CN213012089U - Glass fiber reinforced plastic oil separation tank - Google Patents
Glass fiber reinforced plastic oil separation tank Download PDFInfo
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- CN213012089U CN213012089U CN202021865626.6U CN202021865626U CN213012089U CN 213012089 U CN213012089 U CN 213012089U CN 202021865626 U CN202021865626 U CN 202021865626U CN 213012089 U CN213012089 U CN 213012089U
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- fiber reinforced
- reinforced plastic
- glass fiber
- oil
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 77
- 238000000926 separation method Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000000746 purification Methods 0.000 claims abstract description 30
- 239000010865 sewage Substances 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims description 42
- 238000001914 filtration Methods 0.000 claims description 24
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 5
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 239000010802 sludge Substances 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000002351 wastewater Substances 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 238000011084 recovery Methods 0.000 description 7
- 210000005056 cell body Anatomy 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 235000013361 beverage Nutrition 0.000 description 2
- 239000010794 food waste Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 description 1
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000005007 epoxy-phenolic resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a glass fiber reinforced plastic oil separation tank, which comprises a glass fiber reinforced plastic tank body, the front end of the glass fiber reinforced plastic tank body is provided with a sewage inlet, one end of the sewage inlet extending into the glass fiber reinforced plastic tank body is provided with a residue filter box, a plurality of clapboards are arranged at intervals at the rear part of the residue filter box, the bottoms of the clapboards are connected on the bottom of the glass fiber reinforced plastic tank body, a distance is reserved between the top and the top of the glass fiber reinforced plastic tank body, the clapboards divide the interior of the glass fiber reinforced plastic tank body into a plurality of oil separation tanks and divide the last section of the glass fiber reinforced plastic tank body into a water purification chamber, an oil floating area is formed between the upper part of the top of the clapboard and the top of the glass fiber reinforced plastic tank body, the drain pipe is an L-shaped bent pipe, one end opening of the drain pipe is downwards arranged in the previous oil separation tank, the, one end of the water outlet is connected with the upper end of the purification device.
Description
Technical Field
The utility model relates to an oil interceptor technical field specifically is a glass steel oil interceptor.
Background
Glass Fiber Reinforced Plastics (FRP), also known as GFRP, is a fiber reinforced plastic, generally a reinforced plastic made of unsaturated polyester, epoxy resin and phenolic resin matrix reinforced with glass fiber or its products, and is called glass fiber reinforced plastic, or glass fiber reinforced plastic. Glass fiber reinforced plastic is a composite material which develops rapidly in nearly fifty years, and the glass fiber reinforced plastic has high hardness and is much lighter than steel.
The oil separation tank is a wastewater pretreatment structure for removing floatable oil substances in oily wastewater by utilizing the floating effect generated by the density difference between oil drops and water. The structure of the oil separation tank adopts a horizontal flow mode mostly, oily wastewater enters the oil separation tank with a rectangular plane through a water distribution tank, slowly flows along the horizontal direction, oil products float on the water surface in the flow, and the oil products are pushed into an oil collection pipe by an oil collection pipe or an oil scraper arranged on the surface of the tank to flow into a dehydration tank. The wastewater after oil separation treatment overflows into a drainage channel and is discharged out of the pool, and subsequent treatment is carried out to remove emulsified oil and other pollutants.
The glass fiber reinforced plastic oil separation tank is a high-efficiency unpowered oil-water separation device newly developed on the basis of the traditional oil-water separation tank, can recycle more than 90 percent of waste oil, can effectively protect the environment, can save a large amount of operating cost, is widely applied to the fields of restaurants, factories, hospitals, schools and the like, has simple functions and has great improvement space.
SUMMERY OF THE UTILITY MODEL
To the problem that the background art provided, this application provides a glass steel oil interceptor, has advantages such as the deoiling is effectual, automatic recovery residue and oil slick, waste water discharge to reach standard.
