CN203096024U - Grease extractor - Google Patents
Grease extractor Download PDFInfo
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- CN203096024U CN203096024U CN 201320061313 CN201320061313U CN203096024U CN 203096024 U CN203096024 U CN 203096024U CN 201320061313 CN201320061313 CN 201320061313 CN 201320061313 U CN201320061313 U CN 201320061313U CN 203096024 U CN203096024 U CN 203096024U
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Abstract
The utility model relates to a grease extractor which comprises a shell provided with a preform inlet, a solvent inlet, a mixed oil inlet and a wet meal outlet, a material conveying device and a spraying system. The material conveying device comprises a drive motor, first and second chain wheels with parallel axial leads, a circular conveying chain for transmission connection of the first and second chain wheels and a plurality of pushing frames arranged on the circular conveying chain and distributed along the extending direction. The circular conveying chain is provided with an upper conveying section and a lower conveying section parallel to each other. The conveying device further comprises an upper grid tray located below the upper conveying section in the shell and a lower grid tray located below the lower conveying section in the shell. Accommodating spaces for accommodating materials are respectively formed between the upper grid tray and the pushing frame on the upper conveying section and between the lower grid tray and the pushing frame on the lower conveying section. According to the grease extractor provided by the utility model, when the circular conveying chain transmits, the pushing frames and the circular conveying chain move synchronously, so that the mechanical failure rate is reduced, and meanwhile, the extraction efficiency is improved.
Description
Technical field
The utility model relates to a kind of grease leacher.
Background technology
Leach in the industry at grease, the mode that oil plant leaches can be divided into intermittent type leaching method and continous way leaching method, and leacher then is divided into four big classes according to the difference of leaching method:
One class is the intermittent type batch extractor, it mainly is that the oil plant that enters is soaked with fresh solvent, and by for some time, a part of oil changes over to and formed mixing oil in the solvent, material after the leaching soaks with fresh solvent again, till repeating to nearly all grease so always and being extracted out.Shortcoming is: for a long time, repeatedly use fresh solvent to leach, the miscella concentration of gained is rarer, and the mixing oil mass is too big, and this is very unfavorable to industrial production.China adopts this type of leacher more in the seventies in 20th century, is the major equipment that domestic early stage grease leaches, and has slowly eliminated now, perhaps only uses in some special oils leach.
Two classes are to leach oil plant to be immersed in the leacher that carries out work in the countercurrent movement solvent, and when leaching with infusion method, greasy extraction no stage in absolute counter-current condition carries out, and shortcoming is: it is longer to leach route; The concentration of the mixing oil that obtains at last lower (15%～20%); The oil plant structure is damaged when material moves, and it is muddy that mixing oil is taken place; Dregs of rice end contained in the mixing oil is more, has increased filtering difficulty; The height of contour of equipment is bigger; When the density of oil plant was lower than concentrated blend density, the dregs of rice powder that leaches oil plant was easy to float, and takes away with mixing oil.It is fewer that such leacher is applied to the situation of suitability for industrialized production.
Three classes are the leachers that adopt the multistage countercurrent spray to carry out work, and grease leaches in the condition of relative adverse current, has only flow of solvent here, and quiet being placed on of material leached in the lattice.Shortcoming is: the utilization coefficient of leacher geometric volume lower (＜45%); Leaching effect is subjected to easily that oil plant is pretreated to be influenced, and also is subjected to the influence of raw material mix; Leaching effect is totally not good enough, and the residual oil content of the dregs of rice is higher.Our company uses maximum flat-turn leachers just to belong to the leacher of this type before this, and flat-turn leacher also is the maximum leacher of present oils industry use, but there is above-mentioned shortcoming in this leacher always, and oils industry constantly improves over nearly 20 years, and effect is also not obvious.
Four classes are the leachers by blending means work, and the oil plant that the fs enters soaks with concentrated blend and leaches, and in subordinate phase, adopt the method for mixing oil and fresh solvent multistage countercurrent spray that oil plant is leached at last.Mix and leach the advantage that has infusion method and multistage spraying process concurrently.Shortcoming is: different equipment has been adopted in two stage leaching respectively, makes that to leach route longer, and the equipment complexity takies local greatly, and operation and management are also complicated.
