CN109970295B - Dirty oil sludge treatment equipment and process - Google Patents
Dirty oil sludge treatment equipment and process Download PDFInfo
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- CN109970295B CN109970295B CN201910311966.XA CN201910311966A CN109970295B CN 109970295 B CN109970295 B CN 109970295B CN 201910311966 A CN201910311966 A CN 201910311966A CN 109970295 B CN109970295 B CN 109970295B
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- 239000010802 sludge Substances 0.000 title claims abstract description 284
- 238000011282 treatment Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 56
- 230000008569 process Effects 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 200
- 238000003860 storage Methods 0.000 claims abstract description 84
- 238000000926 separation method Methods 0.000 claims abstract description 79
- 239000002351 wastewater Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims abstract description 10
- 238000007865 diluting Methods 0.000 claims abstract description 9
- 238000004064 recycling Methods 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims description 35
- 230000009471 action Effects 0.000 claims description 20
- 239000012636 effector Substances 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 17
- 239000010865 sewage Substances 0.000 claims description 14
- 239000008394 flocculating agent Substances 0.000 claims description 11
- 239000010801 sewage sludge Substances 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 9
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 199
- 239000007787 solid Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002910 solid waste Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004945 emulsification Methods 0.000 abstract description 2
- 239000011499 joint compound Substances 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 188
- 238000000108 ultra-filtration Methods 0.000 description 8
- 239000010779 crude oil Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- 238000004227 thermal cracking Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000009210 therapy by ultrasound Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
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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
- 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a device and a process for treating sludge. The device comprises a dirty oil sludge storage tank, an ultrasonic actuator, a high-speed centrifugal machine and a low-speed centrifugal machine, wherein the dirty oil sludge storage tank is connected with an inlet of an ultrasonic actuator assembly through a pipeline, an outlet of the ultrasonic actuator assembly is connected with an inlet of the high-speed centrifugal machine, the high-speed centrifugal machine is provided with two outlets, a second outlet of the high-speed centrifugal machine is connected with the low-speed centrifugal machine through a pipeline, and the low-speed centrifugal machine is provided with two outlets; the process adopting the equipment comprises the steps of adding water, stirring and diluting, demulsifying by an ultrasonic wave effect device, separating oil and mud and water. The treatment technology of the sludge oil sludge is physical treatment, changes the existing treatment method of the oil-containing sludge, can recover an oil layer firstly and then separate solid and liquid of the sludge oil, realizes full separation of water, oil and sludge, and has high oil recovery rate; the flocculant is less to add, so that the generation of solid waste is reduced; in the separation process, the possibility of repeated emulsification is reduced, and repeated operation is avoided; recycling the recovered wastewater, saving energy and protecting environment.
Description
Technical Field
The invention belongs to the technical field of oil-containing sludge treatment, and particularly relates to a dirty oil sludge treatment device and a dirty oil sludge treatment process.
Background
The oil sludge is the main pollutant generated in the petroleum exploitation, transportation and storage and transportation process, wherein the oil-containing sludge in the oil refinery mainly comes from 'three-sludge', and the oil-separating tank bottom sludge generated in the oil refinery sewage treatment, floating tank scum generated in the air floatation treatment and residual activated sludge in the aerobic biochemical treatment are included. The oil-containing sludge in oil refinery has the features of great water content, complex components, great impurity content and great treatment difficulty. Generally stable emulsion systems consisting of oil-in-water, water-in-oil and solid suspensions and various treatments used in the production process, have high difficulties in separation.
The treatment method of domestic and foreign oil sludge mainly comprises a curing method, an incineration method, a hot water washing method, a solvent extraction method, an ultrasonic method, a thermal cracking method, a biological method and the like.
The hot water washing method is a treatment method mainly applied to the floor sludge at present, and the sludge is washed for a plurality of times mainly through hot alkaline water or hot water added with an active agent. The method has the advantages of simple operation, wide applicability and low cost, and has the defects of easy secondary pollution in the treatment process and not particularly high separation degree.
The incineration method is a relatively mature treatment method, and the oil sludge is incinerated in a special incinerator to thoroughly remove the oily organic matters. The method has the advantages of convenient operation, high treatment speed, complete removal of harmful substances in the oil sludge, and reutilization of heat energy generated by combustion. The disadvantage is that crude oil resources in the oil sludge are lost, the required energy consumption is large, and secondary pollution can be caused by gas discharged from combustion.
The solvent extraction method is to extract oil in the oil sludge by using an organic solvent, realize three-phase separation of oil, water and sludge, and realize recycling of an extracting agent by a distillation technology. The solvent extraction method has the advantages of thorough separation of oil sludge, high deoiling rate, effective utilization of crude oil resources, and high cost due to the large consumption of the required extractant.
The solidification method is to mix the sludge with an inert base material by a physical or chemical method, thereby agglomerating harmful substances in the sludge in solids. The method has the advantages of blocking toxic and harmful substances in the crude oil, avoiding harm to the environment, along with low treatment cost, loss of crude oil resources in the oil sludge and addition of a large amount of base materials.
The thermal cracking method is divided into a high-temperature cracking method and a low-temperature treatment method, the oil sludge is heated to the hydrocarbon cracking temperature in an anaerobic environment, and hydrocarbon substances are recovered through condensation. The thermal cracking method has the advantages of high treatment speed, obvious separation effect, recycling of part of hydrocarbon, reduction of resource waste, high cost and complex operation.
The ultrasonic method utilizes the effects of mechanical vibration and the like of ultrasonic waves to reduce the viscosity of crude oil in the oil sludge, so that the adhesion effect of the crude oil is obviously reduced, and oil, sludge and water are separated. At present, the ultrasonic treatment of oil sludge is reported at home and abroad, but the ultrasonic treatment of oil-containing sludge in oil refineries has some difficulties, and in particular, the oil-containing sludge in oil refineries is a stable emulsion system which is generally composed of oil-in-water, water-in-oil and solid suspended matters and various treating agents used in the production process, and has high separation difficulty.
