CN206219411U - A kind of oily sludge pre-processing device - Google Patents
A kind of oily sludge pre-processing device Download PDFInfo
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- CN206219411U CN206219411U CN201621241240.1U CN201621241240U CN206219411U CN 206219411 U CN206219411 U CN 206219411U CN 201621241240 U CN201621241240 U CN 201621241240U CN 206219411 U CN206219411 U CN 206219411U
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- drier
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Abstract
The utility model is a kind of oily sludge pre-processing device, the equipment includes shredder, agitator tank and drier, the discharging opening of shredder is connected with the charging aperture of agitator tank, the discharging opening of agitator tank is connected with feed mechanism, feed mechanism includes drier feeding channel, drier feeding channel is connected with the charging aperture of drier, and feeding channel switch is provided with drier feeding channel；Drier has liquid-phase outlet and solid-phase outlet, liquid-phase outlet connection liquid phase conveying device, solid-phase outlet connection solid phase conveying device.The utility model equipment is a kind of simple and practical integration apparatus, installs and uses simple, dependable performance, high treating effect.
Description
Technical field
The utility model is related to the disposal of oily sludge of oil field and oil plant, belongs to oil field environment-protection technical field, including contain
A kind of functions such as greasy dirt is broken, mixing, conveying and separation of solid and liquid treatment, and in particular to the pre- place in disposal of oily sludge system
Reason equipment.
Background technology
Oily sludge is the oily solid sludge produced during oil exploitation, transport, refining and oily waste water treatment.
If oily sludge is not acted upon, environment is not only polluted, and cause the waste of resource.Current each oil field is all oily sludge
Treatment is solved as an important problem.
Due to oily sludge originate it is more complicated, the inside in addition to greasy dirt, also containing packaging bag, stone, metal with
And the debris of other different sizes etc..The purpose of disposal of oily sludge system is exactly to remove debris, isolates solid phase, water and oil,
Wherein solid phase qualified discharge, water circulation use, oil is reclaimed.Current existing disposal of oily sludge system mainly includes：In advance
Processing equipment, chemical-treating facility, solid-liquid separating equipment, oily water separating equipment and firing equipment etc..Wherein pre-processing device master
Act on be remove oily sludge in debris, and add inorganic agent make oily sludge disperse fluidisation, into next stage point
From recycling.But there is following shortcoming in existing pre-processing device：1）Bulky grain is removed not thoroughly, in pipeline
During sedimentation easily block pipeline；2）When processing packed oily sludge, in addition it is also necessary to artificial unpacking, the amount of labour is increased, dropped
Low treatment effeciency；3）Because the throwing index of vibratory sieve/rotary screen is small, the bulk materials surface oil-containing separated is more, still
So environment is polluted；4）Pipeline connection is complicated, and handling process is cumbersome.
Utility model content
The purpose of this utility model is to overcome drawbacks described above, there is provided a kind of simple and practical integrated oily sludge is located in advance
Reason equipment, installs and uses simple, dependable performance, high treating effect.The purpose of this utility model is real by the following technical programs
Existing.
A kind of oily sludge pre-processing device, including shredder, agitator tank and drier, the discharging opening of the shredder with
The charging aperture connection of agitator tank, the discharging opening of the agitator tank is connected with feed mechanism, and the feed mechanism send including drier
Material passage, the drier feeding channel is connected with the charging aperture of the drier, is provided with the drier feeding channel
Feeding channel is switched；The drier has liquid-phase outlet and solid-phase outlet, and the liquid-phase outlet connects liquid phase conveying device, institute
State solid-phase outlet connection solid phase conveying device.
Further, the feed mechanism also includes shredder feeding channel, and the shredder feeding channel tears with described
The charging aperture connection of broken machine, is provided with feeding channel switch on the shredder feeding channel.
Used as a kind of improvement project to feed mechanism, the shredder feeding channel of the feed mechanism is pushed away including shredder
Material spiral and shredder feeding screw, the drier feeding channel of feed mechanism include drier pushing spiral and drier feeding
Spiral；There are two discharging openings to connect import and the drier pusher spiral shell of shredder pushing spiral respectively for the bottom of the agitator tank
The import of rotation；Shredder pushing spiral outlet connection shredder feeding screw import, the outlet of shredder feeding screw with
The charging aperture connection of shredder, the import of the outlet connection drier feeding screw of drier pushing spiral, drier feeding spiral shell
The outlet of rotation is connected with the charging aperture of drier, and drier pushing spiral pushes away inclined-plane with counter, can be by drier pushing spiral
Interior material is counter to be shifted onto in agitator tank.
