CN106391597A - Online non-production-halt cleaning process for brine transportation pipeline - Google Patents
Online non-production-halt cleaning process for brine transportation pipeline Download PDFInfo
- Publication number
- CN106391597A CN106391597A CN201610918578.4A CN201610918578A CN106391597A CN 106391597 A CN106391597 A CN 106391597A CN 201610918578 A CN201610918578 A CN 201610918578A CN 106391597 A CN106391597 A CN 106391597A
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- CN
- China
- Prior art keywords
- salt
- pipeline road
- brine pipeline
- brine
- calcium ion
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
Abstract
The invention discloses an online non-production-halt cleaning process for a brine transportation pipeline. When the daily outward transportation amount of the brine transportation pipeline is lower than 13,050 cubic meters in 3-5 continuous days, clear water is injected into a buffer tank communicating with the feed end of a first station of the brine transportation pipeline, so that brine entering the brine transportation pipeline is made to be light brine; and when the daily outward transportation amount of the brine transportation pipeline reaches or is higher than 13,200 cubic meters in at least 2 continuous days, clear water injected into the buffer tank is stopped, so that brine entering the brine transportation pipeline is raw brine. By the adoption of the structure, scales in the brine transportation pipeline can be cleaned on the premise that production is not stopped, the scales in the brine transportation pipeline can be effectively removed under the scouring action of the brine transported through the brine transportation pipeline, and the influence on production and benefits of enterprises is small.
Description
Technical field
The present invention relates to brine transportation pipeline field and in particular to a kind of brine pipeline road does not stop production online cleaning.
Background technology
Adopt high pressure long brine pipeline road total length 173.8Km at brine pipeline reason, main material is the steel pipe of Φ 508*7, volume 3.3 ten thousand
Side, outer anti-corrosion employing strengthens level asphalt anti-corrosion, interior anti-corrosion employing solvent-free liquid epoxy coating, outer defeated pressure under conventional sense
Power 5.4MPa, flow 550 m3/h, salt flowing time in the duct is in 60h.The income from sales in here more than 90% is all
Come from this pipeline, be to adopt " large artery trunks " truly at brine pipeline reason.
Pipeline medium is Galuber's salt type brine, and sulfate radical content is higher, produces sulfur easily when external condition changes
Sour calcium separates out crystallization.
After brine pipeline road longtime running, crystal of calcium sulfate adventitious deposit is in inner-walls of duct, lead to pipeline pressure increasingly to raise,
Defeated halogen amount declines increasingly.And, because the dirt that inner-walls of duct is tied is not smooth surface, lead to the resistance of brine transportation obvious
Improve, and then lead to energy consumption to increase, reduce further the economic benefit of enterprise.
By dirty sample in sampling, chemical examination, the outer defeated bittern water pipeline of analysis, analysis result is shown in Table 1.
Table 1：Defeated salt pipeline scale sample ingredient analysis outward
| Gypsum Fibrosum % | Halite % | Anhydrite % | Quartzy % | Ankerite % | Pyrite % | Clay total amount % | |
| Enter halogen pipeline mouth | 90.0 | 5.5 | 0.7 | 1.4 | 1.4 | 1.0 | 0.0 |
| Go out halogen internal wall of pipe orifice | 96.3 | 0.7 | 1.9 | 0.0 | |||
| Dry crystallization | 99.2 | 0.8 | 0.0 |
By analysis result, determine that pipeline inner structure is mainly calcium sulfate（Gypsum Fibrosum）Dirt, calcium sulfate scale is attached in pipeline, leads to manage
Road contracting warp, therefore, the precipitation of calcium sulfate is to lead to outer throughput rate decline, the basic reason of pressure rise.
For two above problem, pipeline cleaning is most viable outlet.
But there is following difficult point in cleaning：
1. no suitable abluent：
As it was previously stated, the dirt in the pipeline of here is based on crystal of calcium sulfate, this crystallization is in the form of a column, and coalition is in compact massive, close
Degree 2.61g/cm3,1450 DEG C of fusing point, insoluble in acid, in water, dissolubility is minimum, is a kind of stupid dirt, and conventional method is difficult to remove.
2. brine pipeline road distance, not easy cleaning：
Here pipeline total length 173Km, internal capacity has 30,000 multi-party, not easy cleaning and workload is big.
3. in pipeline, liquid is salt, and cleaning is improper to easily cause environmental pollution.
4., with regard to the cleaning method in distance brine pipeline road, all no correlation experience can be used for reference both at home and abroad.
Feasibility for several refractory gold ores pipeline cleaning methods above：Industry interior conduit cleaning method has physics at present
Method and chemical method two big class.
