CN105983347A - Backwashing system and method for ultrafiltration device of steelmaking desalted water station - Google Patents
Backwashing system and method for ultrafiltration device of steelmaking desalted water station Download PDFInfo
- Publication number
- CN105983347A CN105983347A CN201510086941.6A CN201510086941A CN105983347A CN 105983347 A CN105983347 A CN 105983347A CN 201510086941 A CN201510086941 A CN 201510086941A CN 105983347 A CN105983347 A CN 105983347A
- Authority
- CN
- China
- Prior art keywords
- backwashing
- ultrafiltration apparatus
- backwash
- dense water
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 50
- 238000011001 backwashing Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000009628 steelmaking Methods 0.000 title claims abstract description 10
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 6
- 230000005520 electrodynamics Effects 0.000 claims description 13
- 230000003203 everyday effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000011033 desalting Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a backwashing system and a backwashing method for an ultrafiltration device of a steelmaking desalting water station. The conductivity of a backwashing medium of the ultrafiltration device is 600-700 mu s/cm of reverse osmosis concentrated water; programming a backwashing program of a control computer, and setting the running and backwashing periods of the ultrafiltration device to be 40-45 min and 2.5-3 min for backwashing every time. The invention has stable water quality, can reduce the backwashing frequency of a single set of ultrafiltration device from 39 times to 29 times per 24 hours of continuous operation, greatly reduces the power consumption of a backwashing pump, can reduce the new water consumption by more than 500 tons every day, effectively reduces the operation time of a concentrated water pump, reduces the maintenance cost and ensures the stable operation of the ultrafiltration device.
Description
Technical field
The invention belongs to field of water treatment equipment, particularly to a kind of for making steel the backwashing system of desalted water station ultrafiltration apparatus and side
Method.
Background technology
At present, the ultrafiltration apparatus of domestic steel-making desalted water station is equipped with automatic back-washing system, and backwash water uses ultrafiltration to produce water, super
Filter plant running and backwash cycle set are for often running 30min, backwash 3min.Being set to of automatic back-washing system: water is produced in ultrafiltration
Case connects hyperfiltration reverse-rinsing fine filter by two ultrafiltration water pumps in parallel and pipeline, the hyperfiltration reverse-rinsing fine filter port of export the most respectively with respectively
Ultrafiltration apparatus connects.There is the problem that
1, the stationarity in ultrafiltration apparatus backwash cycle, it is difficult to adapt to the change of water quality at controlling the water circulation water source；
2, the backwash cycle is shorter, and to reducing, ultrafiltration apparatus is unfavorable from the power consumption of water consumption and ultrafiltration water pump；
3, the running status of ultrafiltration apparatus be 3 work, one standby, thus cause the frequent start-stop of ultrafiltration water pump, impact is super
The stable operation of filter device；
4, hyperfiltration reverse-rinsing pump EIAJ is 220～240m3/ h, scarce capacity, cause ultrafiltration apparatus Chemical cleaning interval time
Shorter, only about 7 days.
Summary of the invention
It is desirable to provide a kind of available reverse osmosis concentrated water replaces ultrafiltration to produce water, reduce the water consumption in backwash process and Xin Shui
Amount, and extend steel-making desalted water station ultrafiltration apparatus backwashing system and the method for ultrafiltration apparatus service life.
To this end, the solution that the present invention is taked is:
A kind of steel-making desalted water station ultrafiltration apparatus backwashing system, including dense water tank and the hyperfiltration reverse-rinsing fine filter of connection ultrafiltration apparatus,
It is characterized in that, be connected by dense water pipe between dense water tank with hyperfiltration reverse-rinsing fine filter, dense water pipe is provided with two electrodynamic valves, and two
Equipped with dense water pump between individual electrodynamic valve, dense water pump is all connected with control computer with electrodynamic valve.
Described dense water pump EIAJ is 330～340m3/h。
A kind of method making steel desalted water station ultrafiltration apparatus backwash, it is characterised in that:
(1) ultrafiltration apparatus backwash dielectric conductance rate is the reverse osmosis concentrated water of 600～700 μ s/cm；
(2) establishment controls computer backwash procedure, and being run by ultrafiltration apparatus with backwash cycle set is often to run 40～45min,
Backwash 2.5～3min.
Compared with the prior art, the invention have the benefit that
1, cleaning frequency and the cycle of operation of ultrafiltration apparatus is obviously prolonged, and utilization rate improves, and runs product water quality stabilizing；
2, the present invention can make singly to overlap ultrafiltration apparatus and runs the number of backwashes of 24 hours the most continuously and be down to 29 times by 39 times, thus pole
The big power consumption reducing backwashing pump；
3, use reverse osmosis concentrated water to replace ultrafiltration product water as backwash medium, fresh water consumption more than 500 tons can be reduced every day；
4, it is effectively reduced the dense water pump operation time, extends dense water pump and use the cycle, reduce maintenance cost, it is ensured that ultrafiltration apparatus
Stable operation.
Accompanying drawing explanation
Fig. 1 is ultrafiltration apparatus backwashing system structural representation.
