CN108971166A - A kind of ethanol amine storage tank cleaning method - Google Patents
A kind of ethanol amine storage tank cleaning method Download PDFInfo
- Publication number
- CN108971166A CN108971166A CN201810557585.5A CN201810557585A CN108971166A CN 108971166 A CN108971166 A CN 108971166A CN 201810557585 A CN201810557585 A CN 201810557585A CN 108971166 A CN108971166 A CN 108971166A
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- Prior art keywords
- storage tank
- tank
- ethanol amine
- sludge
- steam
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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
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
-
- 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
- B08B9/08—Cleaning containers, e.g. tanks
-
- 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
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0856—Cleaning of water-treatment installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of ethanol amine storage tank cleaning methods, are related to chemical production technical field, which includes: to rinse displacement repeatedly to the storage tank water inlet of ethanol amine, and the waste water containing ethanol amine after cleaning is recycled；The sludge of ethanol amine tank bottom is sufficiently stirred, while steam is carried out to the storage tank and boils tank, sludge and gas are respectively processed；Blind plate is isolated with device pipeline on storage tank gas phase inlet and outlet flange and liquid phase inlet and outlet flange, while opening manhole and top skylight, and spindle flow fan inwardly carries out forced ventilation 24 hours at manhole；Mechanical chipping is carried out to dead angle position in into storage tank.The embodiment of the present invention is respectively separately recovered waste water therein, exhaust gas, sludge, and it is aerated processing, it avoids waste, improve benefit, while also avoiding stimulation of the ethanol amine weak solution to the eye of the staff of storage tank cleaning, skin and mucous membrane, improve safety.
Description
Technical field
The present invention relates to chemical production technical field more particularly to a kind of ethanol amine storage tank cleaning methods.
Background technique
Ethanol amine is colorless and transparent thick liquid at room temperature, there is hygroscopicity and ammonia odor, is typically used as chemical reagent, molten
Agent, emulsifier, rubber accelerator, corrosion inhibitor etc..The storage tank of ethanol amine is stored in shut-down (breakdown) mainteance scale removal process, ethanol amine
Weak solution it is irritant to eye, skin and mucous membrane, and the current prior art is to the manner of cleaning up of ethanol amine storage tank, safety
Property it is poor and be unable to classification processing exhaust gas, waste water, useless mud, therefore, currently urgently there is the good ethanol amine of a kind of safety, effect
Storage tank cleaning method.
Summary of the invention
In order to overcome the shortcomings of Related product in the prior art, the present invention proposes a kind of ethanol amine storage tank cleaning method, solution
The manner of cleaning up safety of certainly current ethanol amine storage tank is poor and the problem of being unable to classification processing exhaust gas, waste water, useless mud.
The present invention provides a kind of ethanol amine storage tank cleaning methods, comprising: it is more to rinse displacement to the storage tank water inlet of ethanol amine
It is secondary, the waste water containing ethanol amine after cleaning is recycled；
The sludge of ethanol amine tank bottom is sufficiently stirred, while steam is carried out to the storage tank and boils tank, to sludge
And gas is respectively processed；
Blind plate is isolated with device pipeline on storage tank gas phase inlet and outlet flange and liquid phase inlet and outlet flange, while opening people
Hole and top skylight, spindle flow fan inwardly carries out forced ventilation 24 hours at manhole；
Mechanical chipping is carried out to dead angle position in into storage tank.
In some embodiments of the present invention, described intake to ethanol amine storage tank rinses displacement repeatedly, after cleaning
Waste water containing ethanol amine carries out recovery processing and specifically includes:
It intakes to ethanol amine storage tank and rinses displacement repeatedly, scavenging period is not less than 12 hours, will contain ethanol amine after cleaning
Waste water send to disused aine liquid tank；
After the waste water that disused aine liquid tank contains ethanolamine solutions is mixed with fresh amine liquid, the circulation life of amine liquid is intermittently added to
Production system, impurity therein are removed by online amine purification system.
