CN211245662U - Petroleum processing sludge and sewage treatment device - Google Patents
Petroleum processing sludge and sewage treatment device Download PDFInfo
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- CN211245662U CN211245662U CN201921469989.5U CN201921469989U CN211245662U CN 211245662 U CN211245662 U CN 211245662U CN 201921469989 U CN201921469989 U CN 201921469989U CN 211245662 U CN211245662 U CN 211245662U
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Abstract
The utility model discloses a petroleum processing sludge sewage treatment device, which comprises a plate-type filter press body, wherein the plate-type filter press body is provided with a frame which is arranged at the front and the back at intervals; a scraping treatment device is arranged between the frames which are arranged at intervals in the front and the back; the scraping treatment device comprises a first chute plate fixedly connected to the front side of the rack, and a second chute plate which is flush with the first chute plate is fixedly connected to the rear side of the rack; and an air cylinder assembly is connected between the first chute plate and the second chute plate in a sliding manner, and scrapes materials downwards through a scraper assembly. Adopt above-mentioned device part to scrape material part and scrape material efficient, scrape the material abundant and operating personnel need not closely contact mud material, reduced the harm of the foul smell of mud material to operating personnel.
Description
Technical Field
The utility model relates to a petroleum processing field especially relates to a petroleum processing mud sewage treatment plant.
Background
In the petroleum processing process, a large amount of industrial sewage and sludge sewage can be generated, and the industrial sludge sewage contains a large amount of organic matters and is directly discharged to cause serious environmental pollution.
Therefore, in the prior art, a recycling manner is adopted to treat the industrial sludge and sewage generated in the petroleum processing process, for example, flocculation and filter pressing are carried out to obtain sludge, and the sludge is subjected to high-temperature calcination in a subsequent carbonization furnace to prepare a recyclable activated carbon material.
The filter-pressing treatment of sludge sewage is one of the main modes for conventional treatment of the sludge sewage in petrochemical enterprises at present, and the adopted equipment is a plate-type filter press disclosed by the prior art, and solid matters in the sludge sewage are intercepted by the plate-type filter-pressing mode, such as sludge.
However, the sewage sludge in petrochemical enterprises contains a large amount of organic matters, so that the viscosity of the sludge is extremely high, after filter pressing, although the moisture in the sludge is partially removed, the viscosity of the sludge is still high, the sludge is easily adhered to filter cloth of a filter frame of the filter press, and effective blanking cannot be realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a petroleum processing sludge sewage treatment plant.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
a petroleum processing sludge sewage treatment device comprises a plate type filter press body, wherein the plate type filter press body is provided with a frame which is arranged at the front and the back at intervals;
a scraping treatment device is arranged between the frames which are arranged at intervals in the front and the back;
the scraping treatment device comprises a first chute plate fixedly connected to the front side of the rack, and a second chute plate which is flush with the first chute plate is fixedly connected to the rear side of the rack;
an air cylinder assembly is connected between the first sliding chute plate and the second sliding chute plate in a sliding manner, the air cylinder assembly comprises a first air cylinder connected in the first sliding chute plate in a sliding manner, and a second air cylinder matched with the first air cylinder is connected in the second sliding chute plate in a sliding manner;
the top of a piston rod of the first air cylinder is fixedly connected with a first end block, the top of a piston rod of the second air cylinder is fixedly connected with a second end block, and a scraper assembly is connected between the first end block and the second end block;
the scraper assembly comprises a cutter bar, wherein the cutter bar is provided with a top surface, a bottom surface, a right side surface and a left side surface;
the top surface of the cutter bar is fixedly connected with a first scraper knife, and the right side surface of the cutter bar is fixedly connected with a plurality of second scraper knives;
the left side surface of the cutter bar is fixedly connected with a plurality of third scraper knives, and the bottom surface of the cutter bar is fixedly connected with a fourth scraper knife;
the front side wall and the rear side wall of the cutter bar are rotationally connected to the corresponding first end block and the second end block through rotating shafts;
the scraping treatment device further comprises a driving assembly, and the driving assembly is used for driving the air cylinder assembly to slide left and right between the first chute plate and the second chute plate.