The early stage industrialization degree of oil prodution industry is not high, single jar of leaching and pot group type leach and are intermittent type, the multiple tank combination becomes continuously, along with development in science and technology, the continous way leaching plant has appearred, but industrial scale is compared now less, as spiral leacher, mobile basket bucket type leacher, chain type leacher etc.Track type leacher, flat rotary extractor have appearred again then, loop type extractor, crawler belt frame leacher and developed drag chain type leacher, case chain type leacher etc. on loop type extractor and track type leacher basis again.The above leacher of present domestic 1000t/d mainly is: flat-turn leacher, loop type extractor, drag chain type leacher, case chain type leacher.
The leacher that uses mainly is the leacher that adopts the multistage countercurrent spray to carry out work now, and flat-turn leacher, loop type extractor, drag chain type leacher, case chain type leacher etc. are arranged.
The shortcoming of flat-turn leacher is: leaching effect is subjected to easily that oil plant is pretreated to be influenced, and also is subjected to the influence of raw material mix; Leaching effect is totally not good enough, and the residual oil content of the dregs of rice is higher.
The shortcoming of loop type extractor is: the spray mode of loop type extractor, what take is continous way spray, leaches number of times and reaches more than 9 times, is lower than the efficient of flat-turn leacher, because of twice miscella concentration up and down ooze mutually mix serious, so it is more to spray number of times.
The shortcoming of drag chain type leacher is: oil phase oozes mutually and mixes seriously in the mixing oil that faces mixing oil spray or twice leaching in front and back mutually and the material base, cause the miscella concentration gradient to reduce, promptly reduce the mass transfer power that leaches, leach number of times up to more than 13 times, leaching efficiency is low.
The shortcoming of case chain type leacher is: case chain type leacher is to improve on the basis of drag chain type leacher, oil plant is dragged in the drag chain case, oil plant in each case is isolated mutually, the mixing oil amount of interpenetrating of twice leaching in front and back is less, improved leaching efficiency, but also had following shortcoming: pusher case easy deformation, transmission rig failure rate height, the drain time of oil plant in leacher is short, and leaching effect has fluctuation etc. when handling different oil plant.Pusher case easy deformation, because of its pusher case is a rectangular configuration, wherein one side is the pusher thrust surface, the limit vacancy relative, and in addition two limits are sides, pusher case discontinuity everywhere in the pusher process like this with this thrust surface, easy deformation is damaged, thereby causes mechanical fault.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of improved leaching efficiency height, grease leacher that failure rate of machinery is low are provided.
For solving the problems of the technologies described above, the utility model is taked following technical scheme:
A kind of grease leacher, it comprises having the material base import, solvent inlet, the housing of the mixing oil outlet and the dregs of rice outlet of wetting, be located at intravital feeding device of shell and sprinkling system, feeding device comprises drive-motor, lay respectively at housing and drive first sprocket wheel and second sprocket wheel that can rotate around self axis by drive-motor relative to both sides, be used for the ring-shaped conveying chain that first sprocket wheel and second sprocket wheel are in transmission connection mutually and be arranged on material-pulling device on the ring-shaped conveying chain, first sprocket wheel, the axis parallel of second sprocket wheel, particularly, material-pulling device comprises a plurality of pusher frames that distribute along the bearing of trend of ring-shaped conveying chain, described ring-shaped conveying chain has last transportation section and the following transportation section that is parallel to each other, feeding device also comprises the top grating that is arranged in the housing and is positioned at the below, transportation section, be arranged in the housing and be positioned at the lower grid plate of below, transportation section down, between the pusher frame on top grating and the last transportation section, be formed with the spatial accommodation that can hold material respectively between the pusher frame on lower grid plate and the following transportation section.
According to concrete enforcement and preferred aspect of the utility model, the material base import is positioned at a side of housing and is positioned at the top of top grating, wet dregs of rice outlet and material base import homonymy setting and be positioned at the below of lower grid plate, solvent inlet is arranged on down the top of the pusher frame on the transportation section, and itself and wet dregs of rice outlet spacing in the horizontal direction is 1/10th to 1/2nd of a lower grid plate length, wherein solvent inlet and the wet dregs of rice export spacing in the horizontal direction be lower grid plate length 2/5ths for most preferably.
