CN109592833A - The decrement treatment method of oil-containing dross in petrochemical industry - Google Patents
The decrement treatment method of oil-containing dross in petrochemical industry Download PDFInfo
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- CN109592833A CN109592833A CN201910051776.9A CN201910051776A CN109592833A CN 109592833 A CN109592833 A CN 109592833A CN 201910051776 A CN201910051776 A CN 201910051776A CN 109592833 A CN109592833 A CN 109592833A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
Abstract
A kind of decrement treatment method of oil-containing dross in petrochemical industry is provided, after dross to be processed and water mixed diluting, using electrolysis method except the surfactant in removing dross and water mixed liquid, again with the various molecules in acid denaturation starch separation crude oil, it is set to sink by gravity, the COD and oil content in aqueous solution are reduced with microelectrolysis processing equipment, reach discharge standard or recycling and reusing standard, it solves the problems, such as that increasing storage space need to be occupied because dross quantity of solid waste is big, after extracting the Isolated as oil in dross and handling residual mixed liquor, greatly reduce the volume of dross, to reduce the storage space of oil plant storage dross solid waste, dross is reduced to environment and the person harm.
Description
Technical field
The invention belongs to field of environment engineering technology, and in particular to the decrement treatment side of oil-containing dross in a kind of petrochemical industry
Method.
Background technique
For crude oil from mined to oil plant is entered, centre is divided into a lot of step and process.During each, it is
Reach conveying or processing technology requirement, is both needed to that various surfactants and the fine-grained solid of various bands and liquid, crude oil is added
It reaches after oil plant carries out desalting and dewatering, accompaniment dross has become a kind of appearance and black is presented, with the distinctive evil of petroleum
A kind of High water cut body of paste in stink road.Because its High water cut, highly viscous thus volume are very big, have light-weight, bulky
Moisture content can not be separated by using centrifuge high speed rotation and achieve the purpose that reduce volume by feature.A large amount of drosses simultaneously
Enter in refining catalytic cracking reaction container processes with crude oil and burn, a large amount of aphlogistic paste objects can be generated, thus
The associated pipe for blocking refining equipment causes refining equipment efficiency to reduce or shut down.Since it contains less amount of crude oil,
Environment can be endangered, thus is unable to direct emission, needs to occupy a large amount of container and is stored.Therefore become a kind of endangers ring to dross
The hazardous solid waste in border and the person, because of itself and crude oil association, the enormous amount existing for the whole nation, therefore, it is necessary to be changed
Into.
Summary of the invention
Present invention solves the technical problem that: a kind of decrement treatment method of oil-containing dross in petrochemical industry is provided, it will be wait locate
After managing dross and water mixed diluting, using electrolysis method except the surfactant in removing dross and water mixed liquid, then acid denaturation is used
Various molecules in starch separation crude oil make it sink by gravity, reduce the change in aqueous solution with microelectrolysis processing equipment
Oxygen demand and oil content are learned, discharge standard or recycling and reusing standard is reached, efficiently solves because of dross quantity of solid waste
The problem of increasing storage space need to be occupied greatly, by extracting the Isolated as oil in dross and handling residual mixed liquor
Afterwards, the volume of dross is greatly reduced, to reduce the storage space of oil plant storage dross solid waste, reduces dross
To environment and the person harm.
The technical solution adopted by the present invention: the decrement treatment method of oil-containing dross in petrochemical industry, comprising the following steps:
1) blender is installed in the cylindrical can that upper end is open-like shape and lower end is pyramidal structure, by dross A to be processed
It is fitted into cylindrical can by upper end opening, and the mixed liquor of dross in cylindrical can and water is added after water is added into cylindrical can
Heat, dispersing and dissolving Yu Shuizhong after keeping the dross of appearance jelly heated；
2) emulsifier is added into cylindrical can, starting blender is stirred the mixed liquor in cylindrical can；
3) two electrode plates are put into the cylindrical can that stirring finishes, and be passed through after direct current to two electrode plates to circle
Dross mixed liquor in tank is electrolysed, and is stopped after being electrolysed a few hours；
4) acid denaturation starch is added into the dross mixed liquor after cylindrical can Inner electrolysis and is stirred；
5) inorganic agent is added into cylindrical can, starting blender is stirred, keeps the temperature and stand after stirring, make cylindrical can
Interior mixed liquor is layered according to different densities；
6) it is sent into dedicated oil storage tank after being isolated the grease for being distributed in cylindrical can top using oil scraping plate through pipeline,
The valve for being set to cylindrical can lower part is opened, will be distributed in after lotion of the cylindrical can middle and lower part than water weight is isolated and be put into quartz sand mistake
It is filtered in filter；
7) aqueous solution filtered out in quartz filter is sent into the reservoir of microelectrolysis processing equipment and carries out micro- electricity
Solution processing, the oil content of every liter of liquid is down to 1mg after microelectrolysis processing.