Chinese patent publication No.: CN102757162B discloses an oily sludge treatment process and equipment, which belongs to an ultrasonic method, and is shown with reference to fig. 5, the equipment comprises an oily sludge treatment system, an automatic control system for controlling the oily sludge treatment system, and a power supply equipment 5-34 for supplying power to the oily sludge treatment system and the automatic control system, the oily sludge treatment system comprises a stirrer 5-12 for diluting the oily sludge with water, an ultrasonic demulsification equipment 5-14 for demulsification treatment of the oily sludge, a centrifugal machine 5-16 for solid-liquid separation treatment of the oily sludge, an ultrafiltration system 5-20 for oil-water separation treatment of the oily sewage, an oily sludge storage tank 5-9 for storing the oily sludge, a sludge tank 5-17 for storing the sludge, a centrifugal liquid storage tank 5-18 for storing the oily sewage, a concentration tank 5-21 for storing the oily sludge and a filtrate tank 5-22 for storing the water, wherein a hopper 5-11 is arranged on the stirrer 5-12; the oil sludge storage tank 5-9 is connected with an oil tank through a first oil sludge conveying pipeline and a centrifugal pump, the oil sludge storage tank 5-9 is connected with a funnel 5-11 through a second oil sludge conveying pipeline and a screw pump 5-10, the stirrer 5-12 is connected with an ultrasonic demulsification device 5-14 through a third oil sludge conveying pipeline and a first vertical pump 5-13, the ultrasonic demulsification device 5-14 is connected with a centrifugal machine 5-16 through a fourth oil sludge conveying pipeline and a second vertical pump 5-15, a sludge separation outlet of the centrifugal machine 5-16 is connected with a sludge tank 5-17 through a sludge separation conveying pipeline, an oil sewage outlet of the centrifugal machine 5-16 is connected with a centrifugal liquid storage tank 5-18 through a first oil sewage conveying pipeline and a first high-pressure pump 5-19, an oil outlet of the ultrafiltration system 5-20 is connected with a concentration tank 5-21 through an oil conveying pipeline, a water inlet of the ultrafiltration system 5-20 is connected with a water inlet of the second water tank 5-20 through a first water separation pump 22 and a water outlet of the second water tank 5-20 through a water separation pipeline and a second water inlet of the ultrafiltration tank 5-20; the automatic control system comprises a stirrer 5-12, ultrasonic demulsification equipment 5-14, a centrifugal machine 5-16, an ultrafiltration system 5-20, a centrifugal pump, a screw pump 5-10, a first inline pump 5-13, a second inline pump 5-15, a first high-pressure pump 5-19, a second high-pressure pump and a backwashing pump which are all connected with the automatic control system.
When the device is used for treating the oily sludge, the oily sludge in the oil tank is usually stored in an oily sludge storage tank through a centrifugal pump, enters a hopper above a stirrer through a screw pump, enters the stirrer through a port, and is diluted by adding water; the stirred and diluted oily sludge enters an ultrasonic demulsification device through a first linear pump, and the ultrasonic demulsification device carries out demulsification treatment on the oily sludge; the demulsified oily sludge enters a centrifugal machine through a second in-line pump, the centrifugal machine carries out solid-liquid separation treatment on the oily sludge to obtain sludge and oily sewage, the sludge is discharged into a sludge pond, and the oily sewage enters a centrifugal liquid storage tank to wait for oil-water separation; oily sewage in the centrifugal liquid storage tank enters an ultrafiltration system through a first high-pressure pump, the ultrafiltration system carries out oil-water separation treatment on the oily sewage to obtain oil and water, the oil is discharged into a concentration tank, the water is discharged into a liquid filtering tank, part of the water in the liquid filtering tank enters a funnel through a second high-pressure pump, enters a stirrer through the funnel and is used for diluting the oily sludge by the stirrer, and the other part of the water enters the ultrafiltration system through a backwash pump to carry out cleaning operation.
In the prior art, as part of the oily sludge solids are fine scum particles, the granularity is small, the density is small, and part of the scum particles are suspended in water in the process of adding water, stirring and diluting, insufficient separation is easily caused when a centrifuge is adopted for solid-liquid separation, and a large amount of solid matters, namely scum particles, are contained in oily sewage obtained by solid-liquid separation treatment; for this reason, when the demulsified oily sludge is subjected to solid-liquid separation, a large amount of additives such as an inorganic adsorbent and a part of flocculant are required to be added to the oily sludge, and the amount of the solid additive to be added is generally about 25% by weight of the oily sludge, so that the particle size and density are increased, and the scum particles are agglomerated and precipitated. According to the treatment method, a large amount of solid additives are required to be added, the amount of solid waste after separation is greatly increased, and due to the existence of oil, an inorganic adsorbent and a flocculating agent are added, so that the demulsified oily sludge is emulsified again, and the solid-liquid separation effect is poor; meanwhile, the inorganic adsorbent can adsorb part of oil into solid waste, so that the recovery rate of the oil is reduced.
Disclosure of Invention
The invention aims to solve the technical problems that: aiming at the defects, the invention provides a dirty oil sludge treatment device and a dirty oil sludge treatment process, which change the existing oily sludge treatment technology, fully separate water, oil and sludge and have high oil recovery rate; the flocculant is less to add, so that the generation of solid waste is reduced; in the separation process, the possibility of repeated emulsification is reduced, and repeated operation is avoided; recycling the recovered wastewater, saving energy and protecting environment.
The technical scheme adopted for solving the technical problems is as follows:
The dirty oil sludge treatment equipment comprises a dirty oil sludge storage tank, an ultrasonic effector assembly I, a high-speed centrifugal machine and a low-speed centrifugal machine, wherein the dirty oil sludge storage tank is connected with the ultrasonic effector assembly I through a first separation pipeline and a feeding pump I arranged on the first separation pipeline; the outlet of the ultrasonic actuator assembly I is connected with the inlet of the high-speed centrifugal machine; the high-speed centrifugal machine is provided with a first outlet of the high-speed centrifugal machine and a second outlet of the high-speed centrifugal machine; the second outlet of the high-speed centrifugal machine is connected with the low-speed centrifugal machine through a second separation pipeline and a second feeding pump arranged on the second separation pipeline; the low-speed centrifugal machine is provided with a first outlet of the low-speed centrifugal machine and a second outlet of the low-speed centrifugal machine.