Physical mainly has：
1. PIG method.Shortcoming：No R-T unit；Pipeline distance is easy and partly buried easily causes
Wiper blocking, and difficult during blocking taking-up occurs.
2. high-pressure wash method.Shortcoming：Scavenging period is longer, need to select suitable cleansing medium.
3. supercritical ultrasonics technology.Shortcoming：Pipeline distance is longer, is difficult to construct, cleaning performance is poor.
Chemical method mainly has：Chemical-agent technique.Shortcoming：Waste liquid subsequent treatment difficulty is big；Added pharmaceutical quantities are big；Cost is relatively
High.
In conjunction with here practical situation, only high-pressure wash can be applied to long brine pipeline road at present.
But common cleaning way necessarily requires pipeline to be stopped production, and because the length in brine pipeline road is extremely long, fouling
Amount greatly, rinse the required time very long, so the benefit for enterprise still has a great impact；And for defeated halogen
The cleaning situation of the fouling in pipeline cannot be learnt.
Content of the invention
It is an object of the invention to：Overcome the deficiencies in the prior art, provide a kind of brine pipeline road not stop production online scavenger
Skill, can be carried out to the fouling in brine pipeline road on the premise of not stopping production, and can not only be conveyed using brine pipeline road
The souring of salt makes the fouling in brine pipeline road effectively be removed, and the impact to enterprise's production and the performance of enterprises
Less；By day outer throughput rate it may determine that the fouling in brine pipeline road removes situation, thus easily facilitating operative employee for defeated
The removal of fouling in halogen pipeline；Using dissolution characteristics in sodium chloride brine for the calcium sulfate, the fouling in brine pipeline road is entered
Row removes, low cost, and the time is short；By respectively in salt at brine pipeline road initial station, No. 1 valve chamber and brine pipeline road tail station location
Calcium ion concentration is detected, such that it is able to further appreciate that the removal situation of the fouling in brine pipeline road；Meeting step 1）
On the premise of it is only necessary to ensure brine pipeline road initial station, in salt at No. 1 valve chamber position calcium ion concentration difference less than thousand/
Five, can not only ensure that the day meeting brine pipeline road outer throughput rate can reach requirement, also can guarantee that the pressure in brine pipeline road simultaneously
Power reaches safety criterion, but also can reduce the impact to the performance of enterprises for the fouling in cleaning brine pipeline road further；By right
The salt sampling at brine pipeline road tail station, can observe the state of salt received by brine pipeline road tail station at any time；Treat brine pipeline road
When the bittern samples at tail station are all limpid, show that brine pipeline road tail station receives for former salt.
The technical solution used in the present invention is：
Brine pipeline road does not stop production cleaning online, comprises the following steps：
1）When the day in brine pipeline road, outer throughput rate was below 13050 cubic metres in continuous 3 ~ 5 days, to brine pipeline road initial station
Injected clear water in the surge tank of feed end connection, the salt making entrance brine pipeline road is light salt；
2）When the day in brine pipeline road, outer throughput rate all reached at or above 13200 cubic metres at least continuous 2 days, stop to buffering
Injected clear water in tank, the salt making entrance brine pipeline road is former salt.
The further improvement project of the present invention is, described step 1）In, the sodium chloride concentration of described light salt is in 185 gram per liter
In the range of ~ 195 gram per liter.
The present invention further improvement project is, be continuously injected into into described brine pipeline road time of light salt 5 days ~
In the range of 7 days.
The present invention further improvement project is, described step 1）In, calcium in the salt of detection brine pipeline road initial station respectively
Calcium ion concentration in the set salt of No. 1 valve chamber in ion concentration and brine pipeline road；And described step 2）In, work as brine pipeline
When in the salt of road initial station, calcium ion concentration is differed with calcium ion concentration in the salt of No. 1 valve chamber less than 5/1000ths,
Stop to injected clear water in surge tank, the salt making entrance brine pipeline road is former salt.
The present invention further improvement project is, in described step 1, at interval of 1.5 hours ~ 2.5 hours, detects one respectively
Calcium ion concentration in the salt of calcium ion concentration and No. 1 valve chamber in the salt of secondary brine pipeline road initial station.
The present invention further improvement project is, described step 1）In, salt kind calcium ion also to brine pipeline road tail station
Concentration is detected；Described step 2）In, when calcium in calcium ion concentration in the salt of brine pipeline road initial station, the salt of No. 1 valve chamber
When in the salt at ion concentration and brine pipeline road tail station, calcium ion concentration difference is all less than 5/1000ths, stop to buffering
Injected clear water in tank, the salt making entrance brine pipeline road is former salt.
