CN110762162A - High-efficiency safe centrifugation process of sulfadoxine - Google Patents
High-efficiency safe centrifugation process of sulfadoxine Download PDFInfo
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- CN110762162A CN110762162A CN201911040628.3A CN201911040628A CN110762162A CN 110762162 A CN110762162 A CN 110762162A CN 201911040628 A CN201911040628 A CN 201911040628A CN 110762162 A CN110762162 A CN 110762162A
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- sulfadoxine
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- 238000005119 centrifugation Methods 0.000 title claims abstract description 34
- PJSFRIWCGOHTNF-UHFFFAOYSA-N Sulphormetoxin Chemical compound COC1=NC=NC(NS(=O)(=O)C=2C=CC(N)=CC=2)=C1OC PJSFRIWCGOHTNF-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229960004673 sulfadoxine Drugs 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims description 25
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000007363 ring formation reaction Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005660 chlorination reaction Methods 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000003754 machining Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- JVXRCPLFBHIDMU-UHFFFAOYSA-N [Na].[Na].COC=1C(=NC=NC1O)O Chemical compound [Na].[Na].COC=1C(=NC=NC1O)O JVXRCPLFBHIDMU-UHFFFAOYSA-N 0.000 description 2
- 229940124350 antibacterial drug Drugs 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 229940124530 sulfonamide Drugs 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HFDVKYCCJYDRFC-UHFFFAOYSA-N 1-o-ethyl 3-o-methyl 2-methoxypropanedioate Chemical compound CCOC(=O)C(OC)C(=O)OC HFDVKYCCJYDRFC-UHFFFAOYSA-N 0.000 description 1
- IJQIGKLDBGKSNT-UHFFFAOYSA-N 4,6-dichloro-5-methoxypyrimidine Chemical compound COC1=C(Cl)N=CN=C1Cl IJQIGKLDBGKSNT-UHFFFAOYSA-N 0.000 description 1
- RMSFTZDTJHYIFE-UHFFFAOYSA-N 4-amino-n-(4,6-dimethoxypyrimidin-2-yl)benzenesulfonamide Chemical compound COC1=CC(OC)=NC(NS(=O)(=O)C=2C=CC(N)=CC=2)=N1 RMSFTZDTJHYIFE-UHFFFAOYSA-N 0.000 description 1
- 208000004429 Bacillary Dysentery Diseases 0.000 description 1
- XGNJVIAPUZWGDK-UHFFFAOYSA-N COC=1C=NC=NC1OC.S(=O)(C1=CC=C(C=C1)N)(=O)N Chemical compound COC=1C=NC=NC1OC.S(=O)(C1=CC=C(C=C1)N)(=O)N XGNJVIAPUZWGDK-UHFFFAOYSA-N 0.000 description 1
- 208000004232 Enteritis Diseases 0.000 description 1
- 206010017915 Gastroenteritis shigella Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 1
- 241001536563 Panus Species 0.000 description 1
- 206010057190 Respiratory tract infections Diseases 0.000 description 1
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- 206010046306 Upper respiratory tract infection Diseases 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 201000007227 lymph node tuberculosis Diseases 0.000 description 1
- 201000004792 malaria Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 208000008128 pulmonary tuberculosis Diseases 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 201000005113 shigellosis Diseases 0.000 description 1
- 206010040872 skin infection Diseases 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- FDDDEECHVMSUSB-UHFFFAOYSA-N sulfanilamide Chemical compound NC1=CC=C(S(N)(=O)=O)C=C1 FDDDEECHVMSUSB-UHFFFAOYSA-N 0.000 description 1
- 150000003456 sulfonamides Chemical class 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a high-efficiency safe centrifugation process of sulfadoxine, wherein a centrifugation process is completed in a high-efficiency safe centrifugation separation device, the high-efficiency safe centrifugation device comprises a filter type centrifuge body, and the periphery of the filter type centrifuge body is respectively installed on a fixed base through spring sleeve installation components with eccentric adjustment functions; each spring sleeve mounting assembly comprises an eccentric adjusting spring, a fixed locking screw rod, an inner nested pipe integrally arranged on a fixed base and a mounting sleeve fixedly arranged on an upper mounting plate, the mounting sleeve is fixedly sleeved on the periphery of the inner nested pipe, the eccentric adjusting spring is arranged between the upper mounting plate and the fixed base and is positioned on the inner periphery of the inner nested pipe, and the fixed locking screw rod is inserted in the eccentric adjusting spring and is in locking fit with the inner thread of the fixed base; the invention can reliably ensure that sulfadoxine efficiently and safely completes the centrifugal process in the preparation process, ensure that the centrifugal process can be operated reliably for a long time, and simultaneously avoid potential safety hazards.
