CN223170544U - Cleaning device for oilfield sewage filter material - Google Patents
Cleaning device for oilfield sewage filter materialInfo
- Publication number
- CN223170544U CN223170544U CN202422432713.7U CN202422432713U CN223170544U CN 223170544 U CN223170544 U CN 223170544U CN 202422432713 U CN202422432713 U CN 202422432713U CN 223170544 U CN223170544 U CN 223170544U
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- filter material
- cleaning
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- water control
- storage tank
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Abstract
本实用新型提供了一种油田污水滤料清洗装置，包括滤料储存箱、滤料清洗箱和储水箱，滤料清洗箱顶端固定安装有驱动电机，驱动电机的输出轴末端传动连接有驱动轴，驱动轴底端固定安装有滤料清洗波轮，驱动轴外转动套设有控水出料传动丝杠，控水出料传动丝杠与第一联轴器传动连接，控水出料传动丝杠上螺纹套接有滤料控水出料盘。本实用新型在清洗桶内设置有滤料清洗波轮和滤料控水出料盘，驱动电机带动滤料清洗波轮进行转动，对滤料进行清洗，清洗完成后，滤料控水出料盘上升，控出滤料中的污水，清洗效率高，集清洗、打捞、控水、排污与储存功能于一体，实现了半自动化操作，降低了劳动强度。
The utility model provides an oilfield sewage filter media cleaning device, including a filter media storage box, a filter media cleaning box, and a water storage tank. A drive motor is fixedly installed on the top of the filter media cleaning box, the output shaft end of the drive motor is transmission-connected to the drive shaft, the bottom of the drive shaft is fixedly installed with a filter media cleaning impeller, a water control and discharge transmission screw is provided on the outer rotating sleeve of the drive shaft, the water control and discharge transmission screw is transmission-connected to a first coupling, and a filter media water control and discharge disc is threadedly sleeved on the water control and discharge transmission screw. The utility model is provided with a filter media cleaning impeller and a filter media water control and discharge disc in a cleaning barrel, the drive motor drives the filter media cleaning impeller to rotate to clean the filter media, and after cleaning is completed, the filter media water control and discharge disc rises to control the sewage in the filter media, achieving high cleaning efficiency, integrating cleaning, salvaging, water control, sewage discharge, and storage functions, realizing semi-automatic operation, and reducing labor intensity.
Description
Technical Field
The utility model relates to a filter material cleaning device, in particular to an oilfield sewage filter material cleaning device.
Background
In the field of engineering requiring a filtration process, such as in an oil field, various filtration tanks are widely used as a common device for deep sewage treatment. After the sand filtering material is used for a certain time, the filtering performance is reduced or even blocked and lost due to adhesion and pollution of impurities such as dirty oil, sludge and the like. If the used filtering sand is directly abandoned, the environment is polluted, and the cost for replacing the new filtering sand is higher. Therefore, the recycling problem of the filtered sand is concerned by the industry, and the cleaning process of the filtered sand is a core technical point of recycling.
At present, the filtering sand materials are mainly stirred and cleaned in a filtering tank manually, and the processing effect is good, but the labor intensity is high and the processing efficiency is low. And the air bubble type online cleaning technology in the filter tank has low labor intensity, but the filter tank needs to be modified, and the online cleaning effect in the filter tank is poor.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides the oilfield sewage filter material cleaning device which integrates the functions of cleaning, salvaging, controlling water, discharging and storing oilfield sewage filter materials, realizes semi-automatic operation, and has the characteristics of simple structure, convenient operation and energy conservation.
In order to solve the technical problems, the technical scheme is that the oilfield sewage filter material cleaning device is characterized by comprising a filter material storage box, a filter material cleaning box and a water storage box, wherein the filter material cleaning box is positioned between the filter material storage box and the water storage box, the filter material cleaning box is communicated with the side end of the top of the filter material storage box through a filter material channel, and filter materials which are cleaned in the filter material cleaning box can enter the filter material storage box from the filter material channel.
