CN109529432A - BYD reactor metal membrane filter backwash control method - Google Patents
BYD reactor metal membrane filter backwash control method Download PDFInfo
- Publication number
- CN109529432A CN109529432A CN201910051594.1A CN201910051594A CN109529432A CN 109529432 A CN109529432 A CN 109529432A CN 201910051594 A CN201910051594 A CN 201910051594A CN 109529432 A CN109529432 A CN 109529432A
- Authority
- CN
- China
- Prior art keywords
- backwash
- filter
- metal film
- time
- liquid measure
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000002184 metal Substances 0.000 title claims abstract description 34
- 239000012528 membrane Substances 0.000 title claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000011001 backwashing Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
Classifications
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
-
- 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
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering 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
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/603—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
-
- 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
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtration Of Liquid (AREA)
Abstract
BYD reactor metal membrane filter backwash control method, belongs to chemical field.This method including the following steps: (1) 26 metal film filters are individually backwashed, and keep continuity；(2) based on backwash flow quantity, supplemented by time and pressure；(3) backwash liquid measure is individually set；(4) backwash situation is determined by the time；(5) independent metal film filter backwash control flow chart is drawn, realizes display, the record of the parameters such as backwash time, backwash liquid measure.The control method of the relatively original filtering bag filter of the present invention, backwash effect is good, and applicability is stronger, reduces device because of filter problem parking maintenance number, improves production efficiency.
Description
Technical field
The invention belongs to chemical technology fields, control more particularly to a kind of BYD reactor metal membrane filter backwash
Method.
Background technique
Acetylene legal system Isosorbide-5-Nitrae-butynediols (BYD) is acetylene and formaldehyde in the presence of Cu-Bi catalyst, in 98kPa, 80-
95 DEG C of reactions are made.BYD reactor is equipped with 26 bag type filters, and the BYD solution of generation is produced by filter bag, catalyst
It is maintain by filter bag and continues to participate in reaction in BYD reactor.Due to extraction so that filter bag surface forms catalyst cake layer, dress
It sets to need to be set according to the time in operation and 26 filter sequences is backwashed by root, guarantee the catalyst cake layer of filter bag surface
Suspended state is held to solution relaying continuation of insurance by blowback and participates in reaction.
Bag filter contamination resistance and durability are poor, and general production 3 months or so just needs the replacement cloth that stops production
Bag, the stop production to overhaul period about 12 days, not only the cost of overhaul was high, and Batch Process seriously affects production capacity.Use metal film mistake
Filter can effectively extend the BYD process production cycle, reduce stop frequency and maintenance workload.But because of bag filter and metal
The structure and property of membrane filter are different, and bag filter backwashing pressure only needs 60-70kPa, and backwash interval time can be with
Control is in 30-600s, backwash duration 4-10s；And metal film filter needs high-frequency high pressure anti-in use
It rinses, backwash pressure is 450kPa or so, backwash duration 2-5s.Therefore, using the back-flushing method of bag filter
Using effect is poor on metal film filter, is not able to satisfy the demand of metal film filter backwash.
Summary of the invention
The present invention for BYD reactor metal membrane filter in use to special backwash liquid measure and backwash time,
The requirement of backwash interval time proposes a kind of control method of independent, the continuous backwash of 26 filters of metal film filter.
Realize the technical solution of the object of the invention are as follows: BYD reactor metal membrane filter backwash control method, this method
Including the following steps:
(1) 26 individually operated backwashing procedures, and 26 metal film mistakes are divided into 26 metal film filter backwashes
Filter backwash keeps continuity；
(2) it is changed to conventional based on backwash flow quantity, time and pressure using the time as the backwash control method of control parameter
Control method supplemented by power；
(3) every metal film filter individually sets backwash liquid measure, the number of backwash liquid measure is judged automatically in backwash process, when anti-
The backwash of the filter is automatically stopped on the basis of liquid level of the washing trough liquid level before backwash when decline 15-22%, records the filter
Backwash time, backwash liquid measure enter the backwashing procedures of next filter after the interval time of setting；
(4) determined if the backwash liquid measure of setting is not achieved in the backwash liquid measure of some filter by the time in backwash process
Backwash terminates, and stops the backwash filter, records the backwash time of the filter, and compare with last backwash liquid measure, instead
Washing procedure prepares automatically into the backwash of next metal film filter；
(5) it is directed to the backwash control method of BYD metal film filter, draws independent metal film filter backwash control flow
Figure realizes before and after backwash time, backwash liquid measure, backwash interval time, same root metal film filter the difference of backwash liquid measure twice
The display of the parameters such as value, record.
The present invention has following remarkable result: the relatively original sock filtration of the control method of metal film filter backwash
The control method of device, by being changed to based on backwash flow quantity based on simple time control, time and pressure are control parameter
Auxiliary control mode, backwash effect is good, and applicability is stronger, reduces device because of filter problem parking maintenance number, improves
Production efficiency.
Specific embodiment
A specific embodiment of the invention does specific statement by embodiment.
Embodiment:
Metal film filter backwash pressure is set as 450kPa operation, and the slippage of anti-wash tank liquid level is set as 20%, backwash procedure
According to interval 45s, backwashing time is set as 5s.