Description
Technical Field
The invention belongs to the technical field of preparation of sulfanilamide antibacterial drugs, and particularly relates to a high-efficiency safe centrifugation process of sulfadoxine.
Background
Sulfadoxine is also called sulfadoxine, sulfa-dimethoxy pyrimidine or 4-sulfanilamide-5, 6 dimethoxy pyrimidine, is white or white-like crystalline powder, is slightly bitter in taste, odorless, gradually discolored with light, slightly soluble in water, methanol and ethanol, insoluble in ether, soluble in sodium hydroxide and dilute inorganic acid, and belongs to sulfonamide antibacterial drugs. Sulfadoxine has the characteristics of long curative effect and low toxicity, can treat general inflammations such as upper respiratory tract infection panus, bacillary dysentery enteritis, skin infection and the like, has certain curative effect on pulmonary tuberculosis, scrofula and the like by being matched with other medicines, and can also treat malaria. In addition, it can be used for preventing rheumatic diseases.
The applicant has concentrated on the preparation of high-purity sulfadoxine for many years, wherein a patent application of CN201110285789.6 is proposed in 2011, 9, 23, and specifically a new preparation route is proposed, which comprises a cyclization reaction and a chlorination reaction, wherein the cyclization reaction is as follows: firstly, putting a sodium methoxide solution into a reaction pot, then sequentially adding formamide and methyl ethyl methoxymalonate, preserving heat, recovering methanol, cooling, crystallizing, centrifugally drying, discharging and drying to obtain 5-methoxy-4, 6-dihydroxypyrimidine disodium; the chlorination reaction is as follows: firstly putting phosphorus oxychloride into a reaction kettle for heating, then adding 5-methoxy-4, 6-dihydroxypyrimidine disodium into the reaction kettle for reaction, decompressing and recovering the phosphorus oxychloride until the materials are dry, cooling, adding trichloroethylene, stirring uniformly, then introducing into a hydrolysis kettle for hydrolysis, standing for layering, collecting a trichloroethylene layer, carrying out neutralization reaction, controlling the pH value, washing, separating a water layer, recovering the trichloroethylene, discharging crystals, and obtaining the 5-methoxy-4, 6-dichloropyrimidine, which is beneficial to avoiding the phenomenon that impurities are wrapped by the product viscosity increase caused by mother liquor in the cyclization reaction to be difficult to separate, difficult to crystallize and difficult to dry so as to ensure the purity of the product, is beneficial to preventing the equipment from being seriously corroded in an acidic environment to protect the equipment and prolong the service life of the equipment, and is beneficial to eliminating the use of an N-N-dimethylaniline catalyst in the chlorination reaction so as to avoid the damage to the body of an operator and avoid the damage to the body and the difficulty in A process for the preparation of sulfadoxine which impairs the environment and thereby also significantly improves the product quality.
We can see that in the whole preparation process of sulfadoxine, a centrifuge needs to be used for centrifugal separation and dehydration for multiple times, and under the working condition of high-speed rotation and centrifugation, the centrifuge inevitably has the problem of eccentric vibration, which not only influences the centrifugal quality of sulfadoxine in actual production and manufacturing, but also is a great potential safety hazard; with the continuous concentration of the applicant in the field of sulfadoxine preparation for many years, further research and development on the centrifugal process of sulfadoxine is expected.
Disclosure of Invention
In view of this, the invention aims to provide an efficient and safe centrifugation process of sulfadoxine, which can reliably ensure that sulfadoxine efficiently and safely completes a centrifugation process in a preparation process, ensure that the centrifugation process can be operated reliably for a long time, and simultaneously avoid potential safety hazards.