In some embodiments of the present invention, the sludge to ethanol amine tank bottom is sufficiently stirred, simultaneously
Steam is carried out to the storage tank and boils tank, sludge and gas are respectively processed and specifically included:
It is stirred with sludge of the jet pump to ethanol amine tank bottom, boils tank 2 hours with steam while agitation, steam
Exhaust gas in tank is taken out of and is drained into alkali liquid tank absorption processing；
It is opened sludge pump 0.5 hour after stirring, stops supply steam while opening sludge pump, sludge is sent to prolonging
Slow coking plant, sludge enter after the small water supply pump inlet of coking plant is mixed with small water supply to coking emptying tower processing；
Sludge it is clear it is complete after, continue steam and boil tank 24 hours, the waste water that steam boils tank is collected by aforementioned alkali liquid tank, and general
Spent lye after reaction is sent to the processing of sulphur unit sewage stripping, converts sulphur for sulphur-containing exhaust gas therein.
In some embodiments of the present invention, described that dead angle position progress mechanical chipping is specifically wrapped into storage tank is interior
It includes:
Vision-based detection is carried out to tank inside and judges whether there is sludge residual at dead angle position, and tank inside is carried out
Air detection；
Confirmation air meet safety standard after, into storage tank in mechanical chipping is carried out one by one to dead angle position.
Compared with prior art, the present invention has the following advantages:
Ethanol amine storage tank cleaning method described in the embodiment of the present invention rinses displacement repeatedly by intaking to storage tank, and respectively
Waste water therein, exhaust gas, sludge are separately recovered, and are aerated processing, waste is avoided, improves benefit, together
When also avoid stimulation of the ethanol amine weak solution to the eye of the staff of storage tank cleaning, skin and mucous membrane, improve safety
Property.
Specific embodiment
The invention can be realized in many different forms, however it is not limited to embodiment described herein, on the contrary, mentioning
Purpose for these embodiments is to make the disclosure of the present invention more thorough and comprehensive.Based on the implementation in the present invention
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The scope of protection of the invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Referenced herein " embodiment " is it is meant that retouch in conjunction with the embodiments
The special characteristic or characteristic stated may include at least one embodiment of the present invention.Each position in the description occurs
The phrase might not each mean identical embodiment, nor the independent or alternative implementation with other embodiments mutual exclusion
Example.Those skilled in the art explicitly and implicitly understand that embodiment described herein can be with other embodiments phase
In conjunction with.
Ethanol amine storage tank cleaning method of the present invention specifically comprises the following steps:
A, displacement is rinsed repeatedly to the storage tank water inlet of ethanol amine, the waste water containing ethanol amine after cleaning is carried out at recycling
Reason；
B, the sludge of ethanol amine tank bottom is sufficiently stirred, while steam is carried out to the storage tank and boils tank, to dirt
Mud and gas are respectively processed；
C, blind plate is isolated with device pipeline on storage tank gas phase inlet and outlet flange and liquid phase inlet and outlet flange, is opened simultaneously
Manhole and top skylight, spindle flow fan inwardly carries out forced ventilation 24 hours at manhole；
D, mechanical chipping is carried out to dead angle position into storage tank.
In step a, it is described to ethanol amine storage tank intake rinse displacement repeatedly, by the waste water containing ethanol amine after cleaning into
Row recovery processing specifically includes: intaking to ethanol amine storage tank and rinses displacement repeatedly, scavenging period is not less than 12 hours, after cleaning
The waste water containing ethanol amine send to disused aine liquid tank；After the waste water that disused aine liquid tank contains ethanolamine solutions is mixed with fresh amine liquid,
Amine liquid circulating production system is intermittently added to, impurity therein is removed by online amine purification system.After it will clean
The waste water containing ethanol amine mixed with fresh amine liquid, can be effectively to residual in storage tank as the supplement of amine liquid circulating production system
The ethanol amine stayed is recycled, and is avoided waste, is improved benefit.
In stepb, the sludge to ethanol amine tank bottom is sufficiently stirred, while being steamed to the storage tank
Vapour boils tank, is respectively processed and specifically includes to sludge and gas: being carried out with sludge of the jet pump to ethanol amine tank bottom
Agitation boils tank 2 hours with steam while agitation, and the exhaust gas in tank is taken out of and is drained into alkali liquid tank absorption processing by steam；It stirs
It is opened sludge pump 0.5 hour after mixing, stops supply steam while opening sludge pump, sludge is sent to delay coke and is disguised
It sets, sludge enters after the small water supply pump inlet of coking plant is mixed with small water supply to coking emptying tower processing；Sludge it is clear it is complete after, continue
Steam boils tank 24 hours, the waste water that steam boils tank is collected by aforementioned alkali liquid tank, and the spent lye after reaction is sent to sulphur
The processing of device sewage stripping, converts sulphur for sulphur-containing exhaust gas therein.By carrying out agitation to sludge and adequately steaming
Vapour supply, can efficiently separate out the exhaust gas (sulfurous gas) adhered in sludge, while being drained into lye by steam induced effect
Tank carries out absorption processing, and the lye for absorbing exhaust gas and the waste water that steam boils tank continues to mix, and the spent lye after reaction is sent
To the processing of sulphur unit sewage stripping, the exhaust gas of sulfur-bearing can be eventually converted into sulphur, realize the high efficiente callback of exhaust gas；
Sludge (containing the remaining iron sulfide compounds of sta-salt hot on tank skin) is extremely burnt after then being mixed by coking plant with small water supply
Change emptying tower and carries out safe handling after pyrogenetic reaction.
