first hole in the stirring area, so that the stirred plant raw materials are far away from the top of the first hole, and the smoothness of the first hole is further guaranteed; the stirring plate of the impurity removing plate positioned in the impurity removing area rotates along with the first shaft, and meanwhile, the stirring effect on the plant extracting solution on the second baffle can be started, so that the plant extracting solution rotates more violently; thereby ensuring that the plant residues contained in the plant extracting solution fully move to the edge part of the second baffle under the centrifugal action and enter the annular chamber to be collected.

Preferably, the surface of the second filter screen is an arc shape which is bent upwards; through No. two filter screen surface kickups for No. two filter screen surfaces fully receive the impact of plant extract, thereby make No. two filter screen surface adnexed plant residue by clear up more thoroughly.

When the device works, the surface of the second filter screen is in an arc shape which is bent upwards, when the plant extracting solution on the first baffle rotates, the surface of the second filter screen is fully impacted by the rotation of the plant extracting solution, so that plant residues attached to the second filter screen are separated from the second filter screen under the impact, and move to the annular chamber under the centrifugal action to be collected; because No. two filter screens are located a hole below, when the plant extract that a hole flows fell on No. two filter screens tops, partly plant extract directly gets into the district of stewing through No. two filter screens, and another part plant extract flows along the arc surface of No. two filter screens to with the attached vegetable residue washes away on No. two filter screens, receive the hindrance when further avoiding the plant extract to pass through No. two filter screens.

Preferably, the center of the second filter screen is deviated from the center of the first shaft; through the eccentric arrangement of No. two filter screens for the adnexed plant residue on No. two filter screens is clear away more thoroughly.

The during operation, because No. two filter screens are for an axle eccentric settings, consequently when No. two filter screens rotate along with an axle, vibrate under the eccentric rotation of No. two filter screens near the botanical extract liquid for the adnexed plant residue breaks away from No. two filter screens and mixes in the pivoted botanical extract liquid under the vibration effect on No. two filter screens, and finally collect by annular chamber, make the plant residue in the botanical extract liquid clear away more thoroughly, further final botanical extract liquid's that obtains purity.

Preferably, drainage grooves are uniformly formed in the surface of the impurity removing plate, and the end parts of the drainage grooves point to the upper surface of the second filter screen; the plant extracting solution flowing downwards from the first hole is guided by the drainage grooves to impact the upper surface of the second filter screen, so that the upper surface of the second filter screen is removed more thoroughly.

When the device works, when the plant extracting solution enters the impurity removing area along the surface of the impurity removing plate, a part of the plant extracting solution is converged under the guiding action of the drainage groove and forms water flow to fall down, the end part of the drainage groove points to the surface of the second filter screen, so that the falling water flow intensively impacts the surface of the second filter screen, the second filter screen is violently vibrated, and plant residues on the second filter screen are cleaned more thoroughly; and when the water flow formed by the plant extracting solution impacts the surface of the second filter screen, the speed of the plant extracting solution passing through the second filter screen is increased, and the impurity removal efficiency of the plant extracting solution is further improved.

Preferably, the discharge hole comprises a third hole and a liquid outlet pipe, and the third hole is uniformly formed in the position, located in the standing area, of the side wall of the extraction cylinder; the drain pipe is installed on No. three holes, and No. three holes that do not install the drain pipe keep the closed state through setting up the closed stopper.

During operation, because plant extract after a period of time that stews in the district that stews, remaining residue fully subsides to extraction bobbin base portion in the plant extract, the operator can highly select the No. three hole installation drain pipes of corresponding height according to plant extract this moment to discharge the higher part of purity near the top in the plant extract, obtain the better plant extract of quality.

The invention has the following beneficial effects:

1. according to the plant extract extraction system, the stirring unit and the impurity removal unit are arranged in the extraction system, plant raw materials and an extraction solvent are poured into the stirring area in the extraction cylinder, and the first shaft and the stirring rod are driven by the motor to extract the plant raw materials; and plant residues are collected into the annular chamber through the centrifugal action of the second baffle plate when the plant extracting solution is introduced into the impurity removing area and rotates, so that the purity of the finally obtained plant extracting solution is higher, and the extraction efficiency is improved.

