CN106039759A - Online filter device for abamectin extraction - Google Patents

Online filter device for abamectin extraction Download PDF

Info

Publication number
CN106039759A
CN106039759A CN201610432020.5A CN201610432020A CN106039759A CN 106039759 A CN106039759 A CN 106039759A CN 201610432020 A CN201610432020 A CN 201610432020A CN 106039759 A CN106039759 A CN 106039759A
Authority
CN
China
Prior art keywords
extraction
filtration device
avilamycin
double
net
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610432020.5A
Other languages
Chinese (zh)
Other versions
CN106039759B (en
Inventor
梁振兵
刘世宽
崔岩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QILU PHARMACEUTICAL (INNER MONGOLIA) CO Ltd
Original Assignee
QILU PHARMACEUTICAL (INNER MONGOLIA) CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by QILU PHARMACEUTICAL (INNER MONGOLIA) CO Ltd filed Critical QILU PHARMACEUTICAL (INNER MONGOLIA) CO Ltd
Priority to CN201610432020.5A priority Critical patent/CN106039759B/en
Publication of CN106039759A publication Critical patent/CN106039759A/en
Application granted granted Critical
Publication of CN106039759B publication Critical patent/CN106039759B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D11/00Solvent extraction
    • B01D11/02Solvent extraction of solids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D11/00Solvent extraction
    • B01D11/02Solvent extraction of solids
    • B01D11/0292Treatment of the solvent
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H1/00Processes for the preparation of sugar derivatives
    • C07H1/06Separation; Purification
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H17/00Compounds containing heterocyclic radicals directly attached to hetero atoms of saccharide radicals
    • C07H17/04Heterocyclic radicals containing only oxygen as ring hetero atoms
    • C07H17/08Hetero rings containing eight or more ring members, e.g. erythromycins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

The invention relates to an online filter device for abamectin extraction. The online filter device comprises an extraction column, a clarifying filtration device and a dust collecting device, wherein an alcohol spraying device is arranged at the top end of the extraction column and externally connected with a condensing system, the end, located in the extraction column, of the alcohol spraying device is connected with the dust collecting device, a sieve plate is arranged at the bottom of the extraction column, the clarifying filtration device is arranged on the sieve plate, the dust collecting device sequentially comprises a double-layer woven-mesh filter cylinder and a central support framework from outside to inside, and the clarifying filtration device sequentially comprises a double-layer stainless-steel woven filter mesh and a stainless-steel perforated mesh. By the filter device, operators need not to perform limited-space operations to replace filter materials after extraction equipment completes the process cycle of one batch of materials, the operation of the next batch of materials can be performed directly, potential operation safety hazards of the operators are reduced, the production cycle is shortened, and the cost of the filter materials is reduced.

