CN107883189A - A kind of metering method of metering device and carbonyl liquid in carbonylation metallurgical production - Google Patents
A kind of metering method of metering device and carbonyl liquid in carbonylation metallurgical production Download PDFInfo
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- CN107883189A CN107883189A CN201711148994.1A CN201711148994A CN107883189A CN 107883189 A CN107883189 A CN 107883189A CN 201711148994 A CN201711148994 A CN 201711148994A CN 107883189 A CN107883189 A CN 107883189A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses the metering method of the metering device in a kind of carbonylation metallurgical production and carbonyl liquid, the rewinding tank of the device including carbonyl liquid material, transfer measuring tank and go out flow container composition, hydraulic fluid air inlet pipe, blast pipe, pressure gauge and liquid level gauge are each equipped with three jars.Rewinding tank receives carrys out carbonyl liquid from synthesis system, by hydraulic fluid conveyance conduit by after carbonyl liquid press-in transfer measuring tank to certain liquid level, transfer measuring tank is pressed into out into flow container carbonyl liquid handled for follow-up system such as decomposing system etc..Wherein liquid level difference effectively can be measured accurately before and after the hydraulic fluid of transfer measuring tank.The carbonylation metallurgical production process consumed for carbonyl liquid in production, the invention provides a kind of accurately with reliable carbonyl liquid metering device and method, necessary condition is provided accurately to calculate upstream and downstream production system cost in carbonylation metallurgical production process.
Description
Technical field
The invention belongs to carbonyl technical field of metallurgical production, and in particular to a kind of metering device in carbonylation metallurgical production and
The method measured to the carbonyl liquid in carbonylation metallurgy continuous production.
Background technology
Lower procedure need to be transported in carbonylation metallurgical production process, while synthesizing output carbonyl liquid to be handled,
But design is frequently with a fluid reservoir or two fluid reservoirs（Receive liquid one for one and go out liquid）Carry out having bad luck for carbonyl liquid, but foundation
Produce reality and knowhow understand that liquid measure can not accurately be measured down by carrying out consuming the process of liquid while liquid is produced, with production
The extension in cycle, production liquid and consumes the amount of metal difference of liquid and output product and gradually increases, and does not meet current lean production and strict
Production control under economic cost accounting is required, therefore a kind of simple and practical and reliable device accurately measured and metering are needed for this
Method.
The content of the invention
The problem of existing for above-mentioned existing apparatus and technology, the present invention provide the metering dress in a kind of carbonylation metallurgical production
Put and the metering method of carbonyl liquid, receive flow container, transfer measuring tank by configuring and go out flow container, once pressed using transfer measuring tank
The front and rear liquid level difference and unit liquid of liquid highly correspond to the condition of certain volume amount, effectively can accurately measure hydraulic fluid amount, are carbonylation
The accurate metering and control of production cost provide necessary condition in metallurgical production process.
Above-mentioned purpose is realized by following proposal：A kind of metering device in carbonylation metallurgical production, the device include
The rewinding tank of carbonyl liquid material, transfer measuring tank and go out flow container, by the first pipeline communication between rewinding tank and transfer measuring tank, in
Turn measuring tank to be connected by second pipe between flow container with going out, the first control valve group is installed on the first pipeline, installed on second pipe
There is the second control valve group, the first control valve group, the second control valve group form by regulating valve and front and rear stop valve, adjust valve signal
Introduce control system；Rewinding tank is provided with the first air inlet pipe, and the first air inlet pipe is provided with the 3rd control valve group, the installation of transfer measuring tank
There is the second air inlet pipe, the second air inlet pipe is provided with the 4th control valve group, goes out flow container and is provided with the 3rd air inlet pipe, the 3rd air inlet pipe is provided with
5th control valve group, the 3rd control valve group, the 4th control valve group, the 5th control valve group are by regulating valve and front and rear cut-off valve group
Into regulation valve signal introduces control system；Rewinding tank is provided with the first escape pipe, and the first escape pipe is provided with the 6th control valve group,
Transfer measuring tank is provided with the second escape pipe, and the second escape pipe is provided with the 7th control valve group, goes out flow container and be provided with the 3rd escape pipe,
3rd escape pipe is provided with the 8th control valve group, the 6th control valve group, the 7th control valve group, the 8th control valve group by regulating valve and
Front and rear stop valve composition, regulation valve signal introduce control system；Rewinding tank is provided with feed tube, and the 9th control is provided with feed tube
Valve group, go out flow container and be provided with drain pipe, the tenth control valve group is installed on drain pipe；Rewinding tank, transfer measuring tank and go out flow container
On be each configured with primary scene pressure gauge, secondary scene pressure gauge, the 3rd site pressure table and corresponding pressure transmitter, press
Power transmitter signal controls display system in being introduced into；Rewinding tank, transfer measuring tank and go out on flow container to be each configured with first liquid level gauge,
Second liquid level gauge, third liquid level gauge；Feed tube is stretched into rewinding tank tank, drain pipe is stretched into out in flow container tank, first pipeline two
It is respectively protruding into rewinding tank and transfer measuring tank tank, second pipe two is respectively protruding into transfer measuring tank and gone out in flow container tank；In
Turn measuring tank interlude up and down uniformly, sectional area it is equal.
Preferably：The feed tube mouth of pipe goes out flow container tank bottom apart from rewinding tank tank bottom apart from for 100-150mm, drain pipe distance
It is 100-150mm, second apart from being 100-150mm, first pipeline two apart from rewinding tank and transfer measuring tank tank bottom distance
Pipeline two respectively apart from transfer measuring tank and go out flow container tank bottom distance be 100-150mm.
Preferably：First air inlet pipe, the second air inlet pipe, the source of the gas of the 3rd air inlet pipe connection are CO or nitrogen.
Preferably：Transfer measuring tank is one section of hollow cylinder using arc top, arc bottom, stage casing tank body, stage casing cylinder height
3150mm, diameter 4m, second liquid level gauge uses radar level gauge, range 0-3450mm on tank.
A kind of metering device in above-mentioned a kind of carbonylation metallurgical production is to the carbonyl liquid in carbonylation metallurgy continuous production
The method measured, is mainly included the following steps that：
(1) the 9th control valve group 18 is opened, after rewinding tank 1 receives enough feed liquids, opens the 3rd control in the first air inlet pipe
Valve group air inlet, rewinding tank is boosted, boost to the regulating valve of the 3rd control valve group of closing after 0.3-0.4MPa；
(2) the 7th control valve group is opened, pressure release is carried out to transfer measuring tank to pressure-fired 2-4kPa；
(3) the first control valve group between rewinding tank and transfer measuring tank on the first pipeline is opened, transfer measuring tank receives rewinding tank
The carbonyl liquid come, after liquid level reaches 70%-80%, close the regulating valve of the first control valve group；
(4) regulating valve of the 7th control valve group is closed, the 4th control valve group is opened, transfer measuring tank is boosted to 0.3-0.4MPa
The regulating valve of the 4th control valve group is closed afterwards；
(5) the second control valve group on second pipe between flow container and transfer measuring tank is opened out, goes out flow container and receives transfer measuring tank
The carbonyl liquid come；After transfer measuring tank liquid level reaches 20%-30%, the regulating valve of the second control valve group is closed；The 3rd is opened to enter
Tracheae 6 pressurizes to going out flow container 3, and the liquid for using flow container 3 is expelled to point of use from drain pipe 17（Such as evaporator）；
(6) for transfer measuring tank and going out flow container, if pressure occurs declining and liquid is slack-off, can open corresponding to rewinding tank or in
Turn the 3rd control valve group of measuring tank, the 4th control valve group carries out aerating ftercompction；
(7) when storage tank interlude is uniform up and down, liquid level gauge range is Lmm, can be calculated the equivalent Lmm/100 of 1% liquid level, tank
Uniform segment sectional area is Sm among body2, then 1% liquid level be equivalent to（L╳S）Rise, when once fall liquid, transfer measuring tank liquid level is under
Liquid level slippage during drop is a%, then liquid measure of this time falling is [a ╳（L ╳ S)] rise；
(8) configuration control system monitors and automatically generates statistical report form, including level fluctuation maximum of transfer measuring tank
Lmax, minimum value Lmin, liquid level difference L between the two△, a corresponding hydraulic fluid volume V△, add up liquid level difference in a metering cycle
∑L△And corresponding accumulative hydraulic fluid volume ∑ Vi。
The present invention has the advantages that compared with the prior art：The present invention is by configuring transfer measuring tank, reasonable Arrangement
Liquid level gauge level gauging point, liquid level gauge 20-80% measurement range is set to be in storage tank uiform section section, by calculating a hydraulic fluid
Front and rear tank level pressure measures a hydraulic fluid amount, and the output consumption of liquid in some cycles can be completed by adding up each secondary hydraulic fluid amount
Situation, existing electric instrument system automated collection systems data are made full use of, automatically generate statistical report form.Using the apparatus and method,
On the one hand the data statistics task amount of technologists can be significantly reduced；On the other hand, can accurately measure each time
Hydraulic fluid amount, avoid manual operation metering from taking error a little；Meanwhile device configuration is simple, easy to use, data metering is accurate
Reliably, necessary condition is provided to carry out carbonyl liquid production and the progress independent economy accounting of consumption production unit and control.
Brief description of the drawings
Fig. 1 is the system schematic of invention device；
1- rewindings tank, 2- transfers measuring tank, 3- go out flow container, the air inlet pipe of 4- first, the air inlet pipe of 5- second, the air inlet pipe of 6- the 3rd, 7-
3rd control valve group, the control valve groups of 8- the 4th, the control valve groups of 9- the 5th, 10- primary scenes pressure gauge, 11- secondary scenes pressure
Table, the site pressure tables of 12- the 3rd, 13- first liquid level gauges, 14- second liquid level gauges, 15- third liquid level gauges, 16- feed tubes, 17-
Drain pipe, the control valve groups of 18- the 9th, the control valve groups of 19- the tenth, the escape pipes of 20- first, the escape pipes of 21- second, 22- the 3rd go out
Tracheae, the control valve groups of 23- the 6th, the control valve groups of 24- the 7th, the control valve groups of 25- the 8th, the pipelines of 26- first, 27- second pipes,
The control valve groups of 28- first, the control valve groups of 29- second.
Embodiment
As shown in figure 1, the metering device in a kind of carbonylation metallurgical production, the device includes the rewinding tank of carbonyl liquid material
1st, transfer measuring tank 2 and go out flow container 3, connected between rewinding tank 1 and transfer measuring tank 2 by the first pipeline 26, transfer measuring tank 2 is with going out
Connected between flow container 3 by second pipe 27, the first control valve group 28 is installed on first pipeline 26, is provided with second pipe 27
Two control valve groups 29, the first control valve group 28, the second control valve group 29 form by regulating valve and front and rear stop valve, regulating valve letter
Number introduce control system；Rewinding tank 1 is provided with the first air inlet pipe 4, and the first air inlet pipe 4 is provided with the 3rd control valve group 7, transfer metering
Tank 2 is provided with the second air inlet pipe 5, and the second air inlet pipe 5 is provided with the 4th control valve group 8, goes out flow container 3 and is provided with the 3rd air inlet pipe 6, the
Three air inlet pipe 6 are provided with the 5th control valve group 9, and the 3rd control valve group 7, the 4th control valve group 8, the 5th control valve group 9 are by regulation
Valve and front and rear stop valve composition, regulation valve signal introduce control system；Rewinding tank 1 is provided with the first escape pipe 20, the first outlet
Pipe 20 is provided with the 6th control valve group 23, and transfer measuring tank 2 is provided with the second escape pipe 21, and the second escape pipe 21 is provided with the 7th control
Valve group 24, go out flow container 3 and the 3rd escape pipe 22 is installed, the 3rd escape pipe 22 is provided with the 8th control valve group 25, the 6th control valve group
23rd, the 7th control valve group 24, the 8th control valve group 25 form by regulating valve and front and rear stop valve, and regulation valve signal introduces control
System；Rewinding tank 1 is provided with feed tube 16, and the 9th control valve group 18 is provided with feed tube 16, goes out flow container 3 and is provided with drain pipe
17, the tenth control valve group 19 is installed on drain pipe 17；Rewinding tank 1, transfer measuring tank 2 and go out on flow container 3 to be each configured with
One site pressure table 10, secondary scene pressure gauge 11, the 3rd site pressure table 12 and corresponding pressure transmitter, pressure transmitter
Signal controls display system in being introduced into；Rewinding tank 1, transfer measuring tank 2 and go out on flow container 3 to be each configured with first liquid level gauge 13,
Two liquid level gauges 14, third liquid level gauge 15, liquid level signal introduce control system and are shown record；Feed tube 16 stretches into rewinding tank 1
Tank is interior, drain pipe 17 is stretched into out in the tank of flow container 3, the two of the first pipeline 26 is respectively protruding into rewinding tank 1 and the tank of transfer measuring tank 2 is interior,
The two of second pipe 27 is respectively protruding into transfer measuring tank 2 and gone out in the tank of flow container 3；The interlude of transfer measuring tank 2 is uniform up and down, section
Product is equal.