Preferably, the longitudinal section of the first scraper knife is trapezoidal;
the longitudinal section of the fourth scraper knife is rectangular;
the second scraper knife is wedge-shaped, and the blade part of the second scraper knife faces right;
the cutting edge of the third scraper knife faces to the left, and a plurality of knife teeth are fixedly connected with the free end of the third scraper knife.
Preferably, one end of the rotating shaft connected with the front side wall of the cutter bar is provided with four threaded holes, and the four threaded holes and the threaded holes are respectively flush with the top surface, the bottom surface, the right side surface and the left side surface of the cutter bar;
one end of the rotating shaft connected with the front side wall of the cutter bar is positioned in a first end block, a locking bolt is connected to the first end block in a threaded mode, and the locking bolt is in threaded connection with a threaded hole;
the rotating shaft is connected with the rear side wall of the cutter bar, and four threaded holes are formed in the rotating shaft and are respectively flush with the top surface, the bottom surface, the right side surface and the left side surface of the cutter bar;
one end of the rotating shaft connected with the rear side wall of the cutter bar is positioned in the second end block, a locking bolt is connected to the second end block in a threaded mode, and the locking bolt is in threaded connection with a threaded hole.
Preferably, the rear side wall of the first end block and the front side wall of the second end block are respectively provided with a rotary hole corresponding to the rotary shaft;
the rotating shafts are rotatably connected in the corresponding rotating holes, and the locking bolts are in threaded connection with the tops of the corresponding first end block and the second end block;
the bottom of the locking bolt penetrates through the corresponding first end block and the second end block downwards, and the bottom of the locking bolt is screwed in the threaded hole of the rotating shaft.
Preferably, the bottoms of the first cylinder and the second cylinder are both fixedly connected with sliding blocks, and the driving assembly comprises brackets respectively connected with the sliding blocks at the bottoms of the first cylinder and the second cylinder;
the bracket comprises a front end part and a rear end part, and the left end of the front end part is fixedly connected to the right side wall of the first cylinder bottom sliding block;
the left end of the rear end part is fixedly connected to the right side wall of the sliding block at the bottom of the second cylinder;
the right ends of the front end part and the rear end part are connected through a beam part;
the central part of crossbeam portion is equipped with the lead screw slider, the lead screw slider spiro union has the lead screw, lead screw connection has lead screw motor.
Preferably, the bottoms of the first cylinder and the second cylinder are fixedly connected with end discs, and the end discs are fixedly connected to the tops of the corresponding sliding blocks.
Preferably, the right sides of the front end part and the rear end part of the bracket are respectively sleeved with a sliding sleeve block, and the sliding sleeve blocks are sleeved with the corresponding front end part and the rear end part;
the sliding sleeve blocks are fixedly connected to the right end of the corresponding front side rack and the right end of the corresponding rear side rack in an inclined mode through connecting rods.
Preferably, the longitudinal cross-sectional shape of the front end and the rear end of the bracket is square;
the sliding sleeve is internally provided with a square sliding hole, and the front end part and the rear end part of the support are slidably connected in the sliding holes in the corresponding sliding sleeve.
Preferably, the screw motor is connected with a motor bracket.
Compared with the prior art, the utility model has the following advantages:
firstly, the cylinder assembly moves to the position of filter frame filter cloth of a plate filter press body through a lead screw motor, a lead screw slide block, a first chute plate and a second chute plate to automatically scrape materials, so that the defects of insufficient manual scraping and large pungent smell of bearing sludge materials are avoided;
secondly, different scrapers extend into the filter frame to scrape materials through the first cylinder, the second cylinder, the first end block, the second end block, the first scraper, the second scraper, the third scraper and the fourth scraper;
and finally, the scraper bar is adjustable in position to realize that the first scraper knife, the second scraper knife, the third scraper knife and the fourth scraper knife can be switched to scrape materials, so that flexible scraping is realized.