Preferably, top grating and lower grid plate all are tabular, but and are distributed with the grid hole that a plurality of feed flow attitude materials pass through on it.
According to another concrete enforcement and preferred aspect of the utility model, the grease leacher comprises that also being connected the top grating bottom can be used for accepting the bucket that oils from the leakage of oil of top grating place, is connected the lower grid plate bottom and can be used for accepting following oil bucket from the leakage of oil of lower grid plate place, prevent miscella concentration ooze mutually mix serious.Simultaneously, the mixing oil outlet is arranged on the bucket that oils, leacher comprises that also the mixing oil circulation that is used in the bucket that oils, the following oil bucket is delivered to the mixing oil recycle system of sprinkling system to spray.
Preferably, the mixing oil recycle system comprises recycle pump and is used for the bucket that oils, the following oily used oil pipe that struggles against and be communicated with the inlet of sprinkling system.
Preferably, oil bucket and oily down bucket all have the oil groove of coming round in a plurality of tops, can be to adjacent oil groove overflow after one of them oil groove oil has been expired.
Preferably, each pusher frame is the H type by two cross sections framework constitutes.
Further, preferably, first sprocket wheel and second sprocket wheel have two respectively, these two first sprocket wheels and second sprocket wheel are in transmission connection by two described ring-shaped conveying chains that are parallel to each other respectively, the both sides of pusher frame are connected with two ring-shaped conveying chains respectively, and wherein the pusher frame can be dismantled is arranged between two ring-shaped conveying chains to most preferably.
More preferably, drive-motor has two, and two drive-motor drive first sprocket wheel respectively and second sprocket wheel rotates synchronously.
Because the enforcement of above technical scheme, the utility model compared with prior art has following advantage:
The utility model is provided with respectively below transportation section on the ring-shaped conveying chain and following transportation section and is fixed on intravital top grating of shell and lower grid plate, again by a plurality of pusher frames that distribute along the bearing of trend of ring-shaped conveying chain, and be formed with the spatial accommodation that can hold material respectively between the pusher frame between the pusher frame on top grating and the last transportation section, on lower grid plate and the following transportation section, when the ring-shaped conveying chain transmission, a plurality of pusher frames and the same moved further of ring-shaped conveying chain, reduce failure rate of machinery, improve leaching efficiency simultaneously.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing and specific embodiment.
Fig. 1 looks synoptic diagram for the master according to leacher of the present utility model;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is the structural representation according to the pusher frame of leacher of the present utility model;
Fig. 4 is the structural representation of the framework of a H type among Fig. 3;
Wherein: 1, housing; 10, material base import; 11, solvent inlet; 12, mixing oil outlet; 13, wet dregs of rice outlet; 2, first sprocket wheel; 3, second sprocket wheel; 4, ring-shaped conveying chain; 40, go up the transportation section; 41, following transportation section; 5, pusher frame; 6, top grating; 7, lower grid plate; 8, the bucket that oils; 9, oil struggles against down; 14, sprinkling system; 15, oil groove.
Embodiment
To shown in Figure 2, according to the grease leacher of this enforcement, it comprises housing 1 as Fig. 1; Be located at feeding device and sprinkling system 14 in the described housing 1; Bucket 8 oils; Following oil bucket 9; The mixing oil recycle system.Have material base import 10, solvent inlet 11, mixing oil outlet 12 and wet dregs of rice outlet 13 on its middle shell 1.Feeding device comprises drive-motor, lay respectively at housing 1 and drive first sprocket wheel 2 and second sprocket wheel 3 that can rotate around self axis by drive-motor relative to both sides, be used for the ring-shaped conveying chain 4 that first sprocket wheel 2 and second sprocket wheel 3 are in transmission connection mutually and be arranged on material-pulling device on the ring-shaped conveying chain 4, first sprocket wheel 2, the axis parallel of second sprocket wheel 3, in this example, first sprocket wheel 2 and second sprocket wheel 3 and drive-motor all are to have two, wherein two first sprocket wheels 2 and second sprocket wheel 3 are in transmission connection by two described ring-shaped conveying chains 4 that are parallel to each other respectively, and two drive-motor drive first sprocket wheel 2 respectively, second sprocket wheel 3 rotates synchronously.Simultaneously, ring-shaped conveying chain 4 has last transportation section 40 and the following transportation section 41 that is parallel to each other.Material-pulling device comprises a plurality of pusher frames 5 that distribute along the bearing of trend of ring-shaped conveying chain 4, feeding device also comprises the top grating 6 that is arranged in the housing 1 and is positioned at 40 belows, transportation section, be arranged on housing 1 and be positioned at the lower grid plate 7 of time 41 belows, transportation section, is formed with the spatial accommodation that can hold material respectively between the pusher frame 5 between the pusher frame 5 on top grating 6 and the last transportation section 40, on lower grid plate 7 and the following transportation section 41.
