CN112723698A - Harmless treatment system and treatment process for tank cleaning oil sludge - Google Patents
Harmless treatment system and treatment process for tank cleaning oil sludge Download PDFInfo
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- CN112723698A CN112723698A CN202011411363.6A CN202011411363A CN112723698A CN 112723698 A CN112723698 A CN 112723698A CN 202011411363 A CN202011411363 A CN 202011411363A CN 112723698 A CN112723698 A CN 112723698A
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- heating
- sewage
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- 239000010802 sludge Substances 0.000 title claims abstract description 47
- 238000004140 cleaning Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000003921 oil Substances 0.000 claims abstract description 90
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 239000010865 sewage Substances 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 28
- 238000005191 phase separation Methods 0.000 claims abstract description 22
- 238000000197 pyrolysis Methods 0.000 claims abstract description 20
- 238000003763 carbonization Methods 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 15
- 239000010779 crude oil Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 4
- 238000000265 homogenisation Methods 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 abstract description 9
- 235000019198 oils Nutrition 0.000 description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- -1 gravel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- 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
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
A tank cleaning oil sludge harmless treatment system comprises a tank cleaning oil sludge storage tank, a heating and homogenizing system, a heat conduction oil heating system, a dosing and homogenizing system, a three-phase separation system, a pyrolysis and carbonization system, a temporary sewage storage system, a sump oil tank and a sewage tank; an outlet of the tank cleaning oil sludge storage tank is sequentially connected with a heating and homogenizing system, a dosing and homogenizing system, a three-phase separation system and a pyrolysis and carbonization system through pipelines; the outlet of the dosing homogenizing system is connected with a three-phase separation system and is also respectively connected with a waste oil tank and a sewage tank; similarly, the outlet of the three-phase separation system is connected with a dirty oil tank and a sewage tank besides the pyrolysis carbonization system. The invention saves manpower and material resources in the treatment process of the tank cleaning oil sludge. The method not only can recover the crude oil in the tank cleaning oil sludge, but also can ensure that the treated solid slag can not cause harm to the environment. The method solves the current situations that the existing tank cleaning oil sludge is difficult to treat and does not reach the standard after treatment.
Description
Technical Field
The invention relates to a tank cleaning oil sludge harmless treatment system and a treatment process, which are mainly applied to oil field tank cleaning oil sludge harmless treatment.
Background
Tank cleaning oil sludge is mainly classified into 2 types: one is generated in the process of treating oil extraction sewage, and a small amount of crude oil sinks to the bottom of the oil removal tank due to specific gravity factors of colloid, asphaltene, heavy metal and the like in the sewage which carries silt and heavy oil, so that oil sludge which is black, fine in particles and more in oil content is formed; the second type is generated when crude oil is stored, when an oil product storage tank stores oil products, particularly crude oil, in the long-time storage process, a small amount of mechanical impurities, gravel, soil, heavy metal salts, paraffin, asphaltene and other heavy oil components in the oil products naturally settle and accumulate at the bottom of an oil tank due to specific gravity difference to form a black and thick colloidal substance layer.
The tank cleaning oil sludge is rich in organic matters, has very complex components, belongs to dangerous waste and cannot be directly discharged. If discharged, the method not only causes serious environmental pollution, but also causes a great loss of petroleum resources.
Disclosure of Invention
The invention provides a tank cleaning oil sludge harmless treatment system and a tank cleaning oil sludge harmless treatment process, which utilize the high automatic control of the system to save manpower and material resources in the tank cleaning oil sludge treatment process. The process can recover the crude oil in the tank cleaning oil sludge, and can ensure that the treated solid slag does not cause harm to the environment. The method solves the current situations that the existing tank cleaning oil sludge is difficult to treat and does not reach the standard after treatment.
The technical scheme adopted by the invention is as follows:
a tank cleaning oil sludge harmless treatment system comprises a tank cleaning oil sludge storage tank, a heating and homogenizing system, a heat conduction oil heating system, a dosing and homogenizing system, a three-phase separation system, a pyrolysis and carbonization system, a temporary sewage storage system, a sump oil tank and a sewage tank;
an outlet of the tank cleaning oil sludge storage tank is sequentially connected with a heating and homogenizing system, a dosing and homogenizing system, a three-phase separation system and a pyrolysis and carbonization system through pipelines; the outlet of the dosing homogenizing system is connected with a three-phase separation system and is also respectively connected with a waste oil tank and a sewage tank; similarly, the outlet of the three-phase separation system is connected with a dirty oil tank and a sewage tank besides the pyrolysis carbonization system.
Furthermore, the heating homogenizing system provides heat through the heat conduction oil heating system.
Further, the sewage tank is connected with a sewage temporary storage system.
Furthermore, a grating for filtering the oil sludge is arranged between the tank cleaning oil sludge storage tank and the heating homogenizing system.
