CN105820322A - Spray EG circular supply device for final polymerization tank - Google Patents
Spray EG circular supply device for final polymerization tank Download PDFInfo
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- CN105820322A CN105820322A CN201610330706.3A CN201610330706A CN105820322A CN 105820322 A CN105820322 A CN 105820322A CN 201610330706 A CN201610330706 A CN 201610330706A CN 105820322 A CN105820322 A CN 105820322A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/785—Preparation processes characterised by the apparatus used
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention relates to a spray EG circular supply device for a final polymerization tank .The spray EG circular supply device is characterized by comprising a plate heat exchanger (9), a hot well overflow tank (10), a continuous polymerization EG tank (11), a slurry mixing tank (12), the final polymerization tank (13), a final polymerization first-level spray device (14), a final polymerization second-level spray device (15), a final polymerization hot well (16), a final polymerization preheater (17), a final polymerization first-level filter set (18), a final polymerization tube type heat exchanger set (19), a final polymerization cold well (20), a final polymerization second-level filter set (21), a stable EG tank (22), a fresh EG tank (23) and a vacuumizing unit (24) .The spray EG circular supply device has the advantages that spray EG is recycled, and the utilization efficiency is improved .
Description
Technical field
The present invention relates to the spray EG circulation supply equipment of a kind of final polymerization tank.
Background technology
Polyester belongs to macromolecular compound, is to be produced polyethylene terephthalate (PET) by p-phthalic acid and ethylene glycol (EG) through polycondensation, and part PET therein is ultimately generated by underwater cutpellet again.In producing PET Process, need when prepolymerization reaction still and final polymerization tank carry out evacuation spray to use EG spray, the EG amount used due to EG spray is bigger, therefore seeking one and spray EG is circulated use, the spray EG circulation supply equipment of the final polymerization tank improving utilization ratio is particularly important.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that spray EG is circulated use by one, improve the spray EG circulation supply equipment of the final polymerization tank of utilization ratio.
The object of the present invention is achieved like this:
A kind of spray EG circulation supply equipment of final polymerization tank, it is characterized in that it includes plate type heat exchanger, hot well overflow tank, continuous polymerization EG tank, slurry mix tank, final polymerization tank, eventually poly-one-level spray equipment, eventually poly-two grades of spray equipments, whole heat build-up well, eventually poly-preheater, eventually poly-grade one filter group, eventually poly-pipe heat exchanger group, the most poly-cold well, eventually poly-secondary filter group, stablizes EG tank, fresh EG tank and evacuation unit
Wherein:
The top of final polymerization tank is connected by poly-vacuum lead eventually with the top of poly-one-level spray equipment eventually, the bottom of poly-two grades of spray equipments is connected pipeline connection with the hypomere of poly-one-level spray equipment eventually by spray eventually, the top of poly-two grades of spray equipments is connected evacuation unit with the top of poly-one-level spray equipment eventually eventually
Discharging opening bottom poly-one-level spray equipment connects the charging aperture at whole heat build-up well top by pipeline eventually, the discharging opening of whole heat build-up bottom connects the charging aperture at poly-preheater top eventually by poly-screw rod conveyor eventually, the discharging opening of whole aboveground section of heat build-up connects the charging aperture at poly-preheater top eventually also by pipeline, the first discharging opening bottom poly-preheater connects the charging aperture of poly-filter group eventually by pipeline eventually, the discharging opening of poly-filter group connects the charging aperture of poly-pipe heat exchanger eventually by pipeline eventually, the discharging opening of poly-pipe heat exchanger connects the charging aperture of poly-one-level spray equipment eventually by pipeline eventually,
Discharging opening bottom poly-two grades of spray equipments connects the charging aperture at poly-Leng Jing top eventually by pipeline eventually, the discharging opening of the most poly-cold bottom connects main pipe rail, three delivery pumps of parallel connection it are provided with on this main pipe rail, this main pipe rail at three delivery pump rears separates again the charging aperture of two bye-pass connecting plate type heat exchangers, wherein a bye-pass is connected to the charging aperture of continuous polymerization EG tank top also by adapter roadside, side, the discharging opening of plate type heat exchanger connects the charging aperture of poly-two grades of spray equipments eventually
The overfall of poly-preheater hypomere connects the charging aperture of hot well overflow tank by pipeline eventually,
Discharging opening bottom the second discharging opening, the discharging opening of whole poly-screw rod transmission motor spindle and hot well overflow tank bottom poly-preheater all connects a bye-pass eventually, these three bye-passes are merged into a main pipe rail and then lead to the charging aperture of continuous polymerization EG tank top, a bye-pass is also separated on this main pipe rail, this bye-pass connects thick EG tank
Discharge gate bottom poly-grade one filter group is connected the charging aperture at whole heat build-up well top respectively with the discharge gate bottom poly-pipe heat exchanger group eventually by a bye-pass eventually,
The discharging opening of continuous polymerization EG pot bottom is connected by a bye-pass respectively with the overfall of continuous polymerization EG tank and merges into main pipe rail, this main pipe rail connects the charging aperture of slurry mix tank, connect the refluxing opening of continuous polymerization EG tank also by reflux pipe on this main pipe rail
Eventually poly-grade one filter group also separates a bye-pass to the pipeline between poly-pipe heat exchanger group eventually, this bye-pass by the charging aperture of stable connection EG tank top after poly-secondary filter group eventually,
Three bye-passes are separated on the main pipe rail that the discharging opening of fresh EG tank connects, Article 1, bye-pass is connected on the bye-pass that the most poly-cold well discharging opening connects, Article 2 bye-pass is connected to the charging aperture at whole heat build-up well top, and Article 3 bye-pass is connected to the charging aperture of stable EG tank top.