The technical scheme adopted by the invention is as follows:
a high-efficiency safe centrifugation process of sulfadoxine is characterized in that the sulfadoxine is prepared through cyclization reaction, chlorination reaction and finish machining treatment, wherein the cyclization reaction and the finish machining treatment comprise centrifugation processes, the centrifugation processes are completed in a high-efficiency safe centrifugation device, the high-efficiency safe centrifugation device comprises a filter type centrifuge body, and the periphery of the filter type centrifuge body is respectively installed on a fixed base through spring sleeve installation components with eccentric adjusting functions; each spring sleeve mounting assembly comprises an eccentric adjusting spring, a fixed locking screw rod, an inner nested pipe integrally arranged on the fixed base and a mounting sleeve fixedly arranged on the upper mounting plate, the mounting sleeve is fixedly sleeved on the periphery of the inner nested pipe, the eccentric adjusting spring is arranged between the upper mounting plate and the fixed base and is positioned on the inner periphery of the inner nested pipe, and the fixed locking screw rod is inserted in the eccentric adjusting spring and is in threaded locking fit with the inner part of the fixed base; in the process of centrifugal process, the filtering type centrifuge body is subjected to real-time eccentric adjustment through the spring sleeving installation assemblies positioned on the periphery of the filtering type centrifuge body, so that the problem of aggravated eccentric vibration is avoided.
Preferably, the periphery of the filter type centrifuge body is limited and installed in a limiting center hole of the upper installation plate.
Preferably, the distance between the upper mounting plate and the fixed base is no greater than half the height of the filtering centrifuge body.
Preferably, the filtering centrifuge body comprises a centrifuge sleeve provided with a filtering centrifuge mechanism, and a centrifuge cover plate fixedly mounted above the centrifuge sleeve, wherein the filtering centrifuge mechanism is electrically connected with an external power source through the centrifuge cover plate.
It should also be noted that the remaining schemes of the cyclization reaction and the chlorination reaction adopted in the present invention can be completely in accordance with the content of the prior patent CN201110285789.6 of the present applicant, which is not the main innovative content of the present invention, and therefore, the detailed description thereof is not repeated.
The applicant combines the production experience of sulfadoxine for many years, finds that the centrifugal separation process needs to be frequently applied in the preparation process of sulfadoxine, but in batch production, under the high-speed rotation centrifugal working condition, the centrifugal machine inevitably has the problem of eccentric vibration, which not only influences the centrifugal quality of sulfadoxine but also is a great potential safety hazard in actual production and manufacture, and carries out safe innovation and transformation on a centrifugal device, in particular to arrange a spring sleeve mounting assembly with an eccentric adjusting function to realize the mounting of the centrifugal device on a fixed base, and test tests prove that in the centrifugal process, a filter type centrifugal machine body carries out real-time eccentric adjustment through the spring sleeve mounting assembly positioned around the filter type centrifugal machine body, so that the problem of aggravated eccentric vibration is avoided, and the efficient and safe completion of the centrifugal process in the preparation process of sulfadoxine can be reliably ensured, the centrifugal process can be ensured to operate reliably for a long time, and potential safety hazards are avoided.
Drawings
FIG. 1 is a schematic structural diagram of a high-efficiency safe centrifugal separation device according to an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of FIG. 1;
fig. 3 is a schematic diagram of the exploded structure of fig. 1.