Description

On-line filtration device during a kind of avilamycin extraction
Technical field:
The present invention relates to the extraction defecator of a kind of biological pesticide, during being specifically related to a kind of avilamycin extraction On-line filtration device.
Background technology:
Avilamycin is a kind of low toxicity, and efficiently, high selection, green, environment-friendly type, biogenic insecticide, it is fully solved Traditional pesticide exists environment is produced the problem polluted, and is the emphasis of China " the Seventh Five-Year Plan " " eight or five " " 95 " and Eleventh Five-Year Plan is attacked Pass project, along with the universal of avilamycin in recent years and downstream product with promote, has not only driven China's agricultural, animal husbandry big Power develops, and promotes agriculture-stock production and move towards green, and innoxious direction changes.As the most maximally efficient killing at present The avilamycin of one of worm agent, domestic usage amount is about about 2500 tons, becomes the main product in agricultural chemical insecticide.
In current avermectin extracting technique, extraction post is as the equipment used in avermectin extracting technique, because of it Use airtight filter operation system and dynamic elution processes, with short production cycle, low cost and by increasing A Wei Rhzomorph manufacturer substitutes, with it, the equipment that sheet frame extracts as avilamycin mycelia;But the leaching that present each producer is used generally Carry post all to there is problems in that and a set of (general simple can use filter cloth pressurization by long-term reusable defecator owing to not having Bar, as clarification filtration device, uses filter ruffle to add the pipe bucket device as dust catching of boring), each batch materials completes one After individual leaching process, being required for operator and enter tank and go to change filter material, this not only extends the production cycle, increases the work of employee Intensity, and restricted clearance operation to the safety of employee bring very big hidden danger (employee enters tank operation and easily causes and stir wound, suffocates, The harm such as poisoning).
Summary of the invention:
For the deficiencies in the prior art, the present invention provides on-line filtration device during a kind of avilamycin extraction, this mistake Filter device, without entering tank operation, can be reused for a long time, and equipment availability safety is low, greatly reduces the production cycle.
Technical scheme is as follows:
On-line filtration device during a kind of avilamycin extraction, including extraction post, clarification filtration device and dust catching Device, is provided with alcohol spray equipment, the external condenser system of alcohol spray equipment on the top of extraction post, is positioned at extraction post alcohol spray dress The end put is connected with dust catching device, and extraction column bottom is provided with sieve plate, and clarification filtration device is arranged on sieve plate, described Dust catching device ecto-entad include double braid net filter cylinder, central supported skeleton successively, clarification filtration device by down to On include successively double-layer stainless steel weave drainage screen, rustless steel punching net.
Currently preferred, the thickness of described rustless steel punching net is 5~8mm, and percent opening is 70~80%.
Currently preferred, the filtering accuracy of double-layer stainless steel mesh grid is 300~400 mesh.
The filtering accuracy of the double-layer stainless steel mesh grid of the present invention draws through long-term experiment, and filtering accuracy is crossed very much not Only can affect the rate of filtration of dynamic desorption liquid, it is even more important that mycelia easily remains in mesh grid, affect the longevity of mesh grid Life;Precision is too small, then leakiness mycelia during filtration, affects filter quality.
The clarification filtration device of the present invention, when dynamic desorption, is used for separating solid dreg and filtrate, and double-layer stainless steel is compiled Knitmesh uses stainless steel, and on have thicker punching web plate as protection, so this device is straight at extraction equipment " steaming wine " During logical high-temperature steam, filter material will not deform and wrinkle or carbonization;Further, since double braid net is relative to filter cloth, sintered meshwork, The permeability of the filter materials such as core is preferable, is extracting post antibacterial slag meeting of residual in mesh grid when carrying out dynamic desorption and filtering The blowout when solvent is reclaimed in steam blowback, it is ensured that the life-time service of drainage screen, it is not necessary to change.
Currently preferred, described rustless steel punching net, the shape of double-layer stainless steel mesh grid, size and sieve plate one Cause.
Currently preferred, described rustless steel punching net is the circular punching being spliced into by multiple bar shaped rustless steel punching nets Hole pattern, each bar shaped rustless steel punching net and double-layer stainless steel mesh grid by press strip, be bolted on sieve plate.
It is further preferred that described rustless steel punching net is to be spliced by 5 bar shaped rustless steel punching nets.
Currently preferred, the filtering accuracy of double braid net filter cylinder is 300~400 mesh.
Currently preferred, alcohol spray equipment includes drip washing house steward, and the end of drip washing house steward is provided with drip washing arm, in Heart support frame is fixed on drip washing house steward and goes up and be positioned at drip washing arm periphery, and double braid net filter cylinder is sleeved on central supported skeleton Outward and fixed by clip.