The present invention further improvement project is, described step 1）In, at interval of 1.5 hours ~ 2.5 hours, detect respectively
Calcium ion concentration and brine pipeline road tail station in calcium ion concentration in the salt of brine pipeline road initial station, the salt of No. 1 valve chamber
Calcium ion concentration in salt.
The present invention further improvement project is, described step 1）In, the salt that brine pipeline road tail station is received is collected
To light salt collection device, and the salt at brine pipeline road tail station is sampled retain；Described step 2）In, when at least continuous 2
After the bittern samples at individual brine pipeline road tail station are limpid, the salt receiving is collected and is collected dress to former salt by the tail station in brine pipeline road
In putting.
The beneficial effects of the present invention is：
Firstth, the brine pipeline road of the present invention does not stop production cleaning online, can be in brine pipeline road on the premise of not stopping production
Fouling be carried out, using the souring of the conveyed salt in brine pipeline road, the fouling in brine pipeline road can not only be obtained
Remove to effective, and the impact to enterprise's production and the performance of enterprises is less.
Secondth, the brine pipeline road of the present invention does not stop production cleaning online, by day outer throughput rate it may determine that brine pipeline
Fouling in road removes situation, thus easily facilitating the removal for fouling in brine pipeline road for the operative employee.
3rd, the brine pipeline road of the present invention does not stop production cleaning online, using calcium sulfate in sodium chloride brine
Dissolution characteristics, are removed to the fouling in brine pipeline road, low cost, the time is short.Chemical cleaning：As by the scale removal adding 10%
Agent is calculated, and in conjunction with the practical situation in brine pipeline road, scale remover consumption is expected to be 270 tons, and expense is at 6,500,000 yuan about；If in addition
Cleaning frequency is 4 days, it will reduces outer defeated 5.2 ten thousand sides, reduces 1,380,000 yuan of income from sales, integrated cost is about 7,880,000 yuan；Light
Salt cleans：Calculate as cleaned by the light salt of 185g/L, Theoretical Calculation will reach the same effect of Chemical cleaning, and scavenging period is pre-
Meter needs 16 days, it will reduces outer defeated salt 80,000 side, reduces 2,130,000 yuan of income from sales.
4th, the brine pipeline road of the present invention does not stop production cleaning online, by respectively to brine pipeline road initial station, No. 1 valve
In salt at room and brine pipeline road tail station location, calcium ion concentration is detected, such that it is able to further appreciate that in brine pipeline road
The removal situation of fouling.
5th, the brine pipeline road of the present invention does not stop production cleaning online, is meeting step 1）On the premise of it is only necessary to ensure
In salt at brine pipeline road initial station, No. 1 valve chamber position, calcium ion concentration difference is less than 5/1000ths, can not only ensure to meet
The day in brine pipeline road, outer throughput rate can reach requirement, also can guarantee that the pressure in brine pipeline road reaches safety criterion simultaneously, and
The impact to the performance of enterprises for the fouling in cleaning brine pipeline road can also be reduced further.
6th, the brine pipeline road of the present invention does not stop production cleaning online, by sampling to the salt at brine pipeline road tail station,
The state of salt received by brine pipeline road tail station can be observed at any time.
7th, the brine pipeline road of the present invention does not stop production cleaning online, treats that the bittern samples at brine pipeline road tail station are all clear
When clear, show that brine pipeline road tail station receives for former salt.
Specific embodiment
The present invention comprises the following steps：
1）When the day in brine pipeline road, outer throughput rate was below 13050 cubic metres in continuous 3 ~ 5 days（In the present embodiment, brine pipeline
The day in road, outer throughput rate was below 13050 cubic metres for three days on end, respectively 12980 cubic metres, 12907 cubic metres and 12820 cubes
Rice）, injected clear water in the surge tank that connects to the feed end with brine pipeline road initial station, the salt making entrance brine pipeline road is light halogen
Water；
2）When the day in brine pipeline road, outer throughput rate all reached at or above 13200 cubic metres at least continuous 2 days（The present embodiment
In, the day outer throughput rate in brine pipeline road is above in 13200 cubic metres for three days on end, respectively 13214 cubic metres, 13287 cubic metres
With 13340 cubic metres）, stop to injected clear water in surge tank, the salt making entrance brine pipeline road is former salt.
Described step 1）In, the sodium chloride concentration of described light salt is in the range of 185 gram per liter ~ 195 gram per liter（This reality
Apply in case, the sodium chloride concentration of described light salt is 185 gram per liter）.