Detailed Description
The embodiment of the invention discloses a high-efficiency safe centrifugation process of sulfadoxine, which is prepared by cyclization reaction, chlorination reaction and finish machining treatment, wherein the cyclization reaction and the finish machining treatment comprise centrifugation processes, the centrifugation processes are completed in a high-efficiency safe centrifugation device, the high-efficiency safe centrifugation device comprises a filter type centrifuge body, and the periphery of the filter type centrifuge body is respectively arranged on a fixed base through spring sleeve mounting assemblies with eccentric adjusting functions; each spring sleeve mounting assembly comprises an eccentric adjusting spring, a fixed locking screw rod, an inner nested pipe and a mounting sleeve, wherein the inner nested pipe is integrally arranged on a fixed base, the mounting sleeve is fixedly arranged on an upper mounting plate, the mounting sleeve is fixedly sleeved on the periphery of the inner nested pipe, the eccentric adjusting spring is arranged between the upper mounting plate and the fixed base and is positioned on the inner periphery of the inner nested pipe, and the fixed locking screw rod is inserted in the eccentric adjusting spring and is in locking fit with the inner thread of the fixed base; in the process of centrifugal process, the filtering centrifuge body is subjected to real-time eccentric adjustment through the spring sleeving installation assemblies positioned around the filtering centrifuge body, so that the problem of aggravated eccentric vibration is avoided.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A high-efficiency safe centrifugation process of sulfadoxine is disclosed, the sulfadoxine is prepared by cyclization reaction, chlorination reaction and finish machining treatment, the cyclization reaction and the finish machining treatment both comprise centrifugation processes, and the centrifugation processes are completed in a high-efficiency safe centrifugation separation device;
referring to fig. 1, 2 and 3, the high-efficiency safety centrifuge device 100 includes a filtering centrifuge body 110, preferably, in the present embodiment, the filtering centrifuge body 110 includes a centrifuge sleeve 111 provided with a filtering centrifuge mechanism (not shown), a centrifuge cover plate 112 fixedly installed above the centrifuge sleeve 111, the filtering centrifuge mechanism is electrically connected with an external power source through the centrifuge cover plate 112, and the specific structure of the filtering centrifuge mechanism may refer to any structure in the prior art, which is not particularly limited in the present application;
in the present embodiment, the filter centrifuge body 110 is mounted on the fixed base by spring socket mounting assemblies 120a, 120b, 120c, 120d having an eccentric adjustment function, respectively, around the periphery thereof; each spring sleeve mounting assembly 120a, 120b, 120c, 120d comprises an eccentric adjusting spring 121, a fixed locking screw 122, an inner nested pipe 123 integrally arranged on the fixed base 130, and a mounting sleeve 124 fixedly arranged on the upper mounting plate 140, the mounting sleeve 124 is fixedly sleeved on the periphery of the inner nested pipe 123, the eccentric adjusting spring 121 is arranged between the upper mounting plate 140 and the fixed base 130 and is positioned on the inner periphery of the inner nested pipe 123, and the fixed locking screw 122 is inserted in the eccentric adjusting spring 121 and is in locking fit with the internal thread of the fixed base 130;
preferably, in the present embodiment, the filter centrifuge body 110 is mounted in a position-limited central hole of the upper mounting plate 140 in a position-limited manner at the outer periphery; the distance L10 between the upper mounting plate 140 and the fixed base 130 is no greater than half the height H10 of the filtering centrifuge body 110;
in the process of the centrifugal process, the filtering centrifuge body 110 is subjected to real-time eccentric adjustment through the spring sleeving installation assemblies 120a, 120b, 120c and 120d positioned on the periphery of the filtering centrifuge body, so that the problem of aggravated eccentric vibration is avoided;
the applicant combines the production experience of sulfadoxine for many years, finds that the centrifugal separation process needs to be frequently applied in the preparation process of sulfadoxine, but in mass production, under the high-speed rotation and centrifugation working condition, the centrifugal machine inevitably has the problem of eccentric vibration, which not only influences the centrifugation quality of sulfadoxine but also is a great potential safety hazard in actual production and manufacture, the applicant carries out safety innovation and transformation on the centrifugal device, specifically, the centrifugal device 100 is installed on the fixed base 130 by arranging the spring sleeving installation components 120a, 120b, 120c and 120d with the eccentric adjustment function, and through experimental test and verification, in the process of the centrifugation procedure, the filtration type centrifuge body carries out real-time eccentric adjustment through the spring sleeving installation components 120a, 120b, 120c and 120d around the filtration type centrifuge body, the problem of aggravation of eccentric vibration is avoided, the high-efficiency and safe completion of the centrifugal process of sulfadoxine in the preparation process can be reliably guaranteed, the centrifugal process can be guaranteed to operate reliably for a long time, and potential safety hazards are avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A high-efficiency safe centrifugation process of sulfadoxine is characterized in that the centrifugation process is completed in a high-efficiency safe centrifugation device, the high-efficiency safe centrifugation device comprises a filter type centrifuge body, and the periphery of the filter type centrifuge body is respectively installed on a fixed base through spring sleeve installation components with eccentric adjusting functions; each spring sleeve mounting assembly comprises an eccentric adjusting spring, a fixed locking screw rod, an inner nested pipe integrally arranged on the fixed base and a mounting sleeve fixedly arranged on the upper mounting plate, the mounting sleeve is fixedly sleeved on the periphery of the inner nested pipe, the eccentric adjusting spring is arranged between the upper mounting plate and the fixed base and is positioned on the inner periphery of the inner nested pipe, and the fixed locking screw rod is inserted in the eccentric adjusting spring and is in threaded locking fit with the inner part of the fixed base; in the process of centrifugal process, the filtering type centrifuge body is subjected to real-time eccentric adjustment through the spring sleeving installation assemblies positioned on the periphery of the filtering type centrifuge body, so that the problem of aggravated eccentric vibration is avoided.
2. The high-efficiency safe centrifugation process of sulfadoxine as claimed in claim 1, wherein the filtration centrifuge body outer periphery is limit-mounted in the limit central hole of the upper mounting plate.
3. The high-efficiency safe centrifugation process of sulfadoxine of claim 1, wherein the distance between the upper mounting plate and the fixed base is no more than half of the height of the filtering centrifuge body.
4. The high-efficiency safe centrifugal process of sulfadoxine as claimed in claim 1, wherein the filtering centrifuge body comprises a centrifuge sleeve with a filtering centrifuge mechanism, a centrifuge cover plate fixedly installed above the centrifuge sleeve, the filtering centrifuge mechanism is electrically connected with an external power source through the centrifuge cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040628.3A CN110762162A (en) | 2019-10-30 | 2019-10-30 | High-efficiency safe centrifugation process of sulfadoxine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040628.3A CN110762162A (en) | 2019-10-30 | 2019-10-30 | High-efficiency safe centrifugation process of sulfadoxine |
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| CN110762162A true CN110762162A (en) | 2020-02-07 |
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| CN201911040628.3A Pending CN110762162A (en) | 2019-10-30 | 2019-10-30 | High-efficiency safe centrifugation process of sulfadoxine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111644139A (en) * | 2020-06-18 | 2020-09-11 | 许吉界 | Stirring reaction kettle for preparing foaming material |
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| CN207929426U (en) * | 2017-12-20 | 2018-10-02 | 湛江中科技术服务有限公司 | A kind of fixing device of Food Inspection centrifuge |
| CN208466191U (en) * | 2018-05-25 | 2019-02-05 | 郑州国食科技有限公司 | A kind of 3-foot centrifugation apparatus of Goat Placenta amino acids oral-liquor |
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-
2019
- 2019-10-30 CN CN201911040628.3A patent/CN110762162A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2649770A1 (en) * | 1989-07-11 | 1991-01-18 | Sigma Laborzentrifugen Gmbh | VIBRATION SHOCK ABSORBER AND CENTRIFUGE SUSPENSION DAMPED IN VIBRATION |
| CN102311393A (en) * | 2011-09-23 | 2012-01-11 | 常熟市金申医化制品有限责任公司 | Preparation method of sulfadoxine |
| CN203685972U (en) * | 2013-12-12 | 2014-07-02 | 上海力申科学仪器有限公司 | Two-stage damping structure for table centrifuge |
| CN204784372U (en) * | 2015-07-14 | 2015-11-18 | 潍坊东兴防爆电器有限公司 | Bumper shock absorber for centrifugal separator |
| CN206839085U (en) * | 2017-06-10 | 2018-01-05 | 天津泰利兴金属制品有限公司 | A kind of bradyseism formula vertical centrifugal casting device |
| CN207929426U (en) * | 2017-12-20 | 2018-10-02 | 湛江中科技术服务有限公司 | A kind of fixing device of Food Inspection centrifuge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111644139A (en) * | 2020-06-18 | 2020-09-11 | 许吉界 | Stirring reaction kettle for preparing foaming material |
| CN111644139B (en) * | 2020-06-18 | 2022-01-28 | 淄博鲁扬冷暖设备有限公司 | Stirring reaction kettle for preparing foaming material |
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