CN201493087U - Propylene feeding automatic control device - Google Patents
Propylene feeding automatic control device Download PDFInfo
- Publication number
- CN201493087U CN201493087U CN2009203074641U CN200920307464U CN201493087U CN 201493087 U CN201493087 U CN 201493087U CN 2009203074641 U CN2009203074641 U CN 2009203074641U CN 200920307464 U CN200920307464 U CN 200920307464U CN 201493087 U CN201493087 U CN 201493087U
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- CN
- China
- Prior art keywords
- propylene
- fine
- refined
- fine propylene
- feeding
- 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.)
- Expired - Fee Related
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses a propylene feeding automatic control device which comprises a refined propylene container, wherein the refined propylene container is connected with a refined propylene feeding pump, a refined propylene flow regulating valve, a catalyst feeding tank and a polymerization kettle in sequence, and a refined propylene flow controller is arranged between the refined propylene feeding pump and the refined propylene flow regulating valve and used for directly controlling the refined propylene flow regulating valve; and the refined propylene container and the refined propylene feeding pump forms a loop, and a refined propylene pump discharge return valve is arranged on the loop. The utility model has the advantages of more accurate measurement, short feeding time and fully-automatic accurate control to propylene feeding during the batch liquid bulk polypropylene production.
Description
Technical field
The utility model relates to a kind of automaton, especially relates to the reinforced automaton of a kind of batch liquid bulk polymerization polypropylene production technology propylene.
Background technology
Propylene amount in the accurately metering input polymeric kettle is the key of batch polypropylene plant production process.Inventory is many, and initial reaction stage pressure sharply rises, and material reacts blocking pipe in process pipelines; Inventory is few, reacts too drastic and easy caking, causes frequent clear still, influences economic benefit.
In the prior art, the reinforced common employing of batch liquid bulk polymerization polypropylene production technology propylene is manually operated, because artificial restriction is difficult to guarantee the accurate and just right of propylene inventory.
The utility model content
The utility model has overcome shortcoming of the prior art, a kind of batch liquid bulk polymerization polypropylene production technology propylene automaton that feeds in raw material is provided, adopt the mass flowmenter metering of feeding in raw material, reinforced simultaneously process adopts the DCS sequential programme to control, thereby realizes the device of the reinforced control of full automatic propylene.
The technical solution of the utility model is: a kind of propylene automaton that feeds in raw material, comprise the fine propylene jar, described fine propylene jar is connected successively with fine propylene feeding pump, fine propylene flow control valve and catalyst feed pot, polymeric kettle, be provided with the fine propylene flow controller between described fine propylene feeding pump and fine propylene flow control valve, described flow controller is directly controlled the fine propylene flow control valve.
Described fine propylene jar and fine propylene feeding pump constitute a loop, and this loop is provided with fine propylene fine propylene pump discharge return valve.
Compared with prior art, the utility model has the advantages that: because propylene is easy to generate gasification with the influence of environment temperature, pressure, summer is particularly serious.So system adopts the fine propylene flow controller that is not subjected to temperature, pressure influence to measure in design, taked to prevent control devices such as gasification and constant current be reinforced simultaneously, make metering more accurate, the reinforced time is short.
Reinforced process is controlled by the DCS sequential programme.When beginning when reinforced, the stop return valve, will regulate valve position be set to about 40% also two charge doors of automatic inspection whether stop up; When reinforced, regulating loop is set to automatically; When reinforced, return valve is opened, and allows propylene reflux, and builds the pressure gasification and cause pump not go up amount to avoid propylene pump.Therefore, realized the reinforced full-automatic accurately control of propylene in the batch liquid bulk polymerization polypropylene production process.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1, a kind of propylene automaton that feeds in raw material comprises fine propylene feeding pump 1, fine propylene flow controller 2, fine propylene flow control valve 3, fine propylene jar 5, fine propylene pump discharge return valve 7, catalyst feed pot 9, activator feed pot 10, polymeric kettle 15.
Fine propylene jar 5, fine propylene feeding pump 1, fine propylene flow control valve 3, catalyst feed pot 9, polymeric kettle 15 connect successively, between fine propylene feeding pump 1 and fine propylene flow control valve 3 fine propylene flow controller 2 is set, flow controller 2 is directly controlled fine propylene flow control valve 3.Activator feed pot 10 and catalyst feed pot 9 and be connected in fine propylene flow control valve 3 and polymeric kettle 15 between.
Fine propylene jar 5 and fine propylene feeding pump 1 constitute a loop, and this loop is provided with fine propylene fine propylene pump discharge return valve 7.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. the reinforced automaton of a propylene, comprise the fine propylene jar, described fine propylene jar is connected successively with fine propylene feeding pump, fine propylene flow control valve and catalyst feed pot, polymeric kettle, it is characterized in that: be provided with the fine propylene flow controller between described fine propylene feeding pump and fine propylene flow control valve, described flow controller is directly controlled the fine propylene flow control valve.
2. the propylene according to claim 1 automaton that feeds in raw material is characterized in that: described fine propylene jar and fine propylene feeding pump constitute a loop, and this loop is provided with fine propylene fine propylene pump discharge return valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203074641U CN201493087U (en) | 2009-08-05 | 2009-08-05 | Propylene feeding automatic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203074641U CN201493087U (en) | 2009-08-05 | 2009-08-05 | Propylene feeding automatic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201493087U true CN201493087U (en) | 2010-06-02 |
Family
ID=42436297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203074641U Expired - Fee Related CN201493087U (en) | 2009-08-05 | 2009-08-05 | Propylene feeding automatic control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201493087U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104382216A (en) * | 2014-11-10 | 2015-03-04 | 山东中烟工业有限责任公司 | Constant-pressure linear perfuming system with double closed tanks and control method |
| CN105757000A (en) * | 2016-04-25 | 2016-07-13 | 张家港市华昌新材料科技有限公司 | Automatic propylene backflow adjusting method |
| CN105781954A (en) * | 2016-04-25 | 2016-07-20 | 张家港市华昌新材料科技有限公司 | Propylene pump delivery constant pressure regulating method |
| CN114904461A (en) * | 2022-04-07 | 2022-08-16 | 山东东方宏业化工有限公司 | Device for reducing polypropylene dust |
-
2009
- 2009-08-05 CN CN2009203074641U patent/CN201493087U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104382216A (en) * | 2014-11-10 | 2015-03-04 | 山东中烟工业有限责任公司 | Constant-pressure linear perfuming system with double closed tanks and control method |
| CN104382216B (en) * | 2014-11-10 | 2016-07-27 | 山东中烟工业有限责任公司 | A kind of double; two linear flavoring system of vapor tight tank constant voltage and control method |
| CN105757000A (en) * | 2016-04-25 | 2016-07-13 | 张家港市华昌新材料科技有限公司 | Automatic propylene backflow adjusting method |
| CN105781954A (en) * | 2016-04-25 | 2016-07-20 | 张家港市华昌新材料科技有限公司 | Propylene pump delivery constant pressure regulating method |
| CN114904461A (en) * | 2022-04-07 | 2022-08-16 | 山东东方宏业化工有限公司 | Device for reducing polypropylene dust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20140805 |
|
| EXPY | Termination of patent right or utility model |