The filter material storage box and the filter material cleaning box are internally and fixedly provided with high-pressure water pipes at the top ends, a plurality of high-pressure spray heads are arranged at the bottom end of each high-pressure water pipe at equal intervals, a high-pressure water pump is arranged outside the bottom of each water storage box and is communicated with the high-pressure water pipes and the water storage boxes, clear water in the water storage boxes is conveyed into the high-pressure water pipes and sprayed out from the high-pressure spray heads to flush the filter material in the filter material cleaning boxes and the filter material storage boxes.
The filter material storage box is characterized in that a filter material discharge guide plate is arranged at the bottom end in the filter material storage box, a filter material outlet is arranged at the side end of the bottom of the filter material storage box, and the filter material in the filter material storage box is used for draining moisture on the filter material discharge guide plate and can be discharged from the filter material outlet.
The filter material cleaning box is internally provided with a cleaning barrel, the top end of the cleaning barrel is fixedly provided with a cleaning barrel support, the top end of the cleaning barrel support is fixedly provided with a driving motor through a driving motor support, the tail end of an output shaft of the driving motor is connected with a driving shaft through a first coupling, the bottom end of the driving shaft is fixedly provided with a filter material cleaning impeller, the driving shaft is externally rotated and sleeved with a water control discharge transmission screw rod, the water control discharge transmission screw rod is in transmission connection with the first coupling through a ratchet pawl mechanism, a filter material water control discharge disc is sleeved on the water control discharge transmission screw rod through threads, the top end of the filter material water control discharge disc is provided with a roller path, the top surface of the filter material water control discharge disc is arranged into a cone shape, and the middle position of the filter material water control discharge disc is higher than the edge position.
The driving motor drives the driving shaft to rotate through the first coupling, and the driving shaft drives the filter material cleaning impeller to rotate so as to clean the filter material. After cleaning, the ratchet pawl mechanism is adjusted, the water control discharge transmission screw rod is fixedly connected with the driving shaft, the water control discharge transmission screw rod can rotate along with the driving shaft, the filter material water control discharge disc ascends along the water control discharge transmission screw rod, the filter material on the filter material water control discharge disc is driven to ascend, sewage in the filter material is discharged along the filter material water control discharge disc under the action of gravity in the ascending process, and when the filter material water control discharge disc moves to the top end of the water control discharge transmission screw rod, the sewage can enter the filter material storage box from the filter material channel.
Preferably, a plurality of drain holes are formed in the bottom plate of the cleaning barrel, and sewage in the cleaning barrel can be discharged out of the cleaning barrel from the drain holes and enter the bottom end of the filter material cleaning box.
Preferably, the filter material washs the case bottom and rotates and install and washs case blowdown lead screw, it has and washs case blowdown scraper blade to washs case blowdown lead screw threaded connection, the filter material washs case bottom side and is provided with and washs case drain, the filter material washs the case outer end and is provided with and washs case blowdown motor, it is connected through the transmission of second coupling with washcase blowdown lead screw to washs case blowdown motor.
The cleaning tank sewage discharging motor drives the cleaning tank sewage discharging screw rod to rotate, so that the cleaning tank sewage discharging scraper blade moves back and forth at the bottom end of the filter material cleaning tank to scrape sewage at the bottom end of the filter material cleaning tank and discharge the sewage from the sewage outlet of the cleaning tank
Preferably, the filter material bin bottom rotates and installs bin drain lead screw, bin drain lead screw threaded connection has bin drain scraper blade, filter material bin bottom side is provided with the bin drain, the filter material bin outer end is provided with bin drain motor, bin drain motor passes through third shaft coupling transmission with bin drain lead screw and is connected.
The storage tank blowdown motor drives the storage tank blowdown lead screw, so that the storage tank blowdown scraper blade reciprocates at the bottom end of the filter material storage tank, scrapes out sewage at the bottom end of the filter material storage tank, and is discharged from a storage tank blowdown outlet.
Preferably, the ratchet pawl mechanism comprises a shell fixedly connected to the top end of the water control discharging transmission screw, the driving shaft is rotationally sleeved in the shell, four manual commutators are symmetrically rotationally installed in the shell, the manual commutators encircle the driving shaft, the manual commutators are fixedly connected with a bidirectional pawl, a ratchet gear ring is fixedly sleeved on the driving shaft, the bidirectional pawl is matched with the ratchet gear ring, and a spring support body is arranged between the bidirectional pawl and the shell.