Adopt above-mentioned device part to scrape material part and scrape material efficient, scrape the material abundant and operating personnel need not closely contact mud material, reduced the harm of the foul smell of mud material to operating personnel.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram in an embodiment of the present invention;
fig. 3 is a top view of the embodiment of the present invention shown in fig. 1;
fig. 4 is a schematic structural diagram of another view angle in fig. 1 according to the embodiment of the present invention;
FIG. 5 is a schematic structural view of a doctor assembly in an embodiment of the invention;
fig. 6 is a schematic structural view of a third blade according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-6, a petroleum processing sludge sewage treatment device comprises a plate filter press body 1, wherein the plate filter press body 1 is a conventional plate filter press disclosed in the prior art, the main structure of the device comprises a frame 11 arranged at intervals at the front and rear parts of the plate filter press body 1, a filter press frame is assembled on the frame 11, and materials are filtered through filter cloth on the filter press frame.
The technical staff in the field can learn through consulting the technical manual or technical dictionary the utility model discloses a specific structure and theory of operation of plate filter press body 1, the utility model discloses carry out following improvement to current plate filter press:
be equipped with between the frame 11 that sets up in the front, back interval and scrape material processing apparatus 2, scrape the material through scraping material processing apparatus 2 to the mud material of adhesion on the filter-pressing frame filter cloth behind the filter-pressing, avoid the unable unloading of mud adhesion filter cloth.
The specific structure of the scraping treatment device 2 is as follows:
the scraping treatment device 2 comprises a first chute plate 21 fixedly connected on the front side frame 11, and a second chute plate 22 which is flush with the first chute plate 21 is fixedly connected on the rear side frame 11;
the top of the first chute plate 21 and the second chute plate 22 are both provided with chutes.
A cylinder assembly 23 is connected between the first chute plate 21 and the second chute plate 22 in a sliding mode, and the cylinder assembly 23 is connected in the chute in a sliding mode.
The specific structure of the cylinder assembly 23 is as follows:
the cylinder assembly 23 comprises a first cylinder 231 which is slidably connected in the first chute plate 21, and a second cylinder 232 which is matched with the first cylinder 231 is slidably connected in the second chute plate 22;
the top of the piston rod (piston rod facing upwards) of the first cylinder 231 is fixedly connected with a first end block 2411, the top of the piston rod of the second cylinder 232 is fixedly connected with a second end block 2412 (the shape of the first end block 2411 and the second end block 2412 is a cube), and a scraper assembly 24 is connected between the first end block 2411 and the second end block 2412.
The air cylinder drives the scraper component 24 to scrape materials on the filter cloth of the filter frame.
The specific construction of doctor assembly 24 is as follows:
the scraper assembly 24 includes a knife bar 241, and the knife bar 241 is spaced above the filter frame in the filter press body.
The holder 241 (rectangular in cross section) has a top surface, a bottom surface, a right side surface, and a left side surface.
The top surface of the cutter bar 241 is fixedly connected with a first scraper knife C1, and the right side surface of the cutter bar 241 is fixedly connected with a plurality of second scraper knives C2;
the left side surface of the cutter bar 241 is fixedly connected with a plurality of third scrapers C3, and the bottom surface of the cutter bar 241 is fixedly connected with a fourth scraper C4.
The first blade C1, the second blade C2, the third blade C3 and the fourth blade C4 are all fixedly connected with the blade bar 241 in a welding manner, and the free ends of the blades are the positions of the blades.
The first blade C1, the second blade C2, the third blade C3, and the fourth blade C4 are different in shape and type, and specifically include the following:
the longitudinal section of the first scraper knife C1 is trapezoidal, and the longitudinal section of the fourth scraper knife C4 is rectangular; the second scraper knife C2 is wedge-shaped, and the edge of the second scraper knife C2 faces to the right; the cutting edge of the third scraper knife C3 faces to the left, and a plurality of knife teeth C31 are fixedly connected with the free end of the third scraper knife C3 (the cross section of the C31 is triangular, and the spine part faces to the left).
The front and rear side walls of the cutter bar 241 are rotatably connected to the corresponding first end block 2411 and second end block 2412 through a rotating shaft 2413.