Above-mentioned steps 1) in, the blender that installation revolving speed is 40r/min~60r/min in the cylindrical can, and using to
The mode that steam is passed through in cylindrical can heats the mixed liquor of dross and water in cylindrical can, is heated to the temperature of mixed liquor in cylindrical can
Always it is not less than 50 DEG C.
Above-mentioned steps 1) in, in the cylindrical can additional amount of water according to dross A and water 1:9~11 to be processed volume ratio
It is added.
Above-mentioned steps 2) in, the emulsifier is OP-10 and the additional amount of OP-10 is the 1.5% of dross A volume to be processed
~2.5%, the blender to the mixed liquor mixing time in cylindrical can be not less than 30min, and stir when mixed liquor stirring
Temperature is not less than 50 DEG C.
Above-mentioned steps 3) in, two electrode plates are passed through 36V direct current and carry out electricity to the dross mixed liquor in cylindrical can
Solution, electrolysis time are 3h~4h.
Above-mentioned steps 4) in, the acid denaturation starch being added in the dross mixed liquor is the 4% of dross A volume to be processed
~5%, be added acid denaturation starch after stir 30min~50min after stop.
Above-mentioned steps 5) in, the inorganic agent is the compound of sulfate and the additional amount of inorganic agent is dross A to be processed
The 4%~5% of volume, after the blender stirs 30min~40min to the mixed liquor in cylindrical can, mixed liquor is being not less than
2h~3h is stood at a temperature of 50 DEG C.
The present invention compared with prior art the advantages of:
1, after the technical program is by extracting the Isolated as oil in dross and handling residual mixed liquor, subtract significantly
The volume of dross is lacked, to reduce the storage space of oil plant storage dross solid waste；
2, the technical program separates the oily extracted in dross using quartz filter and microelectrolysis processing equipment
Remaining mixed liquor is handled after object, is greatly reduced COD (COD) and oil content in remaining mixed liquor, is made
The oil content of every liter of liquid is obtained down to 1mg, reaches discharge standard or recycling and reusing standard；
3, the technical program technical process is simple, and investment and operating cost are small, at low cost, greatly reduces storage dross
Burden, use value with higher, application easy to spread.
Specific embodiment
The first embodiment of the invention is described below.
The decrement treatment method of oil-containing dross in petrochemical industry, comprising the following steps:
1) blender is installed in the cylindrical can that upper end is open-like shape and lower end is pyramidal structure, by dross A to be processed
It is fitted into cylindrical can by upper end opening, and the mixed liquor of dross in cylindrical can and water is added after water is added into cylindrical can
Heat, dispersing and dissolving Yu Shuizhong after keeping the dross of appearance jelly heated；Specifically, installation revolving speed is 40r/ in the cylindrical can
The blender of min~60r/min, and heat by the way of being passed through steam into cylindrical can the mixing of dross and water in cylindrical can
Liquid, the temperature for being heated to mixed liquor in cylindrical can are not less than 50 DEG C always；Specifically, in the cylindrical can water additional amount according to
The volume ratio of dross A to be processed and water 1:9 is added, that is, 9 times of dross A volume of water to be processed is added；
2) emulsifier is added into cylindrical can, starting blender is stirred the mixed liquor in cylindrical can；Specifically, institute
State emulsifier be OP-10 (polyoxethylene octylphenyl phenol ether -10) and the additional amount of OP-10 be dross A volume to be processed
1.5%, the blender to the mixed liquor mixing time in cylindrical can be not less than 30min, and stir when mixed liquor stirring temperature