The time being continuously injected into light salt into described brine pipeline road is in the range of 5 days ~ 7 days（In the implementation case,
It is continuously injected into 5 days light salt into described brine pipeline road）.
Described step 1）In, set on calcium ion concentration and brine pipeline road in the salt of detection brine pipeline road initial station respectively
Calcium ion concentration in the salt of No. 1 valve chamber；And described step 2）In, when calcium ion concentration and No. 1 valve in the salt of feed end
When in the salt of room, calcium ion concentration difference is less than 5/1000ths, stop, to injected clear water in surge tank, making entrance defeated
The salt of halogen pipeline is former salt.
Described step 1）In, also the salt kind calcium ion concentration at brine pipeline road tail station is detected；Described step 2）In,
When in the salt of calcium ion concentration and No. 1 valve chamber in the salt of brine pipeline road initial station, calcium ion concentration difference is less than 5/1000ths
When, stop to injected clear water in surge tank, the salt making entrance brine pipeline road is former salt.
Described step 1）In, at interval of 1.5 hours ~ 2.5 hours（In the present embodiment, at interval of 2 hours）, detect one respectively
Calcium ion concentration in the salt of calcium ion concentration and No. 1 valve chamber in the salt of secondary brine pipeline road initial station.
Described step 1）In, the salt that brine pipeline road tail station is received is collected to light salt collection device, and to defeated halogen
The salt of pipeline discharge end is sampled retaining；Described step 2）In, when the bittern samples at least continuous 2 brine pipeline roads tail station
After limpid（In the implementation case, after the bittern samples at continuous 2 brine pipeline roads tail station are limpid）, the tail station in brine pipeline road will
The salt receiving is collected to former salt collection device.
In the present embodiment, outside the day meeting brine pipeline road, throughput rate is above for three days on end in 13200 cubic metres of premise
Under, when in the salt of calcium ion concentration and No. 1 valve chamber in salt brine pipeline road initial station is detected, calcium ion concentration difference does not surpass
When crossing 5/1000ths, that is, stop to injected clear water in surge tank, the salt making entrance brine pipeline road is former salt.Now defeated
Fouling in halogen pipeline has removed part, can not only reach outer throughput rate and require, and through calculating, the pressure in brine pipeline road
Power is also in the range of safe pressure；If now still to injected clear water in surge tank, until brine pipeline road initial station is detected
Calcium ion concentration phase in the salt at calcium ion concentration and brine pipeline road tail station in calcium ion concentration in salt, the salt of No. 1 valve chamber
Differ from all less than 5/1000ths, and equally meet the day in brine pipeline road outer throughput rate and be above for three days on end in 13200 cubes
The premise of rice, shows that fouling in brine pipeline road has all removed clean, but like this it is still necessary to a period of time, and
When brine pipeline tail stand out be light salt if, its economic worth is far below the economic worth of former salt, thus can serious shadow
Ring the economic benefit to enterprise；According further to calculating, though the day outer throughput rate only meeting brine pipeline road be above for three days on end in
13200 cubic metres, and when calcium ion in the salt of calcium ion concentration and No. 1 valve chamber in salt brine pipeline road initial station is detected
Concentration difference, less than in the case of 5/1000ths this two conditions, stops, to injected clear water in surge tank, making entrance brine pipeline
The salt in road is former salt.Although slow fouling still can be started in brine pipeline road, through calculating, when the dirt tied makes day
The time that outer throughput rate rises to dangerous pressure region less than the pressure in standard value, brine pipeline road needs a year and a half, and therefore, this is real
The technical scheme applying example is most economical effective scheme.
Claims (8)
1. brine pipeline road does not stop production cleaning online it is characterised in that comprising the following steps：
1）When the day in brine pipeline road, outer throughput rate was below 13050 cubic metres in continuous 3 ~ 5 days, to brine pipeline road initial station
Injected clear water in the surge tank of feed end connection, the salt making entrance brine pipeline road is light salt；
2）When the day in brine pipeline road, outer throughput rate all reached at or above 13200 cubic metres at least continuous 2 days, stop to buffering
Injected clear water in tank, the salt making entrance brine pipeline road is former salt.
2. brine pipeline road as claimed in claim 1 do not stop production online cleaning it is characterised in that：Described step 1）In, institute
The sodium chloride concentration stating light salt is in the range of 185 gram per liter ~ 195 gram per liter.
3. brine pipeline road as claimed in claim 2 do not stop production online cleaning it is characterised in that：To described brine pipeline road
The time being inside continuously injected into light salt is in the range of 5 days ~ 7 days.