The first blade C1, the second blade C2, the third blade C3 and the fourth blade C4 on different surfaces of the blade bar 241 are switched by rotating the blade bar 241 through the rotating shaft 2413, and the blade bar 241 is locked after switching, which is specifically as follows:
one end of the rotating shaft 2413 connected with the front side wall of the cutter bar 241 is provided with four threaded holes 24131, and the four threaded holes 24131 are respectively flush with the top surface, the bottom surface, the right side surface and the left side surface of the cutter bar 241;
one end of the rotating shaft 2413 connected to the front side wall of the tool bar 241 is located inside the first end block 2411 (a rotating hole corresponding to the rotating shaft 2413 is formed in the rear side wall of the first end block 2411), a locking bolt d is connected to the top of the first end block 2411 through a thread, and the locking bolt d penetrates through the first end block 2411 into the rotating hole and then is screwed into the threaded hole 24131, so that the rotating shaft 2413 at the position is locked.
Similarly, the rotating shaft 2413 on the rear side wall of the connecting cutter bar 241 is provided with four threaded holes 24131, and the four threaded holes 24131 at the position are respectively flush with the top surface, the bottom surface, the right side surface and the left side surface of the cutter bar 241;
one end of the rotating shaft 2413 at the position is located in the second end block 2412 (a rotating hole corresponding to the rotating shaft 2413 is formed in the front side wall of the second end block 2412), the top of the second end block 2412 is in threaded connection with a locking bolt d, the locking bolt d is in threaded connection with the threaded hole 24131, the locking bolt d penetrates through the first end block 2411 and is in threaded connection with the threaded hole 24131 in the rotating hole, and the rotating shaft 2413 at the position is locked.
The scraping treatment device 2 further comprises a driving assembly 25, and the driving assembly 25 is used for driving the cylinder assembly 23 to slide between the first sliding chute plate 21 and the second sliding chute plate 22 left and right (the plate filter press body 1 is provided with a plurality of filter press frames).
Specifically, the bottoms of the first cylinder 231 and the second cylinder 232 are fixedly connected with end discs a, and each end disc a is fixedly connected to the top of one sliding block B in a threaded connection mode. The sliding blocks B are respectively located in the sliding grooves of the first sliding groove plate 21 and the second sliding groove plate 22 to slide.
The driving assembly 25 includes two brackets 252 connected to the bottom of the first cylinder 231 and the second cylinder 232, and the two sliders B are located in the inner sliding grooves of the first sliding groove plate 21 and the second sliding groove plate 22 and slide in the inner sliding grooves.
Therefore, the corresponding bracket 252 includes a front end portion and a rear end portion, and the left end of the front end portion of the bracket 252 is fixedly connected to the right sidewall of the slider B connected to the bottom of the first cylinder 231;
similarly, the left end of the upper rear end of the bracket 252 is fixedly connected to the right side wall of the slider B connected to the bottom of the second cylinder 232;
the right ends of the front and rear ends of the holder 252 are connected by a beam. The entire stent 252 is thus C-shaped with the opening facing to the left.
The central part of crossbeam portion fixed connection lead screw slider 2511, lead screw slider 2511 spiro union has lead screw 251 (set up the screw hole on the lead screw slider 2511, and screw hole threaded connection lead screw 251), and lead screw 251 is connected with lead screw motor 253. In a conventional manner, a motor bracket (not shown) is mounted on the bottom of the lead screw motor 253 to ensure that the lead screw 251 is in a horizontal state.
In order to increase the movement stability of the support 252, sliding blocks 2521 are respectively sleeved on the right sides of the front end and the rear end of the support 252, and the sliding blocks 2521 are sleeved on the front end and the rear end of the corresponding support 252.
The bottom of the sliding sleeve block 2521 is fixedly connected to the right end of the front frame 11 and the right end of the rear frame 11 via a connecting rod 25211.
The longitudinal cross-sectional shapes of the front end and the rear end of the holder 252 are square; a square sliding hole is formed in the sliding sleeve block 2521, and the front end and the rear end of the bracket 252 are slidably connected in the sliding holes in the corresponding sliding sleeve block 2521.