Further, the device also comprises a sewage sludge pretreatment device and a primary centrifuge; the dirty oil sludge pretreatment device comprises an ultrasonic effector component II, a first pretreatment pipeline and a second pretreatment pipeline; the outlet of the dirty oil sludge storage tank is connected with the inlet of the ultrasonic effector assembly II through a first pretreatment pipeline, and is connected with the outlet of the ultrasonic effector assembly II through a second pretreatment pipeline, and is connected with the feed inlet of the dirty oil sludge storage tank, so that a dirty oil sludge pretreatment circulating device is formed; and
The sewage sludge storage tank is connected with one end of a third separation pipeline through a tee joint of an outlet of a feeding pump on the first separation pipeline, and the other end of the third separation pipeline is connected with an inlet of a primary centrifuge; the primary centrifuge is provided with a primary centrifuge first outlet and a primary centrifuge second outlet; the second outlet of the primary centrifugal machine is connected with the inlet of the ultrasonic actuator assembly I;
A sludge water tank is arranged between the second outlet of the high-speed centrifugal machine and the inlet of the low-speed centrifugal machine, and is arranged between the second outlet of the high-speed centrifugal machine and the second feeding pump;
A flocculant box and a first pipeline static mixer are also arranged between the second outlet of the high-speed centrifugal machine and the inlet of the low-speed centrifugal machine; the first pipeline static mixer is arranged between the second feeding pump and the inlet of the low-speed centrifugal machine, the outlet end of the first pipeline static mixer is connected with the inlet of the low-speed centrifugal machine, and the main inlet end of the first pipeline static mixer is connected with the outlet end of the second feeding pump; the flocculant box is connected to the auxiliary inlet end of the first pipeline static mixer through a pipeline and a flocculant delivery pump; and the second feeding pump connected with the sludge water tank is also connected with the dirty oil sludge storage tank through a reworking pipeline.
Further, the first outlet of the high-speed centrifugal machine is connected with the waste oil recovery device through a pipeline; the second outlet of the low-speed centrifugal machine is sequentially connected with a vibrating screen and a waste water tank through a pipeline; the waste water tank is characterized in that a waste water discharge water pump is arranged in an outlet pipeline of the waste water tank, the waste water discharge water pump is provided with two outlets through a tee joint, the first outlet is directly connected to a sewage pipeline, and the second outlet is connected with a hot water tank through a water return pipeline; the hot water tank is heated by a jacket of the water vapor pipeline; and
The water outlet of the hot water tank is respectively connected with a dirty oil sludge storage tank, a primary centrifugal machine, a high-speed centrifugal machine and a low-speed centrifugal machine through cleaning pipelines;
the water return pipeline can be directly connected with the hot water tank; a part of the return pipe may be shared with the rework pipe.
Further, the first pretreatment pipeline connected with the first ultrasonic applicator component also comprises a second pipeline static mixer; the first separation pipeline of the feeding pump I, which is connected with the primary centrifugal machine, further comprises a third pipeline static mixer; and a fourth pipeline static mixer is also arranged on the pipeline connected with the high-speed centrifugal machine of the ultrasonic effector assembly I.
Further, the number of the dirty oil storage tanks is at least 1; the ultrasonic actuator assembly I consists of 1 to 6 ultrasonic actuator units which are connected in series; the ultrasonic wave action device component II of the dirty oil sludge pretreatment device is formed by connecting 1 to 6 ultrasonic wave action devices in series.
A dirty oil sludge treatment process, comprising the following steps:
Step a, adding water, stirring and diluting: the method comprises the steps that dirty oil sludge is stored in a dirty oil sludge storage tank, water is added into the dirty oil sludge storage tank, stirring paddles are arranged in the dirty oil sludge storage tank for stirring, and the water and the dirty oil sludge are uniformly mixed;
step b, demulsification by an ultrasonic wave action device: pumping the uniformly mixed dirty oil and sludge liquid into an ultrasonic wave actuator assembly I through a feeding pump I, demulsifying emulsified dirty oil and cement under the action of the ultrasonic wave actuator assembly I, and layering oil and sludge water;
step c), oil separation: the demulsified oil and sludge water are connected to a high-speed centrifugal machine through a pipeline, and under the operation of the high-speed centrifugal machine, an oil layer and a sludge water layer are layered, and the oil layer is separated from a first outlet of the high-speed centrifugal machine;
Step d, mud-water separation: the sludge water layer with the oil layer removed is pumped into a low-speed centrifugal machine from a second outlet of the high-speed centrifugal machine through a second feeding pump, the low-speed centrifugal machine operates, the sludge layer and the water layer are separated, the sludge layer is separated from a first outlet of the low-speed centrifugal machine, and the water layer is separated from a second outlet of the low-speed centrifugal machine.
Further, the step a is added with water, stirred and diluted, and then the method further comprises the following steps:
step a1, pretreatment of sludge: the uniformly mixed dirty oil and mud system enters an ultrasonic actuator assembly II to demulsify, and the primary demulsifying dirty oil and mud is returned to a dirty oil and mud storage tank from the pretreatment pipeline system;
Step a2, primary solid-liquid separation: the sludge oil and water pretreated by the sludge oil and water system is pumped into the primary centrifuge through the feeding pump I, large-particle sludge is settled in the centrifuging process, solid-liquid separation is carried out, large-particle sludge is discharged from the first outlet of the primary centrifuge, and the sludge oil and water is pumped into the ultrasonic wave effector component I through the feeding pump to be treated.
Further, if the oil layer exceeding the set value remains in the water after the oil separating step in the step c, the method further comprises the following steps:
step c1, reworking sludge water: after the oil layer is separated by the high-speed centrifugal machine, the sludge water enters the sludge water tank, and if the oil content in the sludge water exceeds a set value, the sludge water is pumped into a sludge oil storage tank from the sludge water tank through a reworking pipeline.
Step c2, floating slag flocculation sedimentation: and c, after oil separation, adding a flocculating agent into the separated sludge water, and agglomerating and settling scum under the action of the flocculating agent.
Further, after the mud-water separation in the step d, the water layer can be recycled after being separated from the second outlet of the low-speed centrifugal machine, and the specific steps are as follows:
Step e: the waste water cyclic utilization, the water layer gets into the waste water tank after separating from low-speed centrifuge second export, and the waste water tank passes through the return water piping system and is connected to in the hot-water tank, the hot-water tank heats through vapor, and the hot water after the heating gets into respectively in dirty oil mud storage tank, primary centrifuge, high-speed centrifuge and the low-speed centrifuge through wasing piping system.