The bidirectional pawl can be switched through the manual commutator, so that the water control discharge transmission screw rod is connected with or disconnected from the driving shaft, and the conversion of the working modes of driving the filter material cleaning impeller by the driving motor and simultaneously driving the filter material cleaning impeller and the filter material water control discharge disc is realized.
Preferably, the high-pressure water pump is communicated with the high-pressure water pipe through a water inlet pipe, the high-pressure water pump conveys water in the water storage tank into the high-pressure water pipe for cleaning operation, and a water outlet is arranged at the side end of the water storage tank and used for discharging water in the water storage tank.
Preferably, cushion blocks are arranged at the bottom ends of the filter material storage box, the filter material cleaning box and the water storage box, so that a supporting effect is achieved.
Compared with the prior art, the utility model has the following advantages:
The filter material cleaning impeller and the filter material water control discharging disc are arranged in the cleaning barrel of the filter material cleaning box, the filter material cleaning impeller is driven by the driving motor to rotate, the filter material is cleaned, the filter material water control discharging disc is driven by the driving motor to ascend after cleaning is finished, sewage in the filter material is controlled, the filter material is finally cleaned through the high-pressure water pipes and the high-pressure spray heads at the top ends of the filter material cleaning box and the filter material storage box, the cleaning efficiency is high, the sewage discharging motor is arranged outside the bottom ends of the filter material cleaning box and the filter material storage box, the sewage discharging scraping plate of the storage box and the sewage discharging scraping plate of the cleaning box can be driven by the sewage discharging motor to move, the sewage at the bottom ends of the filter material cleaning box and the filter material storage box is integrated with cleaning, salvaging, water control, sewage discharging and storage functions, semi-automatic operation is realized, and labor intensity is reduced.
The utility model is described in further detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of the internal structure of the present utility model.
Fig. 3 is a schematic diagram of the front structure of the present utility model.
Fig. 4 is a schematic view of the back structure of the present utility model.
Fig. 5 is a top view of the present utility model.
Fig. 6 is a right side view of the present utility model.
Fig. 7 is a left side view of the present utility model.
Fig. 8 is a schematic view of the ratchet-pawl mechanism of the present utility model.
Reference numerals illustrate:
1-cushion block, 2-high pressure water pump, 3-cleaning box blow-down motor;
4-a storage tank sewage discharge motor, 5-a filter material outlet, 6-a filter material storage tank;
7-a filter material channel, 8-a high-pressure water pipe and 9-a high-pressure spray head;
10-a cleaning barrel bracket, 11-a driving motor bracket, 12-a ratchet and pawl mechanism;
121-ratchet gear ring, 122-spring support, 123-drive shaft;
124-manual commutator, 125-two-way pawl, 126-shell;
13-a first coupling, 14-a driving motor and 15-a cleaning barrel;
16-a filter material cleaning box, 17-a water inlet pipe and 18-a water storage tank;
19-water outlet, 20-cleaning box blow-down screw rod, 21-bottom plate;
The filter material cleaning impeller is 22, the filter material water control discharging disc is 23, and the water control discharging driving screw is 24;
The filter material discharging guide plate 25, the storage tank drain outlet 26 and the storage tank drain scraper 27;
28-a storage tank drain lead screw; 29-cleaning tank drain outlet, 30-cleaning tank drain scraper;
31-second coupling and 32-third coupling.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
As shown in fig. 1-8, the utility model provides an oilfield sewage filter material cleaning device, which comprises a filter material storage box 6, a filter material cleaning box 16 and a water storage tank 18, wherein the filter material cleaning box 16 is positioned between the filter material storage box 6 and the water storage tank 18, the filter material cleaning box 16 is communicated with the side end of the top of the filter material storage box 6 through a filter material channel 7, and filter materials which are cleaned in the filter material cleaning box 16 can enter the filter material storage box 6 from the filter material channel 7.