Currently preferred, a length of the 800~1000mm of double braid net filter cylinder.
Currently preferred, the end of double braid net filter cylinder is blocked by double braid net, the filtration essence of double braid net Degree is 300~400 mesh.
The dust catching device of the present invention separates with methanol steam as antibacterial slag dust when " steaming wine " technique, " steams Wine " technique refers to avilamycin dreg and soaking through methanol/ethanol, after dynamic desorption is complete bottom extraction equipment straight-through steam Solvent in dreg is evaporated the technical process reclaimed.After last consignment of material " steaming wine " operation completes, for mesh grid Dust on filter cylinder, when next group material benefit methanol operation starts, opens drip washing tube valve on methanol/ethanol spray equipment, The pressure utilizing pump drives 360 degree of spherical shower nozzle to rotate and the dreg that last consignment of material adheres on filter cylinder is cleaned up, it is not necessary to Operator enter tank and clean or change filter material.
Use the good effect acquired by the present invention: by using above-mentioned improvement defecator, complete at extraction equipment After the process cycle of one batch materials, it is not necessary to operator carry out restricted clearance operation and change filter material, directly can be carried out next The operation of batch materials, this not only lowers the potential safety hazard of operator's operation, and shortens the production cycle, saved filter material Cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of on-line filtration device during avilamycin of the present invention extracts,
Fig. 2 is the decomposition texture schematic diagram of clarification filtration device;
In figure, 1, clarification filtration device, 2, rustless steel punching net, 3, double-layer stainless steel braiding drainage screen, 4, sieve plate;5, powder Dirt capturing device, 6, double braid net filter cylinder, 7, ball shape rotary shower nozzle, 8, drip washing house steward, 10, methanol/ethanol import, 11, nitrogen Gas import, 12, liquid outlet.
Detailed description of the invention:
Below by specific embodiment and combine accompanying drawing the present invention will be further described, but it is not limited to this.
Embodiment 1
A kind of avilamycin extract during on-line filtration device, structure as shown in Figure 1 and Figure 2, including extraction post, clarification Defecator 1 and dust catching device, be provided with alcohol spray equipment on the top of extraction post, the external condenser system of alcohol spray equipment, The end being positioned at extraction post alcohol spray equipment is connected with dust catching device 5, and extraction column bottom is provided with sieve plate 4, clarified Filter device 1 is arranged on sieve plate 4, and described dust catching device 5 ecto-entad includes double braid net filter cylinder 6, center successively Support frame, clarification filtration device 1 includes that double-layer stainless steel weaves drainage screen 3, rustless steel punching net 2 the most successively.Institute The thickness stating rustless steel punching net 2 is 5mm, and percent opening is 70%, and the filtering accuracy of double-layer stainless steel mesh grid 3 is 300 mesh.Institute The rustless steel punching net stated, the shape of double-layer stainless steel mesh grid, size are consistent with sieve plate.Rustless steel punching net 2 is by 5 bars The circular punching net that shape rustless steel punching net is spliced into, each bar shaped rustless steel punching net and double-layer stainless steel mesh grid 3 are by pressing Bar, it is bolted on sieve plate.The filtering accuracy of double braid net filter cylinder is 300 mesh.
Alcohol spray equipment includes drip washing house steward 8, is provided with drip washing arm in the end of drip washing house steward, and central supported skeleton is solid Being scheduled on drip washing house steward and go up and be positioned at drip washing arm periphery, double braid net filter cylinder is sleeved on outside central supported skeleton and passes through clip Fixing.
The a length of 800mm of double braid net filter cylinder, the end of double braid net filter cylinder is blocked by double braid net, double-deck The filtering accuracy of mesh grid is 300 mesh.
Work process:
1. the avilamycin mycelium after drying puts in extraction post, first with 1-2 times of methanol or ethanol static immersing 1~ 2 hours, then add methanol from extraction capital end methanol/ethanol import 10 continuously or ethanol carries out dynamic desorption, use clarification Defecator 1 filters, and collects lixiviating solution continuously by the liquid outlet 12 of extraction post bottom, the methanol of dynamic desorption or second Alcohol is 6~8 times of avilamycin mycelium weight;
2., when in the effluent of eluting, avilamycin residual is less than 100u/mg, stop adding methanol or ethanol, from extraction The nitrogen inlet 11 of column top is passed through nitrogen and uses clarification filtration device 1 all to extrude remaining lixiviating solution in extraction post;
3. from the sieve plate of extraction post, it is passed through saturated vapor, makes the methanol of absorption in avilamycin mycelium or ethanol be heated Volatilization, is led to condenser after being filtered by extraction post top dust catching device 5 and carries out the recovery of methanol or ethanol.