The thick BYD filtrate produced by BYD reactor is pumped into backwash liquid bath and establishes liquid level, backwash as backwash liquor
Liquid bath provides dry-cleaning power by nitrogen.After starting control program, all flushing valves, backwash valve, timer are checked and reset, is opened
Beginning carries out detection program, after pressure reaches setting pressure 450kPa, starts the backwash journey for executing the 1st metallic filter
Sequence, flushing valve closing, backwash valve are opened, and backwash liquor is pressed into metal film filter, and thick BYD filtrate is poured inside metal film, backwash
Liquid is rinsed from inside to outside by pressure effect, and backwash timer timing starts, while judging whether liquid level variable quantity reaches and setting
Definite value 20%.After meeting liquid level variable quantity or backwash timer arrival 5s, then flushing valve opening, backwash valve are closed, and the 1st
Filter Back Washing is completed.1st metallic filter backwashing procedures are spaced 45s after being finished, and start to carry out the 2nd metal
Filter Back Washing program returns again to first metallic filter backwash procedure and follows until 26 filter whole backwashes terminate
Ring executes.
In the process of running, BYD reactor liquid level produces pressure difference in 42~45kPa, energy in 55~58% fluctuations to filter
Enough meet device full production condition.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and wants according to right of the present invention
Made equivalent variations is sought, is still belonged to the scope covered by the invention.
Claims (1)
1.BYD reactor metal membrane filter backwash control method, which is characterized in that the control method the following steps are included:
(1) 26 individually operated backwashing procedures, and 26 metal film mistakes are divided into 26 metal film filter backwashes
Filter backwash keeps continuity；
(2) it is changed to conventional based on backwash flow quantity, time and pressure using the time as the backwash control method of control parameter
Control method supplemented by power；
(3) every metal film filter individually sets backwash liquid measure, the number of backwash liquid measure is judged automatically in backwash process, when anti-
The backwash of the filter is automatically stopped on the basis of liquid level of the washing trough liquid level before backwash when decline 15-22%, records the filter
Backwash time, backwash liquid measure enter the backwashing procedures of next filter after the interval time of setting；
(4) determined if the backwash liquid measure of setting is not achieved in the backwash liquid measure of some filter by the time in backwash process
Backwash terminates, and stops the backwash filter, records the backwash time of the filter, and compare with last backwash liquid measure, instead
Washing procedure prepares automatically into the backwash of next metal film filter；
(5) it is directed to the backwash control method of BYD metal film filter, draws independent metal film filter backwash control flow
Figure realizes before and after backwash time, backwash liquid measure, backwash interval time, same root metal film filter the difference of backwash liquid measure twice
The display of the parameters such as value, record.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051594.1A CN109529432B (en) | 2019-01-21 | 2019-01-21 | Backwashing control method for BYD reactor metal membrane filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051594.1A CN109529432B (en) | 2019-01-21 | 2019-01-21 | Backwashing control method for BYD reactor metal membrane filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109529432A true CN109529432A (en) | 2019-03-29 |
| CN109529432B CN109529432B (en) | 2020-12-08 |
Family
ID=65837986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910051594.1A Active CN109529432B (en) | 2019-01-21 | 2019-01-21 | Backwashing control method for BYD reactor metal membrane filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109529432B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111007041A (en) * | 2019-12-17 | 2020-04-14 | 攀枝花钢企欣宇化工有限公司 | Method for reducing misinformation of turbidity meter in brine refined ceramic membrane filter |
| CN113559589A (en) * | 2021-08-03 | 2021-10-29 | 上海同臣环保有限公司 | Method for optimizing filter cloth use of filter tank by adding water inlet valve positioner |
Citations (5)
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|---|---|---|---|---|
| CN101862561A (en) * | 2008-11-11 | 2010-10-20 | 米利波尔公司 | The system and method that is used for liquid filtering |
| JP2012190557A (en) * | 2011-03-08 | 2012-10-04 | Panasonic Corp | Illumination apparatus, and fan unit for illumination apparatus |
| CN104492265A (en) * | 2014-12-31 | 2015-04-08 | 天津大学 | Ultrafiltration membrane device with on-line medicament backwashing and blowdown device |
| CN106573202A (en) * | 2014-08-15 | 2017-04-19 | 格兰富控股联合股份公司 | Control method for a filter system |
| CN108069477A (en) * | 2017-12-13 | 2018-05-25 | 广州畅驰机电设备有限公司 | A kind of full-automatic back washing filtration system |
-
2019
- 2019-01-21 CN CN201910051594.1A patent/CN109529432B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862561A (en) * | 2008-11-11 | 2010-10-20 | 米利波尔公司 | The system and method that is used for liquid filtering |
| JP2012190557A (en) * | 2011-03-08 | 2012-10-04 | Panasonic Corp | Illumination apparatus, and fan unit for illumination apparatus |
| CN106573202A (en) * | 2014-08-15 | 2017-04-19 | 格兰富控股联合股份公司 | Control method for a filter system |
| CN104492265A (en) * | 2014-12-31 | 2015-04-08 | 天津大学 | Ultrafiltration membrane device with on-line medicament backwashing and blowdown device |
| CN108069477A (en) * | 2017-12-13 | 2018-05-25 | 广州畅驰机电设备有限公司 | A kind of full-automatic back washing filtration system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111007041A (en) * | 2019-12-17 | 2020-04-14 | 攀枝花钢企欣宇化工有限公司 | Method for reducing misinformation of turbidity meter in brine refined ceramic membrane filter |
| CN113559589A (en) * | 2021-08-03 | 2021-10-29 | 上海同臣环保有限公司 | Method for optimizing filter cloth use of filter tank by adding water inlet valve positioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109529432B (en) | 2020-12-08 |
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