CN105753066A - Test method for recycling iron oxide powder and waste oil from steel rolling emulsion oil sludge - Google Patents
Test method for recycling iron oxide powder and waste oil from steel rolling emulsion oil sludge Download PDFInfo
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- CN105753066A CN105753066A CN201410770205.8A CN201410770205A CN105753066A CN 105753066 A CN105753066 A CN 105753066A CN 201410770205 A CN201410770205 A CN 201410770205A CN 105753066 A CN105753066 A CN 105753066A
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- greasy filth
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention relates to a test method for recycling an iron oxide powder and waste oil from steel rolling emulsion oil sludge, belongs to the waste recycling and reusing technical field, and is used for solving the technical problems that iron and waste oil contained in emulsion oil sludge cannot be recycled. The test method comprises the following process steps: (1) heating the steel rolling factory emulsion oil sludge in water bath; (2) carrying out centrifugal separation treatment on the emulsion oil sludge by using a centrifugal separation device; (3) putting the oil sludge into a quartz triangular flask, carrying out low-temperature heating with an electric furnace, and steaming out water; (4) increasing the heating temperature of the electric furnace, introducing steam to dilute the waste oil so as to accelerate the oil steaming-out speed, and condensing with circulating cooling water to obtain the waste oil; (5) putting the solid substance obtained after heat treatment of the oil sludge into a carbon tube furnace, carrying out high temperature heating to remove residual oil, and at the same time, fully oxidizing to obtain iron oxide; and (6) grinding the obtained iron oxide by means of a ball mill to obtain fine-grained iron oxide powder. The waste reuse can be achieved, external discharge is reduced, and the test method has the characteristics of energy saving and environmental protection.
Description
Technical field
The present invention relates to a kind of test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth, belong to scrap concrete reutilization technology field.
Background technology
Steel rolling mill's emulsion greasy filth is a kind of garbage containing oily and a large amount of ferrum oxides produced in production process, and outward appearance is black, and its feature is moisture, oil-containing.This emulsion greasy filth iron content proportion is relatively big, has pungent foul smell, and its viscosity is high simultaneously, is easily formed greasy filth group.This greasy filth viscosity is big, be heated containing Organic substance after produce strong smog and pungent abnormal smells from the patient, be not suitable for returning sintering and use, belong to country forbid outer waste discharge gurry owing to environment to be easily caused pollution.Common practice is to transfer to specialized company to process in this greasy filth, therefore can produce the handling use of great number, and the ferrum and the waste oil that contain in emulsion greasy filth cannot recycle the waste caused in certain resource simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth, can effectively reclaim ferrum oxide and waste oil in steel rolling mill's emulsion greasy filth.
For solving above-mentioned technical problem, the technical solution used in the present invention is;
The present invention adopts following processing step:
(1) steel rolling mill's emulsion greasy filth is carried out heating in water bath；
(2) adopt centrifugal separation equipment that described emulsion greasy filth is centrifuged separating treatment；
(3) greasy filth is put in quartz triangular flask, and electric furnace low-temperature heat steams moisture；
(4) improving heating by electric cooker temperature, what pass into Steam dilution waste oil quickening oil steams speed, and circulating cooling water condensation obtains waste oil；
(5) obtaining solid matter after greasy filth heat treatment and put into carbon shirt-circuiting furnace, high-temperature heating removes oil residues, simultaneously fully oxidized prepared ferrum oxide；
(6) ferrum oxide obtained prepares fine granularity croci by ball mill grinding.
The above-mentioned test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth, in described step (1), water bath heating temperature is 60 DEG C～100 DEG C, heat time heating time 10～20min.
The above-mentioned test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth, in described step (2), centrifugation rotating speed is 2000～3000 turns/min, and disengaging time is 10～30min, removes the portion of water and waste oil that contain in greasy filth.
The above-mentioned test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth, in described step (3), greasy filth Distillation recovery oil needs heat treated, heat treated is divided into low-temperature heat stage and high-temperature heating stage, low-temperature heat treatment temperature controls at 100 DEG C～180 DEG C, cold stage mainly removes moisture, heat time heating time 30～50min.