The working principle mode is as follows:
firstly, sewage sludge is subjected to filter pressing through the plate type filter press body 1, sludge materials after filter pressing are adhered to filter frame filter cloth of the plate type filter press body 1, at the moment, the screw motor 253 is driven, the screw motor 253 drives the screw 251 to rotate, and the screw 251 is in threaded connection with the screw slider 2511, so that the sewage sludge is filtered through the plate type filter press body 1. Under the driving force of the screw thread, the cylinder component (the slide block B connected to the bottoms of the first cylinder 231 and the second cylinder 232 slides in the top chutes of the corresponding first chute plate 21 and the second chute plate 22) moves to the filter frame filter cloth of the plate filter press body 1, at this time, the first cylinder 231 and the second cylinder 232 are opened at the same time, the first cylinder 231 and the second cylinder 232 drive the piston rod downwards, at this time, the first end block 2411 and the second end block 2412 drive the scraper assembly 24 downwards, that is, the cutter bar 241 moves downwards, and any one of the first scraper C1, the second scraper C2, the third scraper C3 and the fourth scraper C4 extends into the filter frame to scrape the material during the downward movement of the cutter bar 241.
According to different viscosities of the sludge adhered to the filter-pressed sludge and different shoveling difficulty degrees of the sludge, the sludge is shoveled by the first shovel blade C1, the second shovel blade C2, the third shovel blade C3 and the fourth shovel blade C4 which are different.
Specifically, the cutter bar 241 is driven to move to the topmost position, the locking bolt d is unscrewed, and the cutter bar 241is rotated by any one of 90 degrees, 180 degrees and 270 degrees to realize switching, if the material is difficult to scrape, the wedge-shaped second scraper C2 is adopted, the material area is large, and when the material is easy to remove, the fourth scraper C4 with the rectangular longitudinal section is adopted.
After the direction of the cutter bar 241 is switched, the locking bolt d is fastened into the rotating shaft 2413 again to lock the cutter bar 241.
After scraping at this position, the driving screw 251 moves to the filter cloth of the next filter frame for scraping in the above manner.
The device has the advantages of component design:
firstly, the air cylinder assembly 23 moves to the filter frame filter cloth position of the plate type filter press body 1 through the screw rod motor 253, the screw rod sliding block 2511, the first sliding chute plate 21 and the second sliding chute plate 22 to automatically scrape materials, so that the defects of insufficient manual scraping and large pungent odor of sludge materials are avoided;
secondly, different scrapers extend into the filter frame to scrape materials through the first cylinder 231, the second cylinder 232, the first end block 2411, the second end block 2412, the first scraper C1, the second scraper C2, the third scraper C3 and the fourth scraper C4 of the cutter bar 241;
finally, the position of the cutter bar 241 is adjustable, so that the first scraper knife C1, the second scraper knife C2, the third scraper knife C3 and the fourth scraper knife C4 can be switched to scrape materials, and flexible scraping is realized.
Adopt above-mentioned device part to scrape material part and scrape material efficient, scrape the material abundant and operating personnel need not closely contact mud material, reduced the harm of the foul smell of mud material to operating personnel.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The petroleum processing sludge and sewage treatment device is characterized by comprising a plate type filter press body, wherein the plate type filter press body is provided with a frame which is arranged at a front and a rear interval;
a scraping treatment device is arranged between the frames which are arranged at intervals in the front and the back;
the scraping treatment device comprises a first chute plate fixedly connected to the front side of the rack, and a second chute plate which is flush with the first chute plate is fixedly connected to the rear side of the rack;
an air cylinder assembly is connected between the first sliding chute plate and the second sliding chute plate in a sliding manner, the air cylinder assembly comprises a first air cylinder connected in the first sliding chute plate in a sliding manner, and a second air cylinder matched with the first air cylinder is connected in the second sliding chute plate in a sliding manner;
the top of a piston rod of the first air cylinder is fixedly connected with a first end block, the top of a piston rod of the second air cylinder is fixedly connected with a second end block, and a scraper assembly is connected between the first end block and the second end block;
the scraper assembly comprises a cutter bar, wherein the cutter bar is provided with a top surface, a bottom surface, a right side surface and a left side surface;
the top surface of the cutter bar is fixedly connected with a first scraper knife, and the right side surface of the cutter bar is fixedly connected with a plurality of second scraper knives;
the left side surface of the cutter bar is fixedly connected with a plurality of third scraper knives, and the bottom surface of the cutter bar is fixedly connected with a fourth scraper knife;
the front side wall and the rear side wall of the cutter bar are rotationally connected to the corresponding first end block and the second end block through rotating shafts;
the scraping treatment device further comprises a driving assembly, and the driving assembly is used for driving the air cylinder assembly to slide left and right between the first chute plate and the second chute plate.