The technical scheme of the utility model as follows:
a glass fiber reinforced plastic oil separation tank comprises a glass fiber reinforced plastic tank body, wherein a sewage inlet is formed in the front end of the glass fiber reinforced plastic tank body, a residue filter box is arranged at one end, extending into the sewage inlet, in the glass fiber reinforced plastic tank body, of the glass fiber reinforced plastic tank body, a plurality of partition plates are arranged behind the residue filter box at intervals, the bottoms of the partition plates are connected to the bottom of the glass fiber reinforced plastic tank body, a distance is reserved between the top of the partition plates and the top of the glass fiber reinforced plastic tank body, the partition plates divide the interior of the glass fiber reinforced plastic tank body into a plurality of oil separation tanks and divide the last section of the glass fiber reinforced plastic tank body into a water purification chamber, an oil floating region is formed between the upper portion of the tops of the partition plates and the top of the glass fiber reinforced plastic tank body, a drain pipe is arranged on the lower portion of each partition plate, the water purification device is arranged in the water purification chamber, a water outlet is formed in the rear end of the glass fiber reinforced plastic tank body, and one end of the water outlet is connected with the upper end of the water purification device.
Furthermore, a first baffle plate is arranged behind the residue filter box, a first oil separation tank is formed between the first baffle plate and the front end face of the glass fiber reinforced plastic tank body, an oil floating area is formed between the upper part of the top of the first baffle plate and the top of the glass fiber reinforced plastic tank body, a second baffle plate is arranged behind the first baffle plate at a certain interval, a second oil separation tank is formed between the first baffle plate and the second baffle plate, a first baffle plate is arranged at the top of the second oil separation tank, a first oil floating outlet is formed in the first baffle plate, a third baffle plate is arranged behind the second baffle plate at a certain interval, a third oil separation tank is formed between the second baffle plate and the third baffle plate, a second baffle plate is arranged at the top of the third oil separation tank, a second oil floating outlet is formed in the second baffle plate, a water purification chamber is formed between the third baffle plate and the rear end face of the glass fiber reinforced plastic tank body, a third baffle plate is arranged at the top of the water purification chamber, and a third floating oil outlet is formed in the third baffle.
Further, the purification device is an aeration purification device or a dosing flocculation purification device.
Furthermore, the top of the residue filtering box is connected to the glass fiber reinforced plastic tank body, a distance is reserved between the bottom of the residue filtering box and the bottom of the glass fiber reinforced plastic tank body, water outlet holes are formed in the bottom of the residue filtering box and the side walls of the two sides of the residue filtering box, the wall far away from the sewage inlet is plate-shaped, and a residue conveying device is arranged in the residue filtering box.
Further, the slope of residue filter tank bottom plate sets up, set up residue conveyor's residue inlet section in the residue filter tank, the bottom plate that residue inlet section set up along the slope of residue filter tank extends, residue conveyor's residue inlet section is located the export below of dirty mouthful, the one side of the ascending slope of residue filter tank bottom plate sets up the mouth that residue conveyor stretches out, residue conveyor extends up to stretching out the glass steel cell body to one side, the one end that residue conveyor stretches out the glass steel cell body sets up residue outlet section, residue outlet section downwardly opening, residue outlet section below sets up receipts sediment pond, residue conveyor connects the motor.
Further, the residue conveying device is a feeding screw.
Further, the outlet of the sewage inlet is obliquely cut downwards so as to facilitate sewage to fall on the residue conveying device.
Furthermore, a floating oil conveying device is arranged in the floating oil area.
The utility model has the advantages that: greasy dirt waste water of food and beverage trade etc. gets into this oil interceptor from advancing dirty mouthful, at first by solid waste recovery such as food waste in the residue recovery unit with the sewage, then greasy dirt waste water is through tertiary settlement oil removal back, discharge up to standard through purifying at last, the greasy dirt is because specific gravity is lighter than water, will float to glass steel cell body upper portion in the settlement process, set up the oil slick district on glass steel cell body upper portion, set up oil slick conveyor in the oil slick district, in time strike off and discharge the greasy dirt, avoid the greasy dirt to discharge from the outlet, cause the pollution.
Drawings
FIG. 1 is a schematic structural view of a glass fiber reinforced plastic oil separation tank;
FIG. 2 is a schematic structural view of a residue recovery apparatus for a glass fiber reinforced plastic oil separator;
FIG. 3 is a schematic structural view of a floating oil cleaning device for a glass fiber reinforced plastic oil separation tank;
the reference numbers in the figures illustrate: a glass fiber reinforced plastic tank body 1, a sewage inlet 2, a residue filter tank 3, a water outlet 3-1, a residue isolation tank 4, a first partition plate 5, a first oil separation tank 6, a floating oil zone 7, a first water discharge pipe 8, a second oil separation tank 9, a first baffle plate 10, a first floating oil outlet 10-1, a second partition plate 11, a second water discharge pipe 12, a third oil separation tank 13, a second baffle plate 14, a second floating oil outlet 14-1, a third partition plate 15, a third water discharge pipe 16, a water purification chamber 17, a third baffle plate 18, a third floating oil outlet 18-1, a purification device 19, a water discharge port 20, a residue conveying device 21, a residue inlet section 21-1, a residue outlet section 21-2, a motor 21-3, a residue collecting tank 23, a floating oil conveying device 22, a floating oil cleaning port 1-2, a driving wheel 22-1, a driven wheel 22-2, a toothed conveyer belt 22-3, a water outlet 5, a sump 24.
Detailed Description
The present invention will be further described with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art.
In the embodiment of the present invention, all the directional indicators (such as upper, lower, left, right, front, and rear … …) are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture changes, the directional indicator changes accordingly; the description herein of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated; the technical solution described in this specification aims to achieve the object of the present invention, and the parts not described in detail are realized by using the prior art.
As shown in the attached figure 1, the glass fiber reinforced plastic oil separation tank comprises a glass fiber reinforced plastic tank body 1, wherein a sewage inlet 2 is arranged at the front end of the glass fiber reinforced plastic tank body 1, a residue filtering tank 3 is arranged at one end, extending into the sewage inlet 2, in the glass fiber reinforced plastic tank body 1, the top of the residue filtering tank 3 is connected to the glass fiber reinforced plastic tank body 1, a certain distance is reserved between the bottom and the bottom of the glass fiber reinforced plastic tank body 1, water outlet holes 3-1 are arranged at the bottom and the side walls at two sides of the residue filtering tank 3, the wall far away from the sewage inlet 2 is plate-shaped (without water outlet holes), a residue conveying device 21 is arranged in the residue filtering tank 4, a first partition plate 5 is arranged behind the residue filtering tank 2, the bottom of the first partition plate 5 is connected to the bottom of the glass fiber reinforced plastic tank body 1, a certain distance is reserved between the top and the top of the glass fiber reinforced plastic tank body 1, an oil floating area 7 is formed between the upper part of the top of the first partition plate 5 and the top of the glass fiber reinforced plastic tank body 1, an oil floating conveying device 22 is arranged in the oil floating area 7, a second partition plate 11 is arranged at a certain distance behind the first partition plate 5, a second oil separating tank 9 is formed between the first partition plate 5 and the second partition plate 11, a first baffle plate 10 is arranged at the top of the second oil separating tank 9, a first oil floating outlet 10-1 is formed in the first baffle plate 10, a first water discharging pipe 8 is arranged at the lower part of the first partition plate 5, the first water discharging pipe 8 is an L-shaped bent pipe, one end of the first water discharging pipe 8 is downwards opened and arranged in the first oil separating tank 6, the other end of the first water discharging pipe 8 is arranged in the second oil separating tank 9, a third partition plate 15 is arranged at a certain distance behind the second partition plate 11, and a third oil separating tank 13 is formed between the second partition plate 11 and the third partition plate 15, a second baffle 14 is arranged at the top of the third oil separation tank 13, a second floating oil outlet 14-1 is arranged on the second baffle 14, a second drain pipe 12 is arranged at the lower part of the second partition plate 11, the second drain pipe 12 is an L-shaped bent pipe, one end of the second drain pipe 12 is downwards arranged in the second oil separation tank 9, the other end of the second drain pipe 12 is arranged in the third oil separation tank 13, a water purification chamber 17 is formed between the third partition plate 15 and the rear end face of the glass fiber reinforced plastic tank body 1, a third baffle 18 is arranged at the top of the water purification chamber 17, a third floating oil outlet 18-1 is arranged on the third baffle 18, a third drain pipe 16 is arranged at the lower part of the third partition plate 15, the third drain pipe 16 is an L-shaped bent pipe, one end of the third drain pipe 16 is downwards arranged in the third oil separation tank 13, and the other end of the third drain pipe 13 is arranged in the water purification chamber 17, a purification device 19 is arranged in the water purification chamber 17, the purification device 19 is an aeration purification device or a dosing flocculation purification device, a water outlet 20 is arranged at the rear end of the glass fiber reinforced plastic tank body 1, and one end of the water outlet 20 is connected with the upper end of the purification device 19.
Further, as shown in the attached drawing 2, a sludge recovery device of a glass fiber reinforced plastic oil separation tank is provided, wherein a sludge inlet 2 is provided at the front end of a glass fiber reinforced plastic tank body 1, a sludge filtering tank 3 is provided at the end of the glass fiber reinforced plastic tank body 1 into which the sludge inlet 2 extends, the top of the sludge filtering tank 3 is connected to the glass fiber reinforced plastic tank body 1, the bottom plate of the sludge filtering tank 3 is arranged in an inclined manner and keeps a distance from the bottom of the glass fiber reinforced plastic tank body 1, water outlet holes 31 are provided at the bottom plate and the side walls at the two sides of the bottom plate of the sludge filtering tank 3, the wall of the sludge filtering tank 3 far away from the sludge inlet 2 is plate-shaped, a sludge inlet section 21-1 of a sludge conveying device 21 is provided in the sludge filtering tank 4, the sludge inlet section 21-1 extends along the bottom plate of the inclined manner of the sludge filtering tank 4, the sludge conveying device 21 is a feeding screw, the inlet section 21, the outlet of the sewage inlet 2 is obliquely cut downwards to facilitate sewage to fall on the residue conveying device 21, an opening extending out of the residue conveying device 21 is formed in one side, inclined upwards, of the bottom plate of the residue filtering box 3, the residue conveying device 21 extends upwards in an inclined mode until the bottom plate extends out of the glass fiber reinforced plastic tank body 1, a residue outlet section 21-2 is formed in one end, extending out of the glass fiber reinforced plastic tank body 1, of the residue conveying device 21, the residue outlet section 21-2 is opened downwards, a residue collecting tank 23 is arranged below the residue outlet section 21-2, the residue conveying device 21 is connected with a motor 21-3, and the motor 21-3 is arranged outside the glass fiber reinforced plastic tank body 1.
Further, as shown in fig. 3, in the floating oil collecting device of the glass fiber reinforced plastic oil separation tank, a floating oil conveying device 22 is arranged in a floating oil zone 7 arranged at the upper part of a glass fiber reinforced plastic tank body 1, a floating oil cleaning port 1-2 is arranged on the glass fiber reinforced plastic tank body 1 at one side of the floating oil zone 7, the floating oil conveying device 22 extends out of the glass fiber reinforced plastic tank body 1 from the floating oil cleaning port 1-2, the floating oil conveying device 22 comprises a driving wheel 22-1, a driven wheel 22-2 and a toothed conveyer belt 22-3, the driving wheel 22-1 is positioned outside the floating oil cleaning port 1-2, the driven wheel 22-2 is positioned in the floating oil zone 7, one end of the toothed conveyer belt 22-3 extends into the floating oil zone 7, the other end extends out of the floating oil cleaning port 1-2, the driving wheel 22-1 drives the driven wheel 22-2 to rotate, thereby driving the toothed conveyer belt 22-3 to send the floating oil in the floating oil zone 7 out of the glass fiber reinforced plastic tank body 1, wherein an oil collecting tank 24 is arranged below one end of the toothed conveyer belt 22-3 extending out of the floating oil cleaning port 1-2, and the oil collecting tank 24 is also positioned below the outlet end of the floating oil cleaning port 1-2.
The utility model discloses a theory of operation: greasy dirt waste water of food and beverage trade etc. gets into this oil interceptor from advancing dirty mouthful 2, at first by solid waste recovery such as food waste in the residue recovery unit with the sewage, then greasy dirt waste water is after tertiary settlement oil removal, discharge up to standard through purifying at last, the greasy dirt is because specific gravity is lighter than water, will float to 1 upper portion of glass steel cell body in the settlement process, set up oil slick district 7 on 1 upper portion of glass steel cell body, set up oil slick conveyor 22 in oil slick district 7, in time strike off and discharge the greasy dirt, avoid the greasy dirt to discharge from outlet 20, cause the pollution.
The above embodiments are only used to illustrate the preferred embodiments of the present invention, but not to limit the present invention, and to those skilled in the art, according to the idea of the present invention, there will be some changes in the detailed description and the application scope, and the content of the present description should not be interpreted as a limitation to the present invention.
Claims (9)
1. A glass fiber reinforced plastic oil separation tank is characterized by comprising a glass fiber reinforced plastic tank body, wherein a sewage inlet is formed in the front end of the glass fiber reinforced plastic tank body, a residue filtering tank is arranged at one end, extending into the sewage inlet, in the glass fiber reinforced plastic tank body, of the glass fiber reinforced plastic tank body, a plurality of partition plates are arranged behind the residue filtering tank at intervals, the bottoms of the partition plates are connected to the bottom of the glass fiber reinforced plastic tank body, a distance is reserved between the top of each partition plate and the top of the glass fiber reinforced plastic tank body, the partitions divide the interior of the glass fiber reinforced plastic tank body into a plurality of oil separation tanks and divide the last section of the glass fiber reinforced plastic tank body into a water purification chamber, an oil floating area is formed between the upper part of the tops of the partition plates and the top of the glass fiber reinforced plastic tank body, a drain pipe is arranged at the lower part of each partition plate, the, the water purification device is arranged in the water purification chamber, a water outlet is formed in the rear end of the glass fiber reinforced plastic tank body, and one end of the water outlet is connected with the upper end of the water purification device.
2. The GRP oil separation tank as claimed in claim 1, wherein a first partition plate is disposed behind the residue filtering tank, a first oil separation tank is formed between the first partition plate and the front end face of the GRP tank body, an oil floating region is formed between the top of the first partition plate and the top of the GRP tank body, a second partition plate is disposed at a certain distance behind the first partition plate, a second oil separation tank is formed between the first partition plate and the second partition plate, a first baffle plate is disposed at the top of the second oil separation tank, a first oil floating outlet is disposed on the first baffle plate, a third partition plate is disposed at a certain distance behind the second partition plate, a third oil separation tank is formed between the second partition plate and the third partition plate, a second baffle plate is disposed at the top of the third oil separation tank, a second oil floating outlet is disposed on the second baffle plate, and a water purifying chamber is formed between the third partition plate and the rear end face of the GRP tank body, and a third baffle is arranged at the top of the water purification chamber, and a third floating oil outlet is formed in the third baffle.
3. The fiberglass oil interceptor of claim 1, wherein the purification apparatus is an aeration purification apparatus or a chemical-adding flocculation purification apparatus.
4. The GRP oil separation tank as claimed in any one of claims 1 to 3, wherein the top of the residue filtering tank is connected to the GRP tank body, a distance is reserved between the bottom and the bottom of the GRP tank body, water outlet holes are arranged on the bottom and two side walls of the residue filtering tank, the wall far away from the sewage inlet is plate-shaped, and a residue conveying device is arranged in the residue filtering tank.
5. The fiber reinforced plastic oil interceptor of claim 4, wherein the bottom plate of the residue filter box is disposed in an inclined manner, the residue inlet section of the residue conveying device is disposed in the residue filter box, the residue inlet section extends along the bottom plate of the residue filter box, the residue inlet section of the residue conveying device is located below the outlet of the dirt inlet, the outlet of the residue conveying device is disposed on the side of the bottom plate of the residue filter box inclined upward, the residue conveying device extends obliquely upward until the residue conveying device extends out of the fiber reinforced plastic tank body, the residue outlet section is disposed at the end of the residue conveying device extending out of the fiber reinforced plastic tank body, the residue outlet section is open downward, the residue collecting tank is disposed below the residue outlet section, and the residue conveying device is connected with the motor.
6. The fiberglass oil interceptor of claim 5, wherein the scrap conveyor is a feed screw.
7. The fiberglass oil interceptor of claim 6, wherein the outlet of the sewage inlet is beveled downward to facilitate sewage to fall onto the residue transport device.
8. The fiberglass oil interceptor of any one of claims 1-3 and 5-7, wherein a floating oil conveyor is disposed in the floating oil zone.
9. The fiberglass oil interceptor of claim 4, wherein a floating oil conveyor is disposed within the floating oil zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021865626.6U CN213012089U (en) | 2020-09-01 | 2020-09-01 | Glass fiber reinforced plastic oil separation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021865626.6U CN213012089U (en) | 2020-09-01 | 2020-09-01 | Glass fiber reinforced plastic oil separation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213012089U true CN213012089U (en) | 2021-04-20 |
Family
ID=75473565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021865626.6U Active CN213012089U (en) | 2020-09-01 | 2020-09-01 | Glass fiber reinforced plastic oil separation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213012089U (en) |
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2020
- 2020-09-01 CN CN202021865626.6U patent/CN213012089U/en active Active
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Effective date of registration: 20231122 Address after: Room 303, Building 7, Vanke City, No. 148 Fuyuan West Road, Kaifu District, Changsha City, Hunan Province, 410005 Patentee after: Hunan Cooperation and Win Win Technology Co.,Ltd. Address before: 410000 dengbei formation, Daqiao Pian, dunmu village, Shashi Town, Liuyang City, Changsha City, Hunan Province Patentee before: Changsha Wansheng environmental protection equipment Co.,Ltd. |