Degree is not less than 50 DEG C, by the way that OP-10 is added into cylindrical can, improves the surfaces in cylindrical can in emulsion between various composition phases
Tension is allowed to form the substance of uniform and stable dispersion or emulsion；
3) two electrode plates are put into the cylindrical can that finishes of stirring, and right after being passed through 36V direct current to two electrode plates
Dross mixed liquor in cylindrical can is electrolysed, and is stopped after being electrolysed 3h, by being electrolysed to mixed liquor in cylindrical can, is made dross
Surfactant in mixed liquor floats up to liquid level after being decomposed into micro-bubble, thus remove formed dross micelle it is basic because
Element；
4) acid denaturation starch is added into the dross mixed liquor after cylindrical can Inner electrolysis and is stirred；Specifically, institute
Stating the acid denaturation starch being added in dross mixed liquor is the 4% of dross A volume to be processed, is stirred after acid denaturation starch is added
30min separates a small amount of crude oil contained in dross voluntarily with the various particles of package, wherein sulphur when acid denaturation starch
The processed converted starch of acid, acid denaturation starch is added into cylindrical can, convenient for layering, separates various small in crude oil
Particle makes it sink by gravity；
5) inorganic agent is added into cylindrical can, starting blender is stirred, keeps the temperature and stand after stirring, make cylindrical can
Interior mixed liquor is layered according to different densities；Specifically, the inorganic agent is the compound of sulfate and the additional amount of inorganic agent
It is the 4% of dross A volume to be processed, the compound of the sulfate is the mixing compound of sodium sulphate and sodium metasilicate, described to stir
It mixes device and 30min is stirred to the mixed liquor in cylindrical can, make dross thick in cylindrical can under the action of inorganic agent, by difference
Density is divided into upper, middle and lower-ranking, then mixed liquor not less than 50 DEG C at a temperature of stand 2h；
6) it is sent into dedicated oil storage tank after being isolated the grease for being distributed in cylindrical can top using oil scraping plate through pipeline,
The valve for being set to cylindrical can lower part is opened, will be distributed in cylindrical can, the lotion that lower part is heavier than water is put into quartz sand after isolating
It is filtered in filter, wherein quartz filter is market approved product, is chosen according to treating capacity, is not repeated herein；
7) aqueous solution filtered out in quartz filter is sent into the reservoir of microelectrolysis processing equipment and carries out micro- electricity
Solution processing, micro electrolysis tech are the processes of current processing high concentrated organic wastewater, and also known as electrolysis method, the country just has ready-made
The supply of microelectrolysis processing equipment, for microelectrolysis processing equipment according to treating capacity outsourcing, microelectrolysis processing equipment is using filling out
1.2V potential difference caused by the micro-electrolysis material itself filled in waste water carries out electrolysis processing to waste water, to reach degrading waste water
The purpose of middle organic pollutant will form numerous micro cell system after system water flowing in microelectrolysis processing equipment, in its work
An electric field is constituted with space, generated new ecological H-, Fe2+ etc. occur with components many in waste water during processing
Redox reaction, to have the function that reduce oil content, reduce COD (COD) and nitrogen oxygen content, therefore, through micro-
The indices of solution are reachable " GB31570-2015 petroleum refining industry pollutant emission standard " after electrolysis processing.
Second of embodiment of the invention is described below.
The decrement treatment method of oil-containing dross in petrochemical industry, comprising the following steps:
1) blender is installed in the cylindrical can that upper end is open-like shape and lower end is pyramidal structure, by dross A to be processed
It is fitted into cylindrical can by upper end opening, and the mixed liquor of dross in cylindrical can and water is added after water is added into cylindrical can
Heat, dispersing and dissolving Yu Shuizhong after keeping the dross of appearance jelly heated；Specifically, installation revolving speed is 40r/ in the cylindrical can
The blender of min~60r/min, and heat by the way of being passed through steam into cylindrical can the mixing of dross and water in cylindrical can
Liquid, the temperature for being heated to mixed liquor in cylindrical can are not less than 50 DEG C always；Specifically, in the cylindrical can water additional amount according to
The volume ratio of dross A to be processed and water 1:10 is added, that is, 10 times of dross A volume of water to be processed is added；
2) emulsifier is added into cylindrical can, starting blender is stirred the mixed liquor in cylindrical can；Specifically, institute
State emulsifier be OP-10 (polyoxethylene octylphenyl phenol ether -10) and the additional amount of OP-10 be dross A volume to be processed 2%,
The blender to the mixed liquor mixing time in cylindrical can be not less than 30min, and stir when mixed liquor whipping temp it is not low
In 50 DEG C, by the way that OP-10 is added into cylindrical can, the various surface tension constituted between phases in emulsion in improvement cylindrical can,
It is allowed to form the substance of uniform and stable dispersion or emulsion；
3) two electrode plates are put into the cylindrical can that finishes of stirring, and right after being passed through 36V direct current to two electrode plates
Dross mixed liquor in cylindrical can is electrolysed, and is stopped after being electrolysed 3.5h, by being electrolysed mixed liquor in cylindrical can, is made to float
Surfactant in slag mixed liquor floats up to liquid level after being decomposed into micro-bubble, forms the basic of dross micelle to remove
Factor；
4) acid denaturation starch is added into the dross mixed liquor after cylindrical can Inner electrolysis and is stirred；Specifically, institute
Stating the acid denaturation starch being added in dross mixed liquor is the 4.5% of dross A volume to be processed, is stirred after acid denaturation starch is added
40min is mixed, separates a small amount of crude oil contained in dross voluntarily with the various particles of package, wherein to use when acid denaturation starch
Acid denaturation starch is added into cylindrical can for the converted starch that sulfuric acid treatment is crossed, and convenient for layering, separates various micro- in crude oil
Little particle makes it sink by gravity；
5) inorganic agent is added into cylindrical can, starting blender is stirred, keeps the temperature and stand after stirring, make cylindrical can
Interior mixed liquor is layered according to different densities；Specifically, the inorganic agent is the compound of sulfate and the additional amount of inorganic agent
It is the 4.5% of dross A volume to be processed, the compound of the sulfate is the mixing compound of sodium sulphate and sodium metasilicate, described
Blender stirs 35min to the mixed liquor in cylindrical can, makes dross thick in cylindrical can under the action of inorganic agent, by not
Be divided into upper, middle and lower-ranking with density, then mixed liquor not less than 50 DEG C at a temperature of stand 2.5h；
6) it is sent into dedicated oil storage tank after being isolated the grease for being distributed in cylindrical can top using oil scraping plate through pipeline,
The valve for being set to cylindrical can lower part is opened, will be distributed in cylindrical can, the lotion that lower part is heavier than water is put into quartz sand after isolating
It is filtered in filter, wherein quartz filter is market approved product, is chosen according to treating capacity, is not repeated herein；
7) aqueous solution filtered out in quartz filter is sent into the reservoir of microelectrolysis processing equipment and carries out micro- electricity
Solution processing, micro electrolysis tech are the processes of current processing high concentrated organic wastewater, and also known as electrolysis method, the country just has ready-made
The supply of microelectrolysis processing equipment, for microelectrolysis processing equipment according to treating capacity outsourcing, microelectrolysis processing equipment is using filling out
1.2V potential difference caused by the micro-electrolysis material itself filled in waste water carries out electrolysis processing to waste water, to reach degrading waste water
The purpose of middle organic pollutant will form numerous micro cell system after system water flowing in microelectrolysis processing equipment, in its work
An electric field is constituted with space, generated new ecological H-, Fe2+ etc. occur with components many in waste water during processing
Redox reaction, to have the function that reduce oil content, reduce COD (COD) and nitrogen oxygen content, therefore, through micro-
The indices of solution are reachable " GB31570-2015 petroleum refining industry pollutant emission standard " after electrolysis processing.
The third embodiment of the invention is described below.