In figure: dense water tank 1, dense water pipe 2, electrodynamic valve 3, dense water pump 4, hyperfiltration reverse-rinsing fine filter 5, ultrafiltration apparatus 6.
Detailed description of the invention
As seen from Figure 1, the present invention makes steel desalted water station ultrafiltration apparatus backwashing system, is by dense water tank 1, dense water pipe 2, dense water pump
4, hyperfiltration reverse-rinsing fine filter 5, ultrafiltration apparatus 6 and 3 electrodynamic valves 3 are formed.Dense water tank 1 connects ultrafiltration by dense water pipe 2
Backwash fine filter 5, dense water pipe 2 is provided with two electrodynamic valves 3, equipped with EIAJ on the dense water pipe 2 between two electrodynamic valves 2
It is 330～340m3The dense water pump 4 of/h, hyperfiltration reverse-rinsing fine filter 5 is by another electrodynamic valve 3 and connecting tube and ultrafiltration apparatus 6
Being connected, dense water pump 4 and 3 electrodynamic valves 3 are all connected with outside control computer.
The present invention makes steel the method for desalted water station ultrafiltration apparatus backwash, and one is to have changed backwash water, is 600～700 μ by electrical conductivity
The reverse osmosis concentrated water of s/cm substitutes original ultrafiltration and produces water, as ultrafiltration apparatus backwash medium.
Two is that establishment controls computer backwash procedure, runs with the backwash cycle ultrafiltration apparatus by the often operation 30min originally set, instead
Wash 3min and change often running 40～45min into, backwash 2.5～3min.
Ultrafiltration apparatus backwashing system of the present invention both can be applicable to newly-built desalted water station, is also applied for the transformation of original steel-making desalted water station,
Only need to set up dense water pipe 2, electrodynamic valve 3 and dense water pump 4, dense water tank 1 is coupled together with hyperfiltration reverse-rinsing fine filter 5, former
Some ultrafiltration are produced water tank, ultrafiltration water pump and pipeline and can be continued to retain as emergency power system.
Claims (3)
1. a steel-making desalted water station ultrafiltration apparatus backwashing system, including dense water tank and connect the super of ultrafiltration apparatus
Filter backwash fine filter, it is characterised in that be connected by dense water pipe between dense water tank with hyperfiltration reverse-rinsing fine filter,
Dense water pipe is provided with two electrodynamic valves, equipped with dense water pump between two electrodynamic valves, dense water pump and electrodynamic valve all with
Control computer to be connected.
Steel-making desalted water station ultrafiltration apparatus backwashing system the most according to claim 1, it is characterised in that
Described dense water pump EIAJ is 330～340m3/h。
3. applying a method for steel-making desalted water station ultrafiltration apparatus backwashing system described in claim 1, it is special
Levy and be:
(1) reverse osmosis concentrated water that ultrafiltration apparatus backwash medium uses electrical conductivity to be 600～700 μ s/cm；
(2) establishment controls computer backwash procedure, runs with backwash cycle set ultrafiltration apparatus for often to run
40～45min, backwash 2.5～3min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086941.6A CN105983347A (en) | 2015-02-25 | 2015-02-25 | Backwashing system and method for ultrafiltration device of steelmaking desalted water station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086941.6A CN105983347A (en) | 2015-02-25 | 2015-02-25 | Backwashing system and method for ultrafiltration device of steelmaking desalted water station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105983347A true CN105983347A (en) | 2016-10-05 |
Family
ID=57042603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510086941.6A Pending CN105983347A (en) | 2015-02-25 | 2015-02-25 | Backwashing system and method for ultrafiltration device of steelmaking desalted water station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105983347A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514039A (en) * | 2009-03-02 | 2009-08-26 | 朱伟 | Equipment using reverse osmosis high salinity water brine as ultra filtration washing water |
| CN102690003A (en) * | 2012-06-19 | 2012-09-26 | 江苏久吾高科技股份有限公司 | Device and method for performing advanced treatment on citric acid waste water through dual membrane process |
| WO2014170423A2 (en) * | 2013-04-19 | 2014-10-23 | Basf Se | Water filtration process |
| CN203999057U (en) * | 2014-05-30 | 2014-12-10 | 杭州上拓环境科技有限公司 | The automatic back-washing device of ultra-filtration equipment in a kind of freight container seawater desalination system |
-
2015
- 2015-02-25 CN CN201510086941.6A patent/CN105983347A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514039A (en) * | 2009-03-02 | 2009-08-26 | 朱伟 | Equipment using reverse osmosis high salinity water brine as ultra filtration washing water |
| CN102690003A (en) * | 2012-06-19 | 2012-09-26 | 江苏久吾高科技股份有限公司 | Device and method for performing advanced treatment on citric acid waste water through dual membrane process |
| WO2014170423A2 (en) * | 2013-04-19 | 2014-10-23 | Basf Se | Water filtration process |
| CN203999057U (en) * | 2014-05-30 | 2014-12-10 | 杭州上拓环境科技有限公司 | The automatic back-washing device of ultra-filtration equipment in a kind of freight container seawater desalination system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161005 |