The mouth of pipe of feed tube 16 apart from the tank bottom of rewinding tank 1 distance be 120mm, the distance of drain pipe 17 goes out the tank bottom distance of flow container 3 and is
120mm, the two of the first pipeline 26 are 120mm, the two of second pipe 27 apart from rewinding tank 1 and the tank bottom distance of transfer measuring tank 2
Respectively apart from transfer measuring tank 2 and go out the tank bottom of flow container 3 distance be 120mm.
First air inlet pipe 4, the second air inlet pipe 5, the source of the gas of the 3rd air inlet pipe 6 connection are CO or nitrogen.
For transfer measuring tank 2 using arc top, arc bottom, stage casing tank body be one section of hollow cylinder, stage casing cylinder height 3150mm, directly
Footpath 4m, second liquid level gauge 14 uses radar level gauge, range 0-3450mm on tank.
The method measured using the metering device to the carbonyl liquid in carbonylation metallurgy continuous production, it is main include with
Lower step：
(1) the 9th control valve group 18 is opened, after rewinding tank 1 receives enough feed liquids,（Pipeline pressure before rewinding tank 1 is larger,
The 9th control valve group 18 is not closed, will not cause to flow back, so closing or not closing the 9th control valve group 18）Open first
The air inlet of the 3rd control valve group 7 in air inlet pipe 4, is boosted to rewinding tank 1, and the 3rd control is closed after boosting to 0.3-0.4MPa
The regulating valve of valve group 7；
(2) the 7th control valve group 24 is opened, pressure release is carried out to transfer measuring tank 2 to pressure-fired 2-4kPa；
(3) the first control valve group 28 between rewinding tank 1 and transfer measuring tank 2 on first pipeline 26 is opened, transfer measuring tank 2 receives
The carbonyl liquid of rewinding tank 1, after liquid level reaches 70%-80%, close the regulating valve of the first control valve group 28；
(4) regulating valve of the 7th control valve group 24 is closed, the 4th control valve group 8 is opened, transfer measuring tank 2 is boosted to 0.3-
The regulating valve of the 4th control valve group 8 is closed after 0.4MPa；
(5) the second control valve group 29 on second pipe 27 between flow container 3 and transfer measuring tank 2 is opened out, goes out flow container 3 and receives transfer
The carbonyl liquid of measuring tank 2, after the liquid level of transfer measuring tank 2 reaches 20%-30%, close the regulating valve of the second control valve group 29；
Open the 3rd air inlet pipe 6 to pressurize to going out flow container 3, the liquid for using flow container 3 is expelled to point of use from drain pipe 17（Such as evaporator）；
(6) for transfer measuring tank 2 and going out flow container 3, if pressure occurs declining and liquid is slack-off, can open corresponding to rewinding tank 1
Or the 3rd control valve group 7, the 4th control valve group 8 of transfer measuring tank 2 carry out aerating ftercompction.
(7) configuration control system monitors and automatically generates statistical report form, including level fluctuation maximum of transfer measuring tank
Value Lmax, minimum value Lmin, liquid level difference L between the two△, a corresponding hydraulic fluid volume V△, add up liquid level difference in a metering cycle
It is worth ∑ L△And corresponding accumulative hydraulic fluid volume ∑ Vi。
(8) a diameter of 4m of uniform segment among storage tank, when liquid level gauge range is 0-3450mm, can be calculated 1% liquid level etc.
34.5mm is imitated, tank body uniform segment sectional area is 12.56m2, then 1% liquid level be equivalent to 433.32L.When once liquid, transfer are measured
Tank liquor position from 75% be reduced to 25% when, liquid level difference 50%, then this time fall liquid measure be 50 × 433.32L=21.666m3。
Claims (5)
- A kind of 1. metering device in carbonylation metallurgical production, it is characterised in that：The device includes the rewinding tank of carbonyl liquid material （1）, transfer measuring tank（2）With go out flow container（3）, rewinding tank（1）With transfer measuring tank（2）Between by the first pipeline（26）Connection, in Turn measuring tank（2）With going out flow container（3）Between by second pipe（27）Connection, the first pipeline（26）On the first control valve group is installed （28）, second pipe（27）On the second control valve group is installed（29）, the first control valve group（28）, the second control valve group（29） It is made up of regulating valve and front and rear stop valve, regulation valve signal introduces control system；Rewinding tank（1）First air inlet pipe is installed（4）, First air inlet pipe（4）Provided with the 3rd control valve group（7）, transfer measuring tank（2）Second air inlet pipe is installed（5）, the second air inlet pipe （5）Provided with the 4th control valve group（8）, go out flow container（3）3rd air inlet pipe is installed（6）, the 3rd air inlet pipe（6）Provided with the 5th control Valve group（9）, the 3rd control valve group（7）, the 4th control valve group（8）, the 5th control valve group（9）By regulating valve and front and rear stop valve Composition, regulation valve signal introduce control system；Rewinding tank（1）First escape pipe is installed（20）, the first escape pipe（20）It is provided with 6th control valve group（23）, transfer measuring tank（2）Second escape pipe is installed（21）, the second escape pipe（21）Provided with the 7th control Valve group（24）, go out flow container（3）3rd escape pipe is installed（22）, the 3rd escape pipe（22）Provided with the 8th control valve group（25）, the Six control valve groups（23）, the 7th control valve group（24）, the 8th control valve group（25）Form, adjust by regulating valve and front and rear stop valve Save valve signal and introduce control system；Rewinding tank（1）Provided with feed tube（16）, feed tube（16）On the 9th control valve group is installed （18）, go out flow container（3）It is provided with drain pipe（17）, drain pipe（17）On the tenth control valve group is installed（19）；Rewinding tank（1）、 Transfer measuring tank（2）With go out flow container（3）On be each configured with primary scene pressure gauge（10）, secondary scene pressure gauge（11）, Three site pressure tables（12）With corresponding pressure transmitter, pressure transmitter signal controls display system in being introduced into；Rewinding tank（1）、 Transfer measuring tank（2）With go out flow container（3）On be each configured with first liquid level gauge（13）, second liquid level gauge（14）, third liquid level gauge （15）；Feed tube（16）Stretch into rewinding tank（1）Tank is interior, drain pipe（17）Stretch into out flow container（3）Tank is interior, the first pipeline（26）Two It is respectively protruding into rewinding tank（1）With transfer measuring tank（2）Tank is interior, second pipe（27）Two is respectively protruding into transfer measuring tank（2）With Go out flow container（3）In tank；Transfer measuring tank（2）Interlude is uniform up and down, sectional area is equal.
- 2. the metering device in a kind of carbonylation metallurgical production as claimed in claim 1, it is characterised in that：Feed tube（16）The mouth of pipe Apart from rewinding tank（1）Tank bottom distance is 100-150mm, drain pipe（17）Distance goes out flow container（3）Tank bottom distance for 100-150mm, First pipeline（26）Two is apart from rewinding tank（1）With transfer measuring tank（2）Tank bottom distance is 100-150mm, second pipe （27）Two is respectively apart from transfer measuring tank（2）With go out flow container（3）Tank bottom distance is 100-150mm.