First sprocket wheel 2, second sprocket wheel 3 are rotated counterclockwise synchronously in this example, and material base import 10 is positioned at a side (right side) of housing 1 and is positioned at the top of top grating 6, and material base directly enters in the spatial accommodation of 6 pusher frames 5 of top grating.Wet dregs of rice outlet 13 and material base import 10 homonymy settings and be positioned at the below of lower grid plate 7, when the pusher frame broke away from lower grid plate, the wet dregs of rice were discharged from wet dregs of rice outlet 13.Solvent inlet 11 is arranged on down the top of the pusher frame 5 on the transportation section 41, and itself and wet dregs of rice outlet 13 spacing in the horizontal direction are 1/10th to 1/2nd of lower grid plate 7 length, and solvent inlet 11 is 2/5ths of lower grid plate 7 length with wet dregs of rice outlet 13 spacing in the horizontal direction in this example.
Top grating 6 and lower grid plate 7 in this example all are tabular, but and are distributed with the grid hole that a plurality of feed flow attitude materials pass through on it.The bucket 8 that oils all has the oil groove 15 of coming round at a plurality of tops with following oil bucket 9, can be to 15 overflows of adjacent oil groove after one of them oil groove 15 oil has been expired.The used oil pipe that the mixing oil recycle system comprises recycle pump and is used for the bucket that oils, following oil bucket are communicated with the inlet of sprinkling system 14, the mixing oil recycle system and sprinkling system equal 14 adopts this areas those forms commonly used, do not do detailed description at this.
In addition, each pusher frame 5 is to be made of the framework that two cross sections are the H type in this example, specifically referring to Fig. 3 and shown in Figure 4.The framework of H type, stressed even, rational in infrastructure, be not easy distortion during operation, reduce failure rate.
The implementation process of present embodiment is as follows: material base is after the processing of pre-treatment workshop, send the leaching workshop here by handling equipment, enter this machine from the import of leacher material base, drop to equably in the spatial accommodation of pusher frame and top grating formation, each pusher frame all is relatively independent leaching unit, several pusher frames are combined into material-pulling device, drive material base move from right to left on the leacher upper strata (seeing shown in the leacher figure), the shower of mixing oil circulation simultaneously and sprinkling system is material base spray mixing oil in the pusher frame, in the pusher frame, form and soak, mixing oil is through big flow circulation immersion in the pusher frame, fall into the bucket that oils, and realize circulated sprinkling by circulating oil pump.When material base arrives the left part on the upper strata, top grating interrupts, material base drops to down from the pusher frame in the spatial accommodation of one deck lower grid plate and the formation of pusher frame, by two parallel annular conveyor chains moving to the pusher frame, length direction along lower grid plate moves right, it is the same to catch up with layer, in the moving process, the shower of mixing oil circulation and sprinkling system is material base spray mixing oil in the pusher frame, when moving to the solvent inlet position, no longer includes the mixing oil circulated sprinkling, make into by solvent pump input fresh solvent, fresh solvent washes away material base, and material base is through the immersion of mixing oil at this moment, spray (concentration of the mixing oil of spray is by dense thinning), the grease in the material base is come out by lixiviate gradually, produce the material slag, be commonly called as the wet dregs of rice, pass through the flushing of fresh solvent then, can farthest reduce the oleaginousness in the wet dregs of rice.After having passed through the solvent inlet place, the wet dregs of rice just drain, in the hope of solvent contained in the dregs of rice that will wet farthest drop go out, reduce the quantity of solvent that contains in the wet dregs of rice, after the pusher frame breaks away from lower grid plate, the wet dregs of rice that drain fall, discharge from the wet dregs of rice outlet of leacher, remove solvent by conveyor delivery to wet dregs of rice desolventizing machine then, form the raw material (dregs of rice) of producing feed, remove the solvent that comes and then recycle, enter from the solvent inlet of leacher.After solvent enters leacher, lixiviate the grease in the material base, become mixing oil, miscella concentration is thickened by rare, exports out from mixing oil at last, enters vapo(u)rization system evaporation and removes solvent in the oil.
