CN106475021A - A kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit - Google Patents
A kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit Download PDFInfo
- Publication number
- CN106475021A CN106475021A CN201611228580.5A CN201611228580A CN106475021A CN 106475021 A CN106475021 A CN 106475021A CN 201611228580 A CN201611228580 A CN 201611228580A CN 106475021 A CN106475021 A CN 106475021A
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- Prior art keywords
- gas
- tank body
- rotating shaft
- pipe
- connecting joint
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Classifications
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- 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
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit, including tank body and Shang Gai, described tank body upper end periphery is provided with the side of prolonging of annular, and described upper lid is bolted to the prolonging on side of tank body by multiple；On the left of described tank body, upper end is provided with the feed tube with electromagnetic switch valve, is provided with external hydraulic meter on the right side of described tank body；It is provided with the sampling probe tube of tube valve and the discharge nozzle with discharge nozzle valve in the middle part of described tank body lower end, described tank body lower edge is provided with multiple support feets；Cover the installing rack that end is provided with inverted L-shaped on described, described installing rack is provided with rotary connecting joint.Present configuration is reasonable in design, by the setting of rotary connecting joint, rotating shaft is rotated while being passed through chemical gases, accelerator chemical gases spread, improve mixing efficiency, simultaneously can be to the drying of the chemical gases not participating in reaction and recovery, reduce production cost, rotating shaft has air inlet and the outlet passageway of chemical gases concurrently, reduces it and take up room.
Description
Technical field
The present invention relates to a kind of chemical industry equipment, specifically a kind of chemical industry gas-liquid mixed with gas concentration unit is reacted
Device.
Background technology
There is substantial amounts of gas liquid reaction in chemical engineering industry, just like the process of industrial waste gas, catalytic hydrogenation, aminating reaction
Deng existing in conventional gas-liquid reaction apparatus have absorption tower, Venturi tube, jet ejectors etc., and in absorption tower, liquid is from tower
Top is sprayed upwards from upper, and gas bottom-up thus realizing gas-liquid mixed, that is, occurs chemical reaction, jet ejectors
Being to form negative pressure using jet orifice, gas being sucked, thus realizing gas-liquid mixed；But the gas-liquid mixed using this structure is anti-
Answer device, the mixed effect between its gas-liquid bad it is impossible to realize being sufficiently mixed of gas-liquid, return between this gas-liquid material
Response time length, efficiency are low, and consumption of raw materials is big, so, provide one kind that the well-mixed gas-liquid mixed of gas-liquid storeroom can be made anti-
Answer device, just seem particularly necessary.
Content of the invention
It is an object of the invention to provide a kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit, on solving
State the problem proposing in background technology.
For achieving the above object, the present invention provides following technical scheme：
A kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit, including tank body and Shang Gai, described tank body upper end
What periphery was provided with annular prolongs side, and described upper lid is bolted to the prolonging on side of tank body by multiple；Upper end on the left of described tank body
It is provided with the feed tube with electromagnetic switch valve, on the right side of described tank body, be provided with external hydraulic meter；Set in the middle part of described tank body lower end
It is equipped with the sampling probe tube of tube valve and the discharge nozzle with discharge nozzle valve, described tank body lower edge is provided with multiple supports
Foot；Cover the installing rack that end is provided with inverted L-shaped on described, described installing rack is provided with rotary connecting joint；Described it is rotatably connected
Head lower end is provided with the groove of opening, is connected with rotating shaft by two miniature bearings be arrangeding in parallel, institute in described groove
State the through hole being provided with up/down perforation in rotating shaft, in described through hole, be provided with inner tube, exist between said inner tube and rotating shaft inwall
Gap；Said inner tube upper end is higher than that rotating shaft upper end is arranged, and inner tube upper end and rotating shaft upper end are all by sealing ring and groove inner wall
Cooperation；Described rotary connecting joint upper end is provided with the air inlet pipe connecting with inner tube, described rotary connecting joint right-hand member be provided with and
The gas outlet of gap connection；Described gas outlet is connected with the left of gas drying case by gas recovery pipe, and described gas drying case is right
Side is connected with gas recycling can by gas treatment tail pipe；Described rotating shaft extends to lower end in tank body, described tank body through upper lid
Interior rotating shaft bottom is arranged at intervals with multiple stirring paddles；Said inner tube extends to rotating shaft bottom with horizontally disposed escape pipe even
Logical, described escape pipe is located at below stirring paddle, and described escape pipe is provided with multiple ventholes；Rotating shaft top in described tank body
It is provided with multiple gas recovery holes higher than liquid level, described gas recovery holes are connected with gap；Described rotary connecting joint and Shang Gai
Between rotating shaft on be provided with belt pulley, described belt pulley is in transmission connection with driving wheel by belt, and described driving wheel lower end is even
It is connected to the motor driving its action, described motor is fixedly installed on and covers.
