CN208161434U - A kind of compounding medicine tank with quick nitrogen charging device - Google Patents
A kind of compounding medicine tank with quick nitrogen charging device Download PDFInfo
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- CN208161434U CN208161434U CN201820340897.6U CN201820340897U CN208161434U CN 208161434 U CN208161434 U CN 208161434U CN 201820340897 U CN201820340897 U CN 201820340897U CN 208161434 U CN208161434 U CN 208161434U
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Abstract
A kind of compounding medicine tank with quick nitrogen charging device including driving motor, gear reducer component, agitating shaft, tank body and is mounted on the end socket of top of the tank and by the closed bottom cover of tank base, offers liquid outlet on the bottom cover;The front end of the nitrogen blanketing valve is connected with fast charge component, the fast charge component includes the auxiliary nitrogen tube of main nitrogen tube and setting connected in parallel, the import of the main nitrogen tube and the auxiliary nitrogen tube are connected to the source nitrogen, booster pump is provided in the main nitrogen tube, shut-off valve is provided in the auxiliary nitrogen tube, the main nitrogen tube is connected by Quick connection sleeve with nitrogen blanketing valve；The utility model can quickly be passed through nitrogen, reduce the time of contact of preparing tank herb liquid and foreign gas, that accelerates nitrogen is filled with speed, quickly discharge tank body residual oxygen, eliminate a large amount of foams generated in medical fluid, so as to keep drug more uniform in preparation in-tank mixing, achieve the effect that guarantee stable product quality.
Description
Technical field
The utility model belongs to field of biological pharmacy, more particularly, to a kind of compounding medicine with quick nitrogen charging device
Tank.
Background technique
The operations such as normal pressure, decocting, the fragrant oil extract of the industries such as Chinese medicine, food generally will use extractor, and Chinese medicine refers to
For preventing, diagnosing, treating disease or adjusting the drug of function of human body under instruction of Chinese Medicine theory.Mostly botanical medicine also has
Object medicine, mineral drug and part chemistry, biological drug.Chinese medicine is divided into Chinese patent drug, Chinese medicine by processing technology.Chinese medicine is main
Originating from China, other than botanical medicine, animal drugs such as snake gall, bear gall, long-noded pit viper, pilose antler, deer horn etc.;Shell class such as pearl,
Concha meretricis seu cylinae;Mineral substance such as keel, magnetite etc. are all the Chinese medicine for curing the disease.A small number of Chinese medicines are derived from foreign country, such as American Ginseng.Now I
Relatively common Chinese medicine be generally referred to as Chinese medicine soup agent, have various soup agents on the market now, in present industry
The decoction of medicinal ingredients that metaplasia produces, usually medicinal material are put together cooking, then it is cold go it is filling, but due to the pharmacological property of various medicinal materials
Difference carries out separating cooking, and together, the dosing apparatus that present this kind of production method is used compares last mixed configuration
It is few.
Currently, in order to ensure the stabilization of drug quality, in the production process of drug, it is necessary to take all means and method
To improve the stability of drug, such as sterile powder injection can be made, for oxidizable than more sensitive drug to water and soda acid
, then reduce time that drug contacts oxygen to the greatest extent and may.
Pulvis or injection container in use, need to be filled with nitrogen into container be discharged in container other mix gas
Body, alleviates the variation of drug color grade according to the inertia of nitrogen, to achieve the effect that improve stability of drug products, reaches protection product
Purpose.Existing nitrogen charging device needs manually to tighten pipe joint in connection, expends certain time, increases medical fluid
With the time of contact of foreign gas, drug quality is influenced, uninterrupted is controlled against regulating valve, it cannot achieve quick nitrogen charging,
Foreign gas can not be quickly discharged to preparing tank, preparing tank is delivered to by stainless steel closed conduit after connection, is filled to reach
Enter the purpose of nitrogen protection product.But the main ingredient of residual air in preparing tank, air is nitrogen and oxygen, but oxygen is close
Degree is big, sinks in closed container, is not avoided that in product and is mixed with remaining oxygen, and during stirring, is easy in medicine
The upper face of liquid generates a large amount of foam, and the presence of foam has seriously affected the mixing quality of medical fluid and the row of foreign gas
Out.
