CN214158830U - Multi-medium filtering device for sewage treatment - Google Patents
Multi-medium filtering device for sewage treatment Download PDFInfo
- Publication number
- CN214158830U CN214158830U CN202023350248.0U CN202023350248U CN214158830U CN 214158830 U CN214158830 U CN 214158830U CN 202023350248 U CN202023350248 U CN 202023350248U CN 214158830 U CN214158830 U CN 214158830U
- Authority
- CN
- China
- Prior art keywords
- filter
- sewage
- treatment part
- treatment
- filtering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model belongs to the technical field of sewage treatment, in particular to a multi-medium filtering device for sewage treatment, which comprises a filtering box, wherein the filtering box comprises a first treatment part, a second treatment part and a third treatment part, the first treatment part is communicated with a sewage inlet pipe, one side of the first treatment part, which is close to the sewage inlet pipe, is provided with a drainage plate, and one side of the first treatment part, which is far away from the sewage inlet pipe, is provided with a first filtering layer; two ends of the second treatment part are respectively detachably connected with the first treatment part and the third treatment part, the second treatment part is provided with a plurality of detachable second filter layers, and filter media are uniformly distributed in the second filter layers; a third detachable filter layer is arranged in the third treatment part, and one side of the third treatment part, which is far away from the third filter layer, is communicated with a purified water outlet pipe. An object of the utility model is to provide a multi-media filter equipment for sewage treatment can solve the filter medium and block up the filter easily and make the filter effect descend, the problem that the filter maintenance is wasted time and energy.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to multi-media filter equipment for sewage treatment.
Background
The multi-medium filter is a high-efficiency filtering device which utilizes one or more filtering media to effectively remove various suspended matters, microorganisms and other fine particles by passing water with higher turbidity through the media with certain thickness under certain pressure, and finally achieves the effects of reducing the water turbidity and purifying the water quality. The commonly used filter media comprise quartz sand, activated carbon, anthracite, manganese sand and the like, and have low price and simple equipment structure, so the filter media are widely applied to sewage treatment in various industries such as agricultural irrigation, chemical industry, petroleum, metallurgy and the like.
Most of the existing multi-media filters adopt granular filtering layers such as sand and stone for filtering, and when the multi-media filters are used, the filtering media can flow out and precipitate into a purification tank along with treated water to cause secondary pollution to water quality, and can also block the filters, so that the service life of filtering equipment is shortened; the existing multi-media filter is easy to generate media layering disorder of different media layers in the backwashing process, so that the backwashing disorder phenomenon is caused, and the filtering effect is reduced; the traditional multi-medium filter has poor interchangeability, is troublesome to disassemble and maintain, is difficult and time-consuming to replace parts and filter media, and even can only be abandoned due to the fact that the media cannot be poured out, so that the labor amount and the economic cost are increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multi-media filter equipment for sewage treatment can solve the filter medium and block up the filter easily, makes the filter effect descend, the problem that the filter maintenance is wasted time and energy.
In order to achieve the above purpose, the basic scheme of the utility model is as follows:
the multi-medium filtering device for sewage treatment comprises a filtering box, wherein the filtering box comprises a first treatment part, a second treatment part and a third treatment part, the first treatment part is communicated with a sewage inlet pipe, a drainage plate is arranged on one side, close to the sewage inlet pipe, of the first treatment part, and a first filtering layer is arranged on one side, far away from the sewage inlet pipe, of the first treatment part; two ends of the second treatment part are respectively detachably connected with the first treatment part and the third treatment part, the second treatment part is provided with a plurality of detachable second filter layers, and filter media are uniformly distributed in the second filter layers; and a detachable filter layer III is arranged in the third treatment part, and one side of the third treatment part, which is far away from the filter layer III, is communicated with a purified water outlet pipe.