In step c, storage tank gas phase import and export blind plate and device pipeline on flange and liquid phase inlet and outlet flange carry out every
From so that raw material be avoided to reveal while convenient for subsequent ventilation process；After being closed respectively to gas-liquid inlet and outlet, open simultaneously
Manhole and top skylight, spindle flow fan inwardly carries out forced ventilation 24 hours at manhole, steams the part adhered on storage tank
Outside is discharged in the moisture of vapour condensation and the air that mixes of inside.
It is described that dead angle position progress mechanical chipping is specifically included into storage tank is interior: tank inside is carried out in step d
Vision-based detection judges whether there is sludge residual at dead angle position, and carries out air detection to tank inside；Confirmation air meets
After safety standard, into storage tank in mechanical chipping is carried out one by one to dead angle position.Since the shape by tank inside is limited or preceding
The cleaning efficiency for stating step influences, and tank inside is likely present dead angle position to there is partial sludge residual, at this time right
After tank inside is aerated processing, vision-based detection is carried out to tank inside and judges whether there is sludge residual at dead angle position, if
There is sludge residual, then air detection confirmation air is carried out to tank inside and meet safety standard, if meeting safety standard can arrange
Staff enters in the storage tank carries out mechanical chipping to the sludge of dead angle site residues one by one.
Ethanol amine storage tank cleaning method described in the embodiment of the present invention rinses displacement repeatedly by intaking to storage tank, and respectively
Waste water therein, exhaust gas, sludge are separately recovered, and are aerated processing, waste is avoided, improves benefit, together
When also avoid stimulation of the ethanol amine weak solution to the eye of the staff of storage tank cleaning, skin and mucous membrane, improve safety
Property.
The above is only the embodiment of the present invention, are not intended to limit the scope of the patents of the invention, although with reference to the foregoing embodiments
Invention is explained in detail, still can be to aforementioned each specific reality for coming for those skilled in the art
It applies technical solution documented by mode to modify, or equivalence replacement is carried out to part of technical characteristic.It is all to utilize this
The principle of equal effects that description of the invention content is done directly or indirectly is used in other related technical areas, similarly in this hair
Within bright scope of patent protection.
Claims (4)
1. a kind of ethanol amine storage tank cleaning method characterized by comprising
Displacement is rinsed repeatedly to the storage tank water inlet of ethanol amine, the waste water containing ethanol amine after cleaning is recycled；
The sludge of ethanol amine tank bottom is sufficiently stirred, while steam is carried out to the storage tank and boils tank, to sludge and
Gas is respectively processed；
Blind plate on flange and liquid phase inlet and outlet flange is imported and exported in storage tank gas phase to be isolated with device pipeline, at the same open manhole with
Top skylight, spindle flow fan inwardly carries out forced ventilation 24 hours at manhole；
Mechanical chipping is carried out to dead angle position in into storage tank.
2. ethanol amine storage tank cleaning method according to claim 1, which is characterized in that described intake to ethanol amine storage tank is rushed
It washes displacement repeatedly, the waste water containing ethanol amine after cleaning is subjected to recovery processing and is specifically included:
It intakes to ethanol amine storage tank and rinses displacement repeatedly, scavenging period is not less than 12 hours, will be useless containing ethanol amine after cleaning
Water is sent to disused aine liquid tank；
After the waste water that disused aine liquid tank contains ethanolamine solutions is mixed with fresh amine liquid, amine liquid circulation production system is intermittently added to
System, impurity therein are removed by online amine purification system.
3. ethanol amine storage tank cleaning method according to claim 1, which is characterized in that described to ethanol amine tank bottom
Sludge is sufficiently stirred, while being carried out steam to the storage tank and being boiled tank, is respectively processed specific packet to sludge and gas
It includes:
It is stirred with sludge of the jet pump to ethanol amine tank bottom, boils tank 2 hours with steam while agitation, steam is by tank
Interior exhaust gas is taken out of and is drained into alkali liquid tank absorption processing；
It is opened sludge pump 0.5 hour after stirring, stops supply steam while opening sludge pump, sludge is sent to delay coke
Makeup is set, and sludge enters after the small water supply pump inlet of coking plant is mixed with small water supply to coking emptying tower processing；
Sludge it is clear it is complete after, continue steam and boil tank 24 hours, the waste water that steam boils tank is collected by aforementioned alkali liquid tank, and will react
Spent lye afterwards is sent to the processing of sulphur unit sewage stripping, converts sulphur for sulphur-containing exhaust gas therein.
4. ethanol amine storage tank cleaning method according to claim 1, which is characterized in that described to enter in storage tank to dead angle portion
Position carries out mechanical chipping and specifically includes:
Vision-based detection is carried out to tank inside and judges whether there is sludge residual at dead angle position, and air is carried out to tank inside
Detection；
Confirmation air meet safety standard after, into storage tank in mechanical chipping is carried out one by one to dead angle position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810557585.5A CN108971166A (en) | 2018-06-01 | 2018-06-01 | A kind of ethanol amine storage tank cleaning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810557585.5A CN108971166A (en) | 2018-06-01 | 2018-06-01 | A kind of ethanol amine storage tank cleaning method |
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| Publication Number | Publication Date |
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| CN108971166A true CN108971166A (en) | 2018-12-11 |
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| CN201810557585.5A Pending CN108971166A (en) | 2018-06-01 | 2018-06-01 | A kind of ethanol amine storage tank cleaning method |
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Citations (8)
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|---|---|---|---|---|
| JPH08243519A (en) * | 1995-03-13 | 1996-09-24 | Ishikawajima Harima Heavy Ind Co Ltd | Cleaning device for residual oil in tank |
| CN1238246A (en) * | 1999-05-19 | 1999-12-15 | 辽河石油勘探局兴隆台采油厂 | Technology and apparatus for cleaning oil tank |
| CN102319709A (en) * | 2011-05-24 | 2012-01-18 | 合肥通用机械研究院 | Method for crushing and cleaning oil sludge in oil storage tank by using liquid cannon |
| CN105107359A (en) * | 2015-09-09 | 2015-12-02 | 武汉佳益化工有限公司安庆分公司 | Cleaning method of internal floating roof light oil tank |
| CN205289162U (en) * | 2015-11-19 | 2016-06-08 | 黄河裕泰（宁夏）环保科技有限公司 | Oil storage tank machinery self - cleaning system |
| CN106714988A (en) * | 2014-09-17 | 2017-05-24 | 孙圣根 | Method for cleaning crude oil tank by water and system thereof |
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2018
- 2018-06-01 CN CN201810557585.5A patent/CN108971166A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08243519A (en) * | 1995-03-13 | 1996-09-24 | Ishikawajima Harima Heavy Ind Co Ltd | Cleaning device for residual oil in tank |
| CN1238246A (en) * | 1999-05-19 | 1999-12-15 | 辽河石油勘探局兴隆台采油厂 | Technology and apparatus for cleaning oil tank |
| CN102319709A (en) * | 2011-05-24 | 2012-01-18 | 合肥通用机械研究院 | Method for crushing and cleaning oil sludge in oil storage tank by using liquid cannon |
| CN106714988A (en) * | 2014-09-17 | 2017-05-24 | 孙圣根 | Method for cleaning crude oil tank by water and system thereof |
| CN105107359A (en) * | 2015-09-09 | 2015-12-02 | 武汉佳益化工有限公司安庆分公司 | Cleaning method of internal floating roof light oil tank |
| CN205289162U (en) * | 2015-11-19 | 2016-06-08 | 黄河裕泰（宁夏）环保科技有限公司 | Oil storage tank machinery self - cleaning system |
| CN107639090A (en) * | 2016-12-01 | 2018-01-30 | 中国石油化工股份有限公司 | Acid water storage tank shut-down (breakdown) mainteance sulphur iron rot product incidents of spontaneous combustion prevention method |
| CN206751448U (en) * | 2017-05-05 | 2017-12-15 | 金澳科技（湖北）化工有限公司 | A kind of improved liquefied gas alkaline mud injection sewage stripping Tower System |
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Application publication date: 20181211 |