The above-mentioned test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth, in described step (4), heating by electric cooker temperature controls at 200 DEG C～480 DEG C, heat time heating time 100～200min, pass into steam simultaneously, pass into vapor (steam) temperature 100 DEG C～150 DEG C, the iron content block comparatively dried.
The above-mentioned test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth, described step (5) passes through high-temperature calcination, it is calcining 20～40min at 500 DEG C～800 DEG C in treatment temperature, makes that the iron content block obtained in step (4) is fully oxidized obtains ferrum oxide.
The above-mentioned test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth, the ferrum oxide that described step (6) obtains prepares fine granularity croci, Ball-milling Time 10～20h, powder size < 1 micron by ball mill grinding.
Adopt and have the beneficial effects that produced by technique scheme:
(1) present invention adopts cold rolling mill emulsion dirt mud as a raw material to reclaim ferrum therein and waste oil, primary raw material derives from steel plant wastes, its abundant raw material source and with low cost, the present invention can effectively make refuse reclamation reduce outer row, has the feature of energy-saving and environmental protection.
(2) present invention adopts emulsion dirt mud as a raw material to reclaim its waste oil by distillation technique, and remaining iron content block obtains ferrum oxide by calcining is fully oxidized.Its preparation technology is simple, easily promotes.
(3) present invention adopts croci mean particle size range prepared by emulsion dirt mud as a raw material < 1 micron, all iron content 67%, other content is less than 1%.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further detailed explanation.
Embodiment 1: the present invention adopts cold rolling mill emulsion dirt mud as a raw material to reclaim ferrum therein and waste oil, and its concrete technology step is:
(1) take steel rolling mill's emulsion greasy filth and adopt heating in water bath.Heating-up temperature is 60 DEG C, heat time heating time 20min.
(2) adopt centrifugal separation equipment that described emulsion greasy filth is centrifuged separating treatment.2000 turns/min of centrifugation rotating speed, disengaging time is 30min, removes the portion of water and waste oil that contain in greasy filth.
(3) greasy filth is put in special quartz triangular flask, and electric furnace low-temperature heat steams moisture.Low-temperature heat treatment temperature controls at 120 DEG C, heat time heating time 50min.
(4) improve heating by electric cooker temperature, temperature controls at 280 DEG C, heat time heating time 200min, pass into Steam dilution waste oil accelerate oil steam speed, vapor (steam) temperature 100 DEG C.Steam carries fuel-displaced point when can dilute row outside greasy filth steam simultaneously.
(5) obtain solid matter after greasy filth heat treatment and put into carbon shirt-circuiting furnace, by high-temperature calcination, be calcining 40min at 500 DEG C in treatment temperature so that it is fully oxidized obtain ferrum oxide.
(6) ferrum oxide obtained prepares fine granularity croci by ball mill grinding.Ball-milling Time 20h, powder size < 1 micron.
Embodiment 2: the present invention adopts cold rolling mill emulsion dirt mud as a raw material to reclaim ferrum therein and waste oil, and its concrete technology step is:
(1) take steel rolling mill's emulsion greasy filth and adopt heating in water bath.Heating-up temperature is 80 DEG C, heat time heating time 15min.
(2) adopt centrifugal separation equipment that described emulsion greasy filth is centrifuged separating treatment.3000 turns/min of centrifugation rotating speed, disengaging time is 30min, removes the portion of water and waste oil that contain in greasy filth.
(3) greasy filth is put in special quartz triangular flask, and electric furnace low-temperature heat steams moisture.Low-temperature heat treatment temperature controls at 150 DEG C, heat time heating time 40min.
(4) improve heating by electric cooker temperature, temperature controls at 350 DEG C, heat time heating time 150min, pass into Steam dilution waste oil accelerate oil steam speed, vapor (steam) temperature 120 DEG C.Steam carries fuel-displaced point when can dilute row outside greasy filth steam simultaneously.
(5) obtain solid matter after greasy filth heat treatment and put into carbon shirt-circuiting furnace, by high-temperature calcination, be calcining 30min at 600 DEG C in treatment temperature so that it is fully oxidized obtain ferrum oxide.