The working principle of the scheme is as follows:
sewage to be treated enters the first treatment part from the sewage inlet pipe, the drainage plate drains the sewage to all parts of the first filter layer to ensure that the sewage is uniformly distributed on the first filter layer, and the filter layer performs primary screening on large impurities in the sewage and then the sewage flows into the second treatment part; the sewage is filtered by a plurality of filter layers II to become purified water and flows into a third treatment part; the filter layer III filters the purified water again, and intercepts fine impurities in the purified water and the filter medium flowing out along with the purified water, and the purified water flows out through the purified water outlet pipe.
The beneficial effect of this scheme is:
1. be equipped with first processing portion, can carry out the primary screen to sewage, prevent that large-scale debris from adhering to on filtering medium, influence the filter effect, and can make sewage evenly distributed in the rose box, each department filtering medium homoenergetic evenly filters sewage, makes to filter and reaches the best effect, extension filtering medium's live time.
2. Be equipped with third processing portion, can filter the water purification once more, and can prevent that filter medium from blockking up filter equipment, polluting the purification tank along with the water purification flows.
3. First processing portion, second processing portion and third processing portion are all can dismantle the connection, and the maintenance is dismantled conveniently, has shortened the time and the cost of maintenance cost greatly, reduces work load.
Further, the second filter layer comprises a filter net box, a filter net cover is arranged on the filter net box, and a filter medium is arranged in the filter net box.
The filter medium is arranged in the filter net cage, and the filter net cover is arranged on the filter medium, so that the filter medium can be completely coated and limited, the filter medium is effectively prevented from leaking, the phenomenon of disordered layers in the backwashing process can be prevented, and the filtering quality is ensured.
Further, the third filter layer comprises filter cotton and at least two layers of filter plates, and the filter cotton is arranged between the filter plates.
The filter cotton has smaller pores, so that fine particles, suspended matters and the like in the filter medium and the purified water passing through the filter cotton can be effectively intercepted; the filter can be fixed with filtering the cotton, prevents to filter the cotton and takes place the displacement when the back flush, influences the filter effect.
Further, the first filtering layer comprises a filtering sieve plate.
The filtering sieve plate can effectively filter impurities such as macroalgae, suspended matters, larger gravels and the like in the sewage, and the impurities are prevented from flowing into the second filtering layer along with the sewage and attaching to the filtering medium to influence the filtering effect.
Furthermore, a plurality of through holes are uniformly distributed on the drainage plate.
Evenly distributed has a plurality of through-hole on the drainage board can evenly drain sewage, makes sewage evenly distributed to rose box everywhere, can carry out the colating to sewage again, and subsequent filter layer of better protection prolongs the life of filter layer, improves the filter effect.
Furthermore, a water inlet is formed in a filter screen cover of the second filter layer, and a water outlet is formed in one side, far away from the water inlet, of the filter net box.
The second filter layer is provided with a water inlet and a water outlet, and the water inlet is far away from the water outlet, so that sewage enters the second filter layer from the water inlet, fully contacts with the filter medium and then flows out from the water outlet, the filtering time is prolonged, the filtering effect is enhanced, and the device is suitable for sewage treatment with small filtered water amount, small sewage treatment projects, dispersible sewage treatment projects, high particle content in sewage and the like.
Furthermore, a plurality of through holes are uniformly distributed on the filter plate.
Evenly distributed has a plurality of through-hole on the filter can accelerate rivers to pass through, and makes rivers pass through at the uniform velocity, improves the filter effect.
Furthermore, a back-washing air inlet pipe, a back-washing water inlet pipe and a back-washing water outlet pipe are communicated with the filter box.
The back-flushing air inlet pipe can be scrubbed by using air, has strong flushing force, reduces the water consumption for flushing, shortens the flushing time, and can introduce air when the flushing function is not used, thereby preventing the hardening of the filtering layer and improving the filtering effect; the backwashing water inlet pipe can provide concentrated water for backwashing, so that the utilization rate and the flushing effect of the water are improved, and the service time of the filter layer is prolonged; the back flush outlet pipe can discharge all the sewage after the washing, and the subsequent use and the effect of the filtering device are not influenced.