Further, the temperature in the dirty oil sludge storage tank is set to be 60-90 ℃.
The beneficial effects of the invention are as follows:
1. The application adopts the dirty oil sludge treatment process, changes the treatment mode of carrying out solid-liquid separation and then carrying out oil-water separation in the prior art, and after demulsification under the action of an ultrasonic wave action device, oil is firstly separated from solid water (a mixture of solid and water) through centrifugal action due to the difference between granularity and density, and then solid-water separation is carried out, so that water is separated from sludge (solid waste).
2. By adding the sewage sludge pretreatment system, the sewage sludge is firstly demulsified and circulated, so that the full demulsification of the sewage sludge is facilitated, and the subsequent continuous separation treatment of the sewage sludge is also facilitated.
3. The primary centrifugal machine is added, so that large-particle solid matters in the sewage sludge are removed firstly, the damage of the large-particle solid matters to the high-speed centrifugal machine when the high-speed centrifugal machine separates oil from an oil-water mixture firstly is reduced, and the blockage of the pipeline by the large-particle solid matters is avoided.
4. The pretreated sludge is deposited in a sludge storage tank, transported in a pipeline, and a small amount of small-particle solids are re-emulsified while large-particle solids are separated in a primary centrifuge. Therefore, the ultrasonic wave actuator assembly I is arranged in front of the inlet of the high-speed centrifugal machine, the dirty oil sludge discharged from the primary centrifugal machine is subjected to secondary demulsification and then pumped into the high-speed centrifugal machine, the high-speed centrifugal machine is favorable for separating oil from the dirty oil sludge, the separation is more sufficient, and the recovery rate of the oil is high.
5. Be provided with the shale shaker between low-speed centrifuge and wastewater tank, can filter the small amount of dross that remains in the water layer when low-speed centrifuge separates, can break the flocculating agent again and appear a large amount of dross bubbles when muddy water layer mixes, avoid the bubble to exist and appear circumstances such as overflow, improve the quality of retrieving waste water, reduce aquatic particulate matter content.
6. After oil is separated from the dirty oil sludge, a small amount of flocculating agent is added into the solid-water mixture, so that fine scum particles are easily agglomerated, the granularity is increased, and the solid-water mixture is easily separated by a low-speed centrifuge; and because the oil is separated out in the previous process, even a small amount of flocculating agent is added into the solid-water mixture, the solid-water mixture is not emulsified again.
7. The second pipeline static mixer, the fourth pipeline static mixer and the third pipeline static mixer are respectively added at the front ends of the ultrasonic effector component II, the primary centrifugal machine and the high-speed centrifugal machine, so that the sewage sludge is more uniformly mixed in the pipeline static mixer according to the self-conveying power in the conveying process, the demulsification and separation are more complete, and the treatment quality and the treatment efficiency of oil removal and sludge removal are improved.
8. The waste water circulation system is added, namely a water return pipeline is added to the waste water tank, and a cleaning pipeline is added to the outlet of the hot water tank, so that water in the system can be recycled, the environment is protected, and the cost is reduced; meanwhile, the vibrating screen arranged in front of the waste water tank further reduces the content of residual scum in the waste water, reduces the corrosion of the waste water to the pipeline, and prolongs the service life of the sludge treatment equipment.
9. Through setting up at least one dirty oil mud storage tank, every increase a dirty oil mud storage tank is equivalent to increasing one set of dirty oil mud treatment facility, and multiple sets use simultaneously, have improved the treatment effeciency of dirty oil mud.
Drawings
The foregoing and other objects, features, and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic diagram of an embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 3 is a schematic structural diagram of embodiment 3 of the present invention;
FIG. 4 is a schematic structural diagram of embodiment 4 of the present invention;
FIG. 5 is a schematic diagram of a structure in the background of the application;
Wherein: 1 is a dirty oil sludge storage tank, 11 is a storage tank outlet, 12 is a storage tank inlet, 13 is a first separation pipeline, 14 is a feed pump I, 15 is a first pretreatment pipeline, 16 is a second pretreatment pipeline, 17 is a third separation pipeline, 18 is a three-way valve, 2 is an ultrasonic applicator component I, 3 is a high-speed centrifuge, 30 is a recovery oil tank, 31 is a high-speed centrifuge first outlet, 32 is a high-speed centrifuge second outlet, 33 is a high-speed centrifuge inlet, 34 is a second separation pipeline, 35 is a feed pump II, 36 is a sludge water tank, 37 is a flocculant tank, 38 is a first pipeline static mixer, 381 is an outlet end, 383 is a main inlet end, 39 is a secondary inlet end, 39 is a reworking pipeline, 4 is a low-speed centrifuge, 41 is the inlet of a low-speed centrifuge, 42 is the first outlet of the low-speed centrifuge, 43 is the second outlet of the low-speed centrifuge, 44 is a wastewater tank, 45 is a vibrating screen, 46 is the second sludge tank, 47 is a water return pipeline, 48 is a wastewater discharge water pump, 481 is the first outlet, 482 is the second outlet, 5 is the second ultrasonic effector component, 6 is the primary centrifuge, 61 is the first outlet of the primary centrifuge, 62 is the second outlet of the primary centrifuge, 63 is the first sludge tank, 7 is the second sludge storage tank, 8 is the hot water tank, 81 is a vapor pipeline, 82 is a cleaning pipeline, 91 is a second pipeline static mixer, 92 is a third pipeline static mixer, 93 is a fourth pipeline static mixer, A is dirty oil sludge, B is water, and C is vapor.