A tank cleaning oil sludge harmless treatment process comprises the following steps:
the method comprises the following steps: pumping the material from the tank cleaning oil sludge storage pool into a heating homogenizing system by using a feed pump, starting the heat conduction oil heating system, and ensuring that the temperature in the heating homogenizing tank is between 60 and 65 ℃;
step two: pumping the heated solid-liquid mixture into a dosing homogenizing system by using a slurry pump, adding a medicament, and recovering the upper crude oil; starting a stirring system, and controlling the operation of a stirring shaft by a speed reducer;
step three: adjusting a liquid level control area, pumping a solid-liquid mixture in the dosing homogenization system into a three-phase separation system by using a slurry pump, separating by using the three-phase separation system, feeding the treated oil into a sump oil tank, feeding sewage into the sump oil tank, and conveying solid residues to a storage yard;
step four: and (3) treating sundries generated in the treatment process by using a pyrolysis carbonization system, recovering condensed gas, secondarily combusting non-condensed gas, recovering residual oil, and conveying solid residues to a designated place for making bricks or paving a well site.
Further, the solid-liquid volume ratio in the dosing homogenizing system is 1: 3 to 5.
The invention has the beneficial effects that:
the system of the invention can ensure that the material treatment achieves the expected effect and can also ensure automatic operation. The advantages are that:
1. the high self-control performance greatly reduces the working intensity of the laboratory staff. Therefore, normal operation of the system and normal operation of production can be ensured;
2. the harmless treatment system can ensure that the solid slag reaches the expected standard;
3. oil-water separation is carried out at normal temperature, and the crude oil is recovered.
Drawings
FIG. 1 is a system and process flow diagram of the present invention.
Detailed Description
As shown in fig. 1, a tank cleaning oil sludge innocent treatment system comprises a tank cleaning oil sludge storage pool, a heating homogenizing system (the tank cleaning oil sludge is simply filtered through a grating, a heat-conducting oil boiler is started to heat the oil sludge to 60 ℃, a subsequent process treatment is facilitated after stirring and homogenizing, a slurry pump is used for guiding a dosing homogenizing system), a heat-conducting oil heating system (the heated heat-conducting oil is conveyed to a part needing heating treatment through a pipeline), a dosing homogenizing system (a treatment system is dosed, the solid-liquid ratio is adjusted in the homogenizing system to meet the use requirement of a subsequent centrifuge), a three-phase separation system (oil, water and sludge in the homogenizing system are subjected to secondary separation, the separated oil enters a crude oil tank, sewage enters a sewage tank, solid slag is conveyed to a temporary storage yard), and a pyrolysis carbonization system (large particles of impurities separated from the tank cleaning oil sludge and solid slag which do not reach the standard after solid-liquid, is treated harmlessly by a pyrolysis device. The raw materials can be directly conveyed into the pyrolysis equipment through a feeding machine to carry out pyrolysis treatment in an anaerobic state. After the materials are subjected to high-temperature pyrolysis reaction, three main products, namely oil gas, non-condensable combustible gas and solid slag, are mainly formed. The mixed gas of condensable oil gas and non-condensable combustible gas enters the condenser from the gas separation bag, under the condensation action of condensed water, recoverable oil gas is changed into a liquid oil-water mixture and enters the oil storage system, the non-condensable combustible gas enters the combustion system after passing through the two-stage water seal, the heat required by the heating system is supplemented through the combustion of the combustion system, and the tail gas is treated by the treatment system and then is discharged up to the standard. Conveying the solid slag out of the system when the temperature of the pyrolysis equipment is reduced to below 50 ℃, curing the solid slag on site, and then handing the solid slag by Party A), a temporary sewage storage system, a sump oil tank and a sewage tank;
an outlet of the tank cleaning oil sludge storage tank is sequentially connected with a heating and homogenizing system, a dosing and homogenizing system, a three-phase separation system and a pyrolysis and carbonization system through pipelines; the outlet of the dosing homogenizing system is connected with a three-phase separation system and is also respectively connected with a waste oil tank and a sewage tank; similarly, the outlet of the three-phase separation system is connected with a sewage tank and a sewage tank respectively besides the pyrolysis carbonization system, and the sewage tank is connected with a sewage temporary storage system.
The heating homogenizing system provides heat through the heat conduction oil heating system. A grating for filtering the oil sludge is arranged between the tank cleaning oil sludge storage tank and the heating homogenizing system.
A tank cleaning oil sludge harmless treatment process comprises the following steps:
the method comprises the following steps: pumping the material from the tank cleaning oil sludge storage pool into a heating homogenizing system by using a feed pump, starting the heat conduction oil heating system, and ensuring that the temperature in the heating homogenizing tank is between 60 and 65 ℃;
step two: utilize the sediment stuff pump to throw into the solid-liquid mixture after heating with the medicine homogeneity system in, add the medicament, adjust solid-liquid volume ratio to 1: 3-5, recovering the crude oil at the upper layer; starting a stirring system, and controlling the operation of a stirring shaft by a speed reducer;
step three: adjusting a liquid level control area, pumping a solid-liquid mixture in the dosing homogenization system into a three-phase separation system by using a slurry pump, separating by using the three-phase separation system, feeding the treated oil into a sump oil tank, feeding sewage into the sump oil tank, and conveying solid residues to a storage yard;
step four: and (3) treating sundries generated in the treatment process by using a pyrolysis carbonization system, recovering condensed gas, secondarily combusting non-condensed gas, recovering residual oil, and conveying solid residues to a designated place for making bricks or paving a well site.