4., after the useless dreg after having reclaimed methanol or ethanol in extracting post clears out totally, open methanol/ethanol drip washing pipe 8 Drip washing starts after 15 minutes to cast a batch materials.
Embodiment 2
On-line filtration device during extracting with the avilamycin described in embodiment, difference is:
The thickness of described rustless steel punching net 2 is 7mm, and percent opening is 75%, the filtering accuracy of double-layer stainless steel mesh grid 3 It is 350 mesh.Described rustless steel punching net, the shape of double-layer stainless steel mesh grid, size are consistent with sieve plate.Rustless steel punching net 2 is the circular punching net being spliced into by 5 bar shaped rustless steel punching nets, and each bar shaped rustless steel punching net and double-layer stainless steel are compiled Knitmesh 3 by press strip, be bolted on sieve plate.The filtering accuracy of double braid net filter cylinder is 350 mesh.
The a length of 900mm of double braid net filter cylinder, the end of double braid net filter cylinder is blocked by double braid net, double-deck The filtering accuracy of mesh grid is 350 mesh.
Work process:
1. the avilamycin mycelium 2500kg after drying, titer is that 120000u/ml puts in extraction post, first uses 5m3 Methanol concentration is the static immersing 1 hour of 95%, and then adding concentration from extraction capital end methanol import continuously is the first of 95% Alcohol carries out dynamic desorption, uses clarification filtration device to filter, and collects extraction dope continuously by extraction post low side liquid outlet It is about 4.5m3
2. the amount working as addition methanol is 19m3Time, in the effluent of sampling detection eluting, avilamycin residual is 90u/mg, Stop being passed through methanol.It is passed through nitrogen from extraction capital nitrogen inlet end and will extract remaining lixiviating solution employing clarification filtration dress post Put all extrusion,
3. it is passed through, from the sieve plate of extraction post, the saturated vapor that temperature is 200~240 DEG C, makes avilamycin mycelium is inhaled Attached methanol is heated volatilization, leads to condenser and carry out returning of methanol after being filtered by extraction post top dust catching and spray equipment Receive, when the temperature on alcohol evaporation collecting pipe reaches 90~95 DEG C, stop being passed through saturated vapor;
4., after the useless dreg having reclaimed methanol in extraction post being cleared out totally, open methanol/ethanol drip washing pipe drip washing 15 points Start after clock to cast a batch materials.The operation carrying out above step repeated, completes the immersion of the upper different batches material produced Extract.
Embodiment 3
On-line filtration device during extracting with the avilamycin described in embodiment, difference is:
The thickness of described rustless steel punching net 2 is 8mm, and percent opening is 80%, the filtering accuracy of double-layer stainless steel mesh grid 3 It is 400 mesh.Described rustless steel punching net, the shape of double-layer stainless steel mesh grid, size are consistent with sieve plate.Rustless steel punching net 2 is the circular punching net being spliced into by 8 bar shaped rustless steel punching nets, and each bar shaped rustless steel punching net and double-layer stainless steel are compiled Knitmesh 3 by press strip, be bolted on sieve plate.The filtering accuracy of double braid net filter cylinder is 400 mesh.
The a length of 1000mm of double braid net filter cylinder, the end of double braid net filter cylinder is blocked by double braid net, double The filtering accuracy of layer mesh grid is 400 mesh.
Comparative example 1
Defecator during a kind of avilamycin extraction, including extraction post, clarification filtration device, on the top of extraction post Being provided with alcohol spray equipment, the external condenser system of alcohol spray equipment, extraction column bottom is provided with sieve plate, and clarification filtration device is arranged on On sieve plate, clarification filtration device includes press strip and filter cloth, and filtering accuracy is 300 mesh, and filter cloth is fixed on sieve plate by press strip.
Comparative example 2
Defecator during a kind of avilamycin extraction, including extraction post and dust catching device, on the top of extraction post End is provided with alcohol spray equipment, the external condenser system of alcohol spray equipment, and the end being positioned at extraction post alcohol spray equipment is caught with dust Acquisition means connects, and described dust catching device is the pipe bucket that filter ruffle adds boring, and filtering accuracy is 300 mesh.
Test example
By above-described embodiment 1~2 and comparative example 1~2 repeat the reality of many batch materials according to the working method of embodiment After testing, the filter effect of defecator, in service life, produce batch average used time, and staff labor intensity makees an experiment Contrast table, the results are shown in Table shown in 1.
Table 1
Remarks: the dreg leaching 40~50kg in experimental example 1 again is at the bottom of due to inevitable post during each replacing filter cloth Dreg, also filter cloth fragile after rake discharging (aperture occurs) can be leak into, cause penetrating into dreg during filter pressing;Above-mentioned multiple filter is adopted Be that pressure filter filters;
By two groups of Experimental comparison's cases in upper table understand use the present invention provide avilamycin extract during Line defecator can realize good clarification filtration effect, it is not necessary to multiple filter, and without entering tank operation, can reuse for a long time, if Standby operational security is low, greatly reduces the production cycle.