Utility model content
In order to overcome the deficiencies of the prior art, the utility model proposes a kind of compounding medicines with quick nitrogen charging device
Tank can quickly be passed through nitrogen, reduce the time of contact of preparing tank herb liquid and foreign gas, and that accelerates nitrogen is filled with speed,
Quickly discharge tank body residual oxygen eliminates a large amount of foams generated in medical fluid, so as to make drug prepare in-tank mixing more
Add uniformly, achievees the effect that guarantee stable product quality.
The technical solution adopted in the utility model is：
A kind of compounding medicine tank with quick nitrogen charging device, including driving motor, gear reducer component, agitating shaft, tank body
And it is mounted on the end socket of top of the tank and by the closed bottom cover of tank base, offers liquid outlet on the bottom cover;The tank
It is connected with the size heat preservation cylinder adaptable with tank body and bottom cover size on body and bottom cover, keeps the temperature the inner surface and tank body of cylinder
It is arranged with the appearance face interval of bottom cover, filled with insulating layer between heat preservation cylinder and tank body and the bottom cover, the one of the tank body
Side is equipped with steam inlet, is provided with steam (vapor) outlet on the bottom cover；
The driving motor is fixed on the top of end socket, and the driving motor is connect with the input terminal of deceleration thermomechanical components, institute
The output end and agitating shaft for stating deceleration thermomechanical components are drivingly connected;The agitating shaft is deep into tank interior, and its from end socket vertically
Central axis is not overlapped with the central axis of tank body;
One group is socketed on the agitating shaft to be located at the intracorporal defoaming device of the tank and be located at below the defoaming device
U-shaped agitating paddle, the defoaming device include defoam plate and be installed on defoaming plate lower part defoaming tooth；
The upper end of the tank body is additionally provided with the pneumostome and extend functional group for connecting for guaranteeing that tank body is communicated with the atmosphere
The spare mouth of part；
Nitrogen blanketing valve is also equipped on the end socket, the nitrogen blanketing valve is deep into the bottom of tank body and its lower end is equipped with and it
The lateral escape pipe of connection, the transverse direction escape pipe are arranged lower than stirring blade, and the right end closing of lateral escape pipe laterally goes out
Multiple gas outlets are provided on tracheae；
The front end of the nitrogen blanketing valve is connected with fast charge component, and the fast charge component includes main nitrogen tube and connected in parallel sets
The auxiliary nitrogen tube set, the import of the main nitrogen tube and the auxiliary nitrogen tube are connected to the source nitrogen, the main nitrogen tube
On be provided with booster pump, be provided with shut-off valve in the auxiliary nitrogen tube, the main nitrogen tube passes through Quick connection sleeve and nitrogen blanketing valve
It is connected；
The side of the tank body is provided with the sample tap for medical fluid in extractor body；
Tank bottom diaphragm valve is provided on the liquid outlet；
It is additionally provided with the detection mouth for detecting fluid temperature in tank body on the bottom cover, temperature is installed in the detection mouth
Spend sensor.
Preferably, the Quick connection sleeve is in step-like rubber by being made, and the cross section of its every grade step is in circle
Shape.
Preferably, the defoaming plate is circular slab, and defoams plate and agitating shaft coaxial arrangement, the diameter of the defoaming plate
Greater than the diameter of the U-shaped agitating paddle.
Preferably, the tank bottom diaphragm valve includes valve seat, outlet tube, valve deck, valve rod, operation handwheel, the valve seat
The connection of the liquid outlet of side and tank body, other side setting pipe joint are fixedly connected with outlet tube, and the valve deck passes through locking
Bolt is fixed on the lateral wall of valve seat pipe joint, forms valve chamber, and the valve rod is arranged in valve chamber, and the valve rod is connected with
Handwheel is operated, is provided with skid resistance strip on the operation handwheel.