2. According to the plant extract extraction system, the second groove is formed in the bottom of the annular cavity and corresponds to the first groove, the first plate is arranged on the second groove, when the annular cavity is observed to be excessively accumulated with plant residues inside the annular cavity, the extraction process is stopped, and the first plate is taken out through the second groove, so that the plant residues inside the annular cavity are effectively removed, the first groove is prevented from being blocked, and the impurity removal of plant extract flowing into the annular cavity is prevented.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is an enlarged view of a portion of FIG. 1 at C;

in the figure: stirring unit 1, extraction cylinder 11, first baffle 111, stirring zone 112, first hole 113, cover 12, solvent tank 13, spray pipe 14, automatic nozzle 141, base 15, feed inlet 16, discharge gate 17, third hole 171, drain pipe 172, closing plug 173, stirring rod 18, first shaft 19, impurity removing plate 191, stirring plate 192, drainage groove 193, impurity removing unit 2, second baffle 21, second hole 211, annular chamber 22, first groove 221, first annular groove 222, second groove 223, limiting groove 224, cleaning sheet 225, brush hair 226, first filter screen 23, second filter screen 24, impurity removing zone 25, standing zone 26 and first plate 27.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, the plant extract extraction system of the present invention comprises a stirring unit 1 and an impurity removing unit 2, wherein the stirring unit 1 comprises an extraction barrel 11, a barrel cover 12, a base 15, a feed inlet 16, a discharge outlet 17, a stirring rod 18, and a first shaft 19; the barrel cover 12 is installed at the top of the extraction barrel 11, the base 15 is installed at the bottom of the extraction barrel 11, a first baffle 111 is arranged on the inner surface of the side wall of the extraction barrel 11 close to the top, the upper surface of the first baffle 111 is in a downward bent arc shape, and the area between the first baffle 111 and the barrel cover 12 is a stirring area 112; a heater is arranged at the position of the side wall of the extraction cylinder 11 in the stirring area 112; a solvent tank 13 is arranged above the cylinder cover 12, the solvent tank 13 is filled with an extraction solvent, the solvent tank 13 is communicated with the interior of the extraction cylinder 11 through uniformly arranged spray pipes 14, and the end parts of the spray pipes 14 are inclined towards the direction close to the side wall of the extraction cylinder 11 and are provided with automatic spray heads 141; the first shaft 19 is installed in the middle of the inside of the extraction cylinder 11, the bottom of the first shaft 19 penetrates through the bottom of the extraction cylinder 11 and is connected with a motor installed on the outside, stirring rods 18 are uniformly arranged on the outer surface of the first shaft 19 in the stirring area 112, and the first shaft 19 penetrates through a first hole 113 formed in the middle of a first baffle 111; the feed inlet 16 is arranged on the barrel cover 12, and the discharge outlet 17 is arranged at the position of the side wall of the extraction barrel 11 close to the bottom; the impurity removal unit 2 is arranged below the first baffle 111 and is used for removing impurities from the plant extract;

the impurity removing unit 2 comprises a second baffle 21, an annular chamber 22, a first filter screen 23 and a second filter screen 24; a second baffle 21 is arranged at the position, below the first baffle 111, of the outer surface of the first shaft 19, an area between the first baffle 111 and the second baffle 21 is an impurity removing area 25, and an area between the second baffle 21 and the bottom of the extraction cylinder 11 is a standing area 26; an annular chamber 22 is arranged on the inner surface of the side wall of the extraction cylinder 11 and positioned in the impurity removing area 25, the bottom surface of the annular chamber 22 is inclined downwards and positioned below the second baffle 21, first grooves 221 are uniformly formed in the side wall of the annular chamber 22, close to the first shaft 19 and positioned below the second baffle 21, and a first filter screen 23 is arranged in each first groove 221; the upper surface of the second baffle 21 is in an arc shape which is bent downwards, and the end part of the second baffle 21 extends into the annular chamber 22 through a first annular groove 222 arranged on the side wall of the annular chamber 22; no. two holes 211 are evenly arranged at the position, close to the first shaft 19, on the second baffle 21, and a second filter screen 24 is arranged at the position, above the second holes 211, on the upper surface of the second baffle 21.