Furthermore, sealing layers are arranged at the joints of the first processing part, the second processing part and the third processing part.
The sealing layer can increase sealed effect, guarantees the better use of filter equipment.
Drawings
FIG. 1 is a front view of an embodiment 1 of the multi-media filtering device for sewage treatment;
FIG. 2 is a front sectional view of the embodiment 1 of the multi-media filtering device for sewage treatment;
FIG. 3 is an enlarged view of filter layer two of FIG. 2;
FIG. 4 is an enlarged view of filter layer three of FIG. 2;
fig. 5 is a front sectional view of a second filter layer in embodiment 2 of the multimedia filter device for sewage treatment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the sewage treatment device comprises a filter box 1, a first treatment part 11, a sewage inlet pipe 111, a drainage plate 112, a first filter layer 113, a second treatment part 12, a second filter layer 121, a filter net cage 1211, a filter medium 1212, a filter net cover 1213, a water inlet 1214, a water outlet 1215, a third treatment part 13, a third filter layer 131, a filter plate 1311, filter cotton 1312, a purified water outlet pipe 132, a backwashing air inlet pipe 14, a backwashing water inlet pipe 15 and a backwashing water outlet pipe 16.
Example 1
As shown in fig. 1 to 4, the multimedia filtering apparatus for sewage treatment includes a filtering box 1, wherein the filtering box 1 may be semi-buried or buried underground, or a base may be welded to a lower portion of the filtering box 1 and placed on the ground through the base. The filter box 1 comprises a first processing part 11, a second processing part 12 and a third processing part 13 from top to bottom, wherein the first processing part 11, the second processing part 12 and the third processing part 13 are connected through threads, and the filter device is convenient to disassemble and maintain. For the leakproofness of increase device, reach better result of use, the junction of first processing portion 11, second processing portion 12 and third processing portion 13 all is overlapped and is equipped with the sealing layer, installs fastening flange outside the sealing layer.
The upper part of the first processing part 11 is embedded and communicated with a sewage inlet pipe 111 and a back flush outlet pipe 16, and fastening flanges are arranged at the connection parts of the sewage inlet pipe and the back flush outlet pipe. Install a plurality of drainage plates 112 through buckle and bolt on the rose box 1 of inlet tube 111 below, the dense through-hole that distributes on the drainage plate 112, drainage plate 112 can make sewage evenly distributed in rose box 1, can intercept the filtration again to the alga piece in the sewage, great suspended solid etc.. The lower part of the first processing part 11 is provided with a first filter layer 113 through a buckle and a bolt, in the embodiment, the first filter layer 113 is specifically a filter sieve plate, and further intercepts and filters algae lumps, large suspended matters and the like in the sewage.
A plurality of second filter layers 121 are arranged in the second processing portion 12, the second filter layers 121 are sequentially arranged from top to bottom, the second filter layers 121 and the second processing portion 12 can be in threaded connection or can be directly stacked, and the second filter layer 121 at the lowest position is fixedly connected with the second processing portion 12 through bolts. The second filter layer 121 comprises a filter net cage 1211, a filter medium 1212 is paved in the filter net cage 1211, and a filter net cover 1213 is installed at the upper edge of the filter net cage 1211 through bolts, so that the filter medium 1212 is wrapped, the phenomenon of flushing away by sewage or backwashing disordering layers is avoided, and the filter effect is ensured. The filter net box 1211 and the filter net cover 1213 are both net structures, so that the filtering effect of the device is improved.