(6) ferrum oxide obtained prepares fine granularity croci by ball mill grinding.Ball-milling Time 15h, powder size < 1 micron.
Embodiment 3: the present invention adopts cold rolling mill emulsion dirt mud as a raw material to reclaim ferrum therein and waste oil, and its concrete technology step is:
(1) take steel rolling mill's emulsion greasy filth and adopt heating in water bath.Heating-up temperature is 100 DEG C, heat time heating time 10min.
(2) adopt centrifugal separation equipment that described emulsion greasy filth is centrifuged separating treatment.3000 turns/min of centrifugation rotating speed, disengaging time is 10min, removes the portion of water and waste oil that contain in greasy filth.
(3) greasy filth is put in special quartz triangular flask, and electric furnace low-temperature heat steams moisture.Low-temperature heat treatment temperature controls at 180 DEG C, heat time heating time 30min.
(4) improve heating by electric cooker temperature, temperature controls at 480 DEG C, heat time heating time 100min, pass into Steam dilution waste oil accelerate oil steam speed, vapor (steam) temperature 150 DEG C.Steam carries fuel-displaced point when can dilute row outside greasy filth steam simultaneously.
(5) obtain solid matter after greasy filth heat treatment and put into carbon shirt-circuiting furnace, by high-temperature calcination, be calcining 20min at 800 DEG C in treatment temperature so that it is fully oxidized obtain ferrum oxide.
(6) ferrum oxide obtained prepares fine granularity croci by ball mill grinding.Ball-milling Time 10h, powder size < 1 micron.
Claims (7)
1. the test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth, it is characterised in that adopt following processing step:
(1) steel rolling mill's emulsion greasy filth is carried out heating in water bath；
(2) adopt centrifugal separation equipment that described emulsion greasy filth is centrifuged separating treatment；
(3) greasy filth is put in quartz triangular flask, and electric furnace low-temperature heat steams moisture；
(4) improving heating by electric cooker temperature, what pass into Steam dilution waste oil quickening oil steams speed, and circulating cooling water condensation obtains waste oil；
(5) obtaining solid matter after greasy filth heat treatment and put into carbon shirt-circuiting furnace, high-temperature heating removes oil residues, simultaneously fully oxidized prepared ferrum oxide；
(6) ferrum oxide obtained prepares fine granularity croci by ball mill grinding.
2. a kind of test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth as claimed in claim 1, it is characterised in that: in described step (1), water bath heating temperature is 60 DEG C～100 DEG C, heat time heating time 10～20min.
3. a kind of test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth as claimed in claim 1, it is characterized in that: in described step (2), centrifugation rotating speed is 2000～3000 turns/min, disengaging time is 10～30min, removes the portion of water and waste oil that contain in greasy filth.
4. a kind of test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth as claimed in claim 1, it is characterized in that: in described step (3), greasy filth Distillation recovery oil needs heat treated, heat treated is divided into low-temperature heat stage and high-temperature heating stage, low-temperature heat treatment temperature controls at 100 DEG C～180 DEG C, cold stage mainly removes moisture, heat time heating time 30～50min.
5. a kind of test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth as claimed in claim 1, it is characterized in that: in described step (4), heating by electric cooker temperature controls at 200 DEG C～480 DEG C, heat time heating time 100～200min, pass into steam simultaneously, pass into vapor (steam) temperature 100 DEG C～150 DEG C, the iron content block comparatively dried.
6. a kind of test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth as claimed in claim 1, it is characterized in that: described step (5) passes through high-temperature calcination, it is calcining 20～40min at 500 DEG C～800 DEG C in treatment temperature, makes that the iron content block obtained in step (4) is fully oxidized obtains ferrum oxide.
7. a kind of test method reclaiming brown iron oxide and waste oil from steel-rolling emulsion greasy filth as claimed in claim 1, it is characterized in that: the ferrum oxide that described step (6) obtains prepares fine granularity croci by ball mill grinding, Ball-milling Time 10～20h, powder size < 1 micron.
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| CN201410770205.8A CN105753066A (en) | 2014-12-15 | 2014-12-15 | Test method for recycling iron oxide powder and waste oil from steel rolling emulsion oil sludge |
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| CN201410770205.8A CN105753066A (en) | 2014-12-15 | 2014-12-15 | Test method for recycling iron oxide powder and waste oil from steel rolling emulsion oil sludge |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016376A (en) * | 2018-01-09 | 2019-07-16 | 宝山钢铁股份有限公司 | A kind of utilization method of cold rolling Magnetic filter waste |
| CN110877957A (en) * | 2019-10-21 | 2020-03-13 | 孙灯涛 | Treatment process of emulsified oil sludge in steel mill |
| CN112479518A (en) * | 2020-11-30 | 2021-03-12 | 华东理工大学 | Comprehensive treatment process of cold-rolled aged oil sludge |
| CN114729413A (en) * | 2019-11-12 | 2022-07-08 | 斯佩拉有限公司 | Conditioned heat treatment of foil |
| CN114854985A (en) * | 2022-05-17 | 2022-08-05 | 宝武集团环境资源科技有限公司 | Method and system for cooperatively treating steel rolling oil sludge and iron-containing zinc dust sludge by rotary hearth furnace |
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| CN1102167A (en) * | 1993-10-28 | 1995-05-03 | 武汉钢铁(集团)公司 | Method for producing ferric oxide black by using steel rolling greasy filth |
| US5964045A (en) * | 1997-04-16 | 1999-10-12 | Gebruder Lodige Maschinenbau Gmbh | Method and apparatus for the purification of oil-containing and water-containing roll scale sludge |
| CN1579972A (en) * | 2003-08-01 | 2005-02-16 | 首钢总公司 | Method and equipment system for treating oil-containing iron scale for steel rolling |
| CN102899479A (en) * | 2012-10-20 | 2013-01-30 | 北京工业大学 | Pretreatment method of oil sludge obtained after neodymium-iron-boron material grinding through machine tool |
| CN203613089U (en) * | 2013-11-11 | 2014-05-28 | 河北钢铁股份有限公司邯郸分公司 | Test device for recycling waste oil from oil sludge in emulsified liquid of rolling mill |
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2014
- 2014-12-15 CN CN201410770205.8A patent/CN105753066A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1102167A (en) * | 1993-10-28 | 1995-05-03 | 武汉钢铁(集团)公司 | Method for producing ferric oxide black by using steel rolling greasy filth |
| US5964045A (en) * | 1997-04-16 | 1999-10-12 | Gebruder Lodige Maschinenbau Gmbh | Method and apparatus for the purification of oil-containing and water-containing roll scale sludge |
| CN1579972A (en) * | 2003-08-01 | 2005-02-16 | 首钢总公司 | Method and equipment system for treating oil-containing iron scale for steel rolling |
| CN102899479A (en) * | 2012-10-20 | 2013-01-30 | 北京工业大学 | Pretreatment method of oil sludge obtained after neodymium-iron-boron material grinding through machine tool |
| CN203613089U (en) * | 2013-11-11 | 2014-05-28 | 河北钢铁股份有限公司邯郸分公司 | Test device for recycling waste oil from oil sludge in emulsified liquid of rolling mill |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016376A (en) * | 2018-01-09 | 2019-07-16 | 宝山钢铁股份有限公司 | A kind of utilization method of cold rolling Magnetic filter waste |
| CN110016376B (en) * | 2018-01-09 | 2020-12-22 | 宝山钢铁股份有限公司 | Utilization method of cold rolling magnetic filtration waste |
| CN110877957A (en) * | 2019-10-21 | 2020-03-13 | 孙灯涛 | Treatment process of emulsified oil sludge in steel mill |
| CN114729413A (en) * | 2019-11-12 | 2022-07-08 | 斯佩拉有限公司 | Conditioned heat treatment of foil |
| CN112479518A (en) * | 2020-11-30 | 2021-03-12 | 华东理工大学 | Comprehensive treatment process of cold-rolled aged oil sludge |
| CN114854985A (en) * | 2022-05-17 | 2022-08-05 | 宝武集团环境资源科技有限公司 | Method and system for cooperatively treating steel rolling oil sludge and iron-containing zinc dust sludge by rotary hearth furnace |
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Application publication date: 20160713 |