Eventually poly-grade one filter group be parallel with two end poly-grade one filter；
Eventually poly-pipe heat exchanger group have three end poly-pipe heat exchanger, three end poly-pipe heat exchanger by the break-make control series, parallel of multiple shutoff valves or connection in series-parallel syntagmatic；
Eventually poly-secondary filter group be parallel with two end poly-secondary filter；
Plate type heat exchanger has been arranged in parallel three plate type heat exchangers.
Compared with prior art, the invention has the beneficial effects as follows:
The spray EG circulation supply equipment of final polymerization tank of the present invention has spray EG is circulated use, the advantage improving utilization ratio, and has the advantage that auto-adjustment control performance is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the spray EG circulation supply equipment of final polymerization tank of the present invention.
Detailed description of the invention
See Fig. 1, the spray EG circulation supply equipment of a kind of final polymerization tank that the present invention relates to, it includes plate type heat exchanger 9, hot well overflow tank 10, continuous polymerization EG tank 11, slurry mix tank 12, final polymerization tank 13, eventually poly-one-level spray equipment 14, eventually poly-two grades of spray equipments 15, whole heat build-up well 16, eventually poly-preheater 17, eventually poly-grade one filter group 18, eventually poly-pipe heat exchanger group 19, the most poly-cold well 20, eventually poly-secondary filter group 21, stablizes EG tank 22, fresh EG tank 23 and evacuation unit 24.
Poly-one-level spray equipment 14 includes that upper and lower two-layer sprays eventually；
Poly-two grades of spray equipments 15 include that upper and lower two-layer sprays eventually；
Eventually poly-grade one filter group 18 be parallel with two end poly-grade one filter；
Eventually poly-pipe heat exchanger group 19 have three end poly-pipe heat exchanger, three end poly-pipe heat exchanger by the break-make control series, parallel of multiple shutoff valves or connection in series-parallel syntagmatic；
Eventually poly-secondary filter group 21 be parallel with two end poly-secondary filter；
Plate type heat exchanger 9 has been arranged in parallel three plate type heat exchangers.
Wherein:
The top of final polymerization tank 13 is connected by poly-vacuum lead eventually with the top of poly-one-level spray equipment 14 eventually, the bottom of poly-two grades of spray equipments 15 is connected pipeline connection with the hypomere of poly-one-level spray equipment 14 eventually by spray eventually, and the top of poly-two grades of spray equipments 15 is connected evacuation unit 24 with the top of poly-one-level spray equipment 14 eventually eventually.
Discharging opening bottom poly-one-level spray equipment 14 connects the charging aperture at whole heat build-up well 16 top by pipeline eventually, discharging opening bottom whole heat build-up well 16 connects the charging aperture at poly-preheater 17 top eventually by poly-screw rod conveyor eventually, the discharging opening of whole heat build-up well 16 epimere connects the charging aperture at poly-preheater 17 top eventually also by pipeline, the first discharging opening bottom poly-preheater 17 connects the charging aperture of poly-filter group 18 eventually by pipeline eventually, two delivery pumps it have been arranged in parallel on this pipeline, the discharging opening of poly-filter group 18 connects the charging aperture of poly-pipe heat exchanger 19 eventually by pipeline eventually, the discharging opening of poly-pipe heat exchanger 19 connects the charging aperture of poly-one-level spray equipment 14 eventually by pipeline eventually.
Discharging opening bottom poly-two grades of spray equipments 15 connects the charging aperture at the most poly-cold well 20 top by pipeline eventually, discharging opening bottom the most poly-cold well 20 connects main pipe rail, three delivery pumps of parallel connection it are provided with on this main pipe rail, this main pipe rail at three delivery pump rears separates again the charging aperture of two bye-pass connecting plate type heat exchangers 9, wherein a bye-pass is connected to the charging aperture at continuous polymerization EG tank 11 top also by adapter roadside, side, and the discharging opening of plate type heat exchanger 9 connects the charging aperture of poly-two grades of spray equipments 15 eventually.
The overfall of poly-preheater 17 hypomere connects the charging aperture of hot well overflow tank 10 by pipeline eventually.
Discharging opening bottom the second discharging opening, the discharging opening of whole poly-screw rod transmission motor spindle and hot well overflow tank 10 bottom poly-preheater 17 all connects a bye-pass eventually, these three bye-passes are merged into a main pipe rail and then lead to the charging aperture at continuous polymerization EG tank 11 top, a delivery pump it is provided with on this main pipe rail, also separating a bye-pass on this main pipe rail at delivery pump rear, this bye-pass connects thick EG tank.
Discharge gate bottom poly-grade one filter group 18 is connected the charging aperture at whole heat build-up well 16 top respectively with the discharge gate bottom poly-pipe heat exchanger group 19 eventually by a bye-pass eventually.
Discharging opening bottom continuous polymerization EG tank 11 is connected by a bye-pass respectively with the overfall of continuous polymerization EG tank 11 and merges into main pipe rail, two delivery pumps of parallel connection it are provided with on this main pipe rail, this main pipe rail at delivery pump rear connects the charging aperture of slurry mix tank 12, and this main pipe rail at delivery pump rear connects the refluxing opening of continuous polymerization EG tank 11 also by reflux pipe.
Eventually poly-grade one filter group 18 also separates a bye-pass to the pipeline between poly-pipe heat exchanger group 19 eventually, and this bye-pass is by the charging aperture at stable connection EG tank 22 top after poly-secondary filter group 21 eventually.
Three bye-passes are separated on the main pipe rail that the discharging opening of fresh EG tank 23 connects, Article 1, bye-pass is connected on the bye-pass that the most poly-cold well 20 discharging opening connects, Article 2 bye-pass is connected to the charging aperture at whole heat build-up well 16 top, and Article 3 bye-pass is connected to the charging aperture at stable EG tank 22 top.
Claims (5)
1. the spray EG circulation supply equipment of a final polymerization tank, it is characterized in that it includes plate type heat exchanger (9), hot well overflow tank (10), continuous polymerization EG tank (11), slurry mix tank (12), final polymerization tank (13), poly-one-level spray equipment (14) eventually, poly-two grades of spray equipments (15) eventually, whole heat build-up well (16), poly-preheater (17) eventually, poly-grade one filter group (18) eventually, poly-pipe heat exchanger group (19) eventually, the most poly-cold well (20), poly-secondary filter group (21) eventually, stablize EG tank (22), fresh EG tank (23) and evacuation unit (24),
Wherein:
The top of final polymerization tank (13) is connected by poly-vacuum lead eventually with the top of poly-one-level spray equipment (14) eventually, the bottom of poly-two grades of spray equipments (15) is connected pipeline connection with the hypomere of poly-one-level spray equipment (14) eventually by spray eventually, the top of poly-two grades of spray equipments (15) is connected evacuation unit (24) with the top of poly-one-level spray equipment (14) eventually eventually
The discharging opening of poly-one-level spray equipment (14) bottom connects the charging aperture at whole heat build-up well (16) top by pipeline eventually, the discharging opening of whole heat build-up well (16) bottom connects the charging aperture at poly-preheater (17) top eventually by poly-screw rod conveyor eventually, the discharging opening of whole heat build-up well (16) epimere connects the charging aperture at poly-preheater (17) top eventually also by pipeline, first discharging opening of poly-preheater (17) bottom connects the charging aperture of poly-filter group (18) eventually by pipeline eventually, the discharging opening of poly-filter group (18) connects the charging aperture of poly-pipe heat exchanger (19) eventually by pipeline eventually, the discharging opening of poly-pipe heat exchanger (19) connects the charging aperture of poly-one-level spray equipment (14) eventually by pipeline eventually,
The discharging opening of the most poly-two grades of spray equipments (15) bottom connects the charging aperture at the most poly-cold well (20) top by pipeline, the discharging opening of the most poly-cold well (20) bottom connects main pipe rail, three delivery pumps of parallel connection it are provided with on this main pipe rail, this main pipe rail at three delivery pump rears separates again the charging aperture of two bye-passes connecting plate type heat exchanger (9), wherein a bye-pass is connected to the charging aperture at continuous polymerization EG tank (11) top also by adapter roadside, side, it is provided with the first fluid level control valve on other adapter road, the discharging opening of plate type heat exchanger (9) connects the charging aperture of poly-two grades of spray equipments (15) eventually,
The overfall of poly-preheater (17) hypomere connects the charging aperture of hot well overflow tank (10) by pipeline eventually,
The discharging opening of the second discharging opening of poly-preheater (17) bottom, eventually poly-screw rod transmission motor spindle and the discharging opening of hot well overflow tank (10) bottom all connect a bye-pass eventually, these three bye-passes are merged into a main pipe rail and then lead to the charging aperture at continuous polymerization EG tank (11) top, a bye-pass is also separated on this main pipe rail, this bye-pass connects thick EG tank
The discharge gate of poly-grade one filter group (18) bottom is connected the charging aperture at whole heat build-up well (16) top respectively with the discharge gate of poly-pipe heat exchanger group (19) bottom eventually by a bye-pass eventually,
The discharging opening of continuous polymerization EG tank (11) bottom is connected by a bye-pass respectively with the overfall of continuous polymerization EG tank (11) and merges into main pipe rail, this main pipe rail connects the charging aperture of slurry mix tank (12), connect the refluxing opening of continuous polymerization EG tank (11) also by reflux pipe on this main pipe rail
Eventually poly-grade one filter group (18) also separates a bye-pass to the pipeline between poly-pipe heat exchanger group (19) eventually, this bye-pass by the charging aperture at poly-secondary filter group (21) stable connection EG tank (22) top afterwards eventually,
Three bye-passes are separated on the main pipe rail that the discharging opening of fresh EG tank (23) connects, Article 1, bye-pass is connected on the bye-pass that the most poly-cold well (20) discharging opening connects, Article 2 bye-pass is connected to the charging aperture at whole heat build-up well (16) top, and Article 3 bye-pass is connected to the charging aperture at stable EG tank (22) top.
The spray EG circulation supply equipment of a kind of final polymerization tank the most according to claim 1, it is characterised in that eventually poly-grade one filter group (18) be parallel with two end poly-grade one filter.
The spray EG circulation supply equipment of a kind of final polymerization tank the most according to claim 1, it is characterized in that eventually poly-pipe heat exchanger group (19) have three end poly-pipe heat exchanger, three end poly-pipe heat exchanger by the break-make control series, parallel of multiple shutoff valves or connection in series-parallel syntagmatic.
The spray EG circulation supply equipment of a kind of final polymerization tank the most according to claim 1, it is characterised in that eventually poly-secondary filter group (21) be parallel with two end poly-secondary filter.
The spray EG circulation supply equipment of a kind of final polymerization tank the most according to claim 1, it is characterised in that plate type heat exchanger (9) has been arranged in parallel three plate type heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330706.3A CN105820322A (en) | 2016-05-18 | 2016-05-18 | Spray EG circular supply device for final polymerization tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330706.3A CN105820322A (en) | 2016-05-18 | 2016-05-18 | Spray EG circular supply device for final polymerization tank |
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| Publication Number | Publication Date |
|---|---|
| CN105820322A true CN105820322A (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610330706.3A Pending CN105820322A (en) | 2016-05-18 | 2016-05-18 | Spray EG circular supply device for final polymerization tank |
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| CN (1) | CN105820322A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032331A (en) * | 2015-08-03 | 2015-11-11 | 江苏兴业塑化股份有限公司 | Spraying EG circulating supply control device of prepolymerization reaction kettle |
| CN105032332A (en) * | 2015-08-03 | 2015-11-11 | 江阴济化新材料有限公司 | Spray EG circulating supply device of prepolymerization reaction still |
-
2016
- 2016-05-18 CN CN201610330706.3A patent/CN105820322A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032331A (en) * | 2015-08-03 | 2015-11-11 | 江苏兴业塑化股份有限公司 | Spraying EG circulating supply control device of prepolymerization reaction kettle |
| CN105032332A (en) * | 2015-08-03 | 2015-11-11 | 江阴济化新材料有限公司 | Spray EG circulating supply device of prepolymerization reaction still |
Non-Patent Citations (1)
| Title |
|---|
| 海关总署加工贸易及保税监管司: "《加工贸易单耗标准实务手册 6》", 31 December 2011, 中国海关出版社 * |
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Application publication date: 20160803 |