As the further scheme of the present invention：The miniature bearing upper end of upper end is provided with shaft block ring, the Minisize axial of lower end
Hold lower end and be provided with hole back-up ring, between described miniature bearing, be provided with spacer.
As the present invention further scheme：Band vent valve and bleeder pipe are provided with described gas recycling can.
As the present invention further scheme：The mouth of pipe of the feed tube in tank body is arranged down.
As the present invention further scheme：It is filled with desiccant in described gas drying case.
Compared with prior art, the invention has the beneficial effects as follows：During use, first pass through feed tube and be passed through chemical industry into tank body
Liquid, observes liquid level by external hydraulic meter, is off in right amount adding, then by outside chemical gases inlet pipe and air inlet pipe
Connect, because the setting of rotary connecting joint is so that chemical gases enter escape pipe by inner tube more quickly equal from multiple ventholes
Even be passed through chemical liquid bottom, simultaneously start motor, motor pass through driving wheel, belt, belt pulley constitute transmission mechanism drive
Axis of rotation, and then drive stirring paddle stirring chemical liquid so that chemical gases are stirred oar stirring in uphill process, accelerate
Device spreads, and improves mixing efficiency, and unmixing gas wafts to liquid level and enters gap from gas recovery holes, and passes sequentially through
Enter gas recycling can after gap, gas outlet, gas recovery pipe, gas drying case and gas treatment tail pipe, complete not participating in instead
The drying of the chemical gases answered and recovery, reduce production cost.
In sum, present configuration is reasonable in design, makes rotating shaft be passed through chemical industry gas by the setting of rotary connecting joint
Rotate while body, accelerator chemical gases spread, improve mixing efficiency, simultaneously can be dry to the chemical gases not participating in reaction
Dry and reclaim, reduce production cost, and rotating shaft has air inlet and the outlet passageway of chemical gases concurrently, reduces it and takes up room.
Brief description
Fig. 1 is the structural representation of the chemical industry gas-liquid mixed reactor with gas concentration unit.
Fig. 2 is the structural representation of the chemical industry gas-liquid mixed reactor with gas concentration unit.
In figure：1- tank body, 2- electromagnetic switch valve, 3- feed tube, 4- prolongs side, 5- bolt, 6- covers, 7- base bearing, and 8- pacifies
Shelve, 9- belt pulley, 10- belt, 11- driving wheel, 12- motor, 13- rotary connecting joint, 14- air inlet pipe, 15- gas outlet, 16-
Gas recovery pipe, 17- gas drying case, 18- gas treatment tail pipe, 19- vent valve, 20- bleeder pipe, 21- gas recycling can,
22- gas recovery holes, 23- external hydraulic meter, 24- stirring paddle, 25- escape pipe, 26- venthole, 27- samples tube valve, 28-
Probe tube, 29- discharging tube valve, 30- discharge nozzle, 31- support feet, 32- inner tube, 33- gap, 34- sealing ring, 35- groove,
36- spacer, 37- miniature bearing, 38- shaft block ring, 39- hole back-up ring, 40- rotating shaft.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1-2, a kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit, including tank body 1 and Shang Gai
6, what described tank body 1 upper end periphery was provided with annular prolongs side 4, and described upper lid 6 prolongs side 3 by what multiple bolts 5 were fixed on tank body 1
On；Described tank body 1 left side upper end is provided with the feed tube 3 with electromagnetic switch valve 2, is provided with external liquid on the right side of described tank body 1
Pressure meter 23；It is provided with the middle part of described tank body 1 lower end with the sampling probe tube 28 of tube valve 27 and the discharging with discharge nozzle valve 29
Pipe 30, described tank body 1 lower edge is provided with multiple support feets 21；Described upper lid 6 upper ends are provided with the installing rack 8 of inverted L-shaped, institute
State and rotary connecting joint 13 is provided with installing rack 8；Described rotary connecting joint 13 lower end is provided with the groove 35 of opening, described groove
It is connected with rotating shaft 40 by two miniature bearings be arrangeding in parallel 37, miniature bearing 37 upper end of upper end is provided with axle in 35
With back-up ring 38, miniature bearing 37 lower end of lower end is provided with hole back-up ring 39, is provided with spacer 36 between described miniature bearing 37；
It is provided with the through hole of up/down perforation in described rotating shaft 40, be provided with inner tube 32 in described through hole, in said inner tube 32 and rotating shaft 40
There is gap 33 between wall；Said inner tube 32 upper end be higher than rotating shaft 40 upper end arrange, and inner tube 32 upper end and rotating shaft 40 upper end equal
By sealing ring 34 and the cooperation of groove 35 inwall；Described rotary connecting joint 13 upper end is provided with the air inlet pipe connecting with inner tube 32
14, described rotary connecting joint 13 right-hand member is provided with the gas outlet 15 connecting with gap 33；Described gas outlet 15 is reclaimed by gas
Pipe 16 is connected with gas drying case 17 left side, and described gas drying case 17 right side is by gas treatment tail pipe 18 and gas recycling can
21 connections；Described rotating shaft 40 passes through upper lid 6 to extend to lower end in tank body 1, and rotating shaft 40 bottom in described tank body 1 is arranged at intervals with
Multiple stirring paddles 24；Said inner tube 32 is extended to rotating shaft 40 bottom and is connected with horizontally disposed escape pipe 25, described escape pipe 25
Below stirring paddle 24, described escape pipe 25 is provided with multiple ventholes 26；Rotating shaft 40 top setting in described tank body 1
There are multiple gas recovery holes 22 higher than liquid level, described gas recovery holes 22 are connected with gap 33；Described rotary connecting joint 13 with
It is provided with belt pulley 9, described belt pulley 9 is in transmission connection with driving wheel 11 by belt 10, described in rotating shaft 40 between upper lid 6
Driving wheel 11 lower end is connected with the motor 12 driving its action, and described motor 12 is fixedly installed on lid 6.
The operation principle of the present invention is：During use, first pass through feed tube 3 and be passed through chemical liquid into tank body 1, by external
Liquid level observed by formula hydrostatic gauge 23, is off in right amount adding, is then connected outside chemical gases inlet pipe with air inlet pipe 14, due to
The setting of rotary connecting joint 13 is so that chemical gases enter escape pipe 25 by inner tube 32 more quickly equal from multiple ventholes 26
Even be passed through chemical liquid bottom, simultaneously start motor 12, motor 12 pass through driving wheel 11, belt 10, belt pulley 9 constitute transmission
Mechanism drives rotating shaft 40 to rotate, and then drives stirring paddle 24 stirring chemical liquid so that chemical gases are stirred in uphill process
Mix oar stirring, accelerator spreads, and improves mixing efficiency, and unmixing gas wafts to liquid level and enters from gas recovery holes 22
Gap 33, and after passing sequentially through gap 33, gas outlet 15, gas recovery pipe 16, gas drying case 17 and gas treatment tail pipe 18
Enter gas recycling can 21, complete not participating in drying and the recovery of the chemical gases of reaction, reduce production cost.
In describing the invention, it should be noted that term " on ", D score, "left", "right", " interior ", the instruction such as " outward "
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and simplification retouch
State, rather than instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment only wraps
Containing an independent technical scheme, only for clarity, those skilled in the art should for this narrating mode of description
Using description as an entirety, the technical scheme in each embodiment can also form those skilled in the art through appropriately combined
Understandable other embodiment.
