CN108483852A - A kind of efficient combination method oily sludge cleaning system - Google Patents
A kind of efficient combination method oily sludge cleaning system Download PDFInfo
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- CN108483852A CN108483852A CN201810344694.9A CN201810344694A CN108483852A CN 108483852 A CN108483852 A CN 108483852A CN 201810344694 A CN201810344694 A CN 201810344694A CN 108483852 A CN108483852 A CN 108483852A
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of efficient combination method oily sludge cleaning systems, including modifying device, mechanical separation device, ozone auxiliary cleaner, oily-water seperating equipment, device for separating mud and water and cleaning water recycling device, wherein：Modifying device is connect with mechanical separation device；Mechanical separation device is connect with ozone auxiliary cleaner and oily-water seperating equipment respectively；Ozone auxiliary cleaner is connect with device for separating mud and water；Cleaning water recycling device is connect with ozone auxiliary cleaner, device for separating mud and water and modifying device respectively, to complete combined method oily sludge cleaning system process.It can realize oil, mud, water three phase separation, reduce the separation residence time, after separation water be pumped into cleaning water recycling device system circulation use, mud carries out recycling stacking, oil is recycled, it is at low cost, skid, treatment effeciency is high, and process cycle is short, economic resources location is reasonable, meets the requirement of sustainable development.
Description
Technical field
The present invention relates to the efficient combination methods that a kind for the treatment of technology of oily sludge more particularly to a kind of oily sludge clean
Oily sludge cleaning system.
Background technology
Effective disposition of the greasy filth generated in petroleum industry has received more and more attention, and oil field mud is national
It is classified as dangerous solid waste (HW08).Current study show that can all be generated in oil exploitation, the defeated and refining process of collection a large amount of
Greasy filth.Oily sludge usually has the characteristics that oil content is high, viscosity is big, particle is thin, difficult dehydration, and wherein has a certain amount of
Pathogen, heavy metal and radionuclide etc. are difficult to poisonous and harmful substance of degrading, and have the effects that carcinogenic, teratogenesis, mutagenesis.
If handled not in time, not only there is very big harm to ecological environment, cause stock number expense, there are security risks, and can be serious
Injure human life and health.
In the prior art, the treatment technology of oily sludge mainly has two kinds of Physical and chemical method, wherein quenched-machinery is de-
There is place during disposal of oily sludge in the single treatments methods such as water law, chemical cleaning method, bioreactor method, supercritical ultrasonics technology
It is long to manage the period, medicament high selectivity, of high cost, ejected wash water need after desalination, flocculation sediment could reuse the problems such as.Part foreign enterprise of state
Industry is increased processing unit and processing is set simultaneously using comprehensive use processing oily sludge although improving treatment effect
It is standby, processing cost is increased, process complexity is not easy to control.
Invention content
Based on the problems of prior art, the object of the present invention is to provide a kind of at low cost, skid, treatment effeciencies
Efficient combination method oily sludge cleaning system high, process cycle is short.
The purpose of the present invention is what is be achieved through the following technical solutions：
The efficient combination method oily sludge cleaning system of the present invention, including modifying device, mechanical separation device, ozone auxiliary
Cleaning device, oily-water seperating equipment, device for separating mud and water and cleaning water recycling device, wherein：
The modifying device is connect with mechanical separation device, the mechanical separation device respectively with ozone auxiliary cleaner
It is connected with oily-water seperating equipment；
The ozone auxiliary cleaner is connect with device for separating mud and water, and the cleaning water recycling device is auxiliary with ozone respectively
Cleaning device, device for separating mud and water is helped to be connected with modifying device.
As seen from the above technical solution provided by the invention, oily sludge cleaning provided in an embodiment of the present invention system
System, by the way that mechanical separation device, ozone auxiliary cleaner and oily-water seperating equipment, device for separating mud and water, ejected wash water time is arranged
Coordinated with device, can realize oil, mud, water three phase separation, reduces the separation residence time, water is pumped into cleaning water recycling device after separation
System circulation uses, mud carries out recycling stacking, oil is recycled, and the system cost is low, skid, and treatment effeciency is high, place
The reason period is short, and economic resources location is reasonable, realizes changing waste into resources, meets the requirement of sustainable development.
Description of the drawings
Fig. 1 is the structural schematic diagram of efficient combination method oily sludge cleaning system provided in an embodiment of the present invention.
Specific implementation mode
With reference to the particular content of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
Belong to protection scope of the present invention.
The content not being described in detail in the embodiment of the present invention belongs to the prior art well known to professional and technical personnel in the field.
The efficient combination method oily sludge cleaning system of the present invention, preferable specific implementation mode are：
Including modifying device, mechanical separation device, ozone auxiliary cleaner, oily-water seperating equipment, device for separating mud and water
With cleaning water recycling device, wherein：
The modifying device is connect with mechanical separation device, the mechanical separation device respectively with ozone auxiliary cleaner
It is connected with oily-water seperating equipment；
The ozone auxiliary cleaner is connect with device for separating mud and water, and the cleaning water recycling device is auxiliary with ozone respectively
Cleaning device, device for separating mud and water is helped to be connected with modifying device.
The modifying device include oily sludge intake line, first flowmeter, grid, single-screw (single screw) pump, second flowmeter,
Heating and stirring tank, first liquid level gauge, the first thermometer, steam input pipe, second temperature meter, the first electric valve, third flow
Meter, the second electric valve, steam output circuit, wherein：
The oily sludge intake line is connect by first flowmeter with grid；
The grid is connect by oily sludge intake line with oily sludge input port；
The grid is connect by sediment flow behavior pipeline with silt sedimentation device；
The grid is connect by single-screw (single screw) pump with heating and stirring tank；
The second temperature meter, the first electric valve and third flowmeter are respectively provided at steam input pipe road；
The heating and stirring tank is equipped with first liquid level gauge and the first thermometer；
The heating and stirring tank is connect by steam input pipe with vapor inlet port；
The heating and stirring tank is connect by third electric valve with pipeline pump；
The heating and stirring tank is connect by steam output circuit with equipment for steam treatment.
The mechanical separation device include first pipe pump), the 4th flowmeter, compound hydrocyclone, second pipe
Pump, wherein：
The first pipe pump is connect by the 4th flowmeter with compound hydrocyclone；
The compound hydrocyclone is pumped by second pipe and is connect with air supporting cleaning device；
The compound hydrocyclone is connect with oily-water seperating equipment.
The air supporting cleaning device includes air supporting purge tank, pressure gauge, gas bleeder valve, third thermometer, second liquid level gauge, oxygen
Air pipe, third electric valve, ozone generator, the 4th electric valve, steam output circuit, the 6th electric valve, wherein：
The ozone auxiliary purge tank is equipped with pressure gauge, gas bleeder valve, third thermometer, second liquid level gauge；
The ozone generator is connect by oxygen pipeline with air supporting purge tank；
The third electric valve is located on oxygen pipeline；
The ozone auxiliary purge tank is connect with steam input pipe；
The ozone auxiliary purge tank is connect by the 4th electric valve with oily-water seperating equipment；
The ozone auxiliary purge tank is connect by cleaning water lines with cleaning water recycling device；
The ozone auxiliary purge tank is connect by steam output circuit with equipment for steam treatment；
The ozone auxiliary purge tank is connect by the 6th electric valve with device for separating mud and water.
The oily-water seperating equipment includes the horizontal tank, third liquid level gauge, pipeline road, type petroleum crude recovery device,
In：
The horizontal tank is connect by pipeline road with type petroleum crude recovery device；
The horizontal tank is equipped with third liquid level gauge；
The horizontal tank is connect by cleaning water lines with air supporting purge tank.
The device for separating mud and water includes the centrifugal dehydrator, elevator pump, sediment flow behavior pipeline, silt sedimentation device,
Wherein：
The centrifugal dehydrator is connect by sediment flow behavior pipeline with silt sedimentation device；
The centrifugal dehydrator is connect by elevator pump with reuse water tank；
The centrifugal dehydrator is connect by tap water pipe line with originally water recycling device.
The cleaning water recycling device includes reuse water tank, cleans water lines, the 5th electric valve, wherein：
The reuse water tank is equipped with dispensing hole；
The reuse water tank inputs tap water by cleaning water lines；
The reuse water tank is connect by the 5th electric valve with heating and stirring tank.
In above-mentioned oily sludge cleaning system, oily sludge 41 connects grid 9, single spiral shell by oily sludge intake line 7
11 connection heating and stirring tank 13 of bar pump, while steam 42 connects heating and stirring tank 13, heating stirring by steam input pipe 16
Tank 13 connects equipment for steam treatment 50 by steam output circuit 41, and oily sludge tune is carried out by grid 9, heating and stirring tank 13
Matter works；Modifying device 1 is by 21 connection mechanical separation device 2 of first pipe pump, by compound hydrocyclone 23 to containing
Greasy dirt progress is mechanically decoupled, and mechanical separation device 2 is separately connected ozone auxiliary cleaner 3, oily-water seperating equipment 4；Grease
Separator 4 connects type petroleum crude recovery device 49, while connecting ozone auxiliary cleaner 3；Ozone generator 36 passes through oxygen hose
Road 34 connects ozone and purge tank 29, steam input pipe 16, oxygen pipeline 34 is assisted to access ozone auxiliary 29 work of purge tank simultaneously
Make, assists purge tank 29 to carry out oily sludge cleaning by ozone, ozone auxiliary cleaner 3 is separately connected oily-water seperating equipment
4, device for separating mud and water 5, cleaning water recycling device 6, equipment for steam treatment 50；Device for separating mud and water 5 is separately connected silt sedimentation
Device 51 and cleaning water recycling device 6；It cleans water recycling device 6 and connects heating and stirring tank 13, the reuse of water in realization system.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Embodiment one
As shown in Figure 1, the efficient combination method oily sludge cleaning system of the present embodiment, including：Modifying device 1, machinery point
From device 2, ozone auxiliary cleaner 3, oily-water seperating equipment 4, device for separating mud and water 5 and cleaning water recycling device 6；Containing greasy dirt
Mud 41 connects grid 9 by oily sludge intake line 7, and single-screw (single screw) pump 11 connects heating and stirring tank 13, while steam 42 passes through
Steam input pipe 16 connects heating and stirring tank 13, and heating and stirring tank 13 connects equipment for steam treatment by steam output circuit 41
50, the quenched work of oily sludge is carried out by grid 9, heating and stirring tank 13；Modifying device 1 passes through 21 connection machine of first pipe pump
Tool separator 2, mechanically decoupled to oily sludge progress by compound hydrocyclone 23, mechanical separation device 2 connects respectively
Connect ozone auxiliary cleaner 3, oily-water seperating equipment 4；Oily-water seperating equipment 4 connects type petroleum crude recovery device 49, while connecting smelly
Oxygen auxiliary cleaner 3；Ozone generator 36 connects ozone by oxygen pipeline 34 and assists purge tank 29, steam input pipe
16, oxygen pipeline 34 accesses the work of ozone clean tank 29 simultaneously, carries out oily sludge cleaning by ozone clean tank 29, ozone is auxiliary
Cleaning device 3 is helped to be separately connected oily-water seperating equipment 4, device for separating mud and water 5, cleaning water recycling device 6, equipment for steam treatment
50；Device for separating mud and water 5 is separately connected silt sedimentation device 51 and cleaning water recycling device 6；The connection of water recycling device 6 is cleaned to add
Thermal agitation tank 13, the reuse of water in realization system.
The modifying device 1 includes：Oily sludge intake line 7, first flowmeter 8, grid 9, single-screw (single screw) pump 11,
Two flowmeters 12, heating and stirring tank 13, first liquid level gauge 14, the first thermometer 15, steam input pipe 16, second temperature meter
17, the first electric valve 18, steam output circuit 41.Modifying device 1 connects mechanical separation device 2 by the second electric valve 20, contains
Greasy dirt enters grid 9 (first flowmeter 8 controls oily sludge flow) by oily sludge intake line 7, and oily sludge exists
Primary dcreening operation is carried out in grid 9, big grain size impurity enters silt sedimentation device 51 by sediment flow behavior pipeline 10, is discharged through grid 9
Oily sludge is entered by single-screw (single screw) pump 11 in heating and stirring tank 13 (first liquid level gauge 14, the first thermometer 15 monitor), simultaneously
Steam (monitoring of second temperature meter 17) will be wherein passed through and ejected wash water progress oily sludge stirring is quenched.
The mechanical separation device 2 includes：First pipe pump the 21, the 4th flowmeter 22, compound hydrocyclone 23,
Second pipe pump 28.Oily sludge after conditioned device 1 is entered by first pipe pump 21 in compound hydrocyclone 23
(the 4th flowmeter 22 controls oily sludge flow), oily-water seperating equipment 4 is delivered to by mechanically decoupled by oil water mixture, will
Oily sludge with a small amount of water enters ozone auxiliary cleaner 3 by second pipe pump 28.
The ozone auxiliary cleaner 3 includes：Ozone assists purge tank 29, pressure gauge 30, relief valve 31, third temperature
Degree meter 32, second liquid level gauge 33, oxygen pipeline 34, third electric valve 35, ozone generator 36, the 4th electric valve 37, steam are defeated
Go out pipeline 41, the 6th electric valve 42.Ozone is transported to ozone by oxygen channel 34 through ozone generator 36 and assists purge tank 29
In, Strong oxdiative occurs and reacts progress greasy filth separation, steam, which is passed through ozone auxiliary purge tank 29, supplements pressure, after detaching respectively
Oil water mixture be passed through in oily-water seperating equipment 4, mud mixture is passed through in device for separating mud and water 5 and is handled, tank internal pressure
Steam is exported by steam output circuit 41 after strong stability.
The oily-water seperating equipment 4 includes：Horizontal tank 25, third liquid level gauge 26, pipeline road 27, crude oil recovery dress
Set 49.Mechanical separation device 2, ozone auxiliary cleaner 3 detach after mud mixture each lead into horizontal tank 25 into
Row water-oil separating, the oil after separation are delivered to type petroleum crude recovery device 49 by pipeline road 27, and it is auxiliary that the water after separation enters ozone
It helps in cleaning device 3 and utilizes again.
The device for separating mud and water 5 includes：Centrifugal dehydrator 43, elevator pump 44, sediment flow behavior pipeline 10, silt sedimentation
Device 51.Mud mixture after being chemically reacted in ozone auxiliary cleaner 3 enters centrifugal dehydrator 43 and is divided
From silt particle enters silt sedimentation device 51 by sediment flow behavior pipeline 10, and water enters reuse water tank system by elevator pump 44
System recycles.
The cleaning water recycling device 6 includes：Reuse water tank 38, cleaning water lines 39, the 5th electric valve 40.Ozone is auxiliary
The water helped after being detached in cleaning device 3 and device for separating mud and water 5 enters reuse water tank 38, reuse water tank by cleaning water lines 39
38 setting dispensing holes, carry out flocculation treatment to recycle-water first and ejected wash water are delivered in system again, tap water enters recycle-water
Case 38 supplements water level, and finally water is delivered in heating and stirring tank 13, the recycling of water in whole system is realized, to complete
Combined method oily sludge cleaning system process.
There are two processes for the cleaning system of the present invention.
Oily sludge is pumped into mechanical separation device 2 by modifying device 1 and is detached for the first time, it is quenched after contain greasy dirt
Mud enters in compound hydrocyclone 23, and under the influence of centrifugal force, the particulate matter or heavy liquid of weight form concentrate
Body is expelled to ozone auxiliary cleaner 3.Lighter fluid (oil water mixture) is separated and discharged to oily-water seperating equipment 4.
Oily sludge is detached again after entering ozone auxiliary cleaner 3, and the oxidation of purge tank 29 is assisted in ozone
The organic moiety in oily sludge is by ozone oxidation Cheng Shui and carbon dioxide in the process.Ozone is sent by oxygen channel 34
To 29 bottom of ozone auxiliary purge tank, microbubble, process of the microbubble in rising are given out by corundum ceramic micro-hole aerator
Middle ozone will be substantially dissolved in greasy filth.Ozone assists purge tank 29 to be furnished with the relief valve 31 of exhaust emissions, ensures extra smelly
Oxygen is not detained in tank body.Mud is mainly separated from water out using the density contrast of Jiang Shui and mud by separation phase, is conveyed respectively
To centrifugal dehydrator 43, reuse water tank 38.
Due to using the technology described above, the present invention has the following advantages and effects：
(1) present invention designs novel combined hydrocyclone, and straight panel is installed additional on the outside of the hollow shaft of quiet hydrocyclone
Formula blade rotatory plays acceleration to liquid stream and leads rotation, enhances centrifugal force, and compound hydrocyclone 23 carries out oily sludge
First separation can directly recycle the light fluid in greasy filth, and the oil content after reduction processing in greasy filth, reduce subsequent processing
Load.
(2) ozone auxiliary cleaner 3 in present system is added bubble, passes through strong oxygen in conventional chemical purge tank
It is de- steady rapidly to change the suspension emulsion system for making to stablize in oily sludge, successfully realizes oil, mud, water three phase separation, reduces separation
Residence time.
(3) equipment in present system is used for the transformation of existing cleaning, improves the equipment scope of application.It will be compound
Formula hydrocyclone 23 replaces the pre-processing devices such as the drum centrifuge in existing processing system；Also can increase in existing purge tank
If aeration element, to improve separative efficiency.
(4) technological process of present system is simple, and using skid-mounted type equipment, device structure is simple, and operating cost is low.
(5) after oily sludge separation of the present invention, recycling can be separately recovered in oil, water, mud, realize changing waste into resources, meet
The requirement of sustainable development.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (7)
1. a kind of efficient combination method oily sludge cleaning system, which is characterized in that including modifying device (1), mechanical separation device
(2), ozone auxiliary cleaner (3), oily-water seperating equipment (4), device for separating mud and water (5) and cleaning water recycling device (6),
In：
The modifying device (1) connect with mechanical separation device (2), and the mechanical separation device (2) is clear with ozone auxiliary respectively
Cleaning device (3) and oily-water seperating equipment (5) connection；
The ozone auxiliary cleaner (3) connect with device for separating mud and water (5), the cleaning water recycling device (6) respectively with
Ozone auxiliary cleaner (3), device for separating mud and water (5) and modifying device (1) connection.
2. efficient combination method oily sludge cleaning system according to claim 1, which is characterized in that the modifying device
(1) include oily sludge intake line (7), first flowmeter (8), grid (9), single-screw (single screw) pump (11), second flowmeter (12),
Heating and stirring tank (13), first liquid level gauge (14), the first thermometer (15), steam input pipe (16), second temperature meter (17),
First electric valve (18), third flowmeter (19), the second electric valve (20), steam output circuit (41), wherein：
The oily sludge intake line (7) is connect by first flowmeter (8) with grid (9)；
The grid (9) is connect by oily sludge intake line (7) with oily sludge input port (45)；
The grid (9) is connect by sediment flow behavior pipeline (10) with silt sedimentation device (51)；
The grid (9) is connect by single-screw (single screw) pump (11) with heating and stirring tank (13)；
The second temperature meter (17), the first electric valve (18) and third flowmeter (19) are respectively provided at steam input pipe (16)
On；
The heating and stirring tank (13) is equipped with first liquid level gauge (14) and the first thermometer (15)；
The heating and stirring tank (13) is connect by steam input pipe (16) with vapor inlet port (46)；
The heating and stirring tank (13) is connect by third electric valve (20) with pipeline pump (21)；
The heating and stirring tank (14) is connect by steam output circuit (41) with equipment for steam treatment (50).
3. efficient combination method oily sludge cleaning system according to claim 1 or 2, which is characterized in that the machinery point
Include first pipe pump (21), the 4th flowmeter (22), compound hydrocyclone (23), second pipe pump from device (2)
(28), wherein：
The first pipe pump (21) is connect by the 4th flowmeter (22) with compound hydrocyclone (23)；
The compound hydrocyclone (23) is connect by second pipe pump (28) with air supporting cleaning device (3)；
The compound hydrocyclone (23) connect with oily-water seperating equipment (5).
4. efficient combination method oily sludge cleaning system according to claim 1 or 2, which is characterized in that the air supporting is clear
Cleaning device (3) includes air supporting purge tank (29), pressure gauge (30), gas bleeder valve (31), third thermometer (32), second liquid level gauge
(33), oxygen pipeline (34), third electric valve (35), ozone generator (36), the 4th electric valve (37), steam output circuit
(41), the 6th electric valve (42), wherein：
The ozone auxiliary purge tank (29) is equipped with pressure gauge (30), gas bleeder valve (31), third thermometer (32), second liquid level gauge
(33)；
The ozone generator (36) is connect by oxygen pipeline (34) with air supporting purge tank (29)；
The third electric valve (35) is located on oxygen pipeline (34)；
The ozone auxiliary purge tank (29) connect with steam input pipe (16)；
The ozone auxiliary purge tank (29) is connect by the 4th electric valve (37) with oily-water seperating equipment (4)；
The ozone auxiliary purge tank (29) is connect by cleaning water lines (39) with cleaning water recycling device (6)；
The ozone auxiliary purge tank (29) is connect by steam output circuit (41) with equipment for steam treatment (50)；
The ozone auxiliary purge tank (29) is connect by the 6th electric valve (42) with device for separating mud and water (5).
5. efficient combination method oily sludge cleaning system according to claim 1 or 2, which is characterized in that the grease point
Include the horizontal tank (25), third liquid level gauge (26), pipeline road (27), type petroleum crude recovery device (49) from device (4),
In：
The horizontal tank (25) is connect by pipeline road (27) with type petroleum crude recovery device (49)；
The horizontal tank (25) is equipped with third liquid level gauge (26)；
The horizontal tank (25) is connect by cleaning water lines (39) with air supporting purge tank (29).
6. efficient combination method oily sludge cleaning system according to claim 1 or 2, which is characterized in that the muddy water point
Include the centrifugal dehydrator (43), elevator pump (44), sediment flow behavior pipeline (10), silt sedimentation device (51) from device (5),
Wherein：
The centrifugal dehydrator (43) is connect by sediment flow behavior pipeline (10) with silt sedimentation device (51)；
The centrifugal dehydrator (43) is connect by elevator pump (44) with reuse water tank；
The centrifugal dehydrator (43) is connect by tap water pipe line (39) with originally water recycling device (6).
7. efficient combination method oily sludge cleaning system according to claim 1 or 2, which is characterized in that the ejected wash water
Reclamation set (6) includes reuse water tank (38), cleans water lines (39), the 5th electric valve (40), wherein：
The reuse water tank (38) is equipped with dispensing hole；
The reuse water tank (38) inputs tap water by cleaning water lines (39)；
The reuse water tank (38) is connect by the 5th electric valve (40) with heating and stirring tank (13).
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| CN201810344694.9A CN108483852A (en) | 2018-04-17 | 2018-04-17 | A kind of efficient combination method oily sludge cleaning system |
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| CN201810344694.9A CN108483852A (en) | 2018-04-17 | 2018-04-17 | A kind of efficient combination method oily sludge cleaning system |
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