Detailed Description
The invention will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1:
Referring to fig. 1, the device for treating the dirty oil sludge is provided with a dirty oil sludge storage tank 1, an ultrasonic effector assembly I2, a high-speed centrifugal machine 3 and a low-speed centrifugal machine 4, wherein the dirty oil sludge storage tank 1 is connected with an inlet of the ultrasonic effector assembly I2 through a first separation pipeline 13 and a feeding pump I14 arranged on the first separation pipeline 13; the outlet of the ultrasonic actuator assembly I2 is connected with the inlet 33 of the high-speed centrifugal machine; the high-speed centrifuge 3 is provided with a high-speed centrifuge first outlet 31 and a high-speed centrifuge second outlet 32; the first outlet 31 of the high-speed centrifugal machine is connected with the waste oil recovery device 30 through a pipeline; the second outlet 32 of the high-speed centrifuge is connected with the inlet 41 of the low-speed centrifuge through a second separation pipeline 34 and a second feeding pump 35 arranged on the second separation pipeline; the low-speed centrifuge 4 is provided with a first outlet 42 of the low-speed centrifuge and a second outlet 43 of the low-speed centrifuge; the second outlet 43 of the low-speed centrifuge is connected with a vibrating screen 45 and a wastewater tank 44 in sequence through pipelines.
The process for treating the sludge by adopting the sludge equipment comprises the following steps:
Step a, adding water, stirring and diluting: the dirty oil sludge enters the dirty oil sludge storage tank 1 from the dirty oil sludge storage tank inlet 12 through a pipeline, water is pumped into the dirty oil sludge storage tank 1 and then stirred by a stirring paddle arranged in the dirty oil sludge storage tank 1, and the dirty oil sludge is heated to 85 ℃ and is uniformly mixed;
step b, demulsification by an ultrasonic wave action device: the evenly mixed dirty oil and sludge liquid is pumped into an ultrasonic wave actuator assembly I2 from a storage tank outlet 11 through a feeding pump I14 arranged on a first separation pipeline 13, emulsified dirty oil and sludge are demulsified under the action of the ultrasonic wave actuator assembly I2, and the oil and the sludge are layered;
Step c), oil separation: the demulsified oil and sludge water are connected to a high-speed centrifuge 3 through a pipeline, and under the operation of the high-speed centrifuge, an oil layer and a sludge water layer are layered, and the oil layer is separated from a first outlet 31 of the high-speed centrifuge;
step d, mud-water separation: the sludge water layer with the oil layer removed is pumped into the low-speed centrifuge 4 from the second outlet 32 of the high-speed centrifuge through the second feeding pump 35, the low-speed centrifuge 4 is operated, the sludge layer and the water layer are separated, the sludge layer is separated from the first outlet 42 of the low-speed centrifuge, and the water layer is separated from the second outlet 43 of the low-speed centrifuge.
Example 2:
Referring to fig. 2, a sludge treatment apparatus has a sludge storage tank 1, an ultrasonic applicator assembly 12, a high-speed centrifuge 3 and a low-speed centrifuge 4, the ultrasonic applicator assembly 2 being composed of three ultrasonic applicator units connected in series; the device also comprises a sewage sludge pretreatment device and a primary centrifuge 6; the sludge pretreatment device comprises an ultrasonic actuator assembly II 5, a first pretreatment pipeline 15 and a second pretreatment pipeline 16; the ultrasonic wave action device assembly II 5 of the dirty oil sludge pretreatment device consists of three ultrasonic wave action devices which are connected in series; the outlet 11 of the dirty oil sludge storage tank is connected with the inlet of the ultrasonic actuator assembly II 5 through a first pretreatment pipeline 15, and is connected with the outlet of the ultrasonic actuator assembly II 5 through a second pretreatment pipeline 16 and is connected with the feed inlet 12 of the dirty oil sludge storage tank, so as to form a dirty oil sludge pretreatment circulating device; the dirty oil sludge storage tank 1 is connected with one end of a third separation pipeline 17 through a tee joint of an outlet of a first feeding pump 14 on the first separation pipeline 13, and the other end of the third separation pipeline 17 is connected with an inlet of the primary centrifugal machine 6; the primary centrifuge 6 is provided with a primary centrifuge first outlet 61 and a primary centrifuge second outlet 62; the primary centrifuge second outlet 62 is connected to the inlet of the ultrasonic applicator assembly one 2; a sludge water tank 36 is arranged between the second outlet 32 of the high-speed centrifugal machine and the inlet 41 of the low-speed centrifugal machine, and the sludge water tank 36 is arranged between the second outlet 32 of the high-speed centrifugal machine and the second 35 of the feeding pump; a flocculant box 37 and a first pipeline static mixer 38 are also arranged between the second outlet 32 of the high-speed centrifugal machine and the inlet 41 of the low-speed centrifugal machine; the first pipe static mixer 38 is disposed between the second feed pump 35 and the inlet 41 of the low-speed centrifuge, the outlet end 381 of the first pipe static mixer 38 is connected to the inlet 41 of the low-speed centrifuge, and the main inlet end 382 of the first pipe static mixer 38 is connected to the outlet end of the second feed pump 35; the flocculant tank 37 is connected to the secondary inlet end 383 of the first pipeline static mixer 38 by a pipeline and a flocculant transfer pump; the second feeding pump 35 connected with the sludge water tank 36 is also connected with the dirty oil sludge storage tank 1 through a reworking pipeline 39; the outlet pipeline of the wastewater tank 44 is provided with a wastewater discharge water pump 48, the wastewater discharge water pump 48 is provided with two outlets through a tee joint, the first outlet 481 is directly connected to the sewage pipeline, and the second outlet 482 is connected with the hot water tank 8 through the water return pipeline 47.
The return water pipe 47 may be directly connected to the hot water tank 8; a portion of the return line 47 may also be shared with the rework line 39.
The hot water tank 8 is heated by a jacket of a water vapor pipeline 81; and the water outlet of the hot water tank 8 is respectively connected with the dirty oil sludge storage tank 1, the primary centrifugal machine 6, the high-speed centrifugal machine 3 and the low-speed centrifugal machine 4 through a cleaning pipeline 82.
The process for treating the sludge by adopting the sludge equipment comprises the following steps:
Step a, adding water, stirring and diluting: the dirty oil sludge enters the dirty oil sludge storage tank 1 from the dirty oil sludge storage tank inlet 12 through a pipeline, water is added into the dirty oil sludge storage tank 1 and then stirred by a stirring paddle arranged in the dirty oil sludge storage tank 1, the temperature is heated to 75 ℃, and the water and the dirty oil sludge are uniformly mixed;
step a1, pretreatment of sludge: the evenly mixed sludge oil and mud system enters an ultrasonic actuator assembly II 5 to be demulsified, and the primary demulsified sludge oil and mud water is returned to the sludge oil and mud storage tank 1 from a second pretreatment pipeline 16;
Step a2, primary solid-liquid separation: the sludge oil and water pretreated by the sludge oil and water system is pumped into the primary centrifuge 6 through the first feed pump 14, large-particle sludge is settled in the centrifuging process, solid-liquid separation is carried out, large-particle sludge is discharged from the first outlet 61 of the primary centrifuge and enters the first sludge tank 63, and the sludge oil and water is pumped into the ultrasonic wave effector assembly 2 through the first feed pump for treatment.
Step b, demulsification by an ultrasonic wave action device: pumping the uniformly mixed dirty oil and sludge liquid into three ultrasonic actuator assemblies I2 connected in series through a feed pump, demulsifying emulsified dirty oil and cement under the action of the ultrasonic actuator assemblies I2, and layering water and oil;
Step c), oil separation: the demulsified oil and sludge water are connected to a high-speed centrifuge 3 through a pipeline, and under the operation of the high-speed centrifuge 3, an oil layer and a sludge water layer are layered, and the oil layer is separated from a first outlet 31 of the high-speed centrifuge and enters a recovery oil tank 30;
Step c1, reworking sludge water: after the oil layer is separated by the high-speed centrifuge 3, the sludge water enters a sludge water tank 36, if the oil content in the sludge water exceeds a set value, the sludge water is pumped into a sludge oil storage tank 1 from the sludge water tank 36 through a reworking pipeline 39, and the steps a1, a2, b and c are circulated; if no oil layer exists in the sludge water or the oil content is not higher than a set value, entering the next step;
Step c2, floating slag flocculation sedimentation: adding a flocculating agent into the sludge water for removing the oil layer, uniformly mixing the flocculating agent and the sludge water through a first pipeline static mixer 38, pumping into a low-speed centrifugal machine 4, and agglomerating and settling scum under the action of the flocculating agent;
step d, mud-water separation: the sludge water and flocculant mixed from the first pipe static mixer 38 is acted upon by the low speed centrifuge 4, the low speed centrifuge 4 is operated, the sludge layer and the water layer are separated, dry sludge is separated 42 from the low speed centrifuge first outlet, and the water layer is separated 43 from the low speed centrifuge second outlet.
Step e, recycling the wastewater: after mud-water separation, the water layer enters a vibrating screen 45 after being separated from a second outlet 43 of the low-speed centrifugal machine, the vibrating screen enters a waste water tank 44 after being filtered, the waste water tank 44 is connected into a hot water tank 8 through a water return pipeline 47, the hot water tank 8 is heated through water vapor, and heated hot water enters a sludge storage tank 1, a primary centrifugal machine 6, a high-speed centrifugal machine 3 and a low-speed centrifugal machine 4 respectively through a cleaning pipeline 82.
Example 3:
referring to fig. 3, on the basis of embodiment 2, in this embodiment, a second dirty oil sludge storage tank 7 is added, connecting pipelines of dirty oil sludge and dirty oil sludge storage tanks and the second dirty oil sludge storage tank are provided with three-way valves 18, a storage tank outlet 11 of the dirty oil sludge storage tank 1 and a storage tank outlet of the second dirty oil sludge storage tank 7 are respectively communicated with an ultrasonic actuator component II of the pretreatment system through pretreatment pipelines, and are connected with a primary centrifuge through a first separation pipeline, and connections among the remaining primary centrifuge 6, the first ultrasonic actuator component 2, the high-speed centrifuge 3, a sludge water tank, a flocculant tank, the low-speed centrifuge 4, a wastewater tank and the hot water tank 8 are unchanged, which is not repeated.
When the dirty oil sludge treatment equipment is used for treating the dirty oil sludge, the treatment process is as follows:
Step a: adding water, stirring and diluting, wherein the dirty oil sludge selectively enters a dirty oil sludge storage tank 1 or a dirty oil sludge storage tank II through a three-way valve of a pipeline, if the dirty oil sludge enters the dirty oil sludge storage tank 1, hot water in a hot water tank 8 enters the dirty oil sludge storage tank 1, stirring the dirty oil sludge by a stirring paddle arranged in the dirty oil sludge storage tank 1, heating the dirty oil sludge to 75 ℃, uniformly mixing the water and the dirty oil sludge, emulsifying the dirty oil cement, and introducing a water source in the hot water tank into the dirty oil sludge storage tank II to finish cleaning operation; conversely, if the dirty oil sludge enters the second dirty oil sludge storage tank 7, the hot water in the hot water tank enters the second dirty oil sludge storage tank 7 to dilute the dirty oil sludge. The addition of the dirty oil sludge storage tank is equivalent to the simultaneous use of two sets of equipment, so that the treatment efficiency of dirty oil sludge is improved;
the subsequent processing steps are unchanged, and are not described in detail.
Example 4:
as shown in fig. 4, in the embodiment 2, a second pipe static mixer 91 is further disposed on a first pretreatment pipe 15, i.e., the inlet front end of the ultrasonic actuator assembly two 5, where the first feed pump 14 is connected to the ultrasonic actuator assembly two 5; a third pipeline static mixer 92 is arranged on the third separation pipeline 17 connected with the primary centrifugal machine 6 by the first feeding pump 14, namely the front end of the inlet of the primary centrifugal machine 6; a fourth pipeline static mixer 93 is further arranged on the pipeline connected with the high-speed centrifugal machine 3 by the ultrasonic effector component I2, namely the front end of the inlet of the high-speed centrifugal machine 3. The sewage sludge is uniformly mixed in the pipeline static mixer according to the self-conveying power in the conveying process, and the mode is obviously more beneficial to improving the treatment quality and the treatment efficiency of oil removal and sludge removal. The rest is the same as the structure connection and the treatment process of the embodiment 2, and is not repeated.
In embodiments 1 to 4, valves are provided in the pipes of the respective fluids such as the sludge a, the water B, the steam C, the muddy water, etc., and the flow direction and the flow rate of the respective fluids are controlled by the opening and closing and opening angles of the valves.