The filter medium 1212 is composed of large particle filter material and small particle filter material, and the particle size of the filter medium 1212 in each filter layer two 121 is smaller and smaller from top to bottom. In the embodiment, the second filter layer is divided into 4 layers, the filter medium 1212 in the second first filter layer 121 is an anthracite filter material, and high-quality anthracite is used as a raw material and is processed by processes of fine selection, crushing, material sieving and the like; the filter medium 1212 in the second filter layer 121 is a quartz sand layer, and the arrangement density and particles of the quartz sand are smaller than those of anthracite particles; the filter medium 1212 in the second filter layer 121 is a magnetite layer, and the arrangement density and particles of the magnetite layer are smaller than those of the quartz sand layer; the filter medium 1212 in the second filter layer 121 is an activated carbon layer, the arrangement density and particles of the activated carbon layer are smaller than those of the magnetite layer, the activated carbon has many internal pores, large specific surface area and strong adsorption capacity, and is convenient for adsorbing organic impurities in the sewage into the activated carbon particles and removing peculiar smell, colloid, chloride and the like in the water.
Through the filtering action of four layers of filter media 1212, bigger granule is got rid of at the top layer in the sewage, and less granule is got rid of in great depths, and filter media 1212 of each layer is according to filtering degree closely arranged for the particle has more chances and filter media 1212 collision in the sewage, and the floc in the sewage, suspended solid and filter media 1212 surface mutual adhesion make the impurity in the sewage be detained respectively in each filter layer two 121 according to big or small degree, thereby make sewage obtain purifying.
When the device is used, the device can be adjusted according to actual conditions such as the water quality of sewage to be treated, daily sewage discharge amount, equipment arrangement place and the like, the layer number of the second filter layer 121 is changed, the type, the use amount and the arrangement mode of the filter medium 1212 are changed, the installation mode of the filter net box 1211 is changed, the second filter layer 121 and the second treatment part 12 are flexibly assembled, and the optimal filtering effect is achieved.
The third filter layer 131 is installed on the upper portion of the third treatment portion 13 through bolts and buckles, the third filter layer 131 comprises a filter plate 1311 and filter cotton 1312, the filter cotton 1312 is placed between the two filter plates 1311 and is paved and fixed by the filter plates 1311, and a better filtering effect can be achieved. The filter plate 1311 is densely provided with through holes, which not only facilitates the filtration of purified water, but also plays a role in filtration. The lower part of the third processing part 13 is embedded and communicated with a purified water outlet pipe 132, a backwashing air inlet pipe 14 and a backwashing water inlet pipe 15, and fastening flanges are arranged at the connection parts of the purified water outlet pipe, the backwashing air inlet pipe 14 and the backwashing water inlet pipe 15.
The specific implementation process is as follows:
when sewage is required to be filtered, the sewage is discharged into the filter box 1 from the sewage inlet pipe 111, the drainage plate 112 enables the sewage to be uniformly dispersed onto the first filtering layer 113, and meanwhile, the drainage plate 112 and the first filtering layer 113 perform rough filtration on the sewage, so that algae lumps, large suspended matters and the like in the sewage are intercepted and filtered. The sewage enters the second treatment part 12 after being pretreated by the first treatment part 11, and impurities in the sewage are respectively retained in the second filter layers 121 according to the size under the filtering action of the second filter layers 121 to become purified water. The purified water passes through the third filter layer 131 of the third treatment part 13 and is filtered again, and meanwhile, the fine filter media 1212 flowing down along with the purified water is intercepted, and the purified water flows out from the purified water outlet pipe 132.
When the filter medium 1212 needs to be backwashed, the backwashing air inlet pipe 14, the backwashing water inlet pipe 15 and the backwashing water outlet pipe 16 are opened, the filter medium 1212 is scrubbed by using strong air pressure, impurities attached to the filter medium 1212 are eluted from the filter medium 1212, the filter medium 1212 is cleaned by using concentrated water, the cleaned sewage flows out from the backwashing water outlet pipe 16, the filter medium 1212 recovers a good filtering effect after being flushed, and the subsequent requirement on turbidity can be met for a long time.
After the filter medium 1212 is used for a period of time, the backwashing air inlet pipe 14 is opened, aeration treatment is performed on the filter medium 1212, so that the phenomena of hardening, agglomeration, flocculation with impurities and the like of the filter medium 1212 can be effectively prevented, the dispersion degree of the filter medium 1212 can be improved, and the filtering effect is further improved.
Example 2
As shown in fig. 5, the multi-media filtering apparatus for sewage treatment in embodiment 2 is different from embodiment 1 in that the structure of the second filtering layer 121 is different, the filtering net case 1211 and the filtering net cover 1213 are both made of water-impermeable plates, a net-shaped water inlet 1214 is formed at the left side of the filtering net cover 1213, and a net-shaped water outlet 1215 is formed at the right side of the bottom surface of the filtering net 1211, so that sewage enters from the water inlet 1214 on the filtering net cover 1213 and flows out from the water outlet 1215 of the filtering net case 1211 to fully contact with the filtering medium 1212 for a long time during filtering, thereby achieving better filtering effect. The scheme is particularly suitable for sewage treatment projects such as small filtered water amount, small sewage treatment projects, dispersible sewage treatment projects and high particle content in sewage, and can effectively reduce indexes such as CODcr and SS in sewage.
The rest of the structure and the operation principle of the embodiment 2 are the same as those of the embodiment 1.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, such as changing the connection relationship between the second filter layer and the second processing portion, changing the installation positions of the water inlet pipe and the water outlet pipe, etc., which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. Multi-media filter equipment for sewage treatment includes rose box, its characterized in that: the filter box comprises a first treatment part, a second treatment part and a third treatment part, the first treatment part is communicated with a sewage inlet pipe, one side of the first treatment part, which is close to the sewage inlet pipe, is provided with a drainage plate, and one side of the first treatment part, which is far away from the sewage inlet pipe, is provided with a first filter layer; two ends of the second treatment part are respectively detachably connected with the first treatment part and the third treatment part, the second treatment part is provided with a plurality of detachable second filter layers, and filter media are uniformly distributed in the second filter layers; and a detachable filter layer III is arranged in the third treatment part, and one side of the third treatment part, which is far away from the filter layer III, is communicated with a purified water outlet pipe.
2. The multi-media filtration device for sewage treatment as recited in claim 1, wherein: the second filter layer comprises a filter net box, a filter net cover is arranged on the filter net box, and a filter medium is arranged in the filter net box.
3. The multi-media filtration device for sewage treatment as recited in claim 2, wherein: the third filter layer comprises filter cotton and at least two layers of filter plates, and the filter cotton is arranged between the filter plates.
4. The multi-media filtration device for sewage treatment as recited in claim 1, wherein: the first filter layer comprises a filter sieve plate.
5. The multi-media filtration device for sewage treatment as recited in claim 1, wherein: a plurality of through holes are uniformly distributed on the drainage plate.
6. The multi-media filtration device for sewage treatment as recited in claim 2, wherein: a water inlet is formed in the filter screen cover of the second filter layer, and a water outlet is formed in one side, far away from the water inlet, of the filter net box.
7. The multi-media filtration device for sewage treatment as recited in claim 3, wherein: a plurality of through holes are uniformly distributed on the filter plate.
8. The multi-media filtration device for sewage treatment as recited in claim 1, wherein: and the filter box is communicated with a backwashing air inlet pipe, a backwashing water inlet pipe and a backwashing water outlet pipe.
9. The multi-media filtration device for sewage treatment as recited in claim 1, wherein: and sealing layers are arranged at the joints of the first processing part, the second processing part and the third processing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350248.0U CN214158830U (en) | 2020-12-31 | 2020-12-31 | Multi-medium filtering device for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350248.0U CN214158830U (en) | 2020-12-31 | 2020-12-31 | Multi-medium filtering device for sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214158830U true CN214158830U (en) | 2021-09-10 |
Family
ID=77593086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023350248.0U Active CN214158830U (en) | 2020-12-31 | 2020-12-31 | Multi-medium filtering device for sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214158830U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798280A (en) * | 2021-10-29 | 2021-12-17 | 上海春日机械工业有限公司 | Metal part forming equipment |
| CN115594356A (en) * | 2022-11-03 | 2023-01-13 | 邹城市畜牧兽医事业发展中心（Cn） | Livestock-raising sewage circulating treatment system |
| CN117486283A (en) * | 2023-12-28 | 2024-02-02 | 胜利油田东强设备安装工程有限责任公司 | Super-large water quantity high-efficiency filtering device |
-
2020
- 2020-12-31 CN CN202023350248.0U patent/CN214158830U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798280A (en) * | 2021-10-29 | 2021-12-17 | 上海春日机械工业有限公司 | Metal part forming equipment |
| CN115594356A (en) * | 2022-11-03 | 2023-01-13 | 邹城市畜牧兽医事业发展中心（Cn） | Livestock-raising sewage circulating treatment system |
| CN115594356B (en) * | 2022-11-03 | 2024-04-26 | 邹城市畜牧兽医事业发展中心 | Livestock-raising sewage circulating treatment system |
| CN117486283A (en) * | 2023-12-28 | 2024-02-02 | 胜利油田东强设备安装工程有限责任公司 | Super-large water quantity high-efficiency filtering device |
| CN117486283B (en) * | 2023-12-28 | 2024-04-09 | 胜利油田东强设备安装工程有限责任公司 | Super-large water quantity high-efficiency filtering device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214158830U (en) | Multi-medium filtering device for sewage treatment | |
| WO2018103537A1 (en) | Horizontal-flow sand filtration pool and water treatment process thereof | |
| CN110143730B (en) | Sewage treatment device capable of treating particulate matters through multistage grading and layering | |
| CN115340174A (en) | Loss prevention device for filter material of biological filter | |
| CN202169115U (en) | Efficient and energy-saving mine sewage treatment system | |
| CN202379848U (en) | Recycled paper waste water treatment system | |
| CN207361975U (en) | A kind of sanitary sewage multi-stage treatment units | |
| CN111877501B (en) | Sponge city rainwater shunting discharging equipment | |
| CN201990522U (en) | U-shaped flow aeration micro-electrolysis device | |
| CN201292297Y (en) | Integral water purifier | |
| Van Nieuwenhuijzen et al. | Direct influent filtration as a pretreatment step for more sustainable wastewater treatment systems | |
| CN105712582A (en) | Reverse-size deep bed filter pool applied to sewage treatment plant upgrading and reconstruction | |
| CN206570149U (en) | A kind of industrial waste water disposal device being easily installed | |
| CN216005450U (en) | Continuous filter integrating coagulation, filtration and precipitation | |
| CN104984572A (en) | Efficient active flowing bed purifier | |
| CN205953569U (en) | Sewage purification processing device | |
| CN213475695U (en) | Anti-blocking up-flow vertical subsurface flow constructed wetland purification unit | |
| CN108423862A (en) | A kind of movable type automatically cleaning sewage-treatment plant | |
| CN209872600U (en) | Backwashing water purifier | |
| CN211813725U (en) | Waste water treatment device | |
| CN203382619U (en) | Sewage-land biological filtration and precipitation system for removing suspended solids and organic matters from sewage | |
| CN208031996U (en) | Adverse current sand filter | |
| CN206955827U (en) | A kind of high-efficiency double-layer filter material filter pool | |
| CN218321049U (en) | Novel biochemical industry filter-tank for waste water | |
| KR20040070365A (en) | General clean water equipment for Small water supplies |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221017 Address after: Room 2301, Unit 1, 23rd Floor, Building A, Shuiqingmuhua Boutique Community, No. 66, Nanhu South Road, Shuimogou District, Urumqi, 830000 Xinjiang Uygur Autonomous Region Patentee after: Xinjiang Shengshi Goldman Sachs Environmental Engineering Technology Co.,Ltd. Address before: Room 9, District 1, 8 / F, building 2, qinjun, No. 499, Weixing Road, economic and Technological Development Zone, Urumqi, Xinjiang Uygur Autonomous Region Patentee before: XINJIANG QIANGDA KAICHUANG INFORMATION TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |