CN107982967A - A kind of filter-press blowback air system for reducing product PT acid - Google Patents
A kind of filter-press blowback air system for reducing product PT acid Download PDFInfo
- Publication number
- CN107982967A CN107982967A CN201711484136.4A CN201711484136A CN107982967A CN 107982967 A CN107982967 A CN 107982967A CN 201711484136 A CN201711484136 A CN 201711484136A CN 107982967 A CN107982967 A CN 107982967A
- Authority
- CN
- China
- Prior art keywords
- blowback
- filter
- press
- acid
- gas pipeline
- 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
- 239000002253 acid Substances 0.000 title claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000007789 gas Substances 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 238000010926 purge Methods 0.000 claims abstract description 13
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 12
- 238000010792 warming Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 2
- 238000010408 sweeping Methods 0.000 claims 2
- 230000009466 transformation Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
Abstract
The invention discloses a kind of filter-press blowback air system for reducing product PT acid, belong to purger technical field.Including the blowback gas pipeline being connected with filter-press, the blowback gas pipeline connects wind turbine, and nitrogen purge line connects the blowback gas pipeline through heat exchanger, and the nitrogen purge line between the heat exchanger and blowback gas pipeline is equipped with control valve a.The beneficial effects of the invention are as follows：Increase one pure nitrogen gas blow line in the existing blowback gas pipelines of RPF, and the pure nitrogen gas to entering RPF carries out heating transformation, pure nitrogen gas is increased to 160 DEG C by room temperature by heat exchanger, enter back into RPF blow lines, nitrogen, vapor ratio effectively in adjusting filter-press system, effective help is played to control product PT acid.
Description
Technical field
The present invention relates to a kind of filter-press blowback air system, belong to purger technical field.
Background technology
In the prior art, filter-press blowback air is to be directly entered filter-press after boosting by circulating fan
(RPF), often occur to fluctuate exceeded, sour (p-methylbenzoic acid) nothings of PT of product in actual moving process drying machine product PT acid
Method controls.
The content of the invention
To solve defect existing in the prior art, the object of the present invention is to provide a kind of drop effectively controlled product PT acid
The filter-press blowback air system of low product PT acid.
The technical scheme is that：It is a kind of reduce product PT acid filter-press blowback air system, including with pressure
The blowback gas pipeline of filter connection, the blowback gas pipeline connect wind turbine, and nitrogen purge line is described anti-through heat exchanger connection
Insufflation line, the nitrogen purge line between the heat exchanger and blowback gas pipeline are equipped with control valve a.
The blowback gas pipeline is equipped with control valve b and butterfly valve.
The interface of the nitrogen purge line and blowback gas pipeline is between control valve b and filter-press.
The nitrogen purge line is pure nitrogen gas blow line.
Nitrogen is warming up to 160 DEG C after heat exchanger heat exchange.
Blowback medium in the blowback gas pipeline is vapor.
The beneficial effects of the invention are as follows：Increase one pure nitrogen gas blow line in the existing blowback gas pipelines of RPF, and to entering
The pure nitrogen gas of RPF carries out heating transformation, and pure nitrogen gas is increased to 160 DEG C by room temperature by heat exchanger, enters back into RPF scavenging conduits
Nitrogen, vapor ratio in line, effectively adjusting filter-press system, effective help is played to control product PT acid.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Reference numeral is as follows in figure：1st, filter-press, 2, blowback gas pipeline, 3, nitrogen purge line, 4, heat exchanger, 5,
Control valve a, 6, control valve b, 7, wind turbine, 8, butterfly valve.
Embodiment
1 the present invention will be further described below in conjunction with the accompanying drawings：
A kind of filter-press blowback air system for reducing product PT acid, including the blowback air being connected with filter-press 1
Pipeline 2, the blowback gas pipeline 2 connect wind turbine 7, and nitrogen purge line 3 connects the blowback gas pipeline 2 through heat exchanger 4, described
Nitrogen purge line 3 between heat exchanger 4 and blowback gas pipeline 2 is equipped with control valve a5.
The blowback gas pipeline 2 is equipped with control valve b6 and butterfly valve 8.
The interface of the nitrogen purge line 3 and blowback gas pipeline 2 is between control valve b6 and filter-press 1.
The nitrogen purge line 3 is pure nitrogen gas blow line.
Nitrogen is warming up to 160 DEG C after the heat exchanger 4 heat exchange.
Blowback medium in the blowback gas pipeline 2 is vapor.
Increase one pure nitrogen gas blow line 3 in the existing blowback gas pipelines of RPF, and the pure nitrogen gas to entering RPF rises
Temperature transformation, is increased to 160 DEG C by room temperature by pure nitrogen gas by heat exchanger 4, enters back into the blowback gas pipeline 2 of RPF, effectively adjusts pressure
Nitrogen, vapor ratio in 1 system of power filter, effective help is played to control product PT acid.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and modification, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of filter-press blowback air system for reducing product PT acid, it is characterised in that including connecting with filter-press (1)
The blowback gas pipeline (2) connect, blowback gas pipeline (2) the connection wind turbine (7), nitrogen purge line (3) are connected through heat exchanger (4)
The blowback gas pipeline (2), the nitrogen purge line (3) between the heat exchanger (4) and blowback gas pipeline (2) are equipped with control
Valve a (5).
2. the filter-press blowback air system according to claim 1 for reducing product PT acid, it is characterised in that described anti-
Insufflation line (2) is equipped with control valve b (6) and butterfly valve (8).
3. the filter-press blowback air system according to claim 2 for reducing product PT acid, it is characterised in that the nitrogen
The interface of air-blowing sweeping (3) and blowback gas pipeline (2) is located between control valve b (6) and filter-press (1).
4. the filter-press blowback air system according to claim 1 for reducing product PT acid, it is characterised in that the nitrogen
Air-blowing sweeping (3) is pure nitrogen gas blow line.
5. the filter-press blowback air system according to claim 1 for reducing product PT acid, it is characterised in that nitrogen passes through
160 DEG C are warming up to after heat exchanger (4) heat exchange.
6. the filter-press blowback air system according to claim 1 for reducing product PT acid, it is characterised in that described anti-
Blowback medium in insufflation line (2) is vapor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484136.4A CN107982967A (en) | 2017-12-29 | 2017-12-29 | A kind of filter-press blowback air system for reducing product PT acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484136.4A CN107982967A (en) | 2017-12-29 | 2017-12-29 | A kind of filter-press blowback air system for reducing product PT acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107982967A true CN107982967A (en) | 2018-05-04 |
Family
ID=62040531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711484136.4A Pending CN107982967A (en) | 2017-12-29 | 2017-12-29 | A kind of filter-press blowback air system for reducing product PT acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107982967A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008847A (en) * | 2010-07-02 | 2011-04-13 | 陕西神木化学工业有限公司 | Cleaning method of bag filter used in low temperature methanol washing process |
| CN203212537U (en) * | 2012-12-26 | 2013-09-25 | 西安西矿环保科技有限公司 | Super-high temperature pulse injection system |
| CN103865598A (en) * | 2012-12-13 | 2014-06-18 | 大唐国际化工技术研究院有限公司 | Method using brown coal for preparation of high density coal water slurry |
| CN204952475U (en) * | 2015-07-31 | 2016-01-13 | 成都易态科技有限公司 | Blowback device |
| CN105585396A (en) * | 2014-10-20 | 2016-05-18 | 中国石油化工股份有限公司 | Method for preparing low carbon olefin by oxygen-containing compound |
| CN105817090A (en) * | 2016-05-23 | 2016-08-03 | 西安交通大学 | Ceramic membrane oxidation reduction blowback system and method |
-
2017
- 2017-12-29 CN CN201711484136.4A patent/CN107982967A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008847A (en) * | 2010-07-02 | 2011-04-13 | 陕西神木化学工业有限公司 | Cleaning method of bag filter used in low temperature methanol washing process |
| CN103865598A (en) * | 2012-12-13 | 2014-06-18 | 大唐国际化工技术研究院有限公司 | Method using brown coal for preparation of high density coal water slurry |
| CN203212537U (en) * | 2012-12-26 | 2013-09-25 | 西安西矿环保科技有限公司 | Super-high temperature pulse injection system |
| CN105585396A (en) * | 2014-10-20 | 2016-05-18 | 中国石油化工股份有限公司 | Method for preparing low carbon olefin by oxygen-containing compound |
| CN204952475U (en) * | 2015-07-31 | 2016-01-13 | 成都易态科技有限公司 | Blowback device |
| CN105817090A (en) * | 2016-05-23 | 2016-08-03 | 西安交通大学 | Ceramic membrane oxidation reduction blowback system and method |
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