The high-pressure water pipes 8 are fixedly installed in the top ends of the filter material storage tank 6 and the filter material cleaning tank 16, a plurality of high-pressure spray heads 9 are arranged at the bottom ends of the high-pressure water pipes 8 at equal intervals, a high-pressure water pump 2 is arranged outside the bottom of the water storage tank 18, the high-pressure water pump 2 is communicated with the high-pressure water pipes 8 and the water storage tank 18, clear water in the water storage tank 18 is conveyed into the high-pressure water pipes 8 and sprayed out from the high-pressure spray heads 9, and the filter material in the filter material cleaning tank 16 and the filter material storage tank 6 is washed.
The inner bottom of the filter material storage box 6 is provided with a filter material discharge guide plate 25, the side end of the bottom of the filter material storage box 6 is provided with a filter material outlet 5, and the filter material in the filter material storage box 6 is used for drying water on the filter material discharge guide plate 25 and can be discharged from the filter material outlet 5.
The filter material cleaning box 16 is internally provided with a cleaning barrel 15, a cleaning barrel support 10 is fixedly arranged at the top end of the cleaning barrel 15, a driving motor 14 is fixedly arranged at the top end of the cleaning barrel support 10 through a driving motor support 11, a driving shaft 123 is connected to the tail end of an output shaft of the driving motor 14 through transmission of a first coupler 13, a filter material cleaning impeller 22 is fixedly arranged at the bottom end of the driving shaft 123, a water control discharge transmission screw 24 is sleeved outside the driving shaft 123 in a rotating manner, the water control discharge transmission screw 24 is in transmission connection with the first coupler 13 through a ratchet pawl mechanism 12, a filter material water control discharge disc 23 is sleeved on the water control discharge transmission screw 24 in a threaded manner, a roller path is arranged at the top end of the filter material water control discharge disc 23, the top surface of the filter material water control discharge disc 23 is arranged in a conical shape, and the middle position of the filter material water control discharge disc 23 is higher than the edge position.
The driving motor 14 drives the driving shaft 123 to rotate through the first coupling 13, and the filter material cleaning impeller 22 rotates along with the driving shaft 123 to clean the filter material. After cleaning, the ratchet pawl mechanism 12 is adjusted, the water control discharge transmission screw 24 is fixedly connected with the driving shaft 123, the water control discharge transmission screw 24 can rotate along with the driving shaft 123, the filter material water control discharge tray 23 ascends along the water control discharge transmission screw 24, the filter material on the filter material water control discharge tray 23 is driven to ascend, sewage in the filter material is discharged along the filter material water control discharge tray 23 under the action of gravity in the ascending process, and when the filter material water control discharge tray 23 moves to the top end of the water control discharge transmission screw 24, the sewage can enter the filter material storage box 6 from the filter material channel 7.
In this embodiment, the bottom plate 21 of the cleaning tank 15 is provided with a plurality of drain holes, and the sewage in the cleaning tank 15 can be discharged from the drain holes to enter the bottom end of the filter material cleaning tank 16.
In this embodiment, the filter material washs case 16 bottom and rotates installs washs case blowdown lead screw 20, washs case blowdown scraper 30 of case blowdown lead screw 20 threaded connection, filter material washs case 16 bottom side and is provided with washs case drain 29, filter material washs case 16 outer end and is provided with washs case blowdown motor 3, washs case blowdown motor 3 and washs case blowdown lead screw 20 and pass through second coupling 31 transmission connection.
The cleaning tank sewage discharging motor 3 drives the cleaning tank sewage discharging screw rod 20 to rotate, so that the cleaning tank sewage discharging scraper 30 reciprocates at the bottom end of the filter material cleaning tank 16, scrapes sewage at the bottom end of the filter material cleaning tank 16, and discharges the sewage from the cleaning tank sewage discharging outlet 29.
In this embodiment, the storage tank blowdown lead screw 28 is installed in rotation of filter material bin 6 bottom, storage tank blowdown lead screw 28 threaded connection has storage tank blowdown scraper 27, filter material bin 6 bottom side end is provided with storage tank drain 26, filter material bin 6 outer end is provided with storage tank blowdown motor 4, storage tank blowdown motor 4 passes through third shaft coupling 32 transmission with storage tank blowdown lead screw 28 and is connected.