When the plant material extracting device works, after the plant material is poured into the extracting barrel 11 through the feeding hole 16, the plant material falls on the first baffle 111 of the stirring area 112, then the motor and the heater are started, the motor drives the first shaft 19 to rotate, and the first shaft 19 drives the stirring rod 18 to act on the plant material in the stirring area 112; after the motor is started for a period of time, the automatic spray nozzle 141 is started, so that the extraction solvent in the solvent tank 13 uniformly falls on the plant raw material through the spray pipe 14 and the automatic spray nozzle 141, and effective components contained in the plant raw material are separated out under the stirring and extruding action of the stirring rod 18 and dissolved in the extraction solvent to form plant extracting solution; the end part of the spray pipe 14 is inclined, so that the flowing-out extraction solvent uniformly and fully acts on the plant raw materials, and the condition that the sprayed-out extraction solvent directly flows out from the first hole 113 to influence the utilization efficiency of the extraction solvent is avoided; the heating action of the heater increases the solubility of the effective components, so that the effective components are further dissolved in the extraction solvent; the upper surface of the first baffle 111 is in an arc shape which is bent downwards, so that the plant extract flows into the first hole 113 along the upper surface of the first baffle 111 and falls on the upper surface of the second baffle 21 along the surface of the first shaft 19; the first shaft 19 can rotate in the first hole 113 to effectively clean plant residues attached to the first hole 113, so that the first hole 113 is smooth; the second baffle 21 drives the plant extracting solution accumulated on the second baffle 21 to rotate together with the first shaft 19 when rotating, so that the plant extracting solution in the impurity removing area 25 flows around the first shaft 19 in a rotating manner and is subjected to centrifugal force, and residues in the plant extracting solution deviate in a direction away from the first shaft 19 under the action of the centrifugal force; the plant extract near the first shaft 19 flows into the second hole 211 after being filtered by the second filter screen 24, and falls into the standing area 26 at the bottom of the extraction cylinder 11 through the second hole 211; because the residue content in the plant extract close to the first shaft 19 is less under the rotation action, the plant residue attached to the second filter screen 24 is less, and the plant extract is ensured to be less obstructed when passing through the second filter screen 24; the plant extract far away from the first shaft 19 has a higher content of plant residues, so that the plant extract far away from the first shaft 19 continuously deviates from the first shaft 19 and flows into the annular chamber 22 through the edge part of the second baffle plate 21 under the action of centrifugal force; then the plant extracting solution flows along the inclined bottom surface of the annular chamber 22 and flows into the standing zone 26 through the first groove 221, plant residues contained in the plant extracting solution are collected in the annular chamber 22 under the filtering action of the first filter screen 23 while the plant extracting solution passes through the first groove 221, and the purity of the plant extracting solution passing through the first groove 221 is guaranteed to be high; along with the accumulation of the plant residues, the accumulated plant residues can play a role in filtering, so that the plant extract is more fully purified when passing through the accumulated plant residues and the first filter screen 23; through the effect of the annular cavity 22, residues in the plant extracting solution are collected in the annular cavity 22, the plant residues in the plant extracting solution are prevented from being accumulated on the second filter screen 24 in a large amount, the pure plant extracting solution in the middle of the second baffle 21 can be ensured to flow out through the second hole 211 rapidly, and the extraction efficiency of the plant extracting solution is improved; when the plant extract falls into the standing zone 26 and then is subjected to standing treatment for a certain period of time, the residue remaining in the plant extract is sufficiently precipitated, and the supernatant in the plant extract is discharged through the discharge port 17, whereby a pure plant extract is obtained.

As a specific embodiment of the present invention, the annular chamber 22 is made of transparent glass, a second groove 223 is disposed at a position of the bottom of the annular chamber 22 corresponding to the first groove 221, and the second groove 223 is communicated with the outside; the first plate 27 is arranged on the second groove 223, and the first plate 27 is detachably connected; the interior of the annular chamber 22 is cleaned by the action of the second groove 223.

In operation, when the plant residues inside the annular chamber 22 are excessively accumulated, the first groove 221 may be blocked; when the accumulated plant residues are higher than the edge part of the second baffle plate 21, the flowing plant extracting solution impacts the plant residues, and the accumulated plant residues can be diffused and enter the plant extracting solution above the second baffle plate 21 again; therefore, when the plant residues in the annular chamber 22 are excessively accumulated through the annular chamber 22, the motor is turned off, the plant extract on the first baffle plate 111 is waited to stop gradually and enter a stable state, and the plant extract entering the annular chamber 22 fully seeps through the first filter screen 23, the first plate 27 is taken out through the second groove 223, and the plant residues are left on the first plate 27 near the first groove 221 when the plant extract seeps out of the first filter screen 23 in the first groove 221; therefore when taking out a number 27, the inside accumulational plant residue of annular chamber 22 leaves annular chamber 22 along with a number 27, stretches into annular chamber 22 through No. two grooves 223 with the brush afterwards and clears up for the plant residue in the annular chamber 22 is effectively clear away, avoids causing the jam to a groove 221, and hinders the edulcoration to the plant extract who flows into annular chamber 22 inside.

As a specific embodiment of the present invention, the first filter screen 23 is installed on the first plate 27, the upper bottom surface of the first groove 221 is provided with a limiting groove 224, and the top of the first filter screen 23 is embedded in the limiting groove 224; the first filter screen 23 is effectively cleaned by removing the first plate 27 to drive the first filter screen 23 out of the annular chamber 22.

When the device works, the first plate 27 is taken out, the first filter screen 23 is taken out, plant residues attached to the first filter screen 23 are cleaned while the first plate 27 is cleaned, and the phenomenon that plant extracting solution enters the standing area 26 through the first filter screen 23 due to the fact that the plant residues attached to the first filter screen 23 are too much is avoided, so that the extracting efficiency of the plant extracting solution is influenced; in addition, the limiting groove 224 at the top of the first filter screen 23 has a limiting effect on the first filter screen 23, and the first filter screen 23 is ensured to be kept in a stable state when the flowing plant extracting solution is filtered.

As an embodiment of the present invention, the upper surface of the first plate 27 is provided with a cleaning sheet 225, and the end of the cleaning sheet 225 extends into the annular chamber 22 and contacts with the top of the annular chamber 22; bristles 226 are uniformly arranged on the surface of the cleaning sheet 225 close to the top of the annular chamber 22, and the bristles 226 are positioned above the second baffle 21 and are in contact with the side wall of the annular chamber 22; the cleaning of the interior of the annular chamber 22 is made more thorough by the action of the cleaning blades 225 which carry the bristles 226.

When the cleaning device works, the bristles 226 on the cleaning sheet 225 are positioned above the second baffle 21, so when the plant extracting solution on the second baffle 21, which is close to the edge part, falls into the annular chamber 22 under the centrifugal action, the bristles 226 do not have the blocking effect on the inflowing plant extracting solution, and the plant extracting solution can smoothly flow into the annular chamber 22; when the first plate 27 is detached, the cleaning sheet 225 moves along with the first plate 27, and the bristles 226 on the cleaning sheet 225 clean the side wall of the annular chamber 22 in the process of moving along with the cleaning sheet 225, so that plant residues attached to the side wall of the annular chamber 22 are fully brought to the outer side of the annular chamber 22 under the action of the bristles 226, the plant residues in the annular chamber 22 are cleaned more thoroughly, and the problem that the extraction efficiency of plant extracting solution is influenced due to the blockage of the first groove 221 on the annular chamber 22 is further avoided.

As a specific embodiment of the present invention, the impurity removing plate 191 is uniformly arranged on the outer surface of the first shaft 19 near the first hole 113, and the end of the impurity removing plate 191 near the inner surface of the first hole 113 is in clearance fit with the inner surface of the first hole 113; the smoothness of the first hole 113 is ensured by the function of the impurity removing plate 191.

When the device works, the impurity removing plate 191 on the first shaft 19 rotates along with the first shaft 19 in the first hole 113, so that the plant raw materials in the stirring area 112 are prevented from blocking the first hole 113; and because the impurity removing plates 191 play a role of blocking in the first holes 113, only the plant extract and the small plant residues separated from the plant raw materials can flow into the impurity removing area 25 through the gap between the adjacent impurity removing plates 191, so that the phenomenon that the large plant residues enter the impurity removing area 25 through the first holes 113 and move into the annular chamber 22 under the centrifugal action of the first baffle 111 to cause the blockage of the annular chamber 22 is avoided.

As a specific embodiment of the invention, the top of the impurity removing plate 191 extends into the stirring zone 112, the bottom of the impurity removing plate 191 extends into the impurity removing zone 25, and the stirring plate 192 is arranged at the position of the side wall of the impurity removing plate 191 close to the bottom; through the effect of removing miscellaneous board 191, avoid the plant material to pile up in a hole 113 top region on the one hand, on the other hand has accelerated the rotation of plant extract in the edulcoration district 25 for the plant extract is got more thoroughly by the edulcoration.