The leacher of present embodiment has the common advantage of drag chain type leacher and case chain type leacher: the bed of material of material base is low, makes the solvent good penetrability, shortens extraction time; Material base has a tipping effect from the upper strata to the lower floor, make the bed of material loosening, and material base is reintegrated, and can obtain better leaching effect etc.These characteristics have overcome the shortcoming of flat-turn leacher.Each pusher frame all forms and independently leaches the unit simultaneously, effectively prevents the crossfire of mixing oils at different levels in material base, can guarantee the concentration gradient between each section spray, has overcome this main drawback of loop type extractor and drag chain leacher.
In addition, the leacher of present embodiment has also overcome the shortcoming of drag chain type leacher and case chain type leacher, therefore belongs to a kind of leacher efficiently.
Particular embodiment is as follows:
(1), the pusher frame that constitutes of framework that to adopt two cross sections be the H type, it is stressed evenly, and is rational in infrastructure, is not easy distortion during operation, reduces failure rate of machinery.
(2), adopt two drives structure, the two ends of leacher all are drive ends, two drive ends interlock synchronous operation improves leaching efficiency.
(3), soak-spray-drain the mixing oil circulation and the sprinkling system of alternate intervals, when carrying out the big spray of big cycle volume in each leaching stage, earlier material base is sprayed immersion, on material base, form the liquid level layer, material base inside can both be permeated by solvent everywhere, then material base is sprayed and wash away, after draining at last, enter the next link that leaches.Such structure, can be farthest near desirable leaching effect, promptly in each leaching stage, the grease lixiviate can both reach the running balance of mass transfer, each leaching stage can both drain after finishing better in addition.
More than the utility model has been done detailed description; its purpose is to allow the personage that is familiar with this art can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; and the utility model is not limited to the above embodiments; all equivalences of doing according to spirit of the present utility model change or modify, and all should be encompassed in protection domain of the present utility model
Claims (9)
1. grease leacher, it comprises having material base import (10), solvent inlet (11), the housing (1) of mixing oil outlet (12) and wet dregs of rice outlets (13), be located at feeding device and sprinkling system in the described housing (1), described feeding device comprises drive-motor, lay respectively at described housing (1) and drive first sprocket wheel (2) and second sprocket wheel (3) that can rotate around self axis by described drive-motor relative to both sides, be used for the ring-shaped conveying chain (4) that described first sprocket wheel (2) and described second sprocket wheel (3) are in transmission connection mutually and be arranged on material-pulling device on the ring-shaped conveying chain (4), described first sprocket wheel (2), the axis parallel of second sprocket wheel (3), it is characterized in that: described material-pulling device comprises a plurality of pusher frames (5) that distribute along the bearing of trend of described ring-shaped conveying chain (4), described ring-shaped conveying chain (4) has last transportation section (40) and the following transportation section (41) that is parallel to each other, described feeding device also comprises the top grating (6) that is arranged in the described housing (1) and is positioned at below, described upward transportation section (40), be arranged in the described housing (1) and be positioned at the lower grid plate (7) of below, described transportation section (41) down, described top grating (6) with described between the pusher frame (5) on the transportation section (40), be formed with the spatial accommodation that can hold material respectively between the pusher frame (5) on described lower grid plate (7) and the described transportation section (41) down.
2. grease leacher according to claim 1, it is characterized in that: described material base import (10) is positioned at a side of described housing (1) and is positioned at the top of described top grating (6), described wet dregs of rice outlets (13) and described material base import (10) homonymy setting and be positioned at the below of described lower grid plate (7), described solvent inlet (11) is arranged on the top of the pusher frame (5) on the described down transportation section (41), and its to export (13) spacing in the horizontal direction with the described wet dregs of rice be 1/10th to 1/2nd of described lower grid plate (7) length.