The decrement treatment method of oil-containing dross in petrochemical industry, comprising the following steps:
1) blender is installed in the cylindrical can that upper end is open-like shape and lower end is pyramidal structure, by dross A to be processed
It is fitted into cylindrical can by upper end opening, and the mixed liquor of dross in cylindrical can and water is added after water is added into cylindrical can
Heat, dispersing and dissolving Yu Shuizhong after keeping the dross of appearance jelly heated；Specifically, installation revolving speed is 40r/ in the cylindrical can
The blender of min~60r/min, and heat by the way of being passed through steam into cylindrical can the mixing of dross and water in cylindrical can
Liquid, the temperature for being heated to mixed liquor in cylindrical can are not less than 50 DEG C always；Specifically, in the cylindrical can water additional amount according to
The volume ratio of dross A to be processed and water 1:11 is added, that is, 10 times of dross A volume of water to be processed is added；
2) emulsifier is added into cylindrical can, starting blender is stirred the mixed liquor in cylindrical can；Specifically, institute
State emulsifier be OP-10 (polyoxethylene octylphenyl phenol ether -10) and the additional amount of OP-10 be dross A volume to be processed
2.5%, the blender to the mixed liquor mixing time in cylindrical can be not less than 30min, and stir when mixed liquor stirring temperature
Degree is not less than 50 DEG C, by the way that OP-10 is added into cylindrical can, improves the surfaces in cylindrical can in emulsion between various composition phases
Tension is allowed to form the substance of uniform and stable dispersion or emulsion；
3) two electrode plates are put into the cylindrical can that finishes of stirring, and right after being passed through 36V direct current to two electrode plates
Dross mixed liquor in cylindrical can is electrolysed, and is stopped after being electrolysed 4h, by being electrolysed to mixed liquor in cylindrical can, is made dross
Surfactant in mixed liquor floats up to liquid level after being decomposed into micro-bubble, thus remove formed dross micelle it is basic because
Element；
4) acid denaturation starch is added into the dross mixed liquor after cylindrical can Inner electrolysis and is stirred；Specifically, institute
Stating the acid denaturation starch being added in dross mixed liquor is the 5% of dross A volume to be processed, is stirred after acid denaturation starch is added
50min separates a small amount of crude oil contained in dross voluntarily with the various particles of package, wherein sulphur when acid denaturation starch
The processed converted starch of acid, acid denaturation starch is added into cylindrical can, convenient for layering, separates various small in crude oil
Particle makes it sink by gravity；
5) inorganic agent is added into cylindrical can, starting blender is stirred, keeps the temperature and stand after stirring, make cylindrical can
Interior mixed liquor is layered according to different densities；Specifically, the inorganic agent is the compound of sulfate and the additional amount of inorganic agent
It is the 5% of dross A volume to be processed, the compound of the sulfate is the mixing compound of sodium sulphate and sodium metasilicate, described to stir
It mixes device and 40min is stirred to the mixed liquor in cylindrical can, make dross thick in cylindrical can under the action of inorganic agent, by difference
Density is divided into upper, middle and lower-ranking, then mixed liquor not less than 50 DEG C at a temperature of stand 3h；
6) valve for being set to cylindrical can lower part is opened, is isolated the grease for being distributed in cylindrical can top using oil scraping plate
It is sent into dedicated oil storage tank, will be distributed in cylindrical can, the lotion that lower part is heavier than water is put into quartz sand after isolating by pipeline
It is filtered in filter, wherein quartz filter is market approved product, is chosen according to treating capacity, is not repeated herein；
7) aqueous solution filtered out in quartz filter is sent into the reservoir of microelectrolysis processing equipment and carries out micro- electricity
Solution processing, micro electrolysis tech are the processes of current processing high concentrated organic wastewater, and also known as electrolysis method, the country just has ready-made
The supply of microelectrolysis processing equipment, for microelectrolysis processing equipment according to treating capacity outsourcing, microelectrolysis processing equipment is using filling out
1.2V potential difference caused by the micro-electrolysis material itself filled in waste water carries out electrolysis processing to waste water, to reach degrading waste water
The purpose of middle organic pollutant will form numerous micro cell system after system water flowing in microelectrolysis processing equipment, in its work
An electric field is constituted with space, generated new ecological H-, Fe2+ etc. occur with components many in waste water during processing
Redox reaction, to have the function that reduce oil content, reduce COD (COD) and nitrogen oxygen content, therefore, through micro-
The indices of solution are reachable " GB31570-2015 petroleum refining industry pollutant emission standard " after electrolysis processing.