Preferably, the compounding medicine tank further includes the frequency converter that can adjust driving motor output power, the change
Frequency device is electrically connected with driving motor.
Preferably, the end socket is equipped with the manhole that can quickly open and close;The manhole is located in tank body
The side of mandrel line, the central axis of the agitating shaft are located at the other side of the central axis of tank body.
Lamp is visited preferably, being additionally provided on the end socket convenient for the visor of observation tank interior liquid case and integration.
Preferably, being provided at least one on the end socket convenient for the cleaning interface of cleaning tank interior.
Preferably, the tank body, end socket and bottom cover integrally casting shaping.
Preferably, the bottom of bottom cover is connected at least three support legs.
The beneficial effects of the utility model are：1, agitating shaft is not overlapped with the central axis of tank body, agitating shaft and fixation
U-shaped agitating paddle on agitating shaft is located at the side of tank body, and driving motor is through speed reducer Component driver agitating shaft the one of tank body
When side rotates, since solution cannot be symmetrical around agitating shaft, that is, it is unfavorable for forming stable vortex shape, U-shaped agitating paddle energy
The stirring extent of medical fluid is enough increased, therefore, solution is more fully mixed and efficient with allotment preparation, can be improved the effect of process
Rate；2, nitrogen blanketing valve is directly deep into the bottom of tank body, and is provided with lateral escape pipe, nitrogen can be made to mix with medical fluid more equal
It is even, remaining oxygen in tank body is more quickly replaced, preparation product is protected；3, it is provided with tank bottom diaphragm valve, is being worked as
When tank bottom carries out media discharge, medium can be directly external through liquid outlet drain tank, makes to retain in tank body without medium, guarantees tank body
Meet the sanitation-grade requirement of pharmacy, food or bioengineering field；4, it is provided with defoaming device on agitating shaft, it can be effective
The foam generated in stirring is eliminated, to keep medical fluid mixing more uniform, and then the foreign gas during nitrogen charging is effectively discharged；
5, it is provided with fast charge component, the speed that is filled with of nitrogen can be accelerated, while being provided with Quick connection sleeve, nitrogen can be fast implemented
The quick connection in source and nitrogen blanketing valve reduces the time of contact of medical fluid and foreign gas, guarantees that the quality of medical fluid is stablized.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the enlarged drawing in Fig. 1 at A.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
It please refers to Fig.1 to Fig.3.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, is not intended to limit the utility model
Enforceable qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or size
Adjustment, in the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all fall in the utility model institute
In the range of the technology contents of announcement can be covered.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " in
Between " and " one " etc. term, be merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model,
Relativeness is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
A kind of compounding medicine tank with quick nitrogen charging device, including driving motor 1, deceleration thermomechanical components 2, agitating shaft 3, tank
It body 4 and is mounted on the end socket 5 at the top of tank body 4 and by the closed bottom cover 6 in 4 bottom of tank body, offers liquid outlet 7 on bottom cover 6;
It is connected with the size heat preservation cylinder 8 adaptable with tank body 4 and 6 size of bottom cover on tank body 4 and bottom cover 6, keeps the temperature the interior table of cylinder 8
The appearance face interval of face and tank body 4 and bottom cover 6 is arranged, and keeps the temperature and is filled with insulating layer 9, tank between cylinder 8 and tank body 4 and bottom cover 6
The side of body 4 is equipped with steam inlet 10, is provided with steam (vapor) outlet 11 on bottom cover 6；
Driving motor 1 is fixed on the top of tank body 4, and driving motor 1 is connect with the input terminal of deceleration thermomechanical components 2, speed reducer
The output end and agitating shaft 3 of component 2 are drivingly connected;Agitating shaft 3 is deep into inside tank body 4 vertically from end socket 5, and center axis thereof
It is not overlapped with the central axis of tank body 4;
It is socketed with defoaming device that one group is located in the tank body 4 on agitating shaft 3 and U-shaped below defoaming device is stirred
Paddle 13 is mixed, defoaming device includes the defoaming tooth 122 for defoaming plate 121 and being installed on defoaming 121 lower part of plate.Plate is defoamed in the present embodiment
121 be circular slab, and defoams plate 121 and the coaxial arrangement of agitating shaft 3, and the diameter of defoaming plate 121 is greater than the U-shaped agitating paddle 13
Diameter.
