CN112808206A - A extract acidizing device for terramycin production - Google Patents
A extract acidizing device for terramycin production Download PDFInfo
- Publication number
- CN112808206A CN112808206A CN202011596789.3A CN202011596789A CN112808206A CN 112808206 A CN112808206 A CN 112808206A CN 202011596789 A CN202011596789 A CN 202011596789A CN 112808206 A CN112808206 A CN 112808206A
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- Prior art keywords
- mixing
- acidification
- fixedly connected
- screw rod
- barrel body
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Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- KIPLYOUQVMMOHB-MXWBXKMOSA-L [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O Chemical compound [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O KIPLYOUQVMMOHB-MXWBXKMOSA-L 0.000 title claims description 16
- 229940063650 terramycin Drugs 0.000 title claims description 16
- 238000002156 mixing Methods 0.000 claims abstract description 52
- 230000020477 pH reduction Effects 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000000605 extraction Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012452 mother liquor Substances 0.000 abstract description 25
- 230000008602 contraction Effects 0.000 abstract description 13
- 239000004100 Oxytetracycline Substances 0.000 abstract description 6
- IWVCMVBTMGNXQD-PXOLEDIWSA-N oxytetracycline Chemical compound C1=CC=C2[C@](O)(C)[C@H]3[C@H](O)[C@H]4[C@H](N(C)C)C(O)=C(C(N)=O)C(=O)[C@@]4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-PXOLEDIWSA-N 0.000 abstract description 6
- 229960000625 oxytetracycline Drugs 0.000 abstract description 6
- 235000019366 oxytetracycline Nutrition 0.000 abstract description 6
- IWVCMVBTMGNXQD-UHFFFAOYSA-N terramycin dehydrate Natural products C1=CC=C2C(O)(C)C3C(O)C4C(N(C)C)C(O)=C(C(N)=O)C(=O)C4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-UHFFFAOYSA-N 0.000 abstract description 6
- 239000012445 acidic reagent Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000005352 clarification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000000022 bacteriostatic agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/015—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/22—Separation; Purification; Stabilisation; Use of additives
- C07C231/24—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extraction Or Liquid Replacement (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention discloses an extraction and acidification device for oxytetracycline production, which relates to the field of oxytetracycline production and comprises a barrel body, wherein an acidification cavity is formed in the barrel body, mixing mechanisms are arranged on two sides of the acidification cavity respectively, a filtering mechanism is arranged in the acidification cavity, each mixing mechanism comprises a plurality of fixed guide frames, a contraction screw rod is rotatably connected in each fixed guide frame, the end part of each contraction screw rod is fixedly connected with a contraction motor, a contraction nut is connected to the surface of each contraction screw rod through threads, and the bottom end of each contraction nut is fixedly connected with a movable support. According to the invention, the mixing motor drives the mixing rod to rotate, mother liquor is stirred and mixed, the mixing speed is accelerated, after mixing and acidification, the shrinkage motor shrinks the mixing rod to avoid obstruction during filtration, and then the filtration motor drives the filter screen to ascend, so that acidified mother liquor is effectively filtered, clarified mother liquor is obtained, and the acidification extraction efficiency is effectively improved.
Description
Technical Field
The invention relates to the field of terramycin production, in particular to an extraction and acidification device for terramycin production.
Background
The terramycin has the function of broad-spectrum pathogenic microorganism resistance, is a quick bacteriostatic agent, has the bactericidal effect on certain bacteria at high concentration, and needs to be acidified in the production and extraction process of the terramycin so as to adjust the pH value of the terramycin mother liquor to be acidic and facilitate the subsequent processes.
In the prior art, after the oxytetracycline mother liquor is acidified, an acidic reagent and the oxytetracycline mother liquor are mixed slowly, so that the acidification time is long, the acidification efficiency is reduced, other substances are separated out after acidification, and clear mother liquor is difficult to obtain.
Therefore, it is necessary to invent an extraction acidification device for producing terramycin to solve the above problems.
Disclosure of Invention
The invention aims to provide an extraction and acidification device for terramycin production, which aims to solve the problems of low acidification efficiency and difficult obtaining of clarified mother liquor in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the extraction and acidification device for producing the oxytetracycline comprises a barrel body, wherein an acidification cavity is formed in the barrel body, mixing mechanisms are arranged on two sides of the acidification cavity, and a filtering mechanism is arranged in the acidification cavity;
the mixing mechanism comprises a plurality of fixed guide frames, a contraction screw rod is rotatably connected in each of the fixed guide frames, a contraction motor is fixedly connected at the end part of the contraction screw rod, a contraction nut is connected to the surface of the contraction screw rod in a threaded manner, a movable support is fixedly connected to the bottom end of the contraction nut, a mixing motor is fixedly mounted on one side of the movable support, a mixing rod is fixedly connected at the end part of an output shaft of the mixing motor, a plurality of accommodating grooves are formed in the surface of the mixing rod, movable rods are rotatably connected in the accommodating grooves, synchronous connecting rods are rotatably connected among the movable rods on the same side, and reset springs are fixedly connected between the movable rods and the inner walls of the accommodating grooves;
the filtering mechanism comprises a supporting vertical frame, a filtering lead screw is connected to the supporting vertical frame in a rotating mode, a filtering nut is connected to the surface of the filtering lead screw in a threaded mode, a plurality of connecting blocks and a plurality of filtering nut outer wall fixed surfaces are fixedly connected with a filtering net, and a filtering motor is fixedly connected to the top end of the filtering lead screw.
Preferably, the fixed guide frame is obliquely arranged on the side surface of the barrel body, a plurality of mounting grooves are formed in the side surface of the barrel body, and the fixed guide frame is arranged in the mounting grooves and can be matched with the mounting grooves to fold the movable rod.
Preferably, the one end fixedly connected with of removal support is kept away from to the mixing rod seals the piece, mounting groove and sealed piece phase-match can prevent that inside mother liquor from flowing out.
Preferably, a plurality of fluid-discharge ports are formed in the bottom of the barrel body, and a fluid-discharge pipe is fixedly connected to the bottom end of each fluid-discharge port and can discharge filtered clarified mother liquor from the lower part.
Preferably, a switch valve is arranged on the liquid discharge pipe, so that the switch of the liquid discharge pipe is conveniently controlled.
Preferably, a plurality of clean mouths have been seted up at the staving top, and is a plurality of clean mouthful internally mounted has the closed door, can conveniently clean the filter screen.
Preferably, the closed door is provided with a feeding pipe, and the acidic reagent and the mother liquor can be added into the closed door.
The invention has the technical effects and advantages that:
1. the mixing rod is driven to rotate by the mixing motor, the plurality of movable rods are driven to rotate by the rotation of the mixing rod, mother liquor is stirred and mixed, the mixing speed is accelerated, after mixing and acidification, the mixing rod is contracted by the contraction motor, so that the obstruction caused during filtration is avoided, and then the filter motor drives the filter screen to ascend, so that the acidified mother liquor is effectively filtered, clarified mother liquor is obtained, and the acidification extraction efficiency is effectively improved;
2. through setting up clean mouthful, the sealed door on the clean mouthful can prevent that the pollutant from falling into staving inside to clean mouthful can conveniently clean the filter screen, improves the convenience of using.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the mixing mechanism of the present invention.
Fig. 3 is an enlarged view of the structure a in fig. 2 according to the present invention.
Fig. 4 is a schematic view of a connection structure of the filter nut and the filter screen according to the present invention.
In the figure: 1. a barrel body; 2. an acidification cavity; 3. a mixing mechanism; 4. a filtering mechanism; 5. fixing a guide frame; 6. shrinking the screw rod; 7. a retracting motor; 8. shrinking the nut; 9. moving the support; 10. a hybrid motor; 11. a mixing rod; 12. a receiving groove; 13. a movable rod; 14. a synchronous connecting rod; 15. a return spring; 16. a support stand; 17. filtering the screw rod; 18. a filter nut; 19. connecting blocks; 20. a filter screen; 21. a filter motor; 22. a liquid discharge pipe; 23. an on-off valve; 24. cleaning the mouth; 25. a closing door; 26. a feed tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The invention provides an extraction and acidification device for oxytetracycline production, which comprises a barrel body 1, wherein an acidification cavity 2 is formed in the barrel body 1, mixing mechanisms 3 are arranged on two sides of the acidification cavity 2, a filtering mechanism 4 is arranged in the acidification cavity 2, the mixing speed can be increased through the mixing mechanisms 3, and then the filtering mechanism 4 is used for filtering mother liquor to obtain clarified mother liquor;
secondly, the mixing mechanism 3 comprises a plurality of fixed guide frames 5, the fixed guide frames 5 are obliquely arranged on the side surface of the barrel body 1, a plurality of mounting grooves are formed in the side surface of the barrel body 1, the fixed guide frames 5 are mounted inside the mounting grooves and can be matched with the mounting grooves to fold the movable rod 13, a plurality of fixed guide frames 5 are rotatably connected inside shrinkage lead screws 6, the end parts of the shrinkage lead screws 6 are fixedly connected with shrinkage motors 7, the surfaces of the shrinkage lead screws 6 are in threaded connection with shrinkage nuts 8, the bottom ends of the shrinkage nuts 8 are fixedly connected with moving supports 9, and the output shafts of the shrinkage motors 7 can rotate to drive the shrinkage nuts 8 to move, so that the moving supports 9 can be driven to move, the mixing rod 11 can be shrunk, and obstruction caused during filtering;
then, a mixing motor 10 is fixedly installed on one side of the movable support 9, a mixing rod 11 is fixedly connected to the end portion of an output shaft of the mixing motor 10, a sealing block is fixedly connected to one end, away from the movable support 9, of the mixing rod 11, the installation groove is matched with the sealing block and can prevent the outflow of the internal mother liquor, a plurality of accommodating grooves 12 are formed in the surface of the mixing rod 11, a plurality of movable rods 13 are rotatably connected to the insides of the accommodating grooves 12, a synchronous connecting rod 14 is rotatably connected between the plurality of movable rods 13 on the same side, the synchronous connecting rod 14 enables the movable rods 13 on the same side to synchronously move, a return spring 15 is fixedly connected between the inner walls of the movable rods 13 and the accommodating grooves 12 and can reset the movable rods 13, the mixing rod 11 can be driven to rotate by the rotation of the output shaft of the mixing motor 10, the mixing rod 11 can, stirring and mixing the mother liquor to accelerate the mixing rate;
finally, filtering mechanism 4 is including supporting grudging post 16, it is connected with filter lead screw 17 to support 16 internal rotations of grudging post, filter lead screw 17 surface threaded connection has filter nut 18, filter 18 outer wall fixed surface of nut is connected with a plurality of connecting blocks 19, and is a plurality of 19 tip fixedly connected with filter screens 20 of connecting block, filter lead screw 17 top fixedly connected with filter motor 21, pack up the back with mixing rod 11, filter motor 21 output shaft rotates and drives filter lead screw 17 and rotate, filters lead screw 17 and rotates and drive filter nut 18 and remove, and filter nut 18 removes and drives filter screen 20 and rise to mother liquor after the acidizing filters.
As shown in fig. 1, a plurality of leakage fluid dram, a plurality of have been seted up to staving 1 bottom the leakage fluid dram bottom fixedly connected with 22 can be discharged from the below through filterable clarification mother liquor, install ooff valve 23 on the leakage fluid dram 22, conveniently control the switch of leakage fluid dram 22, a plurality of clean mouthful 24 have been seted up at staving 1 top, and is a plurality of clean mouthful 24 internally mounted has a closed door 25, can conveniently clean filter screen 20, install filling tube 26 on the closed door 25, can add acidic reagent and mother liquor to inside.
The working principle of the invention is as follows:
when the device is actually used, mother liquor and an acidic reagent are added into the acidification cavity 2 through the feeding pipe 26, then the mixing motor 10 is started, the output shaft of the mixing motor 10 rotates to drive the mixing rod 11 to rotate, the mixing rod 11 rotates to drive the movable rods 13 to rotate, the mother liquor is stirred and mixed, and the mixing speed is accelerated;
after mixing the acidizing, shrink 7 output shafts rotate and drive shrink nut 8 and remove, thereby can drive movable support 9 and remove, carry out the shrink to mixing rod 11, movable rod 13 on the mixing rod 11 draws in under the effect of mounting groove, avoid causing the hindrance when filtering, then filter motor 21 output shafts and rotate and drive and filter lead screw 17 and rotate, it drives filter nut 18 and remove to filter lead screw 17 rotation, filter nut 18 removes and drives filter screen 20 and rise, thereby the mother liquor after the acidizing effectively filters, obtain the clarification mother liquor.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. A extract acidizing device for terramycin production which characterized in that: the device comprises a barrel body (1), wherein an acidification cavity (2) is formed in the barrel body (1), mixing mechanisms (3) are arranged on two sides of the acidification cavity (2), and a filtering mechanism (4) is arranged in the acidification cavity (2);
the mixing mechanism (3) comprises a plurality of fixed guide frames (5), the plurality of fixed guide frames (5) are all rotatably connected with a shrinkage screw rod (6), the end part of the shrinkage screw rod (6) is fixedly connected with a shrinkage motor (7), the surface of the shrinkage screw rod (6) is in threaded connection with a shrinkage nut (8), the bottom end of the shrinkage nut (8) is fixedly connected with a movable bracket (9), one side of the movable bracket (9) is fixedly provided with a hybrid motor (10), the end part of the output shaft of the mixing motor (10) is fixedly connected with a mixing rod (11), a plurality of accommodating grooves (12) are formed in the surface of the mixing rod (11), movable rods (13) are rotatably connected inside the accommodating grooves (12), synchronous connecting rods (14) are rotatably connected among the movable rods (13) on the same side, a return spring (15) is fixedly connected between the movable rod (13) and the inner wall of the accommodating groove (12);
filtering mechanism (4) is including supporting grudging post (16), it is connected with filter screw rod (17) to support grudging post (16) inside rotation, filter screw rod (17) surface threaded connection has filter nut (18), it is a plurality of connecting blocks (19) of filter nut (18) outer wall fixed surface connection, a plurality of connecting block (19) tip fixedly connected with filter screen (20), filter screw rod (17) top fixedly connected with filters motor (21).
2. The extraction acidification device for terramycin production according to claim 1, characterized in that: the fixed guide frame (5) is obliquely arranged on the side surface of the barrel body (1), a plurality of mounting grooves are formed in the side surface of the barrel body (1), and the fixed guide frame (5) is arranged inside the mounting grooves.
3. The extraction acidification device for terramycin production according to claim 2, characterized in that: the one end fixedly connected with of removal support (9) is kept away from in hybrid pole (11) seals the piece, mounting groove and sealed piece phase-match.
4. The extraction acidification device for terramycin production according to claim 1, characterized in that: a plurality of liquid discharge ports are formed in the bottom of the barrel body (1), and a liquid discharge pipe (22) is fixedly connected to the bottom ends of the liquid discharge ports.
5. The extraction acidification device for terramycin production according to claim 4, characterized in that: and a switch valve (23) is arranged on the liquid discharge pipe (22).
6. The extraction acidification device for terramycin production according to claim 1, characterized in that: a plurality of cleaning openings (24) are formed in the top of the barrel body (1), and a sealing door (25) is installed inside the cleaning openings (24).
7. The extraction acidification device for terramycin production according to claim 6, characterized in that: and a feeding pipe (26) is arranged on the closed door (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596789.3A CN112808206B (en) | 2020-12-29 | 2020-12-29 | Extraction acidification device for terramycin production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596789.3A CN112808206B (en) | 2020-12-29 | 2020-12-29 | Extraction acidification device for terramycin production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112808206A true CN112808206A (en) | 2021-05-18 |
| CN112808206B CN112808206B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011596789.3A Active CN112808206B (en) | 2020-12-29 | 2020-12-29 | Extraction acidification device for terramycin production |
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| Country | Link |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0392340A2 (en) * | 1989-04-08 | 1990-10-17 | SCHOTTEN, Alfons | Press filter |
| GB9909630D0 (en) * | 1999-04-28 | 1999-06-23 | Zeneca Ltd | Reactor |
| CN106345382A (en) * | 2016-11-18 | 2017-01-25 | 广西大学 | Liquid discharge type reaction kettle |
| CN206342962U (en) * | 2016-11-23 | 2017-07-21 | 新沂市华洋金属制品有限公司 | A kind of sandstone pulp-water device for effectively separating for building |
| CN207169705U (en) * | 2017-07-27 | 2018-04-03 | 上海邦高化学有限公司 | A kind of reactor |
| CN208679093U (en) * | 2018-07-30 | 2019-04-02 | 天津华茂博源科技发展有限公司 | A kind of polymers multi-level filtering reaction kettle |
| CN111153535A (en) * | 2020-01-19 | 2020-05-15 | 武汉市新华印刷有限责任公司 | Developing machine dashes version effluent disposal system |
| CN211612667U (en) * | 2019-11-15 | 2020-10-02 | 成都翊昂科技有限公司 | Adhesive reation kettle's ejection of compact filter equipment |
| CN211784719U (en) * | 2020-03-17 | 2020-10-27 | 西南林业大学 | Heavy metal exceeds standard quick detection device in wild domestic fungus |
| CN212067950U (en) * | 2019-11-29 | 2020-12-04 | 河北轩邦无纺布有限公司 | Antistatic non-woven fabrics heating filter equipment |
| CN112090157A (en) * | 2020-10-11 | 2020-12-18 | 常德云港生物科技有限公司 | Separation equipment for deoxycholic acid waste mother liquor |
| CN214288193U (en) * | 2020-12-29 | 2021-09-28 | 大同同星抗生素有限责任公司 | A draw acidizing device for terramycin production |
-
2020
- 2020-12-29 CN CN202011596789.3A patent/CN112808206B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0392340A2 (en) * | 1989-04-08 | 1990-10-17 | SCHOTTEN, Alfons | Press filter |
| GB9909630D0 (en) * | 1999-04-28 | 1999-06-23 | Zeneca Ltd | Reactor |
| CN106345382A (en) * | 2016-11-18 | 2017-01-25 | 广西大学 | Liquid discharge type reaction kettle |
| CN206342962U (en) * | 2016-11-23 | 2017-07-21 | 新沂市华洋金属制品有限公司 | A kind of sandstone pulp-water device for effectively separating for building |
| CN207169705U (en) * | 2017-07-27 | 2018-04-03 | 上海邦高化学有限公司 | A kind of reactor |
| CN208679093U (en) * | 2018-07-30 | 2019-04-02 | 天津华茂博源科技发展有限公司 | A kind of polymers multi-level filtering reaction kettle |
| CN211612667U (en) * | 2019-11-15 | 2020-10-02 | 成都翊昂科技有限公司 | Adhesive reation kettle's ejection of compact filter equipment |
| CN212067950U (en) * | 2019-11-29 | 2020-12-04 | 河北轩邦无纺布有限公司 | Antistatic non-woven fabrics heating filter equipment |
| CN111153535A (en) * | 2020-01-19 | 2020-05-15 | 武汉市新华印刷有限责任公司 | Developing machine dashes version effluent disposal system |
| CN211784719U (en) * | 2020-03-17 | 2020-10-27 | 西南林业大学 | Heavy metal exceeds standard quick detection device in wild domestic fungus |
| CN112090157A (en) * | 2020-10-11 | 2020-12-18 | 常德云港生物科技有限公司 | Separation equipment for deoxycholic acid waste mother liquor |
| CN214288193U (en) * | 2020-12-29 | 2021-09-28 | 大同同星抗生素有限责任公司 | A draw acidizing device for terramycin production |
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| CN112808206B (en) | 2023-10-31 |
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