3. grease leacher according to claim 1 and 2 is characterized in that: described top grating (6) and lower grid plate (7) all are tabular, but and are distributed with the grid hole that a plurality of feed flow attitude materials pass through on it.
4. grease leacher according to claim 1, it is characterized in that: described grease leacher comprises that also being connected described top grating (6) bottom can be used for accepting the bucket (8) that oils from top grating (6) place leakage of oil, be connected described lower grid plate (7) bottom and can be used for accepting following oil bucket (9) from lower grid plate (7) place leakage of oil, described mixing oil outlet (12) is arranged on the described bucket (8) that oils, and described leacher also comprises and being used for the described bucket (8) that oils, mixing oil circulation in the following oil bucket (9) is delivered to the mixing oil recycle system of described sprinkling system to spray.
5. grease leacher according to claim 4 is characterized in that: the used oil pipe that the described mixing oil recycle system comprises recycle pump and is used for the bucket that oils, following oil bucket are communicated with the inlet of sprinkling system.
6. grease leacher according to claim 4 is characterized in that: described bucket (8) and the described down oil bucket (9) of oiling all has the oil groove (15) that a plurality of tops communicate.
7. grease leacher according to claim 1 is characterized in that: the framework that each described pusher frame (5) is the H type by two cross sections constitutes.
8. according to claim 1 or 7 described grease leachers, it is characterized in that: described first sprocket wheel (2) and second sprocket wheel (3) have two respectively, these two first sprocket wheels (2) and second sprocket wheel (3) are in transmission connection by two the described ring-shaped conveying chains (4) that are parallel to each other respectively, and the both sides of described pusher frame (5) are connected with described two ring-shaped conveying chains (4) respectively.
9. grease leacher according to claim 8 is characterized in that: described drive-motor has two, is used for driving respectively described first sprocket wheel (2) and second sprocket wheel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061313 CN203096024U (en) | 2013-02-04 | 2013-02-04 | Grease extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061313 CN203096024U (en) | 2013-02-04 | 2013-02-04 | Grease extractor |
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| Publication Number | Publication Date |
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| CN203096024U true CN203096024U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320061313 Expired - Lifetime CN203096024U (en) | 2013-02-04 | 2013-02-04 | Grease extractor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614236A (en) * | 2013-12-12 | 2014-03-05 | 酉阳县康友粮油有限公司 | Oil extracting process |
| CN104450171A (en) * | 2014-11-28 | 2015-03-25 | 安徽大团结食用油有限公司 | Miniature box-type leacher for special oil |
| CN105822616A (en) * | 2016-05-23 | 2016-08-03 | 迈安德集团有限公司 | Driving control system of loop type extractor |
| CN105886118A (en) * | 2016-05-23 | 2016-08-24 | 迈安德集团有限公司 | Extraction technology for loop type extractor |
| CN110812883A (en) * | 2019-11-18 | 2020-02-21 | 湖南朝露生物科技有限公司 | Box-chain type plant extraction and leaching device |
-
2013
- 2013-02-04 CN CN 201320061313 patent/CN203096024U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614236A (en) * | 2013-12-12 | 2014-03-05 | 酉阳县康友粮油有限公司 | Oil extracting process |
| CN104450171A (en) * | 2014-11-28 | 2015-03-25 | 安徽大团结食用油有限公司 | Miniature box-type leacher for special oil |
| CN105822616A (en) * | 2016-05-23 | 2016-08-03 | 迈安德集团有限公司 | Driving control system of loop type extractor |
| CN105886118A (en) * | 2016-05-23 | 2016-08-24 | 迈安德集团有限公司 | Extraction technology for loop type extractor |
| CN105886118B (en) * | 2016-05-23 | 2019-05-14 | 迈安德集团有限公司 | A kind of extraction process of loop type extractor |
| CN110812883A (en) * | 2019-11-18 | 2020-02-21 | 湖南朝露生物科技有限公司 | Box-chain type plant extraction and leaching device |
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Granted publication date: 20130731 |