The upper end of tank body 4 is additionally provided with the pneumostome 14 and extend functional group for connecting for guaranteeing that tank body 4 is communicated with the atmosphere
The spare mouth 15 of part；
Nitrogen blanketing valve 16 is also equipped on end socket 5, nitrogen blanketing valve 16 is deep into the bottom of tank body 4 and its lower end and is equipped with and connects with it
Logical lateral escape pipe 17, lateral escape pipe 17 are arranged lower than U-shaped agitating paddle 13, the right end closing of lateral escape pipe 17, horizontal
Multiple gas outlets 18 are provided on escape pipe 17；
The front end of nitrogen blanketing valve 16 is connected with fast charge component, and fast charge component includes main nitrogen tube 271 and setting connected in parallel
Auxiliary nitrogen tube 272, the import of main nitrogen tube 271 and auxiliary nitrogen tube 272 are connected to source nitrogen, are provided in main nitrogen tube 271
Booster pump 273, shut-off valve 274 is provided in auxiliary nitrogen tube 272, and main nitrogen tube 271 passes through Quick connection sleeve 275 and nitrogen blanketing valve 16
It is connected；Quick connection sleeve 275 in the present embodiment in step-like rubber by being made, and the cross section of its every grade step is in circle
Shape.
The side of tank body 4 is provided with the sample tap 19 for extracting medical fluid in tank body 4；
Tank bottom diaphragm valve 20 is provided on liquid outlet 7；
It is additionally provided with the detection mouth 21 for detecting fluid temperature in tank body 4 on bottom cover 6, temperature is installed in detection mouth 21
Sensor 22.
Tank bottom diaphragm valve 20 includes valve seat 201, outlet tube 202, valve deck 203, valve rod 204, operation handwheel 205, valve seat 201
Side is connect with the liquid outlet 7 of tank body 4, and other side setting pipe joint is fixedly connected with outlet tube 202, and valve deck 203 passes through lock
Tight bolt is fixed on the lateral wall of 201 pipe joint of valve seat, forms valve chamber, and valve rod 204 is arranged in valve chamber, and valve rod 204 connects
There is operation handwheel 205, operates and be provided with skid resistance strip 206 on handwheel 205.
Compounding medicine tank further includes the frequency converter that can adjust 1 output power of driving motor, 1 electricity of frequency converter and driving motor
Connection.
End socket 5 is equipped with the manhole 23 that can quickly open and close;Manhole 23 is located at the one of the central axis of tank body 4
Side, the central axis of agitating shaft 3 are located at the other side of the central axis of tank body 4.
It is additionally provided on end socket 5 and visits lamp 25 convenient for the visor 24 of observation 4 internal liquid situation of tank body and integration.
At least one is provided on end socket 5 convenient for the cleaning interface 26 inside cleaning tank body 4.
6 integrally casting shaping of tank body 4, end socket 5 and bottom cover.
The bottom of bottom cover 6 is connected at least three support legs 27.
