CN108357882A - A kind of PTA powders carrier bar transport system - Google Patents
A kind of PTA powders carrier bar transport system Download PDFInfo
- Publication number
- CN108357882A CN108357882A CN201810112708.4A CN201810112708A CN108357882A CN 108357882 A CN108357882 A CN 108357882A CN 201810112708 A CN201810112708 A CN 201810112708A CN 108357882 A CN108357882 A CN 108357882A
- Authority
- CN
- China
- Prior art keywords
- chain conveyor
- carrier bar
- pta
- transport system
- pipeline chain
- 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.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 35
- 239000000428 dust Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000005453 pelletization Methods 0.000 claims abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 35
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000002045 lasting effect Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 30
- 230000005540 biological transmission Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000021050 feed intake Nutrition 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/185—Preventing escape of dust by means of non-sealed systems
- B65G69/186—Preventing escape of dust by means of non-sealed systems with aspiration means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention discloses a kind of PTA powders carrier bar transport systems, it includes feeding system, dust pelletizing system and transport system, the feeding system includes feeding groove, dust pelletizing system includes deduster and dedusting fan, and transport system includes sequentially connected first level pipeline chain conveyor, the second vertical pipeline chain conveyor and the horizontal pipeline chain conveyor of third；Manual material feeding bucket is provided at the top of the feeding groove, side wall is equipped with tank car discharge port, and bottom is connect with the feed end of first level pipeline chain conveyor；The deduster is arranged in the side of Manual material feeding bucket, and deduster bottom is connect with feeding groove, and top is connect in outdoor dedusting fan by pipeline with being arranged, and the discharge end lower part of the horizontal pipeline chain conveyor of the third is connected with PTA filler bins.PTA powders carrier bar transport system provided by the invention is simple for process, of low cost, safe and efficient, easily controllable, realizes the lasting and long-distance sand transport of PTA powders, ensure that production stable operation.
Description
【Technical field】
The invention belongs to industrial chemicals conveying equipment technical fields, more particularly relate to a kind of PTA powders carrier bar transport system.
【Background technology】
P-phthalic acid（PTA it is) primary raw material for producing polyester fiber, resin, film and containers resin, is answered extensively
For every field such as chemical fibre, container, packaging, film productions.But with the fast development of China's oil chemical industry, polyester
Plant-scale continuous expansion, the demand of PTA powders is increasing, therefore requirement of the people to polyester device is also increasingly
It is high.PTA powder carries as the important link in polyester production process, how to realize that its is safe efficient, conveying for stablizing by
Gradually become chemical industry focus of attention.
Currently, in chemical industry PET industry, existing PTA powder carries are to be compressed nitrogen using roots blower mostly
Geldart-D particle is carried out by power of nitrogen using rotary valve afterwards, but with the extension of fed distance, nitrogen delivery pressure can be by
Gradually reduce, unstable to easily cause PTA powder carries, this not only greatly reduces transfer efficiency, influences manufacturing schedule, and
And can also aggravate the use of nitrogen and energy consumption in transmission process, it is unfavorable for energy conservation and environmental protection.Therefore exploitation design it is a kind of it is simple for process,
Environment-friendly high-efficiency, safety economy, easily controllable PTA powder delivery systems have been imperative.
【Invention content】
The problem to be solved in the present invention be in view of the shortcomings of the prior art, provide a kind of simple for process, environment-friendly high-efficiency, safety economy,
Easily controllable PTA powder carrier bar transport systems.
The technical solution adopted by the present invention is as follows：A kind of PTA powders carrier bar transport system, it includes feeding system, dedusting
System and transport system, the feeding system include feeding groove, and dust pelletizing system includes deduster and dedusting fan, transport system
Including sequentially connected first level pipeline chain conveyor, the second vertical pipeline chain conveyor and the horizontal pipeline chain conveyor of third；It is described
Feeding groove at the top of be provided with Manual material feeding bucket, side wall is equipped with tank car discharge port, bottom and first level pipeline chain conveyor into
Expect end connection；The deduster is arranged in the side of Manual material feeding bucket, and deduster bottom is connect with feeding groove, and top passes through pipe
Road is connect in outdoor dedusting fan with being arranged；The discharge end of the first level pipeline chain conveyor and the second vertical tube chain are defeated
The feed end of machine is sent to connect, the discharge end of the second vertical pipeline chain conveyor is connect with the feed end of the horizontal pipeline chain conveyor of third,
The discharge end lower part of the horizontal pipeline chain conveyor of the third is connected with PTA filler bins.