The storage tank sewage discharge motor 4 drives the storage tank sewage discharge screw rod 28, so that the storage tank sewage discharge scraping plate 27 reciprocates at the bottom end of the filter material storage tank 6 to scrape sewage at the bottom end of the filter material storage tank 6 and discharge the sewage from the storage tank sewage discharge outlet 26.
In this embodiment, the ratchet pawl mechanism 12 includes a housing 126 fixedly connected to the top end of the water control discharge drive screw 24, the driving shaft 123 is rotatably sleeved in the housing 126, four manual commutators 124 are symmetrically rotatably installed in the housing 126, the manual commutators 124 encircle the driving shaft 123, the manual commutators 124 are fixedly connected with a bidirectional pawl 125, the driving shaft 123 is fixedly sleeved with a ratchet ring gear 121, the bidirectional pawl 125 is matched with the ratchet ring gear 121, and a spring support 122 is provided between the bidirectional pawl 125 and the housing 126.
The bidirectional pawl 125 can be switched through the manual commutator 124, so that the water control discharge transmission screw 24 is connected with or disconnected from the driving shaft 123, and the conversion of the working mode that the driving motor 14 only drives the filter material cleaning impeller 22 to simultaneously drive the filter material cleaning impeller 22 and the filter material water control discharge disc 23 is realized.
In this embodiment, the high-pressure water pump 2 is connected to the high-pressure water pipe 8 through the water inlet pipe 17, the high-pressure water pump 2 conveys water in the water storage tank 18 into the high-pressure water pipe 8 for cleaning operation, and a water outlet 19 is provided at a side end of the water storage tank 18 for discharging water in the water storage tank 18.
In this embodiment, the bottom ends of the filter material storage tank 6, the filter material cleaning tank 16 and the water storage tank 18 are provided with cushion blocks 1, which play a supporting role.
When in use, the driving motor 14 drives the driving shaft 123 to rotate through the first coupling 13, and the filter material cleaning impeller 22 rotates along with the driving shaft 123 to clean the filter material. The high-pressure water pipe 8 and the high-pressure spray nozzle 9 above the filter material cleaning box 16 can clean the surface of the fished-out filter material.
After cleaning, the ratchet pawl mechanism 12 is adjusted to enable the bidirectional pawl 125 to be meshed with the ratchet gear ring 121, the water control discharge transmission screw 24 is fixedly connected with the driving shaft 123, the water control discharge transmission screw 24 can rotate along with the driving shaft 123, the filter material water control discharge tray 23 ascends along the water control discharge transmission screw 24 to drive the filter material on the filter material water control discharge tray 23 to ascend, sewage in the filter material is discharged along the filter material water control discharge tray 23 under the action of gravity in the ascending process, and when the filter material water control discharge tray 23 moves to the top end of the water control discharge transmission screw 24, the sewage can enter the filter material storage box 6 from the filter material channel 7.
The high-pressure water pipe 8 and the high-pressure spray nozzle 9 above the filter material storage box 6 can carry out final cleaning on the filter material. The filter material in the filter material storage tank 6 is drained on the filter material discharge guide plate 25, and can be discharged from the filter material outlet 5.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model. Any simple modification, variation and equivalent variation of the above embodiments according to the technical substance of the utility model still fall within the scope of the technical solution of the utility model.
Claims (7)
1. The utility model provides an oilfield sewage filter material belt cleaning device, its characterized in that includes filter material bin (6), filter material washs case (16) and storage water tank (18), filter material washs case (16) and is located between filter material bin (6) and storage water tank (18), filter material washs case (16) and filter material bin (6) top side end and passes through filter material passageway (7) intercommunication, filter material bin (6) and filter material washs case (16) top internal fixation and has high-pressure water pipe (8), high-pressure water pipe (8) bottom equidistance is provided with a plurality of high-pressure shower nozzle (9), storage water tank (18) bottom is provided with high-pressure water pump (2) outward, high-pressure water pump (2) intercommunication high-pressure water pipe (8) and storage water tank (18), filter material discharge guide plate (25) are provided with to filter material bin (6) bottom side end, filter material bin (6) bottom side end is provided with filter material export (5);
The filter material cleaning box is characterized in that a cleaning barrel (15) is arranged in the filter material cleaning box (16), a cleaning barrel support (10) is fixedly arranged at the top end of the cleaning barrel (15), a driving motor (14) is fixedly arranged at the top end of the cleaning barrel support (10) through a driving motor support (11), a driving shaft (123) is connected to the tail end of an output shaft of the driving motor (14) through a first coupler (13) in a transmission manner, a filter material cleaning impeller (22) is fixedly arranged at the bottom end of the driving shaft (123), a water control discharge transmission screw (24) is sleeved outside the driving shaft (123), the water control discharge transmission screw (24) is in transmission connection with the first coupler (13) through a ratchet pawl mechanism (12), a filter material water control discharge disc (23) is sleeved on the water control transmission screw (24) in a threaded manner, and a roller path is arranged at the top end of the filter material water control discharge disc (23) in a conical shape.