Further, the shredder pushing spiral and drier pushing spiral are horizontally installed to the bottom of agitator tank respectively
Portion；The drier feeding screw is installed obliquely, with the horizontal 25 ° ~ 35 ° angles；Shredder feeding screw is pacified obliquely
Dress, with the horizontal 35 ° ~ 45 ° angles.
Used as another improvement project to feed mechanism, the feed mechanism includes total with what agitator tank discharging opening was connected
The threeway of the outlet connection of pushing spiral and the sludge pump and sludge pump of the outlet connection of total pushing spiral and two with threeway
Shredder charging line and drier charging line that outlet is connected respectively, the outlet of the shredder charging line are torn with described
The charging aperture connection of broken machine, the outlet of the drier charging line is connected with the charging aperture of the drier；The shredder
Shredder gate valve and drier gate valve are respectively arranged with charging line and drier charging line.
Further, the discharging opening of shredder is located at the charging aperture top of agitator tank, the lower joint face of shredder discharging opening
Upper joint face with agitator tank charging aperture is concordant, so that the material of shredder discharge just falls in the charging aperture of agitator tank.
Further, agitator tank charging aperture top is provided with rinse mouth, rinse mouth direction obliquely and with charging aperture inclined-plane
It is parallel, it is easy to be flushed into the material of material mouth accumulation.
Further, stirring vane and cleaning shoe are installed, stirring vane and cleaning shoe share a transmission in agitator tank
Axle, stirring vane is located at the middle and lower part of agitator tank, and for stirring mixed material, cleaning shoe is located at the bottom of agitator tank, for inciting somebody to action
Bottoms material is scraped totally.
Further, drier feeding channel exit is provided with concentration equipment, miscellaneous for removing metal inside material
Thing.
Further, the liquid phase transmitting device includes liquid phase transfer tank and delivery pump, and the liquid-phase outlet of drier is with
Turn tank to be connected；The solid phase transmitting device is conveying worm, and conveying worm is connected with the solid-phase outlet of drier.
The beneficial effects of the utility model：
1）Integration of equipments degree is high, and compact conformation is conveniently transported and installed and used, and the use for fully meeting user will
Ask；
2）Equipped with shredder, the bulk foreign matter in oily sludge can be crushed, it is without carrying out manual sorting and packed
Oily sludge can be directly entered shredder and be crushed, and eliminate artificial unpacking, improve efficiency；
3）Equipped with drier, the oily sludge that will mix medicament carries out separation of solid and liquid, may separate out more than 0.3mm's
Particle, reduces the possibility that subsequent pipeline sedimentation is blocked；And drier separating factor reaches more than 400g, can effectively remove
The greasy dirt on solid phase particles surface, effectively reduces the oil content in solid phase；
4）Material is conveyed using conveying worm, conveying worm can be conveyed containing various to the strong adaptability of material
The material of debris；
5）Material is conveyed using sludge pump, sludge pump can convey the thing containing various debris to the strong adaptability of material
Material, and floor space is small, and overall structure is more compact；
6）Equipped with concentration equipment, for removing the metal sundries inside material, in order to avoid damage drier.
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the utility model.
Brief description of the drawings
Fig. 1 is the utility model sludge pretreatment device structure schematic diagram（Feeding screw）；
Fig. 2 is the utility model sludge pretreatment device structure schematic diagram（Delivery pump）.
Reference：1. shredder feeding screw；2. shredder；3. stirring vane；4. agitator tank；5. drier feeding spiral shell
Rotation；6. concentration equipment；7. drier；8. conveying worm；9. liquid phase transfer tank；10. delivery pump；11. drier pushing spirals；
12. cleaning shoes；13. shredder pushing spirals；14. total pushing spirals；15. shredder gate valves；16. threeways；17. drier locks
Valve；18. sludge pumps.