Claims (10)

1. an on-line filtration device during avilamycin extracts, including extraction post, clarification filtration device and dust catching dress Put, be provided with alcohol spray equipment, the external condenser system of alcohol spray equipment on the top of extraction post, be positioned at extraction post alcohol spray equipment End be connected with dust catching device, extraction column bottom be provided with sieve plate, clarification filtration device is arranged on sieve plate, described Dust catching device ecto-entad includes double braid net filter cylinder, central supported skeleton successively, and clarification filtration device is from the bottom to top Include that double-layer stainless steel weaves drainage screen, rustless steel punching net successively.
On-line filtration device during avilamycin the most according to claim 1 extraction, it is characterised in that described rustless steel The thickness of punching net is 5~8mm, and percent opening is 70~80%.
On-line filtration device during avilamycin the most according to claim 1 extraction, it is characterised in that double-layer stainless steel The filtering accuracy of mesh grid is 300~400 mesh.
On-line filtration device during avilamycin the most according to claim 1 extraction, it is characterised in that described is stainless Steel drift hole pattern, the shape of double-layer stainless steel mesh grid, size are consistent with sieve plate.
On-line filtration device during avilamycin the most according to claim 1 extraction, it is characterised in that described is stainless Steel drift hole pattern is the circular punching net being spliced into by multiple bar shaped rustless steel punching nets, each bar shaped rustless steel punching net and bilayer Rustless steel mesh grid by press strip, be bolted on sieve plate.
On-line filtration device during avilamycin the most according to claim 5 extraction, it is characterised in that described is stainless Steel drift hole pattern is to be spliced by 5 bar shaped rustless steel punching nets.
On-line filtration device during avilamycin the most according to claim 1 extraction, it is characterised in that double braid net The filtering accuracy of filter cylinder is 300~400 mesh.
On-line filtration device during avilamycin the most according to claim 1 extraction, it is characterised in that alcohol spray equipment Including drip washing house steward, being provided with drip washing arm in the end of drip washing house steward, central supported skeleton is fixed on the upper also position of drip washing house steward In drip washing arm periphery, double braid net filter cylinder is sleeved on outside central supported skeleton and is fixed by clip.
On-line filtration device during avilamycin the most according to claim 1 extraction, it is characterised in that double braid net A length of the 800 of filter cylinder~1000mm.
On-line filtration device during avilamycin the most according to claim 1 extraction, it is characterised in that double braid The end of net filter cylinder is blocked by double braid net, and the filtering accuracy of double braid net is 300~400 mesh.
CN201610432020.5A 2016-06-16 2016-06-16 On-line filtration device in a kind of avermectin extraction process Active CN106039759B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610432020.5A CN106039759B (en) 2016-06-16 2016-06-16 On-line filtration device in a kind of avermectin extraction process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610432020.5A CN106039759B (en) 2016-06-16 2016-06-16 On-line filtration device in a kind of avermectin extraction process