During operation, because the upper surface of the first baffle 111 is arc-shaped, plant materials may be accumulated above the first hole 113, thereby preventing plant extract from entering the first hole 113; the part of the impurity removing plate 191 extending into the stirring area 112 can stir the plant raw materials close to the first hole 113 in the stirring area 112 while rotating along with the first shaft 19, so that the stirred plant raw materials are far away from the top of the first hole 113, and the smoothness of the first hole 113 is further ensured; the stirring plate of the impurity removing plate 191 positioned in the impurity removing area 25 rotates along with the first shaft 19, and meanwhile, the stirring effect on the plant extracting solution on the second baffle 21 can be started, so that the plant extracting solution rotates more violently; thereby ensuring that the plant residues contained in the plant extract can be sufficiently moved to the edge part of the second baffle 21 under the centrifugal action and enter the annular chamber 22 to be collected.

As a specific embodiment of the present invention, the surface of the second filter screen 24 is an arc shape which is bent upwards; through No. two filter screen 24 surface upswept for No. two filter screen 24 surfaces fully receive the impact of plant extract, thereby make No. two filter screen 24 surface adnexed plant residue by clearance more thoroughly.

When the device works, because the surface of the second filter screen 24 is in an arc shape which is bent upwards, when the plant extracting solution on the first baffle 111 rotates, the surface of the second filter screen 24 is fully impacted by the rotation of the plant extracting solution, so that plant residues attached to the second filter screen 24 are separated from the second filter screen 24 under the impact, and move to the annular chamber 22 under the centrifugal action to be collected; because No. two filter screens 24 are located No. one hole 113 below, when the plant extract that No. one hole 113 flows out falls No. two filter screens 24 top, some plant extract directly gets into No. two filter screens 24 and stews in the district 26, and another part plant extract flows along No. two filter screens 24's arc surface to wash away the plant residue that adheres to No. two filter screens 24, receive the hindrance when further avoiding the plant extract to pass through No. two filter screens 24.

As a specific embodiment of the present invention, the center of the second sieve 24 is offset from the center of the first shaft 19; through the eccentric arrangement of the second filter screen 24, the plant residues attached to the second filter screen 24 are removed more thoroughly.

During operation, because No. two filter screens 24 are for axle 19 eccentric settings, consequently when No. two filter screens 24 rotate along with axle 19, the near vegetation extract of No. two filter screens 24 vibrates under No. two filter screens 24's eccentric rotation for the attached vegetation residue of No. two filter screens 24 breaks away from No. two filter screens 24 and mixes in the pivoted vegetation extract under the vibration effect, and finally is collected by annular cavity 22, make the vegetation residue in the vegetation extract clear away more thoroughly, further the purity of the vegetation extract that finally obtains.

As a specific embodiment of the invention, the surface of the impurity removing plate 191 is uniformly provided with drainage grooves 193, and the end parts of the drainage grooves 193 are directed to the upper surface of the No. two filter screens 24; the plant extract flowing down from the first holes 113 is guided by the drainage grooves 193 to impact the upper surface of the second screen 24, so that the upper surface of the second screen 24 is removed more completely.

When the device works, when the plant extracting solution enters the impurity removing area 25 along the surface of the impurity removing plate 191, a part of the plant extracting solution is converged under the guiding action of the drainage grooves 193 to form water flow to fall, the end parts of the drainage grooves 193 point to the surface of the second filter screen 24, so that the falling water flow intensively impacts the surface of the second filter screen 24, the second filter screen 24 is vibrated violently, and plant residues on the second filter screen 24 are cleaned more thoroughly; and when water flow formed by the plant extracting solution impacts the surface of the second filter screen 24, the speed of the plant extracting solution passing through the second filter screen 24 is increased, and the impurity removal efficiency of the plant extracting solution is further improved.

As a specific embodiment of the present invention, the discharge port 17 includes a third hole 171 and a liquid outlet pipe 172, and the third hole 171 is uniformly disposed on the side wall of the extraction cylinder 11 in the standing zone 26; the liquid outlet pipe 172 is installed on the third hole 171, and the third hole 171 without the liquid outlet pipe 172 is kept in a closed state by providing a closing plug 173.

During operation, because plant extract is after a period of time that stews in the district 26 of stewing, the residue that remains in the plant extract fully subsides to extraction section of thick bamboo 11 bottom, the operator can select the No. three hole 171 of corresponding height to install drain pipe 172 according to the height of plant extract this moment to the higher part of purity that is close to the top in the discharge plant extract, obtain the better plant extract of quality.

When the plant material extracting device works, after plant materials are poured into the extracting barrel 11 through the feeding hole 16, the plant materials fall on the first baffle 111 of the stirring area 112, then the motor and the heater are started, the motor drives the first shaft 19 to rotate, and the first shaft 19 drives the stirring rod 18 to act on the plant materials in the stirring area 112; after the motor is started for a period of time, the automatic spray nozzle 141 is started, so that the extraction solvent in the solvent tank 13 uniformly falls on the plant raw material through the spray pipe 14 and the automatic spray nozzle 141, and effective components contained in the plant raw material are separated out under the stirring and extruding action of the stirring rod 18 and dissolved in the extraction solvent to form plant extracting solution; the end part of the spray pipe 14 is inclined, so that the flowing-out extraction solvent uniformly and fully acts on the plant raw materials, and the condition that the sprayed-out extraction solvent directly flows out from the first hole 113 to influence the utilization efficiency of the extraction solvent is avoided; the heating action of the heater increases the solubility of the effective components, so that the effective components are further dissolved in the extraction solvent; the upper surface of the first baffle 111 is in an arc shape which is bent downwards, so that the plant extract flows into the first hole 113 along the upper surface of the first baffle 111 and falls on the upper surface of the second baffle 21 along the surface of the first shaft 19; the first shaft 19 can rotate in the first hole 113 to effectively clean plant residues attached to the first hole 113, so that the first hole 113 is smooth; when the second baffle 21 rotates along with the first shaft 19, the plant extracting solution accumulated on the second baffle 21 is driven to rotate together, so that the plant extracting solution in the impurity removing area 25 flows around the first shaft 19 in a rotating mode and is under the action of centrifugal force, and residues in the plant extracting solution deviate in the direction away from the first shaft 19 under the action of the centrifugal force; the plant extracting solution close to the first shaft 19 flows into the second hole 211 after being filtered by the second filter screen 24 and falls into the standing area 26 at the bottom of the extracting cylinder 11 through the second hole 211; because the residue content in the plant extract close to the first shaft 19 is less under the rotation action, the plant residue attached to the second filter screen 24 is less, and the plant extract is ensured to be less obstructed when passing through the second filter screen 24; the plant extract far away from the first shaft 19 has a higher content of plant residues, so that the plant extract far away from the first shaft 19 continuously deviates from the first shaft 19 and flows into the annular chamber 22 through the edge part of the second baffle plate 21 under the action of centrifugal force; then the plant extracting solution flows along the inclined bottom surface of the annular chamber 22 and flows into the standing zone 26 through the first groove 221, plant residues contained in the plant extracting solution are collected in the annular chamber 22 under the filtering action of the first filter screen 23 while the plant extracting solution passes through the first groove 221, and the purity of the plant extracting solution passing through the first groove 221 is guaranteed to be high; along with the accumulation of the plant residues, the accumulated plant residues can play a role in filtering, so that the plant extract is more fully purified when passing through the accumulated plant residues and the first filter screen 23; through the effect of the annular cavity 22, residues in the plant extracting solution are collected in the annular cavity 22, the plant residues in the plant extracting solution are prevented from being accumulated on the second filter screen 24 in a large amount, the pure plant extracting solution in the middle of the second baffle 21 can be ensured to flow out through the second hole 211 rapidly, and the extraction efficiency of the plant extracting solution is improved; when the plant extract falls into the standing zone 26 and then is subjected to standing treatment for a period of time, after residues remained in the plant extract are fully precipitated, the supernatant in the plant extract is discharged through the discharge hole 17, and then pure plant extract is obtained; as the accumulation of excess plant debris inside the annular chamber 22 may cause the blockage of the first slot 221; when the accumulated plant residues are higher than the edge part of the second baffle plate 21, the flowing plant extracting solution impacts the plant residues, and the accumulated plant residues can be diffused and enter the plant extracting solution above the second baffle plate 21 again; therefore, when the plant residues in the annular chamber 22 are excessively accumulated through the annular chamber 22, the motor is turned off, the plant extracting solution on the first baffle plate 111 is waited to stop gradually and enter a stable state, and the plant extracting solution entering the annular chamber 22 fully seeps through the first filter screen 23, the first plate 27 is taken out through the second groove 223, and the plant residues are left on the first plate 27 near the first groove 221 when the plant extracting solution seeps out of the first filter screen 23 in the first groove 221; therefore, when the first plate 27 is taken out, the plant residues accumulated in the annular chamber 22 leave the annular chamber 22 along with the first plate 27, and then the brush extends into the annular chamber 22 through the second groove 223 to be cleaned, so that the plant residues in the annular chamber 22 are effectively cleaned, the first groove 221 is prevented from being blocked, and the plant extracting solution flowing into the annular chamber 22 is prevented from being purified; the first filter screen 23 is taken out while the first plate 27 is taken out, plant residues attached to the first filter screen 23 are cleaned while the first plate 27 is cleaned, and the problem that plant extract enters the standing area 26 through the first filter screen 23 due to the fact that the plant residues attached to the first filter screen 23 are too much is avoided, and therefore the extraction efficiency of the plant extract is influenced; when the first plate 27 is removed, the cleaning sheet 225 moves along with the first plate 27, and the bristles 226 on the cleaning sheet 225 clean the side wall of the annular chamber 22 in the process of moving along with the cleaning sheet 225, so that plant residues attached to the side wall of the annular chamber 22 are sufficiently brought to the outer side of the annular chamber 22 under the action of the bristles 226, and the plant residues in the annular chamber 22 are cleaned more completely; because the upper surface of the first baffle 111 is arc-shaped, plant raw materials can be accumulated above the first hole 113, so that plant extracting solution is prevented from entering the first hole 113; the part of the impurity removing plate 191 extending into the stirring area 112 rotates along with the first shaft 19, and meanwhile, the stirring effect can be achieved on the plant raw materials close to the first hole 113 in the stirring area 112, so that the stirred plant raw materials are far away from the top of the first hole 113, and the smoothness of the first hole 113 is further guaranteed; the stirring plate of the impurity removing plate 191 positioned in the impurity removing area 25 rotates along with the first shaft 19, and meanwhile, the stirring effect on the plant extracting solution on the second baffle 21 can be started, so that the plant extracting solution rotates more violently; thereby ensuring that plant residues contained in the plant extracting solution fully move to the edge part of the second baffle 21 under the centrifugal action and enter the annular chamber 22 to be collected; because the second filter screen 24 is arranged eccentrically relative to the first shaft 19, when the second filter screen 24 rotates along with the first shaft 19, the plant extracting solution near the second filter screen 24 is vibrated under the eccentric rotation of the second filter screen 24, so that plant residues attached to the second filter screen 24 are separated from the second filter screen 24 and mixed with the rotating plant extracting solution under the vibration effect, and are finally collected by the annular chamber 22, so that the plant residues in the plant extracting solution are removed more completely, and further the purity of the plant extracting solution is finally obtained.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A plant extract extraction system which characterized in that: the device comprises a stirring unit (1) and an impurity removing unit (2), wherein the stirring unit (1) comprises an extraction cylinder (11), a cylinder cover (12), an extraction solvent tank (13), a spray pipe (14), a base (15), a feeding hole (16), a discharging hole (17), a stirring rod (18) and a first shaft (19); the barrel cover (12) is installed at the top of the extraction barrel (11), the base (15) is installed at the bottom of the extraction barrel (11), a first baffle (111) is arranged on the inner surface of the side wall of the extraction barrel (11) close to the top, the upper surface of the first baffle (111) is in an arc shape which is bent downwards, and the area between the first baffle (111) and the barrel cover (12) is a stirring area (112); a heater is arranged at the position of the side wall of the extraction cylinder (11) in the stirring area (112); an extraction solvent tank (13) is arranged above the barrel cover (12), an extraction solvent is filled in the extraction solvent tank (13), the extraction solvent tank (13) is communicated with the interior of the extraction barrel (11) through uniformly arranged spray pipes (14), and the end part of each spray pipe (14) inclines towards the direction close to the side wall of the extraction barrel (11) and is provided with an automatic spray head (141); the first shaft (19) is arranged in the middle of the inner part of the extraction cylinder (11), the bottom of the first shaft (19) penetrates through the bottom of the extraction cylinder (11) and is connected with a motor arranged on the outer side, stirring rods (18) are uniformly arranged on the outer surface of the first shaft (19) in a stirring area (112), and the first shaft (19) penetrates through a first hole (113) formed in the middle of a first baffle plate (111); the feed inlet (16) is arranged on the barrel cover (12), and the discharge outlet (17) is arranged at the position, close to the bottom, of the side wall of the extraction barrel (11); the impurity removal unit (2) is arranged below the first baffle (111) and is used for removing impurities from the plant extracting solution;

the impurity removal unit (2) comprises a second baffle (21), an annular chamber (22), a first filter screen (23) and a second filter screen (24); a second baffle (21) is arranged at the position, below the first baffle (111), of the outer surface of the first shaft (19), an area between the first baffle (111) and the second baffle (21) is an impurity removing area (25), and an area between the second baffle (21) and the bottom of the extraction cylinder (11) is a standing area (26); an annular chamber (22) is arranged on the inner surface of the side wall of the extraction cylinder (11) and is positioned in the impurity removal area (25), the bottom surface of the annular chamber (22) is inclined downwards and is positioned below the second baffle (21), first grooves (221) are uniformly formed in the side wall of the annular chamber (22), which is close to the first shaft (19) and is positioned below the second baffle (21), and a first filter screen (23) is arranged in each first groove (221); the upper surface of the second baffle (21) is in an arc shape which is bent downwards, and the end part of the second baffle (21) extends into the annular chamber (22) through a first annular groove (222) arranged on the side wall of the annular chamber (22); no. two positions that are close to axle (19) on baffle (21) evenly are equipped with No. two holes (211), the position that No. two baffle (21) upper surface is located No. two holes (211) top is equipped with No. two filter screens (24).

2. The plant extract extraction system of claim 1, wherein: the annular chamber (22) is made of transparent glass, a second groove (223) is formed in the position, corresponding to the first groove (221), of the bottom of the annular chamber (22), and the second groove (223) is communicated with the outside; the first plate (27) is arranged on the second groove (223), and the first plate (27) is detachably connected; the inside of the annular chamber (22) is cleaned through the action of the second groove (223).

3. The plant extract extraction system of claim 2, wherein: the first filter screen (23) is arranged on the first plate (27), a limiting groove (224) is formed in the upper bottom surface of the first groove (221), and the top of the first filter screen (23) is embedded into the limiting groove (224); the first filter screen (23) is effectively cleaned by removing the first plate (27) to drive the first filter screen (23) to be separated from the annular chamber (22).

4. A plant extract extraction system according to claim 3, wherein: the upper surface of the first plate (27) is provided with a cleaning sheet (225), and the end part of the cleaning sheet (225) extends into the annular chamber (22) and is in contact with the top of the annular chamber (22); the surface of the cleaning sheet (225) is uniformly provided with bristles (226) at the part close to the top of the annular chamber (22), and the bristles (226) are positioned above the second baffle plate (21) and are in contact with the side wall of the annular chamber (22); the cleaning of the interior of the annular chamber (22) is more thorough by the action of the cleaning sheet (225) which drives the bristles (226).

5. The plant extract extraction system of claim 4, wherein: the impurity removing plate (191) is uniformly arranged on the part, close to the first hole (113), of the outer surface of the first shaft (19), and the end part, close to the inner surface of the first hole (113), of the impurity removing plate (191) is in clearance fit with the inner surface of the first hole (113); the smoothness of the first hole (113) is ensured through the function of the impurity removing plate (191).

6. The plant extract extraction system of claim 5, wherein: the top of the impurity removing plate (191) extends into the stirring area (112), the bottom of the impurity removing plate (191) extends into the impurity removing area (25), and a stirring plate (192) is arranged at the position, close to the bottom, of the side wall of the impurity removing plate (191); through the effect that removes miscellaneous board (191), avoid plant material to pile up in a hole (113) top region on the one hand, on the other hand has accelerated the rotation of plant extract in edulcoration district (25) for plant extract is got more thoroughly by the edulcoration.

7. The plant extract extraction system of claim 6, wherein: no. two filter screen (24) surfaces are the arc of kickup, through No. two filter screen (24) surface kickup for No. two filter screen (24) surfaces fully receive the impact of plant extract, thereby make No. two filter screen (24) surface adnexed plant residue clear up more thoroughly.

8. The plant extract extraction system of claim 7, wherein: the center of the second filter screen (24) is deviated from the center of the first shaft (19); through the eccentric arrangement of the second filter screen (24), plant residues attached to the second filter screen (24) are removed more thoroughly.

9. The plant extract extraction system of claim 8, wherein: drainage grooves (193) are uniformly formed in the surface of the impurity removing plate (191), and the end parts of the drainage grooves (193) point to the upper surface of the second filter screen (24); the plant extracting solution flowing downwards from the first hole (113) is guided by the drainage groove (193) to impact the upper surface of the second filter screen (24), so that the upper surface of the second filter screen (24) is removed more completely.

10. The plant extract extraction system of claim 9, wherein: the discharge hole (17) comprises a third hole (171) and a liquid outlet pipe (172), and the third hole (171) is uniformly formed in the side wall of the extraction cylinder (11) in the standing area (26); the liquid outlet pipe (172) is arranged on the first hole (113), and the first hole (113) without the liquid outlet pipe (172) is kept in a closed state by arranging a closing plug (173).