- 3. the metering device in a kind of carbonylation metallurgical production as claimed in claim 1, it is characterised in that：First air inlet pipe（4）、 Second air inlet pipe（5）, the 3rd air inlet pipe（6）The source of the gas of connection is CO or nitrogen.
- 4. the metering device in a kind of carbonylation metallurgical production as claimed in claim 1, it is characterised in that：Transfer measuring tank（2） Using arc top, arc bottom, stage casing tank body is one section of hollow cylinder, stage casing cylinder height 3150mm, diameter 4m, second liquid level gauge on tank （14）Using radar level gauge, range 0-3450mm.
- 5. a kind of usage right requires that the metering device in a kind of carbonylation metallurgical production described in one of 1-4 is metallurgical to carbonylation continuous The method that carbonyl liquid in production is measured, is mainly included the following steps that：(1) the 9th control valve group is opened（18）, rewinding tank（1）After receiving enough feed liquids, the first air inlet pipe is opened（4）On Three control valve groups（7）Air inlet, to rewinding tank（1）Boosted, the 3rd control valve group is closed after boosting to 0.3-0.4MPa（7）'s Regulating valve；(2) the 7th control valve group is opened（24）, to transfer measuring tank（2）Pressure release is carried out to pressure-fired 2-4kPa；(3) rewinding tank 1 and transfer measuring tank are opened（2）Between the first pipeline（26）On the first control valve group（28）, transfer metering Tank（2）Receive rewinding tank（1）The carbonyl liquid come, after liquid level reaches 70%-80%, close the first control valve group（28）Regulation Valve；(4) the 7th control valve group is closed（24）Regulating valve, open the 4th control valve group（8）, make transfer measuring tank（2）Boost to The 4th control valve group is closed after 0.3-0.4MPa（8）Regulating valve；(5) flow container is opened out（3）With transfer measuring tank（2）Between second pipe（27）On the second control valve group（29）, go out flow container （3）Receive transfer measuring tank（2）The carbonyl liquid come；Transfer measuring tank（2）After liquid level reaches 20%-30%, the second control is closed Valve group（29）Regulating valve；Open the 3rd air inlet pipe（6）To going out flow container（3）Pressurization, uses flow container（3）Liquid from drain pipe （17）It is expelled to point of use；(6) for transfer measuring tank（2）With go out flow container（3）If pressure occurs declining and liquid is slack-off, corresponding rewinding can be opened Tank（1）Or transfer measuring tank（2）The 3rd control valve group（7）, the 4th control valve group（8）Carry out aerating ftercompction；(7) when storage tank interlude is uniform up and down, liquid level gauge range is Lmm, can be calculated the equivalent Lmm/100 of 1% liquid level, tank Uniform segment sectional area is Sm among body2, then 1% liquid level be equivalent to（L╳S）Rise, when once fall liquid, transfer measuring tank liquid level is under Liquid level slippage during drop is a%, then liquid measure of this time falling is [a ╳（L ╳ S)] rise；(8) configuration control system monitors and automatically generates statistical report form, including level fluctuation maximum of transfer measuring tank Lmax, minimum value Lmin, liquid level difference L between the two△, a corresponding hydraulic fluid volume V△, add up liquid level difference in a metering cycle ∑L△And corresponding accumulative hydraulic fluid volume ∑ Vi。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108864239A (en) * | 2018-05-31 | 2018-11-23 | 湖北民生生物医药有限公司 | A kind of diene ring-opening process control system and its application method |
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| CN205368459U (en) * | 2016-01-13 | 2016-07-06 | 赣州湛海工贸有限公司 | Be used for metallurgical extraction separator |
| CN205372082U (en) * | 2016-02-29 | 2016-07-06 | 横峰县南方有色金属有限公司 | Singly advance many precise measurement diverging device |
| CN106338314A (en) * | 2016-09-21 | 2017-01-18 | 北京瑞思达化工设备有限公司 | Control method for powdery solid material metering |
| CN207471133U (en) * | 2017-11-17 | 2018-06-08 | 金川集团股份有限公司 | A kind of metering device in carbonylation metallurgical production |
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| CN108864239A (en) * | 2018-05-31 | 2018-11-23 | 湖北民生生物医药有限公司 | A kind of diene ring-opening process control system and its application method |
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