When specific works, agitating shaft 3 is driven to rotate by opening driving motor 1, to make defoaming device and U-shaped stirring
Paddle 13 rotates, and is sufficiently mixed medical fluid in tank body 4, and due to the effect of U-shaped agitating paddle 13, the mixing of medical fluid is more uniform,
While medical fluid mixes, defoaming device is rotated together with agitating shaft 13, thus the removal of foam that medical fluid upper surface is generated, and
And since agitating shaft 13 is not on the shaft core position of tank body 4, so medical fluid cannot be symmetrical around agitating shaft, not will form
Stable eddy-currents, therefore mix more efficiently and uniform.It is to need when needing for the foreign gas in tank body 4 to be quickly discharged
A large amount of nitrogen are quickly passed through, connect main nitrogen tube 271 and nitrogen blanketing valve 16 quickly by Quick connection sleeve 275, Quick connection sleeve
The 275 main nitrogen tubes 271 that can be realized different-diameter are connected with nitrogen blanketing valve 16, and connection is quick and convenient, after connection, pass through nitrogen charging
Pipe 16 pours nitrogen, opens shut-off valve 274, nitrogen is filled with by main nitrogen tube 271 and auxiliary nitrogen tube 272, and passes through pressurization
Pump 273 accelerates the nitrogen amount being filled with, and due to the presence of lateral escape pipe 17 and gas outlet 18, nitrogen outlet is more uniform, and
Since lateral escape pipe 17 is located at 4 lower part of tank body, so can be by the oxygen in medical fluid from the nitrogen that lateral escape pipe 17 sprays
With other impurities gas extrusion to the top of tank body 4, to be discharged from pneumostome 14, nitrogen can be made to mix with medical fluid more equal
Even, more quickly remaining oxygen in displacement tank body, the time of contact of reduction medical fluid and oxygen protect preparation product
Shield.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of compounding medicine tank with quick nitrogen charging device, it is characterised in that：Including driving motor, gear reducer component, stir
It mixes axis, tank body and is mounted on the end socket of top of the tank and by the closed bottom cover of tank base, offers out liquid on the bottom cover
Mouthful；It is connected with the size heat preservation cylinder adaptable with tank body and bottom cover size on the tank body and bottom cover, keeps the temperature the interior of cylinder
The appearance face interval of surface and tank body and bottom cover is arranged, and insulating layer, institute are filled between heat preservation cylinder and tank body and the bottom cover
The side for stating tank body is equipped with steam inlet, is provided with steam (vapor) outlet on the bottom cover；
The driving motor is fixed on the top of end socket, and the driving motor is connect with the input terminal of deceleration thermomechanical components, described to subtract
The output end and agitating shaft of fast thermomechanical components are drivingly connected；The agitating shaft is deep into tank interior, and its center from end socket vertically
Axis is not overlapped with the central axis of tank body；
It is socketed with one group on the agitating shaft and is located at the intracorporal defoaming device of the tank and U-shaped below the defoaming device
Agitating paddle, the defoaming device include the defoaming tooth for defoaming plate and being installed on defoaming plate lower part；
The upper end of the tank body is additionally provided with the pneumostome and extend functional unit for connecting for guaranteeing that tank body is communicated with the atmosphere
Spare mouth；
Nitrogen blanketing valve is also equipped on the end socket, the nitrogen blanketing valve is deep into the bottom of tank body and its lower end and is equipped with and communicates therewith
Lateral escape pipe, the transverse direction escape pipe is arranged lower than stirring blade, and the right end of lateral escape pipe is closed, lateral escape pipe
On be provided with multiple gas outlets；
The front end of the nitrogen blanketing valve is connected with fast charge component, and the fast charge component includes main nitrogen tube and setting connected in parallel
Auxiliary nitrogen tube, the import of the main nitrogen tube and the auxiliary nitrogen tube are connected to source nitrogen, are provided in the main nitrogen tube
Booster pump is provided with shut-off valve in the auxiliary nitrogen tube, and the main nitrogen tube is connected by Quick connection sleeve with nitrogen blanketing valve；
The side of the tank body is provided with the sample tap for medical fluid in extractor body；
Tank bottom diaphragm valve is provided on the liquid outlet；
It is additionally provided with the detection mouth for detecting fluid temperature in tank body on the bottom cover, temperature biography is installed in the detection mouth
Sensor.
2. a kind of compounding medicine tank with quick nitrogen charging device according to claim 1, it is characterised in that：It is described quick
Connector sleeve in step-like rubber by being made, and the circular in cross-section of its every grade step.