Specific embodiment
Embodiment 1
As shown in Figure 1, 2, a kind of oily sludge pre-processing device, including shredder 2, agitator tank 4 and drier 7, it is described
The discharging opening of shredder is connected with the charging aperture of agitator tank, and the discharging opening of the agitator tank is connected with feed mechanism, the feeding
Mechanism includes shredder feeding channel, drier feeding channel, the charging aperture of the shredder feeding channel and the shredder
Connection, the drier feeding channel is connected with the charging aperture of the drier, and the shredder feeding channel and drier send
Feeding channel switch is respectively arranged with material passage；The drier has liquid-phase outlet and solid-phase outlet, the liquid-phase outlet
Connection liquid phase conveying device, the solid-phase outlet connects solid phase conveying device.
The discharging opening of shredder 2 is located at the charging aperture top of agitator tank 4, the lower joint face and agitator tank of shredder discharging opening
The upper joint face of charging aperture is concordant, so that the material of shredder discharge just falls in the charging aperture of agitator tank.
The charging aperture top of agitator tank 4 is provided with rinse mouth, and rinse mouth direction is obliquely and parallel with charging aperture inclined-plane, is easy to
It is flushed into the material of material mouth accumulation.
Stirring vane 3 and cleaning shoe 12 are installed, stirring vane and cleaning shoe share a power transmission shaft, stir in agitator tank 4
Blade is mixed positioned at the middle and lower part of agitator tank, for stirring mixed material, cleaning shoe is located at the bottom of agitator tank, for by bottoms
Material is scraped clean.
The feeding channel exit of drier 7 is provided with concentration equipment 6, for removing the metal sundries inside material.
Liquid phase transmitting device includes liquid phase transfer tank 9 and delivery pump 10, and liquid-phase outlet and the transfer tank phase 9 of drier 7 connect
Connect；The solid phase transmitting device is conveying worm 8, and conveying worm 8 is connected with the solid-phase outlet of drier 7.
Comprised the following steps using this：
1）The water and medicament of corresponding proportioning is added to be stirred in agitator tank；
2）Start shredder pending oily sludge is added in the charging aperture of shredder, carry out break process, break
Material after broken with medicament into being mixed in agitator tank；
3）Open shredder feeding channel mixed material is sent in shredder, repeat break process, directly
Below diameter 2cm is crushed to all materials；
4）Shredder feeding channel and shredder are closed successively；
5）Start drier and drier feeding channel, the material being well mixed after being crushed in agitator tank sends into drier
Charging aperture, drier carries out separation of solid and liquid to material, and the liquid phase separated enters liquid phase conveying device and is ready for next step
Treatment, the solid phase separated enters the treatment that fixed conveying device is ready for next step.
Embodiment 2
The present embodiment is the improvement carried out on the basis of embodiment 1, part same as Example 1 in the present embodiment,
Refer to the content disclosed in embodiment 1 to be understood, the disclosure of embodiment 1 should also be as the content of the present embodiment,
Description is not repeated herein.
The shredder feeding channel of feed mechanism includes shredder pushing spiral 13 and shredder feeding screw 1, feeder
The drier feeding channel of structure includes drier pushing spiral 11 and drier feeding screw 5；The bottom of the agitator tank 4 has
Two discharging openings connect the import of shredder pushing spiral 13 and the import of drier pushing spiral 11 respectively；Shredder pusher spiral shell
The import of the outlet connection shredder feeding screw 1 of rotation 13, the outlet of shredder feeding screw 1 connects with the charging aperture of shredder 2
It is logical, the import of the outlet connection drier feeding screw 5 of drier pushing spiral 11, the outlet of drier feeding screw 11 with get rid of
The charging aperture connection of dry machine 7, drier pushing spiral 11 pushes away inclined-plane with counter, can be anti-by the material in drier pushing spiral
Shift onto in agitator tank.
Shredder pushing spiral 13 and drier pushing spiral 11 are horizontally installed to the bottom of agitator tank 4 respectively；It is described to get rid of
Dry machine feeding spiral shell 5 revolves to be installed obliquely, with the horizontal 25 ° ~ 35 ° angles；Shredder feeding screw 1 is installed obliquely, with water
Plane is into 35 ° ~ 45 ° angles.
The specific connected mode of the present embodiment as shown in Figure 1, including shredder 2, shredder feeding screw 1, cleaning shoe
12nd, stirring vane 3, shredder pushing spiral 13, liquid phase transfer tank 9, drier 7, concentration equipment 6, drier feeding screw 5,
Drier pushing spiral 11, agitator tank 4, conveying worm 8 and landwaste case.
Shredder 2 and drier 7 are separately mounted to the both sides of agitator tank 4 and liquid phase transfer tank 9.The discharging opening of shredder 2
Positioned at the charging aperture top of agitator tank 4.The lower joint face of the discharging opening of shredder 2 is basic with the upper joint face of the charging aperture of agitator tank 4
Concordantly, so that the material of the discharge of shredder 2 just falls in the charging aperture of agitator tank 4.Stirring vane is installed in the middle of agitator tank 4
3 and cleaning shoe 12, the material in tank is mixed.Stirring vane 3 and cleaning shoe 12 share a power transmission shaft.Stirring vane 3
Positioned at the middle and lower part of agitator tank, for stirring mixed material.Cleaning shoe 12 is located at the bottom of agitator tank, for bottoms material to be scraped
Totally.The bottom of agitator tank is provided with shredder pushing spiral 13 and drier pushing spiral 11, is responsible for that in-tank mixing will be stirred
Material afterwards is pushed out.
The both sides of agitator tank 4 are provided with shredder feeding screw 1 and drier feeding screw 5.Shredder feeding screw 1 enters
Mouth is connected with the outlet of shredder pushing spiral 13.Installed using oblique upper type, with the horizontal 40 ° of angles, its outlet
Positioned at the charging aperture top of shredder 2, it is easy to fall directly into material in charging aperture.The import of drier feeding screw 5 with
The outlet of drier pushing spiral 11 is connected.Installed using oblique upper type, with the horizontal 30 ° of angles, its outlet is located at
The charging aperture top of drier, is easy to fall directly into material in charging aperture.It is provided with the outlet of drier feeding screw 5
Concentration equipment 6.For removing the metal sundries inside material, in order to avoid damage drier 7.
Drier 7 is furnished with liquid phase transfer tank 9, and its liquid phase outlet is directly connected with transfer tank.Liquid phase transfer tank 9 is located at
In the middle of drier 7 and agitator tank 4.The separation of solid and liquid of drier 7 liquid phase out first enters transfer tank, then defeated by delivery pump 10
It is sent to next step treatment.It is furnished with conveying worm 8 in the bottom of drier 7.Conveying worm 8 is connected with the discharge gate of drier 7.Get rid of
The separation of solid and liquid of dry machine 7 solid phase out is transported in landwaste case by conveying worm 8, and the treatment of next step is then done again.
Working method：
The water and medicament of corresponding proportioning are added in agitator tank 4, is started stirring vane 3 and is stirred.Then start successively
Shredder 2, shredder feeding screw 1 and shredder pushing spiral 13.Oily sludge to be processed will be needed to be added to shredder 2
In charging aperture, break process is carried out.Material after broken is fallen into the charging aperture of agitator tank 4.Stirring vane 3 and cleaning shoe 12 pairs
Material and medicament in tank carry out mixed processing.Then by shredder pushing spiral 13 and shredder feeding screw 1, will mix
Material afterwards is sent in shredder 2, and break process is carried out again, until all materials are crushed to below diameter 2cm.
Shredder pushing spiral 13, shredder feeding screw 1 and shredder 2 are closed successively.Then start drier 7, get rid of
Dry machine feeding screw 5 and drier pushing spiral 11, the material feeding drier 7 being well mixed after being crushed in agitator tank 4 enter
Material mouth.Before charging aperture is entered, concentration equipment 6 removes the metal sundries inside material.Drier 7 carries out solid-liquid point to material
From the liquid phase separated enters liquid phase transfer tank 9, and being transported to next step by delivery pump 10 is processed.The solid phase separated
It is sent in landwaste case by conveying worm 8, the treatment of next step is then done again.
Embodiment 3
The present embodiment is the improvement carried out on the basis of embodiment 1, part same as Example 1 in the present embodiment,
Refer to the content disclosed in embodiment 1 to be understood, the disclosure of embodiment 1 should also be as the content of the present embodiment,
Description is not repeated herein.
Feed mechanism includes the dirt of the total pushing spiral 14 being connected with agitator tank discharging opening and total pushing spiral outlet connection
The threeway 16 of the outlet connection of dredge pump 18 and sludge pump and exported with two of threeway the shredder charging line being connected respectively and
Drier charging line, the outlet of the shredder charging line is connected with the charging aperture of the shredder, and the drier send
The outlet of pipe material is connected with the charging aperture of the drier；On the shredder charging line and drier charging line respectively
It is provided with shredder gate valve 15 and drier gate valve 17.
As shown in Figure 2, shredder 2 and drier 7 are separately mounted to the He of agitator tank 4 to the specific connected mode of the present embodiment
The both sides of liquid phase transfer tank 9.The discharging opening of shredder 2 is located at the charging aperture top of agitator tank 4.The lower company of the discharging opening of shredder 2
Junction is substantially flush with the upper joint face of the charging aperture of agitator tank 4, so that the material of the discharge of shredder 2 just falls in agitator tank 4
In charging aperture.Stirring vane 3 and cleaning shoe 12 are installed in the middle of agitator tank 4, the material in tank is mixed.Stirring vane 3
A power transmission shaft is shared with cleaning shoe 12.Stirring vane 3 is located at the middle and lower part of agitator tank, for stirring mixed material.Cleaning shoe
12 bottoms for being located at agitator tank, for bottoms material to be scraped totally.
Total pushing spiral 14 is installed in the bottom of agitator tank, is responsible for pushing out mixed material in agitator tank.Sludge pump
18 are connected with the outlet of total pushing spiral 14, by threeway 16 and conveyance conduit, shredder 2 is transported material to respectively and is got rid of
The charging aperture of dry machine 7.Concentration equipment 6 is installed in the import of drier 7, for removing the metal sundries inside material.
Drier 7 is furnished with liquid phase transfer tank 9, and its liquid phase outlet is directly connected with transfer tank.Liquid phase transfer tank 9 is located at
In the middle of drier 7 and agitator tank 4.The separation of solid and liquid of drier 7 liquid phase out first enters transfer tank, then defeated by delivery pump 10
It is sent to next step treatment.It is furnished with conveying worm 8 in the bottom of drier 7.Conveying worm 8 is connected with the discharge gate of drier 7.Get rid of
The separation of solid and liquid of dry machine 7 solid phase out is transported in landwaste case by conveying worm 8, and the treatment of next step is then done again.
Working method：
The water and medicament of corresponding proportioning are added in agitator tank 4, is started stirring vane 3 and is stirred.Then open and tear up
Machine gate valve 14, closes drier gate valve 15.Start shredder 2, sludge pump 18 and total pushing spiral 14 successively.To need to be processed
Oily sludge is added in the charging aperture of shredder 2, carries out break process.Material after broken falls into the charging aperture of agitator tank 4
It is interior.Stirring vane 3 and cleaning shoe 12 carry out mixed processing to the material and medicament in tank.Then by total pushing spiral 14 and dirt
Dredge pump 18, mixed material is sent in shredder 2, and break process is carried out again, until all materials are crushed to diameter
Below 2cm.
Then start drier 7, open drier gate valve 15, close shredder gate valve 14.Total pushing spiral 14 and sludge
The material that pump 18 is well mixed after being crushed in agitator tank 4 sends into the charging aperture of drier 7.Before charging aperture is entered, magnetic separation dress
Put the metal sundries inside 6 removing materials.Drier 7 carries out separation of solid and liquid to material, and the liquid phase separated is entered in liquid phase
Turn tank 9, being transported to next step by delivery pump 10 is processed.The solid phase separated is sent in landwaste case by conveying worm 8,
Then the treatment of next step is done again.
Claims (10)
1. a kind of oily sludge pre-processing device, it is characterised in that：Including shredder, agitator tank and drier, the shredder
Discharging opening connected with the charging aperture of agitator tank, the discharging opening of the agitator tank is connected with feed mechanism, the feed mechanism bag
Drier feeding channel is included, the drier feeding channel is connected with the charging aperture of the drier, the drier feeding is led to
Feeding channel switch is provided with road；The drier has liquid-phase outlet and solid-phase outlet, and the liquid-phase outlet connects liquid phase
Conveying device, the solid-phase outlet connects solid phase conveying device.
2. oily sludge pre-processing device according to claim 1, it is characterised in that：The feed mechanism also includes shredder
Feeding channel, the shredder feeding channel is connected with the charging aperture of the shredder, is set on the shredder feeding channel
There is feeding channel to switch.
3. oily sludge pre-processing device according to claim 2, it is characterised in that：The shredder feeding of the feed mechanism
Passage includes shredder pushing spiral and shredder feeding screw, and the drier feeding channel of feed mechanism includes drier pusher
Spiral and drier feeding screw；There are two discharging openings to connect entering for shredder pushing spiral respectively for the bottom of the agitator tank
The import of mouth and drier pushing spiral；The import of the outlet connection shredder feeding screw of shredder pushing spiral, shredder
The outlet of feeding screw is connected with the charging aperture of shredder, and the outlet of drier pushing spiral connects entering for drier feeding screw
Mouthful, the outlet of drier feeding screw connects with the charging aperture of drier, drier pushing spiral carry it is counter push away inclined-plane, can be by
Material in drier pushing spiral is counter to be shifted onto in agitator tank.
4. oily sludge pre-processing device according to claim 3, it is characterised in that：The shredder pushing spiral and drying
Machine pushing spiral is horizontally installed to the bottom of agitator tank respectively；The drier feeding screw is installed obliquely, with the horizontal
25 ° ~ 35 ° angles；Shredder feeding screw is installed obliquely, with the horizontal 35 ° ~ 45 ° angles.
5. oily sludge pre-processing device according to claim 2, it is characterised in that：The feed mechanism includes and agitator tank
The threeway of the outlet connection of total pushing spiral of discharging opening connection and the sludge pump and sludge pump of total pushing spiral outlet connection
And the shredder charging line and drier charging line being connected respectively, the shredder charging line are exported with two of threeway
Outlet connected with the charging aperture of the shredder, the charging aperture of the outlet of the drier charging line and the drier connects
It is logical；Shredder gate valve and drier gate valve are respectively arranged with the shredder charging line and drier charging line.
6. oily sludge pre-processing device according to claim 1, it is characterised in that：The discharging opening of shredder is located at agitator tank
Charging aperture top, the lower joint face of shredder discharging opening is concordant with the upper joint face of agitator tank charging aperture.
7. oily sludge pre-processing device according to claim 1, it is characterised in that：Agitator tank charging aperture top is provided with punching
Mouth is washed, rinse mouth direction is obliquely and parallel with charging aperture inclined-plane.
8. oily sludge pre-processing device according to claim 1, it is characterised in that：Be provided with agitator tank stirring vane and
Cleaning shoe, stirring vane and cleaning shoe share a power transmission shaft, and stirring vane is located at the middle and lower part of agitator tank, and cleaning shoe is located at and stirs
Mix the bottom of tank.
9. oily sludge pre-processing device according to claim 1, it is characterised in that：Install in drier feeding channel exit
There is concentration equipment.
10. oily sludge pre-processing device according to claim 1, it is characterised in that：The liquid phase transmitting device includes liquid
Phase transfer tank and delivery pump, the liquid-phase outlet of drier are connected with transfer tank；The solid phase transmitting device is conveying worm,
Conveying worm is connected with the solid-phase outlet of drier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621241240.1U CN206219411U (en) | 2016-11-21 | 2016-11-21 | A kind of oily sludge pre-processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621241240.1U CN206219411U (en) | 2016-11-21 | 2016-11-21 | A kind of oily sludge pre-processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206219411U true CN206219411U (en) | 2017-06-06 |
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ID=58789848
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621241240.1U Active CN206219411U (en) | 2016-11-21 | 2016-11-21 | A kind of oily sludge pre-processing device |
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| CN (1) | CN206219411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365396A (en) * | 2016-11-21 | 2017-02-01 | 沧州市华油飞达固控设备有限公司 | Device and method for preprocessing sludge containing oil |
-
2016
- 2016-11-21 CN CN201621241240.1U patent/CN206219411U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365396A (en) * | 2016-11-21 | 2017-02-01 | 沧州市华油飞达固控设备有限公司 | Device and method for preprocessing sludge containing oil |
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