After the technical program is by extracting the Isolated as oil in dross and handling residual mixed liquor, greatly reduce
The volume of dross, to reduce the storage space of oil plant storage dross solid waste, using quartz filter and micro-
Electrolytic processing apparatus handles remaining mixed liquor after the Isolated as oil extracted in dross, greatly reduces remaining
COD (COD) and oil content in mixed liquor so that the oil content of every liter of liquid down to 1mg, reach discharge standard or
Recycling and reusing standard, technical process is simple, and investment and operating cost are small, at low cost, greatly reduces the burden of storage dross,
Use value with higher, application easy to spread.
Above-described embodiment, only presently preferred embodiments of the present invention, involved numerical value are not intended to limit the invention reality
Apply range, therefore all equivalence changes done with content described in the claims in the present invention, the claims in the present invention model should all be included in
Within enclosing.
Claims (7)
1. the decrement treatment method of oil-containing dross in petrochemical industry, it is characterised in that the following steps are included:
1) blender is installed in the cylindrical can that upper end is open-like shape and lower end is pyramidal structure, by dross A to be processed by upper
End opening is fitted into cylindrical can, and is heated after water is added into cylindrical can to the mixed liquor of dross in cylindrical can and water, is made
Dispersing and dissolving Yu Shuizhong after the dross of appearance jelly is heated；
2) emulsifier is added into cylindrical can, starting blender is stirred the mixed liquor in cylindrical can；
3) two electrode plates are put into the cylindrical can that stirring finishes, and be passed through after direct current to two electrode plates in cylindrical can
Dross mixed liquor be electrolysed, be electrolysed a few hours after stop；
4) acid denaturation starch is added into the dross mixed liquor after cylindrical can Inner electrolysis and is stirred；
5) inorganic agent is added into cylindrical can, starting blender is stirred, keeps the temperature and stand after stirring, make in cylindrical can
Mixed liquor is layered according to different densities；
6) it is sent into dedicated oil storage tank, opens through pipeline after being isolated the grease for being distributed in cylindrical can top using oil scraping plate
Valve set on cylindrical can lower part will be distributed in after lotion of the cylindrical can middle and lower part than water weight is isolated and be put into quartz filter
Middle filtering；
7) aqueous solution filtered out in quartz filter is sent into the reservoir of microelectrolysis processing equipment and is carried out at light electrolysis
Reason, the oil content of every liter of liquid is down to 1mg after microelectrolysis processing.
2. the decrement treatment method of oil-containing dross in petrochemical industry according to claim 1, it is characterised in that: above-mentioned steps
1) in, the blender that installation revolving speed is 40r/min~60r/min in the cylindrical can, and use and be passed through steam into cylindrical can
Mode heat the mixed liquor of dross and water in cylindrical can, the temperature for being heated to mixed liquor in cylindrical can is not less than 50 DEG C always.
3. the decrement treatment method of oil-containing dross in petrochemical industry according to claim 1, it is characterised in that: above-mentioned steps
1) in, the additional amount of water is added according to the volume ratio of dross A to be processed and water 1:9~11 in the cylindrical can.
4. the decrement treatment method of oil-containing dross in petrochemical industry according to claim 1, it is characterised in that: above-mentioned steps
2) in, the emulsifier is OP-10 and the additional amount of OP-10 is the 1.5%~2.5% of dross A volume to be processed, the stirring
Device is not less than 30min to the mixed liquor mixing time in cylindrical can, and the whipping temp of mixed liquor is not less than 50 DEG C when stirring.
5. the decrement treatment method of oil-containing dross in petrochemical industry according to claim 1, it is characterised in that: above-mentioned steps
3) in, two electrode plates are passed through 36V direct current and are electrolysed to the dross mixed liquor in cylindrical can, electrolysis time be 3h~
4h。
6. the decrement treatment method of oil-containing dross in petrochemical industry according to claim 1, it is characterised in that: above-mentioned steps
4) in, the acid denaturation starch being added in the dross mixed liquor is the 4%~5% of dross A volume to be processed, and acid become is added
Property starch after stir 30min~50min after stop.
7. the decrement treatment method of oil-containing dross in petrochemical industry according to claim 1, it is characterised in that: above-mentioned steps
5) in, the inorganic agent is the compound of sulfate and the additional amount of inorganic agent is the 4%~5% of dross A volume to be processed, institute
State blender in cylindrical can mixed liquor stir 30min~40min after, mixed liquor not less than 50 DEG C at a temperature of stand 2h
~3h.
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