3. a kind of compounding medicine tank with quick nitrogen charging device according to claim 2, it is characterised in that：The defoaming
Plate is circular slab, and defoams plate and agitating shaft coaxial arrangement, and the diameter of the defoaming plate is greater than the diameter of the U-shaped agitating paddle.
4. a kind of compounding medicine tank with quick nitrogen charging device according to claim 3, it is characterised in that：The tank bottom
Diaphragm valve includes valve seat, outlet tube, valve deck, valve rod, operation handwheel, and the liquid outlet of the valve seat side and tank body connects, separately
Side setting pipe joint is fixedly connected with outlet tube, and the valve deck is fixed on the outer of valve seat pipe joint by clamping screw
Side wall forms valve chamber, and the valve rod is arranged in valve chamber, and the valve rod is connected with operation handwheel, sets on the operation handwheel
It is equipped with skid resistance strip.
5. a kind of compounding medicine tank with quick nitrogen charging device according to claim 4, it is characterised in that：The drug
Preparing tank further includes the frequency converter that can adjust driving motor output power, and the frequency converter is electrically connected with driving motor.
6. a kind of compounding medicine tank with quick nitrogen charging device according to claim 5, it is characterised in that：The end socket
It is equipped with the manhole that can quickly open and close；The manhole is located at the side of the central axis of tank body, the agitating shaft
Central axis is located at the other side of the central axis of tank body.
7. a kind of compounding medicine tank with quick nitrogen charging device according to claim 6, it is characterised in that：The end socket
On be additionally provided with convenient for observation tank interior liquid case visor and integration visit lamp.
8. a kind of compounding medicine tank with quick nitrogen charging device according to any one of claims 1 to 7, it is characterised in that：
At least one is provided on the end socket convenient for the cleaning interface of cleaning tank interior.
9. a kind of compounding medicine tank with quick nitrogen charging device according to claim 8, it is characterised in that：The tank
Body, end socket and bottom cover integrally casting shaping.
10. a kind of compounding medicine tank with quick nitrogen charging device according to claim 9, it is characterised in that：Bottom cover
Bottom is connected at least three support legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820340897.6U CN208161434U (en) | 2018-03-13 | 2018-03-13 | A kind of compounding medicine tank with quick nitrogen charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820340897.6U CN208161434U (en) | 2018-03-13 | 2018-03-13 | A kind of compounding medicine tank with quick nitrogen charging device |
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| Publication Number | Publication Date |
|---|---|
| CN208161434U true CN208161434U (en) | 2018-11-30 |
Family
ID=64372983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820340897.6U Active CN208161434U (en) | 2018-03-13 | 2018-03-13 | A kind of compounding medicine tank with quick nitrogen charging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208161434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882635A (en) * | 2019-12-04 | 2020-03-17 | 攀枝花钢企欣宇化工有限公司 | Sodium sulfite solution preparation tank and preparation system for chlor-alkali |
| CN116393070A (en) * | 2023-04-11 | 2023-07-07 | 昆山欣谷微电子材料有限公司 | Copolymer for preparing developing solution by slowly releasing dissolved oxygen and use method thereof |
-
2018
- 2018-03-13 CN CN201820340897.6U patent/CN208161434U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882635A (en) * | 2019-12-04 | 2020-03-17 | 攀枝花钢企欣宇化工有限公司 | Sodium sulfite solution preparation tank and preparation system for chlor-alkali |
| CN110882635B (en) * | 2019-12-04 | 2022-04-01 | 攀枝花钢企欣宇化工有限公司 | Sodium sulfite solution preparation tank and preparation system for chlor-alkali |
| CN116393070A (en) * | 2023-04-11 | 2023-07-07 | 昆山欣谷微电子材料有限公司 | Copolymer for preparing developing solution by slowly releasing dissolved oxygen and use method thereof |
| CN116393070B (en) * | 2023-04-11 | 2024-01-23 | 昆山欣谷微电子材料有限公司 | Copolymer for preparing developing solution by slowly releasing dissolved oxygen and use method thereof |
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