By adopting any embodiment to treat the oily sludge, the following indexes can be achieved after oil separation and mud-water separation: the impurity content of the dirty oil is less than or equal to 5 percent, the oil content of the sewage is less than or equal to 500mg/L, and the solid content of the sludge is more than or equal to 25 percent, thereby realizing the recovery and the reutilization of the dirty oil.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. The utility model provides a dirty oil sludge treatment facility, has dirty oil sludge storage tank (1), ultrasonic wave actor subassembly one (2), high-speed centrifuge (3) and low-speed centrifuge (4), its characterized in that: the dirty oil sludge storage tank (1) is connected with an inlet of the ultrasonic actuator assembly I (2) through a first separation pipeline (13) and a first feeding pump (14) arranged on the first separation pipeline (13); the outlet of the ultrasonic actuator assembly I (2) is connected with the inlet (33) of the high-speed centrifugal machine; the high-speed centrifugal machine (3) is provided with a first outlet (31) of the high-speed centrifugal machine and a second outlet (32) of the high-speed centrifugal machine; the second outlet (32) of the high-speed centrifugal machine is connected with the low-speed centrifugal machine (4) through a second separation pipeline (34) and a second feeding pump (35) arranged on the second separation pipeline; the low-speed centrifuge (4) is provided with a first outlet (42) of the low-speed centrifuge and a second outlet (43) of the low-speed centrifuge;
the device also comprises a sewage sludge pretreatment device and a primary centrifuge (6); the device for pretreating the sludge comprises an ultrasonic actuator assembly II (5), a first pretreatment pipeline (15) and a second pretreatment pipeline (16); the outlet (11) of the dirty oil sludge storage tank is connected with the inlet of the ultrasonic effector assembly II (5) through a first pretreatment pipeline (15), and is connected with the outlet of the ultrasonic effector assembly II (5) through a second pretreatment pipeline (16) and is connected with the feed inlet (12) of the dirty oil sludge storage tank, so as to form a dirty oil sludge pretreatment circulating device; the dirty oil sludge storage tank (1) is connected with one end of a third separation pipeline (17) through a tee joint of an outlet of a first feeding pump (14) on the first separation pipeline (13), and the other end of the third separation pipeline (17) is connected with an inlet of the primary centrifugal machine (6); the primary centrifuge (6) is provided with a primary centrifuge first outlet (61) and a primary centrifuge second outlet (62); the second outlet (62) of the primary centrifugal machine is connected with the inlet of the ultrasonic actuator assembly I (2); a sludge water tank (36) is arranged between the second outlet (32) of the high-speed centrifugal machine and the inlet (41) of the low-speed centrifugal machine, and the sludge water tank (36) is arranged between the second outlet (32) of the high-speed centrifugal machine and the second feeding pump (35); a flocculant box (37) and a first pipeline static mixer (38) are also arranged between the second outlet (32) of the high-speed centrifugal machine and the inlet (41) of the low-speed centrifugal machine; the first pipeline static mixer (38) is arranged between the second feeding pump (35) and the inlet (41) of the low-speed centrifugal machine, the outlet end (381) of the first pipeline static mixer (38) is connected with the inlet (41) of the low-speed centrifugal machine, and the main inlet end (382) of the first pipeline static mixer (38) is connected with the outlet end of the second feeding pump (35); the flocculant box (37) is connected to the auxiliary inlet end (383) of the first pipeline static mixer (38) through a pipeline and a flocculant delivery pump; and the second feeding pump (35) connected with the sludge water tank (36) is also connected with the dirty oil sludge storage tank (1) through a reworking pipeline (39).
2. A sludge treatment facility as claimed in claim 1, wherein: the first outlet (31) of the high-speed centrifugal machine is connected with the waste oil recovery device (30) through a pipeline; the second outlet (43) of the low-speed centrifugal machine is sequentially connected with a vibrating screen (45) and a wastewater tank (44) through pipelines; a wastewater discharge water pump (48) is arranged in an outlet pipeline of the wastewater tank (44), the wastewater discharge water pump (48) is provided with two outlets through a tee joint, a first outlet (481) is directly connected to a sewage pipeline, and a second outlet (48-2) is connected with a hot water tank (8) through a water return pipeline (47); the hot water tank (8) is heated by a jacket of a water vapor pipeline (81); the water outlet of the hot water tank (8) is respectively connected with the dirty oil sludge storage tank (1), the primary centrifugal machine (6), the high-speed centrifugal machine (3) and the low-speed centrifugal machine (4) through a cleaning pipeline (82); the water return pipeline (47) is directly connected with the hot water tank (8), or a part of the water return pipeline (47) is shared with the reworking pipeline (39).
3. A sludge treatment facility as claimed in claim 1, wherein: the first pretreatment pipeline (15) connected with the first feeding pump (14) and the second ultrasonic effector component (5) is also provided with a second pipeline static mixer (91); the first feeding pump (14) is connected with the third separation pipeline (17) of the primary centrifugal machine (6) and further comprises a third pipeline static mixer (92); and a fourth pipeline static mixer (93) is also arranged on the pipeline connected with the high-speed centrifugal machine (3) by the ultrasonic effector component I (2).
4. A sludge treatment facility as claimed in claim 1, wherein: at least 1 dirty oil sludge storage tank (1) is arranged; the ultrasonic actuator assembly I (2) is formed by connecting 1 to 6 ultrasonic actuator units in series; the ultrasonic wave action device component II (5) of the dirty oil sludge pretreatment device is formed by connecting 1 to 6 ultrasonic wave action devices in series.