Claims (3)
1. a kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit, including tank body and upper lid it is characterised in that described
What tank body upper end periphery was provided with annular prolongs side, and described upper lid is bolted to the prolonging on side of tank body by multiple；Described tank body
Left side upper end is provided with the feed tube with electromagnetic switch valve, is provided with external hydraulic meter on the right side of described tank body；Under described tank body
It is provided with the sampling probe tube of tube valve and the discharge nozzle with discharge nozzle valve in the middle part of end, described tank body lower edge is provided with
Multiple support feets；Cover the installing rack that end is provided with inverted L-shaped on described, described installing rack is provided with rotary connecting joint；Described
Rotary connecting joint lower end is provided with the groove of opening, is connected with by two miniature bearings be arrangeding in parallel in described groove
Rotating shaft, is provided with the through hole of up/down perforation in described rotating shaft, be provided with inner tube in described through hole, said inner tube and rotating shaft inwall it
Between there is gap；Said inner tube upper end be higher than rotating shaft upper end arrange, and inner tube upper end and rotating shaft upper end all by sealing ring with recessed
Groove inwall coordinates；Described rotary connecting joint upper end is provided with the air inlet pipe connecting with inner tube, described rotary connecting joint right-hand member setting
There is the gas outlet connecting with gap；Described gas outlet is connected with the left of gas drying case by gas recovery pipe, and described gas is done
Connected with gas recycling can by gas treatment tail pipe on the right side of dry case；Described rotating shaft extends to lower end in tank body, institute through upper lid
The rotating shaft bottom stated in tank body is arranged at intervals with multiple stirring paddles；Said inner tube is extended to rotating shaft bottom and is given vent to anger with horizontally disposed
Pipe connects, and described escape pipe is located at below stirring paddle, and described escape pipe is provided with multiple ventholes；Rotating shaft in described tank body
Top is provided with multiple gas recovery holes higher than liquid level, and described gas recovery holes are connected with gap；Described rotary connecting joint with
It is provided with belt pulley, described belt pulley is in transmission connection with driving wheel by belt, under described driving wheel in rotating shaft between upper lid
End is connected with the motor driving its action, and described motor is fixedly installed on and covers, and the miniature bearing upper end of upper end is provided with axle
With back-up ring, the miniature bearing lower end of lower end is provided with hole back-up ring, is provided with spacer, described gas returns between described miniature bearing
Band vent valve and bleeder pipe are provided with closed cans.
2. the chemical industry gas-liquid mixed reactor with gas concentration unit according to claim 1 is it is characterised in that be located at
The mouth of pipe of the feed tube in tank body is arranged down.
3. the chemical industry with gas concentration unit according to claim 1 with gas-liquid mixed reactor it is characterised in that described
It is filled with desiccant in gas drying case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228580.5A CN106475021A (en) | 2016-12-27 | 2016-12-27 | A kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228580.5A CN106475021A (en) | 2016-12-27 | 2016-12-27 | A kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106475021A true CN106475021A (en) | 2017-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611228580.5A Withdrawn CN106475021A (en) | 2016-12-27 | 2016-12-27 | A kind of gas-liquid mixed reactor of the chemical industry with gas concentration unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106475021A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376811A (en) * | 2017-08-30 | 2017-11-24 | 郑州诚合信息技术有限公司 | A kind of chemical material stirred tank |
| US10987443B1 (en) | 2020-07-03 | 2021-04-27 | Chio Kang Medical, Inc. | Container sterilization device and system, assembling method thereof, and use thereof |
| US11085016B1 (en) | 2020-01-20 | 2021-08-10 | Chio Kang Medical, Inc. | Method for screening bacteria capable of degrading ethylene oxide |
| US11103829B1 (en) | 2020-03-18 | 2021-08-31 | Chio Kang Medical, Inc. | Systems and methods for treating ethylene oxide waste gas |
| US11103608B1 (en) | 2020-07-03 | 2021-08-31 | Chio Kang Medical, Inc. | Mobile pretreatment apparatus and an operating method thereof, and a mobile analysis apparatus and an operating method thereof |
| US11110390B1 (en) * | 2020-03-18 | 2021-09-07 | Chio Kang Medical, Inc. | Systems and methods for treating sterilization exhaust gas containing ethylene oxide |
| US11123449B1 (en) | 2020-07-03 | 2021-09-21 | Chio Kang Medical, Inc. | Mobile sterilization system, mobile execution system, and mobile analysis system |
| US11125498B1 (en) | 2020-03-18 | 2021-09-21 | Chio Kang Medical, Inc. | Gas liquefaction separator, gas liquefaction recovery system, and method for separating and recovering ethylene oxide |
| US11124438B2 (en) | 2020-01-20 | 2021-09-21 | Chio Kang Medical, Inc. | Alcaligenes faecalis for degrading ethylene oxide |
| US11123680B1 (en) | 2020-03-18 | 2021-09-21 | Chio Kang Medical, Inc. | Devices, systems, and methods for treating ethylene oxide waste gas |
| US20210291105A1 (en) | 2020-03-19 | 2021-09-23 | Chio Kang Medical, Inc. | Ethylene Oxide Adsorption Tower and Recovery System, and Method for Recovering Ethylene Oxide |
| US11130939B2 (en) | 2020-01-20 | 2021-09-28 | Chio Kang Medical, Inc. | Bacteria for degrading ethylene oxide and uses thereof |
| US11130095B1 (en) | 2020-03-18 | 2021-09-28 | Chio Kang Medical, Inc. | Sterilization exhaust gas treating system and method for treating ethylene oxide-containing sterilization exhaust gas by using the same |
| US11136253B1 (en) | 2020-03-18 | 2021-10-05 | Chio Kang Medical, Inc. | Microbiological treatment system for ethylene oxide exhaust gas |
| US11220667B2 (en) | 2020-01-20 | 2022-01-11 | Chio Kang Medical, Inc. | Bacteria for degrading ethylene oxide and applications thereof |
| CN115155490A (en) * | 2022-06-16 | 2022-10-11 | 安徽广信农化股份有限公司 | Continuous preparation device for reducing unit consumption of isocyanate solvent and preparation method thereof |
-
2016
- 2016-12-27 CN CN201611228580.5A patent/CN106475021A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376811A (en) * | 2017-08-30 | 2017-11-24 | 郑州诚合信息技术有限公司 | A kind of chemical material stirred tank |
| US11124438B2 (en) | 2020-01-20 | 2021-09-21 | Chio Kang Medical, Inc. | Alcaligenes faecalis for degrading ethylene oxide |
| US11220667B2 (en) | 2020-01-20 | 2022-01-11 | Chio Kang Medical, Inc. | Bacteria for degrading ethylene oxide and applications thereof |
| US11085016B1 (en) | 2020-01-20 | 2021-08-10 | Chio Kang Medical, Inc. | Method for screening bacteria capable of degrading ethylene oxide |
| US11130939B2 (en) | 2020-01-20 | 2021-09-28 | Chio Kang Medical, Inc. | Bacteria for degrading ethylene oxide and uses thereof |
| US11130095B1 (en) | 2020-03-18 | 2021-09-28 | Chio Kang Medical, Inc. | Sterilization exhaust gas treating system and method for treating ethylene oxide-containing sterilization exhaust gas by using the same |
| US11125498B1 (en) | 2020-03-18 | 2021-09-21 | Chio Kang Medical, Inc. | Gas liquefaction separator, gas liquefaction recovery system, and method for separating and recovering ethylene oxide |
| US11110390B1 (en) * | 2020-03-18 | 2021-09-07 | Chio Kang Medical, Inc. | Systems and methods for treating sterilization exhaust gas containing ethylene oxide |
| US11123680B1 (en) | 2020-03-18 | 2021-09-21 | Chio Kang Medical, Inc. | Devices, systems, and methods for treating ethylene oxide waste gas |
| US11103829B1 (en) | 2020-03-18 | 2021-08-31 | Chio Kang Medical, Inc. | Systems and methods for treating ethylene oxide waste gas |
| US11136253B1 (en) | 2020-03-18 | 2021-10-05 | Chio Kang Medical, Inc. | Microbiological treatment system for ethylene oxide exhaust gas |
| US20210291105A1 (en) | 2020-03-19 | 2021-09-23 | Chio Kang Medical, Inc. | Ethylene Oxide Adsorption Tower and Recovery System, and Method for Recovering Ethylene Oxide |
| US11129914B1 (en) | 2020-03-19 | 2021-09-28 | Chio Kang Medical, Inc. | Ethylene oxide adsorption tower and recovery system, and method for recovering ethylene oxide |
| US11123449B1 (en) | 2020-07-03 | 2021-09-21 | Chio Kang Medical, Inc. | Mobile sterilization system, mobile execution system, and mobile analysis system |
| US11103608B1 (en) | 2020-07-03 | 2021-08-31 | Chio Kang Medical, Inc. | Mobile pretreatment apparatus and an operating method thereof, and a mobile analysis apparatus and an operating method thereof |
| US10987443B1 (en) | 2020-07-03 | 2021-04-27 | Chio Kang Medical, Inc. | Container sterilization device and system, assembling method thereof, and use thereof |
| CN115155490A (en) * | 2022-06-16 | 2022-10-11 | 安徽广信农化股份有限公司 | Continuous preparation device for reducing unit consumption of isocyanate solvent and preparation method thereof |
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Application publication date: 20170308 |