2. The petroleum processing sludge sewage treatment plant of claim 1 wherein the first blade has a trapezoidal longitudinal cross-sectional shape;
the longitudinal section of the fourth scraper knife is rectangular;
the second scraper knife is wedge-shaped, and the blade part of the second scraper knife faces right;
the cutting edge of the third scraper knife faces to the left, and a plurality of knife teeth are fixedly connected with the free end of the third scraper knife.
3. The petroleum processing sludge sewage treatment plant of claim 2 wherein one end of the rotating shaft connected with the front side wall of the cutter bar is provided with four threaded holes, and the four threaded holes are respectively flush with the top surface, the bottom surface, the right side surface and the left side surface of the cutter bar;
one end of the rotating shaft connected with the front side wall of the cutter bar is positioned in a first end block, a locking bolt is connected to the first end block in a threaded mode, and the locking bolt is in threaded connection with a threaded hole;
the rotating shaft is connected with the rear side wall of the cutter bar, and four threaded holes are formed in the rotating shaft and are respectively flush with the top surface, the bottom surface, the right side surface and the left side surface of the cutter bar;
one end of the rotating shaft connected with the rear side wall of the cutter bar is positioned in the second end block, a locking bolt is connected to the second end block in a threaded mode, and the locking bolt is in threaded connection with a threaded hole.
4. The petroleum processing sludge sewage treatment plant of claim 3 wherein the rear side wall of the first end block and the front side wall of the second end block are respectively provided with a rotating hole corresponding to the rotating shaft;
the rotating shafts are rotatably connected in the corresponding rotating holes, and the locking bolts are in threaded connection with the tops of the corresponding first end block and the second end block;
the bottom of the locking bolt penetrates through the corresponding first end block and the second end block downwards, and the bottom of the locking bolt is screwed in the threaded hole of the rotating shaft.
5. The petroleum processing sludge sewage treatment plant of claim 4 wherein the bottoms of the first cylinder and the second cylinder are both fixedly connected with a slide block, and the driving assembly comprises a bracket respectively connected with the slide blocks at the bottoms of the first cylinder and the second cylinder;
the bracket comprises a front end part and a rear end part, and the left end of the front end part is fixedly connected to the right side wall of the first cylinder bottom sliding block;
the left end of the rear end part is fixedly connected to the right side wall of the sliding block at the bottom of the second cylinder;
the right ends of the front end part and the rear end part are connected through a beam part;
the central part of crossbeam portion is equipped with the lead screw slider, the lead screw slider spiro union has the lead screw, lead screw connection has lead screw motor.
6. The petroleum processing sludge sewage treatment plant of claim 5 wherein the bottoms of the first and second cylinders are both fixedly connected with end plates, the end plates being fixedly connected to the tops of the corresponding slide blocks.
7. The petroleum processing sludge sewage treatment plant of claim 6 wherein the right sides of the front end and the rear end of the bracket are respectively sleeved with a sliding sleeve block, and the sliding sleeve blocks are sleeved with the corresponding front end and the rear end;
the sliding sleeve blocks are fixedly connected to the right end of the corresponding front side rack and the right end of the corresponding rear side rack in an inclined mode through connecting rods.
8. The petroleum processing sludge sewage treatment plant of claim 7 wherein the longitudinal cross-sectional shape of the front end and the rear end of the bracket is square;
the sliding sleeve is internally provided with a square sliding hole, and the front end part and the rear end part of the support are slidably connected in the sliding holes in the corresponding sliding sleeve.
9. The petroleum processing sludge sewage treatment plant of claim 7 wherein the screw motor is connected to a motor bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469989.5U CN211245662U (en) | 2019-09-05 | 2019-09-05 | Petroleum processing sludge and sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469989.5U CN211245662U (en) | 2019-09-05 | 2019-09-05 | Petroleum processing sludge and sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211245662U true CN211245662U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921469989.5U Active CN211245662U (en) | 2019-09-05 | 2019-09-05 | Petroleum processing sludge and sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211245662U (en) |
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2019
- 2019-09-05 CN CN201921469989.5U patent/CN211245662U/en active Active
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