4. brine pipeline road as claimed in claim 1 do not stop production online cleaning it is characterised in that：Described step 1）In, point
In the salt of No. 1 valve chamber that Jian Ce be not set on calcium ion concentration and brine pipeline road in the salt of brine pipeline road initial station, calcium ion is dense
Degree；And described step 2）In, when in the salt of brine pipeline road initial station, calcium ion concentration is dense with calcium ion in the salt of No. 1 valve chamber
When degree difference is less than 5/1000ths, stop to injected clear water in surge tank, the salt making entrance brine pipeline road is former halogen
Water.
5. brine pipeline road as claimed in claim 4 do not stop production online cleaning it is characterised in that：In described step 1, every
Every 1.5 hours ~ 2.5 hours, respectively in the salt of calcium ion concentration and No. 1 valve chamber in the salt of detection brine pipeline road initial station
Calcium ion concentration.
6. brine pipeline road as claimed in claim 4 do not stop production online cleaning it is characterised in that：Described step 1）In, also
The salt kind calcium ion concentration at brine pipeline road tail station is detected；Described step 2）In, when in the salt of brine pipeline road initial station
In the salt at calcium ion concentration and brine pipeline road tail station in calcium ion concentration, the salt of No. 1 valve chamber, calcium ion concentration differs all not
When more than 5/1000ths, stop to injected clear water in surge tank, the salt making entrance brine pipeline road is former salt.
7. brine pipeline road as claimed in claim 6 do not stop production online cleaning it is characterised in that：Described step 1）In, often
Interval 1.5 hours ~ 2.5 hours, calcium ion concentration, the salt of No. 1 valve chamber in the salt of detection brine pipeline road initial station respectively
Calcium ion concentration in the salt at middle calcium ion concentration and brine pipeline road tail station.
8. brine pipeline road as claimed in claim 1 do not stop production online cleaning it is characterised in that：Described step 1）In, will
The salt that brine pipeline road tail station receives is collected to light salt collection device, and the salt at brine pipeline road tail station is sampled staying
Deposit；Described step 2）In, after the bittern samples at least continuous 2 brine pipeline roads tail station are limpid, the tail station in brine pipeline road will
The salt receiving is collected to former salt collection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918578.4A CN106391597B (en) | 2016-10-21 | 2016-10-21 | Halogen transportation pipeline does not stop production cleaning process online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918578.4A CN106391597B (en) | 2016-10-21 | 2016-10-21 | Halogen transportation pipeline does not stop production cleaning process online |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106391597A true CN106391597A (en) | 2017-02-15 |
| CN106391597B CN106391597B (en) | 2019-06-28 |
Family
ID=58012866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610918578.4A Expired - Fee Related CN106391597B (en) | 2016-10-21 | 2016-10-21 | Halogen transportation pipeline does not stop production cleaning process online |
Country Status (1)
| Country | Link |
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| CN (1) | CN106391597B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190156A (en) * | 2017-05-26 | 2017-09-22 | 江西理工大学 | A kind of method of the Extraction of rare earth from ion adsorption type rare earth ore |
| CN108097050A (en) * | 2017-12-16 | 2018-06-01 | 上海东硕环保科技股份有限公司 | A kind of method for cleaning ED film calcium sulfate scales |
| CN110899263A (en) * | 2019-12-04 | 2020-03-24 | 江苏新源矿业有限责任公司 | Long-distance brine conveying pipeline on-line non-stop conveying cleaning process and cleaning device |
| CN115837395A (en) * | 2022-11-14 | 2023-03-24 | 东华工程科技股份有限公司 | Treatment method for byproduct sodium chloride tail salt after lithium extraction in salt lake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107190156A (en) * | 2017-05-26 | 2017-09-22 | 江西理工大学 | A kind of method of the Extraction of rare earth from ion adsorption type rare earth ore |
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| CN108097050A (en) * | 2017-12-16 | 2018-06-01 | 上海东硕环保科技股份有限公司 | A kind of method for cleaning ED film calcium sulfate scales |
| CN110899263A (en) * | 2019-12-04 | 2020-03-24 | 江苏新源矿业有限责任公司 | Long-distance brine conveying pipeline on-line non-stop conveying cleaning process and cleaning device |
| CN115837395A (en) * | 2022-11-14 | 2023-03-24 | 东华工程科技股份有限公司 | Treatment method for byproduct sodium chloride tail salt after lithium extraction in salt lake |
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| Publication number | Publication date |
|---|---|
| CN106391597B (en) | 2019-06-28 |
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Granted publication date: 20190628 Termination date: 20201021 |