5. A sludge treatment process employing the sludge treatment apparatus as claimed in any one of claims 1 to 4, comprising the steps of:
Step a, adding water, stirring and diluting: the method comprises the steps that dirty oil sludge is stored in a dirty oil sludge storage tank, water is added into the dirty oil sludge storage tank (1), stirring paddles are arranged in the dirty oil sludge storage tank (1) for stirring, and the water and the dirty oil sludge are uniformly mixed;
step b, demulsification by an ultrasonic wave action device: pumping the uniformly mixed dirty oil and sludge liquid into an ultrasonic wave actuator assembly I (2) through a feeding pump I (14), demulsifying emulsified dirty oil and cement under the action of the ultrasonic wave actuator assembly I (2), and layering the oil and the dirty oil and the sludge water;
Step c), oil separation: the demulsified oil and sludge water are connected to a high-speed centrifuge (3) through a pipeline, and under the operation of the high-speed centrifuge (3), an oil layer and a sludge water layer are layered, and the oil layer is separated from a first outlet (31) of the high-speed centrifuge;
Step d, mud-water separation: pumping the sludge water layer with the oil layer removed into a low-speed centrifuge (4) from a second outlet (32) of the high-speed centrifuge through a second feeding pump (35), operating the low-speed centrifuge (4), separating the sludge layer from the water layer, separating the sludge layer from a first outlet (42) of the low-speed centrifuge, and separating the water layer from a second outlet (43) of the low-speed centrifuge;
The step a is added with water, stirred and diluted, and then the method further comprises the following steps:
step a1, pretreatment of sludge: the evenly mixed sludge oil and mud system enters an ultrasonic actuator assembly II (5) to be demulsified, and the primary demulsified sludge oil and mud water is returned to a sludge oil and mud storage tank (1) from a second pretreatment pipeline (16);
Step a2, primary solid-liquid separation: the sludge oil and water pretreated by the sludge oil and water system is pumped into the primary centrifuge (6) through the first feed pump (14), large-particle sludge is settled in the centrifuging process, solid-liquid separation is carried out, large-particle sludge is discharged from the first outlet (61) of the primary centrifuge, and the sludge oil and water is pumped into the first ultrasonic wave effector component (2) through the first feed pump (14) for treatment.
6. A sludge treatment process as claimed in claim 5, wherein said step c of separating the oil further comprises the steps of:
Step c1, reworking sludge water: after the oil layer is separated by the high-speed centrifugal machine (3), the sludge water enters a sludge water tank (36), and if the oil content in the sludge water exceeds a set value, the sludge water is pumped into a sludge oil storage tank (1) from the sludge water tank (36) through a reworking pipeline;
Step c2, floating slag flocculation sedimentation: and c, after oil separation, adding a flocculating agent into the separated sludge water, and agglomerating and settling scum under the action of the flocculating agent.
7. The process for treating sludge as claimed in claim 5, wherein after the sludge-water separation in the step d, the water layer is separated from the second outlet (43) of the low-speed centrifuge for recycling, and the specific steps are as follows:
Step e: waste water cyclic utilization, water layer get into waste water tank (44) after separating from low-speed centrifuge second export (43), waste water tank (44) are connected to in hot-water tank (8) through return water pipeline (47) system, hot-water tank (8) are heated through vapor, and the hot water after the heating gets into respectively in dirty oil mud storage tank (1), primary centrifuge (6), high-speed centrifuge (3) and low-speed centrifuge (4) through cleaning pipeline (82) system.
8. A sludge treatment process as claimed in claim 5, wherein the temperature in the sludge storage tank is set at 60 ℃ to 90 ℃.
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| CN110590090A (en) * | 2019-09-24 | 2019-12-20 | 延安万创能源科技有限公司 | Dirty oil sludge treatment equipment and treatment process |
| CN112607932A (en) * | 2020-12-07 | 2021-04-06 | 恩曼技术（北京）有限公司 | Harmless recycling treatment device and process for oil sludge |
| CN113060884B (en) * | 2021-03-25 | 2022-11-25 | 中汇金源（北京）科技发展有限公司 | Petrochemical oily sewage and oil sludge purifying and recycling system |
| CN115196845A (en) * | 2022-08-01 | 2022-10-18 | 湖南宏旺新材料科技有限公司 | Oil-sludge separation system and control method |
| CN115477459B (en) * | 2022-09-24 | 2024-06-21 | 陕西艾潽机械制造有限公司 | Fatlute processing system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251367A (en) * | 1979-01-25 | 1981-02-17 | Waste Conversion Technology, Inc. | Wastewater treatment |
| US6214236B1 (en) * | 1997-07-01 | 2001-04-10 | Robert Scalliet | Process for breaking an emulsion |
| CN101492231A (en) * | 2008-05-28 | 2009-07-29 | 罗德春 | Method for innocent treatment of bottom oil sludge, scruff and active sludge in petro-chemical industry |
| CN104140184A (en) * | 2014-04-12 | 2014-11-12 | 北京工业大学 | Treatment method for oily sludge of oil refinery |
| CN104496146A (en) * | 2014-11-21 | 2015-04-08 | 朱越 | Sludge dewatering machine |
| CN207659282U (en) * | 2017-11-29 | 2018-07-27 | 陕西欧菲德环保科技有限公司 | A kind of high frequency sound wave processing oil sludge device |
| CN108423964A (en) * | 2018-03-26 | 2018-08-21 | 甘肃新鑫能源工程有限公司 | A kind of tank bottom oil sludge minimizing treatment process |
| CN210340641U (en) * | 2019-04-18 | 2020-04-17 | 江苏连昌环保设备有限公司 | Dirty oil sludge treatment facility |
-
2019
- 2019-04-18 CN CN201910311966.XA patent/CN109970295B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251367A (en) * | 1979-01-25 | 1981-02-17 | Waste Conversion Technology, Inc. | Wastewater treatment |
| US6214236B1 (en) * | 1997-07-01 | 2001-04-10 | Robert Scalliet | Process for breaking an emulsion |
| CN101492231A (en) * | 2008-05-28 | 2009-07-29 | 罗德春 | Method for innocent treatment of bottom oil sludge, scruff and active sludge in petro-chemical industry |
| CN104140184A (en) * | 2014-04-12 | 2014-11-12 | 北京工业大学 | Treatment method for oily sludge of oil refinery |
| CN104496146A (en) * | 2014-11-21 | 2015-04-08 | 朱越 | Sludge dewatering machine |
| CN207659282U (en) * | 2017-11-29 | 2018-07-27 | 陕西欧菲德环保科技有限公司 | A kind of high frequency sound wave processing oil sludge device |
| CN108423964A (en) * | 2018-03-26 | 2018-08-21 | 甘肃新鑫能源工程有限公司 | A kind of tank bottom oil sludge minimizing treatment process |
| CN210340641U (en) * | 2019-04-18 | 2020-04-17 | 江苏连昌环保设备有限公司 | Dirty oil sludge treatment facility |
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