2. An oilfield sewage filter material cleaning device according to claim 1, wherein the bottom plate (21) of the cleaning barrel (15) is provided with a plurality of drain holes.
3. An oilfield sewage filter material cleaning device according to claim 2, wherein a cleaning box drain screw (20) is rotatably installed at the bottom end of the filter material cleaning box (16), the cleaning box drain screw (20) is in threaded connection with a cleaning box drain scraper (30), and a cleaning box drain outlet (29) is arranged at the bottom side end of the filter material cleaning box (16);
The outer end of the filter material cleaning box (16) is provided with a cleaning box blow-down motor (3), and the cleaning box blow-down motor (3) is in transmission connection with a cleaning box blow-down screw (20) through a second coupling (31).
4. The oilfield sewage filter material cleaning device according to claim 1, wherein a storage tank drain lead screw (28) is rotatably installed at the bottom end of the filter material storage tank (6), the storage tank drain lead screw (28) is in threaded connection with a storage tank drain scraper (27), and a storage tank drain outlet (26) is arranged at the side end of the bottom of the filter material storage tank (6);
The outer end of the filter material storage box (6) is provided with a storage box blow-down motor (4), and the storage box blow-down motor (4) is in transmission connection with a storage box blow-down screw (28) through a third coupling (32).
5. The oilfield sewage filter material cleaning device according to claim 1, wherein the ratchet pawl mechanism (12) comprises a shell (126) fixedly connected to the top end of the water control discharge transmission screw (24), the driving shaft (123) is rotationally sleeved in the shell (126), four manual commutators (124) are symmetrically rotationally installed in the shell (126), the manual commutators (124) encircle the driving shaft (123), the manual commutators (124) are fixedly connected with a bidirectional pawl (125), a ratchet gear ring (121) is fixedly sleeved on the driving shaft (123), the bidirectional pawl (125) is matched with the ratchet gear ring (121), and a spring support (122) is arranged between the bidirectional pawl (125) and the shell (126).
6. An oilfield sewage filter material cleaning device according to claim 1, wherein the high-pressure water pump (2) is communicated with the high-pressure water pipe (8) through a water inlet pipe (17), and a water outlet (19) is arranged at the side end of the water storage tank (18).
7. An oilfield sewage filter material cleaning device according to claim 1, wherein the filter material storage tank (6), the filter material cleaning tank (16) and the water storage tank (18) are provided with cushion blocks (1) at the bottom ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422432713.7U CN223170544U (en) | 2024-10-09 | 2024-10-09 | Cleaning device for oilfield sewage filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422432713.7U CN223170544U (en) | 2024-10-09 | 2024-10-09 | Cleaning device for oilfield sewage filter material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223170544U true CN223170544U (en) | 2025-08-01 |
Family
ID=96541685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422432713.7U Active CN223170544U (en) | 2024-10-09 | 2024-10-09 | Cleaning device for oilfield sewage filter material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223170544U (en) |
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2024
- 2024-10-09 CN CN202422432713.7U patent/CN223170544U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHANGJI University Assignor: KARAMAY VOCATIONAL & TECHNICAL College Contract record no.: X2025980035474 Denomination of utility model: A washing device for oilfield wastewater filter media Granted publication date: 20250801 License type: Common License Record date: 20251117 |