Publications (2)

Publication Number Publication Date
CN106039759A true CN106039759A (en) 2016-10-26
CN106039759B CN106039759B (en) 2018-11-20

Family

ID=57168415

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610432020.5A Active CN106039759B (en) 2016-06-16 2016-06-16 On-line filtration device in a kind of avermectin extraction process

Country Status (1)

Country Link
CN (1) CN106039759B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1923840A (en) * 2006-09-27 2007-03-07 河北瑞通美邦工程有限公司 Extraction technology of avermectin
CN102993252A (en) * 2012-12-31 2013-03-27 齐鲁制药(内蒙古)有限公司 Method and device for extracting avermectins
CN205216223U (en) * 2015-11-26 2016-05-11 山东福胶集团有限公司 Extracting tank
CN105641969A (en) * 2016-01-08 2016-06-08 严修长 Traditional Chinese medicine extraction tank
CN205699571U (en) * 2016-06-16 2016-11-23 齐鲁制药(内蒙古)有限公司 On-line filtration device during a kind of avilamycin extraction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1923840A (en) * 2006-09-27 2007-03-07 河北瑞通美邦工程有限公司 Extraction technology of avermectin
CN102993252A (en) * 2012-12-31 2013-03-27 齐鲁制药(内蒙古)有限公司 Method and device for extracting avermectins
CN205216223U (en) * 2015-11-26 2016-05-11 山东福胶集团有限公司 Extracting tank
CN105641969A (en) * 2016-01-08 2016-06-08 严修长 Traditional Chinese medicine extraction tank
CN205699571U (en) * 2016-06-16 2016-11-23 齐鲁制药(内蒙古)有限公司 On-line filtration device during a kind of avilamycin extraction

Also Published As

Publication number Publication date
CN106039759B (en) 2018-11-20

Similar Documents

Publication Publication Date Title
EP2419559B1 (en) Condensation dryer having a filter device
CN108050804A (en) A kind of tea drier based on roller stir-frying technology
CN110483592A (en) A kind of industrialized preparing process extracting tea polyphenols from green tea
CN205699571U (en) On-line filtration device during a kind of avilamycin extraction
CN109134560A (en) A method of extracting anthocyanin from Roselle calyx
CN106039759A (en) Online filter device for abamectin extraction
CN102617669A (en) Method for separating and purifying mangiferin from mango pericarp
CN110025975A (en) A kind of online countercurrent screw extraction equipment of tobacco
DE4028341A1 (en) SPRAY DRYER FOR DRYING SOLID SPECIMENS SOLVED IN ORGANIC SOLVENTS
CN112159311B (en) Extraction and purification method of cannabidiol
CN1724005A (en) Method for extracting volatile oil and liposoluble alkaloid from plumula nelumbini
CN105693675B (en) A method of extracting flavone compound component from marigold
CN114617908A (en) Efficient radix bupleuri impurity removal process
CN101774989B (en) Method for extracting refined yellow pigment from red flowers
EP3098215B1 (en) Method and device for treating terephthalic acid
CN209438062U (en) A kind of drying device extracting flavones applied to ginkgo leaf
CN211611649U (en) A vacuum concentration device for chinese yew extract product
DE2044056B2 (en) PROCESS AND EQUIPMENT FOR FILTRATING SOLVENT BROODS CONTAMINATED WITH DUST
CN114042114A (en) Preparation method of tea polyphenol by adopting ethyl acetate extraction
CN102993252B (en) A kind of extraction method of abamectin and device
CN208512031U (en) A kind of drum microfiltration machine
CN106336390A (en) Method for extracting flavone from banana leaves
CN207963365U (en) A kind of tea drier for the technology that stir-fried based on roller
CN113082763A (en) Biological medicine extraction device and method and application
EP0191423B1 (en) Cleaning machine for dry-cleaning textile articles

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant