CN112973606B - Stirring device for preparing 5-fluoro-2-hydroxyacetophenone - Google Patents
Stirring device for preparing 5-fluoro-2-hydroxyacetophenone Download PDFInfo
- Publication number
- CN112973606B CN112973606B CN202110316189.5A CN202110316189A CN112973606B CN 112973606 B CN112973606 B CN 112973606B CN 202110316189 A CN202110316189 A CN 202110316189A CN 112973606 B CN112973606 B CN 112973606B
- Authority
- CN
- China
- Prior art keywords
- stirring
- absorption tower
- side wall
- acid gas
- fluoro
- 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.)
- Active
Links
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
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
Abstract
The embodiment of the invention relates to the technical field of chemical synthesis, in particular to a stirring device for preparing 5-fluoro-2-hydroxyacetophenone, which comprises a bracket and a tank body arranged on the bracket, wherein a stirring mechanism is arranged in the tank body, an exhaust port is arranged at the top of the tank body and is connected with an acid gas treatment mechanism through a connecting pipe, and the acid gas treatment mechanism comprises an absorption tower and a gas choking component arranged in the absorption tower and used for prolonging the residence time of acid gas. The embodiment of the invention has the beneficial effects that: the invention has simple structure and convenient use, and the gas choke assembly is arranged in the absorption tower, so that the detention time of acid gas in the absorption tower is prolonged, and alkaline liquid contained in the absorption tower fully absorbs and treats the gas entering the absorption tower, thereby being more environment-friendly.
Description
Technical Field
The invention relates to the technical field, in particular to a stirring device for preparing 5-fluoro-2-hydroxyacetophenone.
Background
The 5-fluoro-2-hydroxyacetophenone alias 2-acetyl-4-fluorophenol is an important medical intermediate, can be used as a synthesis intermediate of various beta receptor blockers, and has wide market prospect. The existing preparation method is to take p-fluorophenol as a raw material, carry out hydroxyl acylation, and then adopt Fries rearrangement to synthesize the p-fluorophenol. The synthesis of the raw materials by the method is expensive, and particularly the fluorine atom on the aromatic ring is a strong electron withdrawing group, which can have a great influence on the acylation and rearrangement yields. In the preparation process of the 5-fluoro-2-hydroxyacetophenone, a stirring device is needed, the stirring device has a heating function, and a large amount of acid gas is discharged in the reaction process. However, the existing stirring device lacks a function of treating acid gas, and the acid gas is directly discharged into the air, so that the environment is polluted, and the physical health of staff is damaged. Therefore, there is a need for a stirring device for preparing 5-fluoro-2-hydroxyacetophenone to overcome the above problems.
Disclosure of Invention
In order to solve the problems, the embodiment of the invention provides a stirring device for preparing 5-fluoro-2-hydroxyacetophenone.
The purpose of the invention is realized in the following way:
the utility model provides a stirring device for 5-fluoro-2-hydroxyacetophenone preparation, includes the support and set up in jar body on the support, be equipped with rabbling mechanism in the jar body, the top of jar body is equipped with the gas vent, the acid gas processing mechanism is connected through the connecting pipe to the gas vent, acid gas processing mechanism include the absorption tower, set up in be used for prolonging acid gas residence time's gas choked flow subassembly in the absorption tower.
Preferably, the gas flow blocking assembly comprises a plurality of central flow blocking assemblies and a plurality of edge flow blocking assemblies which are uniformly arranged in the absorption tower along the vertical direction and are arranged at intervals in a crossing way.
Preferably, the central choke assembly comprises a connecting annular plate arranged along the horizontal direction, a central sealing plate arranged at the top of the connecting annular plate and used for sealing a central annular hole of the connecting annular plate, and a plurality of peripheral connecting sheets uniformly arranged at the bottom edge of the connecting annular plate and connected with the inner side wall of the absorption tower.
Preferably, the edge flow blocking assembly comprises a conical barrel arranged along the horizontal direction, the diameter of the top opening of the conical barrel is larger than that of the bottom opening of the conical barrel, a plurality of side wall connecting pieces are uniformly arranged on the outer side wall of the conical barrel, and the diameter of the top opening of the conical barrel is not larger than the outer diameter of the connecting ring plate.
Preferably, the top of the central choke assembly positioned at the highest position is provided with a buffer cylinder, the side wall of the buffer cylinder is provided with a liquid discharge pipe penetrating through the side wall of the absorption tower, the bottom of the side wall of the absorption tower is provided with a liquid inlet pipe, and the buffer cylinder is arranged at the top of the central sealing plate along the vertical direction.
Preferably, the bottom of the side wall of the absorption tower is provided with an air inlet elbow, the air inlet elbow comprises a horizontal pipe section penetrating through the side wall of the absorption tower along the horizontal direction, and a vertical pipe section which is connected with one end of the horizontal pipe section in the absorption tower and is arranged along the vertical direction, and the horizontal pipe section is connected with the connecting pipe.
Preferably, the top of vertical pipeline section is equipped with the vortex subassembly, the vortex subassembly including evenly set up in a plurality of connecting rods of the top edge of vertical pipeline section, set up in the spoiler at the top of connecting rod.
Preferably, the method comprises the steps of, the stirring mechanism comprises a stirring assembly arranged in the tank body along the horizontal direction and a driving piece which is arranged on the bracket and used for driving the stirring assembly to rotate by taking the central axis as the center.
Preferably, the stirring assembly comprises a stirring shaft penetrating through the side wall of the tank body in a horizontal direction and rotating, a plurality of stirring She Goujian which are detachably arranged on the stirring shaft and perpendicular to the stirring shaft, and the stirring She Goujian comprises a stirring rod detachably connected with the stirring shaft and a stirring blade arranged on one end of the stirring shaft, wherein the stirring blade is far away from the stirring rod.
Preferably, the stirring shaft is uniformly provided with a plurality of mounting grooves, the inner side wall of each mounting groove is provided with internal threads, and the end part of the stirring rod is provided with external threads matched with the internal threads.
The embodiment of the invention has the beneficial effects that:
1. the invention has simple structure and convenient use, and the gas choke assembly is arranged in the absorption tower, so that the detention time of acid gas in the absorption tower is prolonged, and alkaline liquid contained in the absorption tower fully absorbs and treats the gas entering the absorption tower, thereby being more environment-friendly;
2. the gas flow blocking assembly comprises a plurality of central flow blocking assemblies and a plurality of edge flow blocking assemblies which are uniformly arranged in the absorption tower along the vertical direction and are arranged at intervals in a crossing way, and the flow path of gas in the absorption tower is prolonged, so that the aim of prolonging the residence time of acid gas in the absorption tower is fulfilled, and the effect is stable and reliable;
3. the stirring shaft is detachably connected with the stirring rod, so that the stirring rod is convenient to assemble and disassemble, the quantity of the stirring rods arranged on the stirring shaft is changed according to actual needs, and cleaning, replacement and maintenance are facilitated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a first center choke assembly of the present invention;
FIG. 3 is a bottom view of FIG. 2;
FIG. 4 is a schematic view of a first edge dam assembly according to the present invention;
FIG. 5 is a bottom view of FIG. 4;
FIG. 6 is a perspective view of FIG. 4;
in the figure: 1. a bracket; 2. a tank body; 3. a connecting pipe; 4. an absorption tower; 5. a central choke assembly; 501. connecting the annular plates; 502. a center sealing plate; 503. a peripheral connecting piece; 6. an edge choke assembly; 601. a conical cylinder; 602. a side wall connecting piece; 7. a buffer tube; 8. a liquid discharge pipe; 9. a liquid inlet pipe; 10. an exhaust port; 11. an air inlet elbow; 12. a connecting rod; 13. a spoiler; 14. a closing cap; 15. a discharge port; 16. a stirring shaft; 17. a stirring rod; 18. stirring blades; 19. a mounting frame; 20. a speed reducer; 21. a motor; 22. a coupling; 23. and a bearing seat.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
Example 1
As shown in figures 1-6, the stirring device for preparing the 5-fluoro-2-hydroxyacetophenone comprises a bracket 1 and a tank body 2 arranged on the bracket 1, wherein a stirring mechanism is arranged in the tank body 2. The stirring mechanism comprises a stirring assembly arranged in the tank body 2 along the horizontal direction and a driving piece which is arranged on the bracket 1 and used for driving the stirring assembly to rotate around the central axis of the stirring assembly. The right side wall of the bracket 1 is provided with a mounting frame 19, a driving piece is arranged on the top of the mounting frame 19, and the driving piece comprises a motor 21 and a speed reducer 20 which are in transmission connection. The stirring assembly comprises a stirring shaft 16 rotatably installed through the side wall of the tank body 2 in the horizontal direction, and a plurality of stirring She Goujian detachably installed on the stirring shaft 16 and perpendicular to the stirring shaft 16. The stirring shaft 16 is rotatably connected with the tank body 2 through a bearing, the left end and the right end of the top of the bracket 1 are provided with bearing seats 23, and the stirring shaft 16 is connected with the bearing seats 23. The right end of the stirring shaft 16 is in transmission connection with an output shaft of a motor 21 speed reducer 20 through a coupler 22. The stirring She Goujian comprises a stirring rod 17 detachably connected with the stirring shaft 16 and a stirring blade 18 welded at one end of the stirring rod 17 away from the stirring shaft 16. A plurality of mounting grooves are uniformly formed in the stirring shaft 16, internal threads are formed in the inner side walls of the mounting grooves, external threads matched with the internal threads are formed in the end portions of the stirring rods 17, the stirring shaft 16 and the stirring rods 17 are convenient to assemble and disassemble in a threaded connection mode, the number of the stirring rods 17 mounted on the stirring shaft 16 is convenient to change according to actual needs, and cleaning, replacement and maintenance are convenient. The bottom of the tank body 2 is provided with a discharge opening 15, a valve is arranged on the discharge opening 15, the top of the tank body 2 is provided with a feed inlet, and the feed inlet is provided with a sealing cover 14. A heating mechanism (not shown in the figure) is also installed outside the tank body 2, and the heating mechanism is in the prior art and is not described here again.
An exhaust port 10 is formed in the top of the tank body 2, and the exhaust port 10 is connected with an acid gas treatment mechanism through a connecting pipe 3. The air inlet elbow 11 is installed to the lateral wall bottom of absorption tower 4, and air inlet elbow 11 includes the horizontal pipe section that runs through the lateral wall of absorption tower 4 along the horizontal direction, and with the vertical pipe section that one end connection that horizontal pipe section is located absorption tower 4 just arranges along the vertical direction, horizontal pipe section is connected with connecting pipe 3. The spoiler assembly is installed at the top of vertical pipeline section, and the spoiler assembly includes a plurality of connecting rods 12 of evenly installing at the top edge of vertical pipeline section, installs the spoiler 13 at the top of connecting rod 12. The acid gas formed in the tank body 2 enters the air inlet bent pipe 11 through the air outlet 10 and the connecting pipe 3, is blocked by the spoiler 13, is dispersed to the periphery, fully contacts with the alkaline liquid contained in the absorption tower 4, and is favorable for absorbing and treating the acid gas by the alkaline liquid.
The acid gas treatment mechanism comprises an absorption tower 4 and a gas choking component which is arranged in the absorption tower 4 and used for prolonging the residence time of the acid gas. The gas flow blocking assembly comprises a plurality of central flow blocking assemblies 5 and edge flow blocking assemblies 6 which are uniformly arranged in the absorption tower 4 along the vertical direction and are arranged at intervals in a crossing way. A total of five center choke assemblies 5 and five edge choke assemblies 6. A central choke assembly 5 is mounted above each edge choke assembly 6. The central choke assembly 5 comprises a connecting ring plate 501 installed in the horizontal direction, a central sealing plate 502 welded on the top of the connecting ring plate 501 and used for sealing a central annular hole of the connecting ring plate 501, and a plurality of peripheral connecting pieces 503 uniformly welded on the bottom edge of the connecting ring plate 501 and welded with the inner side wall of the absorption tower 4. The edge choke assembly 6 comprises a conical cylinder 601 installed along the horizontal direction, the diameter of the top opening of the conical cylinder 601 is larger than that of the bottom opening of the conical cylinder, a plurality of side wall connecting pieces 602 are uniformly welded on the outer side wall of the conical cylinder 601, and the diameter of the top opening of the conical cylinder 601 is not larger than that of the outer diameter of the connecting ring plate 501. The acid gas entering the absorption tower 4 upwards passes through the conical cylinder 601, collides on the connecting ring plate 501 and the central sealing plate 502, is blocked, is scattered to the periphery, passes through the space between adjacent peripheral connecting plates 503, continues to upwards flow, passes through the next conical cylinder 601 for a plurality of times, prolongs the flow path of the acid gas in the absorption tower 4, thereby achieving the purpose of prolonging the residence time of the acid gas in the absorption tower 4, ensuring stable and reliable effect, and ensuring that the alkaline liquid contained in the absorption tower 4 fully absorbs and treats the gas entering the absorption tower 4, and being more environment-friendly.
The top welding of the central choke subassembly 5 that is located the highest has a buffer tube 7, and the top at central shrouding 502 is welded along vertical direction to a buffer tube 7, runs through the welding on the lateral wall of buffer tube 7 has the fluid-discharge tube 8 that runs through the lateral wall of absorption tower 4, and the lateral wall bottom of absorption tower 4 runs through the welding has feed liquor pipe 9 for in the absorption tower 4 is flowed into from feed liquor pipe 9 to the alkaline liquid of handling acid gas, flows out absorption tower 4 through fluid-discharge tube 8 after flooding buffer tube 7 again, can be convenient renew the alkaline liquid in the absorption tower 4, guarantees that the absorption, handling effect is good all the time.
It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.
Claims (4)
1. The utility model provides a stirring device for 5-fluoro-2-hydroxyacetophenone preparation, include the support with set up in jar body on the support, be equipped with rabbling mechanism in the jar body, its characterized in that: the top of the tank body is provided with an exhaust port, the exhaust port is connected with an acid gas treatment mechanism through a connecting pipe, and the acid gas treatment mechanism comprises an absorption tower and a gas choked flow component which is arranged in the absorption tower and is used for prolonging the residence time of acid gas;
the gas flow blocking assemblies comprise a plurality of center flow blocking assemblies and a plurality of edge flow blocking assemblies which are uniformly arranged in the absorption tower along the vertical direction and are arranged at intervals in a crossing way;
the central flow blocking assembly comprises a connecting annular plate arranged along the horizontal direction, a central sealing plate arranged at the top of the connecting annular plate and used for sealing a central annular hole of the connecting annular plate, and a plurality of peripheral connecting sheets uniformly arranged at the bottom edge of the connecting annular plate and connected with the inner side wall of the absorption tower;
the edge flow blocking assembly comprises a conical barrel arranged along the horizontal direction, the diameter of the top opening of the conical barrel is larger than that of the bottom opening of the conical barrel, a plurality of side wall connecting pieces are uniformly arranged on the outer side wall of the conical barrel, and the diameter of the top opening of the conical barrel is not larger than the outer diameter of the connecting ring plate;
the top of the central flow blocking component at the highest position is provided with a buffer cylinder, the side wall of the buffer cylinder is provided with a liquid discharge pipe penetrating through the side wall of the absorption tower, the bottom of the side wall of the absorption tower is provided with a liquid inlet pipe, and the buffer cylinder is arranged at the top of the central sealing plate along the vertical direction;
the bottom of the side wall of the absorption tower is provided with an air inlet bent pipe, the air inlet bent pipe comprises a horizontal pipe section penetrating through the side wall of the absorption tower along the horizontal direction and a vertical pipe section which is connected with one end part of the horizontal pipe section positioned in the absorption tower and is arranged along the vertical direction, and the horizontal pipe section is connected with the connecting pipe;
the top of vertical pipeline section is equipped with the vortex subassembly, the vortex subassembly including evenly set up in a plurality of connecting rods of the top edge of vertical pipeline section, set up in the spoiler at the top of connecting rod.
2. The stirring device for preparing 5-fluoro-2-hydroxyacetophenone according to claim 1, characterized in that: the stirring mechanism comprises a stirring assembly arranged in the tank body along the horizontal direction and a driving piece which is arranged on the bracket and used for driving the stirring assembly to rotate by taking the central axis as the center.
3. The stirring device for preparing 5-fluoro-2-hydroxyacetophenone according to claim 2, characterized in that: the stirring assembly comprises a stirring shaft which penetrates through the side wall of the tank body in a rotating mode in the horizontal direction, a plurality of stirring She Goujian which are detachably arranged on the stirring shaft and perpendicular to the stirring shaft, and stirring She Goujian comprises a stirring rod which is detachably connected with the stirring shaft and a stirring blade which is arranged on the stirring rod and away from one end of the stirring shaft.
4. The stirring device for preparing 5-fluoro-2-hydroxyacetophenone according to claim 3, wherein: a plurality of mounting grooves are uniformly formed in the stirring shaft, internal threads are formed in the inner side walls of the mounting grooves, and external threads matched with the internal threads are formed in the end portions of the stirring rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316189.5A CN112973606B (en) | 2021-03-24 | 2021-03-24 | Stirring device for preparing 5-fluoro-2-hydroxyacetophenone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316189.5A CN112973606B (en) | 2021-03-24 | 2021-03-24 | Stirring device for preparing 5-fluoro-2-hydroxyacetophenone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112973606A CN112973606A (en) | 2021-06-18 |
| CN112973606B true CN112973606B (en) | 2023-07-07 |
Family
ID=76333475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110316189.5A Active CN112973606B (en) | 2021-03-24 | 2021-03-24 | Stirring device for preparing 5-fluoro-2-hydroxyacetophenone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112973606B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214020021U (en) * | 2020-11-30 | 2021-08-24 | 江苏三一环境科技有限公司 | Plate-type absorption tower and waste gas treatment device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148697A (en) * | 2015-08-21 | 2015-12-16 | 南京白云化工环境监测有限公司 | Flue gas desulfurization and denitrification system |
| CN205517745U (en) * | 2016-03-28 | 2016-08-31 | 江苏万隆化学有限公司 | A energy -concerving and environment -protective type acylation reaction device for preparing benzophenone class compound |
| CN108404628A (en) * | 2017-02-09 | 2018-08-17 | 河北龙泽科技开发有限公司 | Boiler flue gas desulfurization system |
| CN107158901A (en) * | 2017-05-31 | 2017-09-15 | 海盐建盛五金制品有限公司 | A kind of waste gas cleaning system and its method |
| CN107930357A (en) * | 2017-11-23 | 2018-04-20 | 江苏华新环保设备科技有限公司 | Vertical vortex tower |
| CN208716870U (en) * | 2018-07-03 | 2019-04-09 | 天津辰创环境工程科技有限责任公司 | A kind of device handling thionyl chloride waste liquid |
| CN209204984U (en) * | 2018-10-20 | 2019-08-06 | 富瑞德化工设备(武汉)有限公司 | A kind of high-efficiency swirl-type FGD by spraying mist tower |
| CN109126432B (en) * | 2018-11-05 | 2020-08-18 | 山东海嘉石油化工有限公司 | High-efficient desulfurization absorption tower |
| CN209443068U (en) * | 2019-01-17 | 2019-09-27 | 辽宁科技学院 | A kind of multi-purpose tower of hydrometallurgy chemical industry |
-
2021
- 2021-03-24 CN CN202110316189.5A patent/CN112973606B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214020021U (en) * | 2020-11-30 | 2021-08-24 | 江苏三一环境科技有限公司 | Plate-type absorption tower and waste gas treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112973606A (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206886788U (en) | High-efficiency spiral labyrinth type sewage disposal system | |
| CN112973606B (en) | Stirring device for preparing 5-fluoro-2-hydroxyacetophenone | |
| CN114618341B (en) | Sewage deodorization equipment for animal manure pretreatment | |
| CN109330867B (en) | Convenient fumigating device for gynecological nursing | |
| CN116608528A (en) | Ventilation unit that laboratory used | |
| CN219770691U (en) | Metallic paint strorage device | |
| CN109046205A (en) | A kind of chemical industry mixed reaction vessel separating flow-disturbing | |
| CN112774445B (en) | Rod floating ball type gas-liquid separation ultrafiltration membrane component | |
| CN205627936U (en) | Open reation kettle of glass is warded off to controllable type | |
| CN209985141U (en) | Bottom gas device of dispersion tower | |
| CN211706774U (en) | Reaction kettle capable of stirring uniformly | |
| CN113045398A (en) | Preparation process of 5-fluoro-2-hydroxyacetophenone | |
| CN211025644U (en) | Whirl tower convenient to change whirl board | |
| CN114588697A (en) | Filter device | |
| CN215962832U (en) | Activated carbon fiber organic waste gas purifier | |
| CN213590437U (en) | Reaction device with automatic stirring function | |
| CN110563131A (en) | MBR membrane aerator, MBR membrane aeration device and MBR membrane sewage treatment equipment | |
| CN213514082U (en) | Vertical gas collecting tank for heating ventilation air conditioning system | |
| CN210699039U (en) | Disinfectant exempts from to shut down filter equipment | |
| CN213332392U (en) | Self-operated balance electric regulating valve | |
| CN218174741U (en) | MBBR (moving bed biofilm reactor) aeration type reaction tank | |
| CN215087105U (en) | Reaction kettle | |
| CN220467713U (en) | Self-cleaning type anti-blocking water outlet device for MBBR (moving bed biofilm reactor) tank | |
| CN219526423U (en) | Oil-water separation assembly for sewage treatment | |
| CN215559546U (en) | Basalt fiber micro-power sewage treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |