CN215855425U - Treatment device for heavy metal sewage - Google Patents
Treatment device for heavy metal sewage Download PDFInfo
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- CN215855425U CN215855425U CN202122168766.9U CN202122168766U CN215855425U CN 215855425 U CN215855425 U CN 215855425U CN 202122168766 U CN202122168766 U CN 202122168766U CN 215855425 U CN215855425 U CN 215855425U
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Abstract
The utility model discloses a treatment device for heavy metal sewage, and belongs to the field related to sewage treatment. A treatment device for heavy metal sewage comprises a treatment barrel, a rotating barrel, a toothed ring, a driving gear and a centrifugal filter device; the rotary cylinder is rotatably arranged in the treatment cylinder, the gear ring is fixedly connected with the outer circular surface of the rotary cylinder, the driving gear is arranged in the treatment cylinder, the driving gear is in meshing transmission with the gear ring, and the centrifugal filter device is arranged in the rotary cylinder; the centrifugal filtering device comprises a floating plate and a switching plate, the floating plate is fixedly connected with the switching plate, sewage to be filtered is arranged in the rotating cylinder, the floating plate slides up and down in the rotating cylinder through buoyancy of the sewage to be filtered, the switching plate slides up and down in the rotating cylinder along with the floating plate, and a drainage part is arranged on the side surface of the rotating cylinder; this scheme has set up centrifugal filter equipment, and when treating filterable heavy metal sewage entering to rotate a section of thick bamboo, it rotates to drive earlier to rotate a section of thick bamboo to the messenger treats filterable heavy metal sewage and has centrifugal force.
Description
Technical Field
The utility model belongs to the related field of sewage treatment, and particularly relates to a treatment device for heavy metal sewage.
Background
The heavy metal wastewater is wastewater containing heavy metals discharged in the industrial production processes of mining and metallurgy, mechanical manufacturing, chemical industry, electronics, instruments and the like. Heavy metal wastewater is one of the industrial wastewater which has the most serious environmental pollution and the most harm to human, and the water quality and the water quantity of the heavy metal wastewater are related to the production process. Heavy metals in wastewater generally cannot be decomposed and destroyed, and only can be transferred to the existing position and converted into the physical and chemical forms. The treatment method is to reform the production process at first, heavy metals with high toxicity are not used or are used less, the treatment is usually carried out by adopting a chemical precipitation method, an ion exchange method and the like in the on-site treatment of a production site, and the heavy metals in the treated water can be discharged or recycled when the heavy metals are lower than the discharge standard.
The existing heavy metal wastewater filtering devices generally adopt simple filter plates for physical filtering, the filtering effect is easy to gradually decline along with the blockage of the filter plates, and further the filtering effect is influenced, and more control elements are required to be arranged in some sewage filtering devices to control the on-off of elements in the filtering devices, so that the fault rate is easy to increase while the filtering devices are too complicated, and the use is influenced greatly.
SUMMERY OF THE UTILITY MODEL
The utility model provides a treatment device for heavy metal sewage, which is provided with a centrifugal filter device, wherein when heavy metal sewage to be filtered enters a rotating cylinder, the rotating cylinder is driven to rotate firstly, so that the heavy metal sewage to be filtered has centrifugal force, when the water level of the heavy metal sewage to be filtered in the rotating cylinder reaches a certain degree, a floating plate is pushed to move upwards through buoyancy, the heavy metal sewage to be filtered is flushed out of the rotating cylinder through filter holes, the heavy metal sewage to be filtered is primarily filtered through the filtration of a first filter plate, and the treatment device is provided with a secondary filter plate, so that the primarily filtered heavy metal sewage can be secondarily filtered.
The utility model relates to a treatment device for heavy metal sewage, which comprises a treatment barrel, a rotating barrel, a toothed ring, a driving gear and a centrifugal filter device, wherein the treatment barrel is arranged on the rotating barrel;
the rotary cylinder is rotatably arranged in the treatment cylinder, the gear ring is fixedly connected with the outer circular surface of the rotary cylinder, the driving gear is arranged in the treatment cylinder, the driving gear is in meshing transmission with the gear ring, and the centrifugal filter device is arranged in the rotary cylinder;
the centrifugal filtering device comprises a floating plate and a switching plate, the floating plate is fixedly connected with the switching plate, sewage to be filtered is arranged in the rotating cylinder, the floating plate slides up and down in the rotating cylinder through buoyancy of the sewage to be filtered, the switching plate slides up and down in the rotating cylinder along with the floating plate, a water discharging part is arranged on the side surface of the rotating cylinder, and the switching plate can seal or communicate with the water discharging part on the side surface of the rotating cylinder when sliding up and down in the rotating cylinder;
the bottom end of the rotating cylinder is provided with a conical body, the conical body is detachably connected with the rotating cylinder, and the conical body is conical;
the top end of the treatment cylinder is a water inlet end, the water inlet end extends into the rotating cylinder, and the bottom end of the treatment cylinder is a water outlet end.
As a further improvement of the utility model, a centrifugal cavity is arranged in the rotary drum, the side wall of the centrifugal cavity is provided with a plurality of filtering holes, each filtering hole is uniformly distributed at two ends of the side wall of the centrifugal cavity, a treatment cavity is arranged in the treatment drum, each filtering hole is communicated with the treatment cavity, a sliding cavity is communicated between each filtering hole at two sides, the sliding cavities at two sides are downward opened, and a centrifugal filtering device is arranged in the sliding cavities at two sides and each filtering hole.
As a further improvement of the utility model, the centrifugal filter device also comprises a plurality of first filter plates, each first filter plate is fixedly arranged in each filter hole, the first filter plate is positioned at one end of the filter hole close to the treatment cavity, two switching plates are arranged, the two switching plates are respectively connected with two sliding cavities in a sliding way, the top ends of the two switching plates are fixedly connected with the floating plate, the top ends of the two sliding cavities are respectively communicated with a floating plate sliding cavity, the floating plate sliding cavities at the two sides are communicated with the cavities, the floating plate is connected with the floating plate sliding cavities at the two sides in a sliding way, a plurality of communicating cavities are respectively communicated in the two switching plates, each communicating cavity corresponds to each filter hole, when the filter holes and the communicating cavities are positioned at the same horizontal position, the filtering holes are in a communicated state, and when the filtering holes and the communicating cavity are not positioned at the same horizontal position, the filtering holes are in a closed state.
As a further improvement of the utility model, a water inlet pipeline is fixedly arranged at the top end of the treatment cylinder, the water inlet pipeline extends downwards into the centrifugal cavity, the rotating cylinder is rotatably connected with the water inlet pipeline, an elastic ring sleeve is fixedly arranged on the outer circular surface of the water inlet pipeline, the elastic ring sleeve is made of elastic materials, the water inlet pipeline penetrates through the floating plate, the water inlet pipeline is slidably connected with the floating plate, and the water inlet pipeline is used for conveying sewage.
As a further improvement of the utility model, a power cavity is arranged in the treatment cylinder, the power cavity is positioned at the upper side of the treatment cavity, the top end of the rotating cylinder is positioned in the power cavity, the outer circular surface of the rotating cylinder is rotatably connected with the inner wall of the power cavity, a water inlet pipeline penetrates through the power cavity, the water inlet pipeline is fixedly connected with the power cavity, the upper wall of the power cavity is fixedly provided with a power motor, an output shaft at the bottom end of the power motor is fixedly provided with a gear shaft, the outer circular surface of the gear shaft is fixedly provided with a driving gear, the outer circular surface of the rotating cylinder is fixedly provided with a gear ring, the gear ring is positioned in the power cavity, and the gear ring is in meshing transmission with the driving gear.
As a further improvement of the utility model, the bottom ends of the sliding cavities on two sides are closed by the conical body, and the conical body is arranged in a small-upper-part and large-lower-part manner.
As a further improvement of the utility model, a secondary filter plate is fixedly arranged in the treatment cavity, the secondary filter plate is positioned at the lower side of the rotating cylinder, a water outlet pipeline is fixedly arranged at the bottom end of the treatment cavity, the water outlet pipeline extends downwards to the lower side of the treatment cylinder, and the water outlet pipeline is used for draining water.
Compared with the prior art, the utility model has the advantages that:
this scheme has set up centrifugal filter, when treating filterable heavy metal sewage gets into and rotates a section of thick bamboo in, drive earlier and rotate a section of thick bamboo and rotate, thereby the messenger treats filterable heavy metal sewage and has centrifugal force, and when the interior filterable heavy metal sewage water level of treating of a section of thick bamboo reachs certain degree, promote the kickboard rebound through buoyancy, and then treat filterable heavy metal sewage and wash out to rotating outside the section of thick bamboo through filtering the filtration pore, and will treat filterable heavy metal sewage first filtration through the filtration of first filter, and be equipped with the secondary filter, can carry out secondary filter with the heavy metal sewage after the first filtration.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the motion state of FIG. 1;
FIG. 3 is an enlarged view of the structure A in FIG. 1;
FIG. 4 is an enlarged view of the structure of B in FIG. 1;
fig. 5 is an enlarged schematic view of the structure C of fig. 2.
The reference numbers in the figures illustrate:
11. a treatment cylinder; 12. a treatment chamber; 13. a secondary filter plate; 14. a rotating cylinder; 15. a power cavity; 16. a toothed ring; 17. a water inlet pipe; 18. a floating plate; 19. an elastic ring sleeve; 20. a centrifugal chamber; 21. a conical body; 22. a power motor; 23. a gear shaft; 24. a driving gear; 26. a sliding cavity; 27. a floating plate sliding cavity; 28. a switch board; 29. a filtration pore; 30. a first filter plate; 31. a communicating cavity; 32. a water outlet pipeline.
Detailed Description
The first embodiment is as follows: referring to fig. 1-5, a device for treating heavy metal wastewater includes a treatment cylinder 11, a rotary cylinder 14, a gear ring 16, a driving gear 24, and a centrifugal filter;
the rotary cylinder 14 is rotatably arranged in the treatment cylinder 11, the gear ring 16 is fixedly connected with the outer circular surface of the rotary cylinder 14, the driving gear 24 is arranged in the treatment cylinder 11, the driving gear 24 is in meshing transmission with the gear ring 16, and the centrifugal filter device is arranged in the rotary cylinder 14;
the centrifugal filtering device comprises a floating plate 18 and a switching plate 28, the floating plate 18 is fixedly connected with the switching plate 28, sewage to be filtered is arranged in the rotating cylinder 14, the floating plate 18 slides up and down in the rotating cylinder 14 through buoyancy of the sewage to be filtered, the switching plate 28 slides up and down in the rotating cylinder 14 along with the floating plate 18, a drainage position is arranged on the side surface of the rotating cylinder 14, and the switching plate 28 can seal or communicate with the drainage position on the side surface of the rotating cylinder 14 when sliding up and down in the rotating cylinder 14;
the bottom end of the rotating cylinder 14 is provided with a conical body 21, the conical body 21 is detachably connected with the rotating cylinder 14, and the conical body 21 is conical;
the top end of the treatment cylinder 11 is a water inlet end, the water inlet end extends into the rotating cylinder 14, and the bottom end of the treatment cylinder 11 is a water outlet end.
The rotating drum 14 is internally provided with a centrifugal cavity 20, the side wall of the centrifugal cavity 20 is provided with a plurality of filtering holes 29, each filtering hole 29 is uniformly distributed at two ends of the side wall of the centrifugal cavity 20, the treatment drum 11 is internally provided with a treatment cavity 12, each filtering hole 29 is communicated with the treatment cavity 12, a sliding cavity 26 is communicated between each filtering hole 29 at two sides, the sliding cavities 26 at two sides are downward opened, and the centrifugal filter device is arranged in the sliding cavities 26 at two sides and each filtering hole 29.
The centrifugal filter device also comprises a plurality of first filter plates 30, wherein each first filter plate 30 is fixedly arranged in each filter hole 29, the first filter plate 30 is positioned at one end of the filter hole 29 close to the treatment cavity 12, two switch plates 28 are arranged, the two switch plates 28 are respectively in sliding connection with the two sliding cavities 26, the top ends of the two switch plates 28 are fixedly connected with the floating plate 18, the top ends of the two sliding cavities 26 are respectively communicated with a floating plate sliding cavity 27, the floating plate sliding cavities 27 at two sides are respectively communicated with the centrifugal cavity 20, the floating plate 18 is in sliding connection with the floating plate sliding cavities 27 at two sides, a plurality of communicating cavities 31 are respectively communicated in the two switch plates 28, each communicating cavity 31 corresponds to each filter hole 29, when the filter holes 29 and the communicating cavities 31 are positioned at the same horizontal position, the filter holes 29 are in a communicating state, and when the filter holes 29 and the communicating cavities 31 are not positioned at the same horizontal position, the filter holes 29 are in a closed state.
The top end of the treatment cylinder 11 is fixedly provided with a water inlet pipe 17, the water inlet pipe 17 extends downwards into the centrifugal cavity 20, the rotating cylinder 14 is rotatably connected with the water inlet pipe 17, an elastic ring sleeve 19 is fixedly arranged on the outer circular surface of the water inlet pipe 17, the elastic ring sleeve 19 is made of elastic materials, the water inlet pipe 17 penetrates through the floating plate 18, the water inlet pipe 17 is slidably connected with the floating plate 18, and the water inlet pipe 17 is used for conveying sewage.
A power cavity 15 is arranged in the treatment cylinder 11, the power cavity 15 is located on the upper side of the treatment cavity 12, the top end of the rotating cylinder 14 is located in the power cavity 15, the outer circular surface of the rotating cylinder 14 is rotationally connected with the inner wall of the power cavity 15, a water inlet pipeline 17 penetrates through the power cavity 15, the water inlet pipeline 17 is fixedly connected with the power cavity 15, a power motor 22 is fixedly arranged on the upper wall of the power cavity 15, a gear shaft 23 is fixedly arranged on an output shaft at the bottom end of the power motor 22, a driving gear 24 is fixedly arranged on the outer circular surface of the gear shaft 23, a gear ring 16 is fixedly arranged on the outer circular surface of the rotating cylinder 14, the gear ring 16 is located in the power cavity 15, and the gear ring 16 is in meshing transmission with the driving gear 24.
The conical body 21 closes the bottom ends of the sliding cavities 26 at the two sides, and the conical body 21 is arranged in a small-top and large-bottom mode.
The secondary filter plate 13 is fixedly arranged in the treatment cavity 12, the secondary filter plate 13 is positioned at the lower side of the rotating cylinder 14, the bottom end of the treatment cavity 12 is fixedly provided with a water outlet pipeline 32, the water outlet pipeline 32 extends downwards to the lower side of the treatment cylinder 11, and the water outlet pipeline 32 is used for draining water.
The floating plate 18 is positioned at the lower side of the elastic ring sleeve 19, heavy metal sewage to be treated is injected into the centrifugal cavity 20 through the water inlet pipeline 17, the centrifugal cavity 20 is in a closed state at the moment, the power motor 22 is started to drive the driving gear 24 to rotate, the rotating cylinder 14 is driven to rotate through the meshing transmission of the driving gear 24 and the toothed ring 16, the sewage in the centrifugal cavity 20 is driven to move along by the rotation of the rotating cylinder 14, the sewage in the centrifugal cavity 20 has a certain centrifugal force at the moment, the sewage is continuously injected through the water inlet pipeline 17, the water level of the sewage in the centrifugal cavity 20 rises, the floating plate 18 is pushed to move upwards through buoyancy, the floating plate 18 moves upwards and extrudes the elastic ring sleeve 19 to deform through the buoyancy, the floating plate moves to the upper side of the elastic ring sleeve 19, the communicating cavity 31 and the filtering holes 29 are positioned at the same horizontal position at the moment, the sewage in the centrifugal cavity 20 is flushed into each filtering hole 29 through the centrifugal force, and the particles in the sewage are filtered by the first filter plate 30, and the sewage is filled into the treatment chamber 12, passes through the secondary filter plate 13 for secondary filtration and is discharged outside through the water outlet pipe 32.
In the second embodiment, on the basis of the first embodiment: the floating plate 18 is supported without buoyancy and is positioned at the lower side of the elastic ring sleeve 19, heavy metal sewage to be treated is injected into the centrifugal cavity 20 through the water inlet pipeline 17, at the moment, the communicating cavity 31 and the filtering hole 29 are not positioned at the same horizontal position, so that the centrifugal cavity 20 is in a closed state, the power motor 22 is started to drive the gear shaft 23 to rotate, the driving gear 24 is driven to rotate through the rotation of the gear shaft 23, the rotating cylinder 14 is driven to rotate through the meshing transmission of the driving gear 24 and the gear ring 16, the sewage in the centrifugal cavity 20 is driven to move along with the rotation of the rotating cylinder 14, at the moment, the sewage in the centrifugal cavity 20 has certain centrifugal force, at the moment, the sewage is continuously injected through the water inlet pipeline 17, the water level of the sewage in the centrifugal cavity 20 rises, the floating plate 18 is pushed to move upwards through buoyancy, the floating plate 18 moves upwards and extrudes the elastic ring sleeve 19 to deform through the buoyancy, further move to the upper side of the elastic ring sleeve 19, at this time, because the floating plate 18 moves upwards, further drive the two side switching plates 28 to move upwards, thereby driving the communicating cavity 31 and the filtering holes 29 to be in the same horizontal position, at the moment, the sewage in the centrifugal cavity 20 is flushed into each filtering hole 29 by the centrifugal force, and the particles in the sewage are filtered by the first filter plate 30, at this time, the sewage is filled into the treatment chamber 12, is secondarily filtered by the secondary filter plate 13, is discharged outside through the water outlet pipe 32, when the sewage filtration is finished, the power motor 22 is closed, the floating plate 18 is still positioned at the upper side of the elastic ring sleeve 19, when sewage is filtered for the second time, the power motor 22 is started, the floating plate 18 rotates along with the power motor, and when the floating plate 18 is in a rotating state, the supporting force of the elastic ring sleeve 19 is overcome to drive the elastic ring sleeve 19 to deform and slide downwards to the lower side of the elastic ring sleeve 19, so that the centrifugal cavity 20 is closed after resetting is completed.
Claims (7)
1. The utility model provides a processing apparatus to heavy metal sewage which characterized in that: comprises a processing cylinder (11), a rotating cylinder (14), a gear ring (16), a driving gear (24) and a centrifugal filter device;
the rotary cylinder (14) is rotatably arranged in the treatment cylinder (11), the gear ring (16) is fixedly connected with the outer circular surface of the rotary cylinder (14), the driving gear (24) is arranged in the treatment cylinder (11), the driving gear (24) is in meshing transmission with the gear ring (16), and the centrifugal filter device is arranged in the rotary cylinder (14);
the centrifugal filtering device comprises a floating plate (18) and a switching plate (28), the floating plate (18) is fixedly connected with the switching plate (28), sewage to be filtered is arranged in the rotating cylinder (14), the floating plate (18) slides up and down in the rotating cylinder (14) through buoyancy of the sewage to be filtered, the switching plate (28) slides up and down in the rotating cylinder (14) along with the floating plate (18), a water discharging position is arranged on the side surface of the rotating cylinder (14), and the switching plate (28) can be closed or communicated with the water discharging position on the side surface of the rotating cylinder (14) when sliding up and down in the rotating cylinder (14);
the bottom end of the rotating cylinder (14) is provided with a conical body (21), the conical body (21) is detachably connected with the rotating cylinder (14), and the conical body (21) is conical;
the top end of the treatment cylinder (11) is a water inlet end, the water inlet end extends into the rotating cylinder (14), and the bottom end of the treatment cylinder (11) is a water outlet end.
2. The treatment device for heavy metal wastewater according to claim 1, wherein:
be equipped with centrifugal chamber (20) in rotary drum (14), centrifugal chamber (20) lateral wall is equipped with filtration pore (29), filtration pore (29) are equipped with a plurality ofly, every filtration pore (29) evenly distributed is in the both ends of centrifugal chamber (20) lateral wall, be equipped with treatment chamber (12) in treatment section of thick bamboo (11), every filtration pore (29) all communicate with treatment chamber (12), all communicate between every filtration pore (29) of both sides and be equipped with slip chamber (26), the equal opening in both sides slip chamber (26) is downward, centrifugal filter device locates in both sides slip chamber (26) and every filtration pore (29).
3. The treatment device for heavy metal wastewater according to claim 2, wherein: the centrifugal filter device also comprises a plurality of first filter plates (30), each first filter plate (30) is fixedly arranged in each filter hole (29), the first filter plates (30) are positioned at one ends of the filter holes (29) close to the treatment cavity (12), two switch plates (28) are arranged, the two switch plates (28) are respectively in sliding connection with the two sliding cavities (26), the top ends of the two switch plates (28) are fixedly connected with the floating plate (18), the top ends of the two sliding cavities (26) are respectively communicated with the floating plate sliding cavities (27), the floating plate sliding cavities (27) at two sides are respectively communicated with the centrifugal cavity (20), the floating plate (18) is in sliding connection with the floating plate sliding cavities (27) at two sides, the two switch plates (28) are respectively communicated with a communicating cavity (31), the communicating cavities (31) are arranged in a plurality of the communicating cavities (31), each communicating cavity (31) is respectively corresponding to each filter hole (29), when the filtering hole (29) and the communicating cavity (31) are positioned at the same horizontal position, the filtering hole (29) is in a communicating state, and when the filtering hole (29) and the communicating cavity (31) are not positioned at the same horizontal position, the filtering hole (29) is in a closed state.
4. The treatment device for heavy metal wastewater according to claim 1, wherein: a water inlet pipeline (17) is fixedly arranged at the top end of a treatment cylinder (11), the water inlet pipeline (17) extends downwards into a centrifugal cavity (20), a rotating cylinder (14) is rotatably connected with the water inlet pipeline (17), an elastic ring sleeve (19) is fixedly arranged on the outer circular surface of the water inlet pipeline (17), the elastic ring sleeve (19) is made of an elastic material, the water inlet pipeline (17) penetrates through a floating plate (18), the water inlet pipeline (17) is slidably connected with the floating plate (18), and the water inlet pipeline (17) is used for conveying sewage.
5. The treatment device for heavy metal wastewater according to claim 1, wherein: a power cavity (15) is arranged in a treatment cylinder (11), the power cavity (15) is located on the upper side of a treatment cavity (12), the top end of a rotating cylinder (14) is located in the power cavity (15), the outer circular surface of the rotating cylinder (14) is rotationally connected with the inner wall of the power cavity (15), a water inlet pipeline (17) penetrates through the power cavity (15), the water inlet pipeline (17) is fixedly connected with the power cavity (15), a power motor (22) is fixedly arranged on the upper wall of the power cavity (15), a gear shaft (23) is fixedly arranged on an output shaft at the bottom end of the power motor (22), a driving gear (24) is fixedly arranged on the outer circular surface of the gear shaft (23), a gear ring (16) is fixedly arranged on the outer circular surface of the rotating cylinder (14), the gear ring (16) is located in the power cavity (15), and the gear ring (16) is in meshing transmission with the driving gear (24).
6. The treatment device for heavy metal wastewater according to claim 1, wherein: the bottom ends of the sliding cavities (26) at the two sides are closed by the conical body (21), and the conical body (21) is arranged in a small-top and large-bottom mode.
7. The treatment device for heavy metal wastewater according to claim 1, wherein: the secondary filter plate (13) is fixedly arranged in the treatment cavity (12), the secondary filter plate (13) is positioned on the lower side of the rotating cylinder (14), the water outlet pipeline (32) is fixedly arranged at the bottom end of the treatment cavity (12), the water outlet pipeline (32) extends downwards to the lower side of the treatment cylinder (11), and the water outlet pipeline (32) is used for draining water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122168766.9U CN215855425U (en) | 2021-09-08 | 2021-09-08 | Treatment device for heavy metal sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122168766.9U CN215855425U (en) | 2021-09-08 | 2021-09-08 | Treatment device for heavy metal sewage |
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| Publication Number | Publication Date |
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| CN215855425U true CN215855425U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122168766.9U Active CN215855425U (en) | 2021-09-08 | 2021-09-08 | Treatment device for heavy metal sewage |
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| CN (1) | CN215855425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116143229A (en) * | 2022-09-09 | 2023-05-23 | 沧州信昌化工股份有限公司 | Dirty oil treatment device and process thereof |
-
2021
- 2021-09-08 CN CN202122168766.9U patent/CN215855425U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116143229A (en) * | 2022-09-09 | 2023-05-23 | 沧州信昌化工股份有限公司 | Dirty oil treatment device and process thereof |
| CN116143229B (en) * | 2022-09-09 | 2023-08-18 | 沧州信昌化工股份有限公司 | Dirty oil treatment device and process thereof |
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