Specifically, the number of the Manual material feeding bucket is two.
Specifically, the deduster surface is equipped with blowback nitrogen through hole, the blowback nitrogen through hole is connected in turn
Explosion-proof impulse electromagnetic valve and pulse valve control system, design is not only simple in structure in this way, and is more energy-saving and environmentally friendly, when pipe chain is defeated
Send machine start to feed intake conveying when, dedusting fan and pulse valve control system are opened, through deduster so that being formed inside feeding groove
Micro negative pressure, thus the dust of feeding port is made to be spread into feeding groove, it is ensured that the environment Dust Capacity that feeds intake is minimum, works as deduster in addition
When middle dust accumulation reaches certain thickness, pulse backblowing function starts, and the dust accumulation in deduster is shaked off.
Specifically, the first level pipeline chain conveyor feed end is provided with the first tensioning cabinet, discharge end is connected with
First driving cabinet, first level pipeline chain conveyor are internally provided with the first chain and the first carrier bar, the side of the first driving cabinet
It is additionally provided with support angle steel.
Specifically, the second vertical pipeline chain conveyor discharge end is equipped with the second driving cabinet, the second vertical tube chain is defeated
It send machine to be internally provided with the second chain and the second carrier bar, overhauls window and photoscope window is further respectively had on conveyance conduit.
Specifically, the feed end of the horizontal pipeline chain conveyor of the third is provided with third tensioning cabinet, discharge end connection
There is third that cabinet, the horizontal pipeline chain conveyor lower part of third is driven to be equipped with support plate, be internally provided with third chain and third carrier bar.
Specifically, being equipped with overload on the first driving cabinet, the second driving cabinet and third driving cabinet and taking off
Chain warning device and nitrogen through hole, the safe transport for ensureing PTA powders in transmission process.
Specifically, the first level pipeline chain conveyor, the second vertical pipeline chain conveyor and the conveying of third horizontal tube chain
Machine is bolted.
Specifically, level switch is additionally provided in the PTA filler bins, for being monitored to material position in filler bin and in advance
It is alert.
Advantages of the present invention：
1. PTA powders carrier bar transport system provided by the invention is simple for process, of low cost, safe and efficient, easily controllable, pass through
The horizontal and vertical combination of each pipeline chain conveyor realizes the lasting and long-distance sand transport of PTA powders, substantially increases conveying effect
Rate, while in transmission process nitrogen protection is passed through in each pipeline chain conveyor so that the conveying of PTA powders is safer.
2. PTA powders carrier bar transport system provided by the invention conveys PTA powders using pipeline chain conveyor, relative to tradition
Using nitrogen as power convey PTA powders, not only greatly reduce the usage amount of nitrogen, decrease energy consumption, simultaneously because pipe
The excellent seal of chain conveyer, is more advantageous to reduction dust pollution.
3. being equipped with dust pelletizing system in PTA powders carrier bar transport system provided by the invention, deduster bottom connects with feeding groove
It connects, deduster is equipped with blowback nitrogen through hole, and blowback nitrogen through hole is connected with explosion-proof impulse electromagnetic valve and pulse valve control in turn
System, in this way design are not only simple in structure, and are improved automation control, and be more energy-saving and environmentally friendly, are more advantageous to feeding port
Dust is spread into feeding groove, to reduce the dust pollution during feeding intake.
4. each pipeline chain conveyor discharge end of PTA powders carrier bar transport system provided by the invention is respectively connected with band overload and takes off
The driving motor of chain warning device, PTA filler bins are interior to be equipped with level switch, for being carried out to pipe chain operating condition and material position situation
Monitoring, not only substantially increases the safety of PTA powder carries, reduces unnecessary loss caused by transmission failure in this way, and
And it ensure that the steady running of production.
【Description of the drawings】
Fig. 1 is the structural schematic diagram of PTA powders carrier bar transport system of the present invention.
Fig. 2 is first level pipeline chain conveyor structural schematic diagram of the present invention.
Fig. 3 is the second vertical tube chain conveyor construction schematic diagram of the invention.
Fig. 4 is the horizontal pipeline chain conveyor of third of the present invention and PTA filler bin structural schematic diagrams.
【Specific implementation mode】
In order to more fully understand the technology contents of the present invention, below in conjunction with the accompanying drawings by specific embodiment to technical solution of the present invention
It is described further and illustrates.Following embodiment is descriptive, is not restrictive, and cannot limit the present invention's with this
Protection domain.
As shown in Figs 1-4, a kind of PTA powders carrier bar transport system, it includes feeding system, dust pelletizing system and delivery system
System, the feeding system include feeding groove 1, and dust pelletizing system includes deduster 2 and dedusting fan 3, and transport system includes successively
The first level pipeline chain conveyor 4 of connection, the second vertical pipeline chain conveyor 5 and the horizontal pipeline chain conveyor of third 6；Described feeds intake
1 top of slot is provided with Manual material feeding bucket 7, and side wall is equipped with tank car discharge port 8, the charging of bottom and first level pipeline chain conveyor 4
9 connection of end；The deduster 2 is arranged in the side of Manual material feeding bucket 7, and 2 bottom of deduster is connect with feeding groove 1, and top is logical
Piping is connect in outdoor dedusting fan 3 with being arranged；The discharge end 10 and second of the first level pipeline chain conveyor 4 hangs down
The feed end 11 of straight pipeline chain conveyor 5 connects, discharge end 12 and the horizontal pipeline chain conveyor of third of the second vertical pipeline chain conveyor 5
6 feed end 13 connects, and 14 lower part of discharge end of the horizontal pipeline chain conveyor of the third 6 is connected with PTA filler bins 15.
Specifically, the number of the Manual material feeding bucket 7 is two.
Specifically, 2 surface of deduster is equipped with blowback nitrogen through hole 16, blowback nitrogen through hole 16 is connected in turn anti-
Quick-fried impulse electromagnetic valve 17 and pulse valve control system 18, design is not only simple in structure in this way, and is more energy-saving and environmentally friendly, when pipe chain
Conveyer start to feed intake conveying when, dedusting fan 3 and pulse valve control system 18 are opened, through deduster 2 so that in feeding groove 1
Portion forms micro negative pressure, to make the dust of feeding port be spread into feeding groove 1, it is ensured that the environment Dust Capacity that feeds intake is minimum, in addition
When dust accumulation reaches certain thickness in deduster, pulse backblowing function starts, and the dust accumulation in deduster 2 is shaked off.
Specifically, 4 feed end 9 of first level pipeline chain conveyor is provided with the first tensioning cabinet 19, discharge end 10
It is connected with the first driving cabinet 20, first level pipeline chain conveyor 4 is internally provided with the first chain 21 and the first carrier bar 22, and first drives
The side of motivation case 20 is additionally provided with support angle steel 23.
Specifically, 5 discharge end 12 of the second vertical pipeline chain conveyor is equipped with the second driving cabinet 24, the second vertical tube
Chain conveyer 5 is internally provided with the second chain 25 and the second carrier bar 26, and overhauls window 27 and perspective are further respectively had on conveyance conduit
Mirror window 28.
Specifically, the feed end 13 of the horizontal pipeline chain conveyor of the third 6 is provided with third tensioning cabinet 29, discharge end
14 are connected with third driving cabinet 30, and horizontal 6 lower part of pipeline chain conveyor of third is equipped with support plate 31, is internally provided with third chain 32
With third carrier bar 33.
It was equipped on cabinet 24 and third driving cabinet 30 specifically, the first driving cabinet 20, second drives
Load and de- chain warning device 34 and nitrogen through hole 35, the safe transport for ensureing PTA powders in transmission process.
Specifically, the first level pipeline chain conveyor 4, the second vertical pipeline chain conveyor 5 and third horizontal tube chain are defeated
Machine 6 is sent to be fixed by bolt 36.
Specifically, level switch 37 is additionally provided in the PTA filler bins 15, for being supervised to material position in filler bin 15
Survey and early warning.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from this design, several improvement can also be made, these are all within the scope of protection of the present invention.Therefore, originally
The protection domain of patent of invention should be determined by the appended claims.
Claims (9)
1. a kind of PTA powders carrier bar transport system, it is characterised in that：It includes feeding system, dust pelletizing system and transport system, institute
The feeding system stated includes feeding groove, and dust pelletizing system includes deduster and dedusting fan, and transport system includes sequentially connected
One horizontal pipeline chain conveyor, the second vertical pipeline chain conveyor and the horizontal pipeline chain conveyor of third；Setting at the top of the feeding groove
There are artificial cast hopper, side wall to be equipped with tank car discharge port, bottom is connect with the feed end of first level pipeline chain conveyor；Described removes
Dirt device is arranged in the side of Manual material feeding bucket, and deduster bottom is connect with feeding groove, and top is by pipeline and is arranged in outdoor
Dedusting fan connects；The feed end of the discharge end pipeline chain conveyor vertical with second of the first level pipeline chain conveyor connects
It connects, the discharge end of the second vertical pipeline chain conveyor is connect with the feed end of the horizontal pipeline chain conveyor of third, and the third is horizontal
The discharge end lower part of pipeline chain conveyor is connected with PTA filler bins.
2. PTA powders carrier bar transport system as described in claim 1, it is characterised in that：The number of the Manual material feeding bucket
It is two.
3. PTA powders carrier bar transport system as described in claim 1, it is characterised in that：The deduster surface is equipped with anti-
Nitrogen flushing vent hole, the blowback nitrogen through hole are connected with explosion-proof impulse electromagnetic valve and pulse valve control system in turn.
4. PTA powders carrier bar transport system as described in claim 1, it is characterised in that：The first level pipe chain conveying
Machine feed end is provided with the first tensioning cabinet, and discharge end is connected with the first driving cabinet, is set inside first level pipeline chain conveyor
There are the first chain and the first carrier bar, the side of the first driving cabinet to be additionally provided with support angle steel.
5. PTA powders carrier bar transport system as described in claim 1, it is characterised in that：The second vertical tube chain conveying
Machine discharge end is equipped with the second driving cabinet, and the second vertical pipeline chain conveyor is internally provided with the second chain and the second carrier bar, delivery pipe
Overhauls window and photoscope window are further respectively had on road.
6. PTA powders carrier bar transport system as described in claim 1, it is characterised in that：The third horizontal tube chain conveying
The feed end of machine is provided with third tensioning cabinet, and discharge end is connected with third driving cabinet, the horizontal pipeline chain conveyor lower part of third
Equipped with support plate, it is internally provided with third chain and third carrier bar.
7. such as PTA powders carrier bar transport system described in claim 5 or 6, it is characterised in that：The described first driving cabinet,
It is equipped with overload and de- chain warning device and nitrogen through hole on second driving cabinet and third driving cabinet.
8. PTA powders carrier bar transport system as claimed in claim 7, it is characterised in that：The first level pipe chain conveying
Machine, the second vertical pipeline chain conveyor and the horizontal pipeline chain conveyor of third are bolted.
9. PTA powders carrier bar transport system as claimed in claim 8, it is characterised in that：It is additionally provided in the PTA filler bins
Level switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810112708.4A CN108357882A (en) | 2018-02-05 | 2018-02-05 | A kind of PTA powders carrier bar transport system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810112708.4A CN108357882A (en) | 2018-02-05 | 2018-02-05 | A kind of PTA powders carrier bar transport system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108357882A true CN108357882A (en) | 2018-08-03 |
Family
ID=63004675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810112708.4A Pending CN108357882A (en) | 2018-02-05 | 2018-02-05 | A kind of PTA powders carrier bar transport system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108357882A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353770A (en) * | 2018-12-03 | 2019-02-19 | 安徽恒明工程技术有限公司 | PTA pipe chain transportation system |
| CN111498386A (en) * | 2020-05-13 | 2020-08-07 | 广西北海惠尔能源科技有限公司 | Polypropylene powder pipe chain conveying method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5455395A (en) * | 1992-08-07 | 1995-10-03 | Pfister Gmbh | Pipe chain conveyor |
| CN201284147Y (en) * | 2008-09-11 | 2009-08-05 | 无锡市华星电力环保修造厂 | Ashes negative pressure pneumatic conveying apparatus |
| CN102633137A (en) * | 2012-05-03 | 2012-08-15 | 苏州隆阁新材料有限公司 | Dust-free charging device |
| CN202670773U (en) * | 2012-06-20 | 2013-01-16 | 福建省金纶高纤股份有限公司 | Conveying device for PAT (polyarylate) pipeline chain plate |
| CN202687388U (en) * | 2012-07-18 | 2013-01-23 | 中国天辰工程有限公司 | Conveying system for industrial solid adipic acid |
| CN204823260U (en) * | 2015-07-27 | 2015-12-02 | 永高股份有限公司 | What plastics thoughtlessly set charge -in system fully throws material conveying mechanism |
| CN204910858U (en) * | 2015-07-06 | 2015-12-30 | 天津隆业轻工机械有限公司 | Automatic throw material wherein medicine extraction system |
| CN106743741A (en) * | 2017-03-13 | 2017-05-31 | 江苏金旺包装机械科技有限公司 | Negative-pressure feeding silo roof dust-removing recovery device |
| CN206665698U (en) * | 2017-02-24 | 2017-11-24 | 山东华鲁恒升化工股份有限公司 | Solid adipic acid conveying device |
| CN207985989U (en) * | 2018-02-05 | 2018-10-19 | 洛阳石化工程设计有限公司 | A kind of PTA powders carrier bar transport system |
-
2018
- 2018-02-05 CN CN201810112708.4A patent/CN108357882A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5455395A (en) * | 1992-08-07 | 1995-10-03 | Pfister Gmbh | Pipe chain conveyor |
| CN201284147Y (en) * | 2008-09-11 | 2009-08-05 | 无锡市华星电力环保修造厂 | Ashes negative pressure pneumatic conveying apparatus |
| CN102633137A (en) * | 2012-05-03 | 2012-08-15 | 苏州隆阁新材料有限公司 | Dust-free charging device |
| CN202670773U (en) * | 2012-06-20 | 2013-01-16 | 福建省金纶高纤股份有限公司 | Conveying device for PAT (polyarylate) pipeline chain plate |
| CN202687388U (en) * | 2012-07-18 | 2013-01-23 | 中国天辰工程有限公司 | Conveying system for industrial solid adipic acid |
| CN204910858U (en) * | 2015-07-06 | 2015-12-30 | 天津隆业轻工机械有限公司 | Automatic throw material wherein medicine extraction system |
| CN204823260U (en) * | 2015-07-27 | 2015-12-02 | 永高股份有限公司 | What plastics thoughtlessly set charge -in system fully throws material conveying mechanism |
| CN206665698U (en) * | 2017-02-24 | 2017-11-24 | 山东华鲁恒升化工股份有限公司 | Solid adipic acid conveying device |
| CN106743741A (en) * | 2017-03-13 | 2017-05-31 | 江苏金旺包装机械科技有限公司 | Negative-pressure feeding silo roof dust-removing recovery device |
| CN207985989U (en) * | 2018-02-05 | 2018-10-19 | 洛阳石化工程设计有限公司 | A kind of PTA powders carrier bar transport system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353770A (en) * | 2018-12-03 | 2019-02-19 | 安徽恒明工程技术有限公司 | PTA pipe chain transportation system |
| CN111498386A (en) * | 2020-05-13 | 2020-08-07 | 广西北海惠尔能源科技有限公司 | Polypropylene powder pipe chain conveying method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180803 |
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| RJ01 | Rejection of invention patent application after publication |