Claims (6)
1. A tank cleaning oil sludge harmless treatment system is characterized by comprising a tank cleaning oil sludge storage tank, a heating and homogenizing system, a heat conduction oil heating system, a dosing and homogenizing system, a three-phase separation system, a pyrolysis and carbonization system, a temporary sewage storage system, a sump oil tank and a sewage tank;
an outlet of the tank cleaning oil sludge storage tank is sequentially connected with a heating and homogenizing system, a dosing and homogenizing system, a three-phase separation system and a pyrolysis and carbonization system through pipelines; the outlet of the dosing homogenizing system is connected with a three-phase separation system and is also respectively connected with a waste oil tank and a sewage tank; similarly, the outlet of the three-phase separation system is connected with a dirty oil tank and a sewage tank besides the pyrolysis carbonization system.
2. The tank cleaning sludge harmless treatment system according to claim 1, wherein the heating homogenizing system supplies heat through a heat conduction oil heating system.
3. The harmless treatment system of the tank-cleaning oil sludge of claim 1, wherein the sewage tank is connected with a temporary sewage storage system.
4. The innocent treatment system of sludge from clear tank of claim 1, wherein a grid for filtering sludge is arranged between the sludge storage tank and the heating homogenization system.
5. A tank cleaning oil sludge harmless treatment process is characterized by comprising the following steps:
the method comprises the following steps: pumping the material from the tank cleaning oil sludge storage pool into a heating homogenizing system by using a feed pump, starting the heat conduction oil heating system, and ensuring that the temperature in the heating homogenizing tank is between 60 and 65 ℃;
step two: pumping the heated solid-liquid mixture into a dosing homogenizing system by using a slurry pump, adding a medicament, and recovering the upper crude oil; starting a stirring system, and controlling the operation of a stirring shaft by a speed reducer;
step three: adjusting a liquid level control area, pumping a solid-liquid mixture in the dosing homogenization system into a three-phase separation system by using a slurry pump, separating by using the three-phase separation system, feeding the treated oil into a sump oil tank, feeding sewage into the sump oil tank, and conveying solid residues to a storage yard;
step four: and (3) treating sundries generated in the treatment process by using a pyrolysis carbonization system, recovering condensed gas, secondarily combusting non-condensed gas, recovering residual oil, and conveying solid residues to a designated place for making bricks or paving a well site.
6. The harmless treatment process of the tank cleaning oil sludge according to claim 5, wherein the solid-liquid volume ratio in the chemical-adding homogenizing system is 1: 3 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411363.6A CN112723698A (en) | 2020-12-04 | 2020-12-04 | Harmless treatment system and treatment process for tank cleaning oil sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411363.6A CN112723698A (en) | 2020-12-04 | 2020-12-04 | Harmless treatment system and treatment process for tank cleaning oil sludge |
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| Publication Number | Publication Date |
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| CN112723698A true CN112723698A (en) | 2021-04-30 |
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| CN202011411363.6A Pending CN112723698A (en) | 2020-12-04 | 2020-12-04 | Harmless treatment system and treatment process for tank cleaning oil sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113264656A (en) * | 2021-07-02 | 2021-08-17 | 沈阳环境科学研究院 | Device and method for classifying and collecting oily sludge |
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| CN209602346U (en) * | 2018-11-23 | 2019-11-08 | 南阳南油科贸有限公司 | A kind of oil sludge and sand minimizing processing unit |
| CN110606633A (en) * | 2019-09-12 | 2019-12-24 | 广西博世科环保科技股份有限公司 | Oily sludge recycling and reducing treatment method and treatment system |
| CN111762994A (en) * | 2020-06-12 | 2020-10-13 | 北京爱普瑞特科技有限公司 | Oil sludge pyrolysis and liquid-solid gas reduction harmless treatment equipment |
-
2020
- 2020-12-04 CN CN202011411363.6A patent/CN112723698A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007260484A (en) * | 2006-03-27 | 2007-10-11 | Nippon Steel Corp | Treatment method of oil-containing sludge |
| CN207552149U (en) * | 2017-11-10 | 2018-06-29 | 陕西欧菲德环保科技有限公司 | A kind of oil sludge handles recycling system |
| CN109931046A (en) * | 2017-12-15 | 2019-06-25 | 高玉玲 | A kind of Downhole jetting device of petroleum production system |
| CN209602346U (en) * | 2018-11-23 | 2019-11-08 | 南阳南油科贸有限公司 | A kind of oil sludge and sand minimizing processing unit |
| CN110240369A (en) * | 2019-06-06 | 2019-09-17 | 中海油天津化工研究设计院有限公司 | A kind of pyrolysis of polymer-containing oil sludge-extraction cycle recycling treatment process method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113264656A (en) * | 2021-07-02 | 2021-08-17 | 沈阳环境科学研究院 | Device and method for classifying and collecting oily sludge |
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Application publication date: 20210430 |