CN217809104U - Sewage treatment biological filter - Google Patents
Sewage treatment biological filter Download PDFInfo
- Publication number
- CN217809104U CN217809104U CN202123255726.4U CN202123255726U CN217809104U CN 217809104 U CN217809104 U CN 217809104U CN 202123255726 U CN202123255726 U CN 202123255726U CN 217809104 U CN217809104 U CN 217809104U
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- Prior art keywords
- pipe
- filter screen
- swing
- sewage treatment
- water outlet
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- 239000010865 sewage Substances 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 210000005056 cell body Anatomy 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 35
- 239000002184 metal Substances 0.000 description 35
- 239000003973 paint Substances 0.000 description 13
- 238000005507 spraying Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 239000002912 waste gas Substances 0.000 description 7
- 229910000639 Spring steel Inorganic materials 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The application discloses sewage treatment biofilter, including cell body, supporting legs, blow off pipe, first valve, drain pipe, second valve, fixing base, mount, swing pipe, hose, outlet pipe, seal closure, adapter sleeve, first filter screen, mix filter bed, grid, second filter screen, support column, servo motor and play basin. The beneficial effect of this application lies in that whole filtration's top has set up swing watering mechanism, can carry out even watering for filtration's top through swing watering mechanism, is convenient for filter the face of intaking and carries out even intaking, can wash for the top provides simultaneously, reduces the emergence of the jam condition, and holistic result of use is better.
Description
Technical Field
The application relates to the field of sewage treatment, in particular to a sewage treatment biofilter.
Background
Sewage treatment is a process of purifying sewage to meet the requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.
When the existing sewage treatment biofilter is used for filtering sewage, uniform water supply on a filtering surface is not easy to carry out, uniform washing on the surface is not easy to provide, and the using effect is not good. Therefore, a sewage treatment biofilter is provided to solve the above problems.
Disclosure of Invention
The embodiment provides a sewage treatment biofilter used for solving the problem that the filtering surface in the prior art is lack of uniform water supply and washing.
According to one aspect of the application, a sewage treatment biofilter is provided, which comprises a pool body and a swinging sprinkling mechanism arranged at the top of the pool body, wherein a water outlet pipe is fixedly arranged at the bottom of the swinging sprinkling mechanism, a water outlet groove is formed in the bottom surface of the water outlet pipe along the length direction, a first filter screen is arranged at the bottom of the water outlet pipe, the first filter screen is of an arc-shaped structure, the peripheral edge of the first filter screen is fixedly connected with the inner wall of the pool body, a mixed filter material layer, a second filter screen and a grid are sequentially arranged at the bottom of the first filter screen from top to bottom, a support column is fixedly connected at the bottom of the grid, and the bottom of the support column is fixedly connected with the inner wall at the bottom of the pool body;
form the die cavity between the bottom of grid and the inner wall of cell body, the blow off pipe is installed in the bottom intercommunication of die cavity, the bottom fixed connection of blow off pipe and cell body, the terminal fixed mounting of blow off pipe has first valve, one side fixedly connected with drain pipe of cell body, the terminal fixed mounting of drain pipe has the second valve, the tip of drain pipe and one side top intercommunication of die cavity.
Furthermore, supporting legs are fixedly connected to four corners of the bottom of the tank body and are rectangular block-shaped structures.
Furthermore, the swing sprinkling mechanism comprises a fixed seat and a servo motor fixedly installed on the back face of the fixed seat, the output shaft end of the servo motor is fixedly connected with the back face of the top end of the swing pipe, and the bottom end of the swing pipe is fixedly communicated with the center of the top of the water outlet pipe.
Further, the both sides of fixing base all fixedly connected with mount, the mount is the U type rod-shaped structure of invering, the bottom of mount and the top fixed connection of cell body.
Further, the top fixed intercommunication of swing pipe installs the hose, the fixed adapter sleeve that has cup jointed in the end of hose, adapter sleeve fixed mounting has the top of fixing base.
Furthermore, both ends of the water outlet pipe are provided with sealing covers, and the sealing covers are welded with the end parts of the water outlet pipe in a seamless mode.
Through the above-mentioned embodiment of this application, it has set up swing watering mechanism at whole filtration's top, can carry out even watering for filtration's top through swing watering mechanism, is convenient for filter the face of intaking and carries out even intaking, can wash for the top provides simultaneously, reduces the emergence of the jam condition, and holistic result of use is better.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;
FIG. 2 is a schematic view of an internal structure of a tank body according to an embodiment of the present application;
FIG. 3 is a schematic view of a backside structure of a fixing base according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a water outlet pipe according to an embodiment of the present application;
fig. 5 is a schematic cross-sectional structure view of a water outlet pipe according to an embodiment of the present application.
In the figure: 1. a tank body; 2. supporting legs; 3. a blow-off pipe; 4. a first valve; 5. a drain pipe; 6. a second valve; 7. a fixed seat; 8. a fixed mount; 9. a swing pipe; 10. a hose; 11. a water outlet pipe; 12. sealing cover; 13. connecting sleeves; 14. a first filter screen; 15. mixing the filter material layer; 16. a grid; 17. a second filter screen; 18. a support pillar; 19. a servo motor; 20. a water outlet groove.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The biological sewage treatment filter in the present embodiment may employ various filter screens for filtration, for example, the following metal filter screen structure is provided in the present embodiment, and the biological sewage treatment filter in the present embodiment may employ the following filter screens for filtration.
A metal filter screen structure comprises a metal filter screen layer. The paint spraying waste gas generated in the paint spraying process contains suspended particulate matters, aromatic compounds, benzene, toluene, xylene, formaldehyde and other Volatile Organic Compounds (VOC), and the waste gas not only pollutes the atmospheric environment, but also causes harm to human bodies, so the paint spraying waste gas is treated by using a paint spraying filter box. The metal filter screen can be used for a paint spraying filter box to treat paint spraying waste gas generated in the paint spraying process. The metal filter screen layer can adsorb solid or liquid suspended particulate matters in the painting waste gas. The metal filter screen layer comprises a plurality of metal filter screens with the thickness of mm, and the cross sections of the metal filter screens are triangular. The metal filter screen layer is formed by stacking metal filter screens, and the thickness of the metal filter screen layer can reach cm after stacking. The metal filter screen layer is a multi-layer aluminum pull screen, because of a multi-layer filtering structure, the filtering area is increased, and the metal filter screen can be repeatedly cleaned, so that the economy is high. The triangular metal filter screen cuts and shunts the paint mist, so that the paint mist flows more uniformly, the contact area between the metal filter screen and the paint spraying waste gas is increased, and the metal filter screen layer adsorbs more paint spraying waste gas. In this embodiment, the metal filter screen layer is divided into four filter screen units, and a frame is arranged outside each filter screen unit, and the frame is a rectangular frame. The bottom surface midpoint of the frame is provided with a first lug, the cross section of the first lug is trapezoidal, and the width of the first lug is equal to that of the frame. The top surface of the frame is provided with a first groove, the first groove penetrates through the front surface and the rear surface of the frame, and the first groove can be matched with the first bump in a clamping and embedding manner. After adsorbing more coating cloud granule on the metal filter screen layer, through first lug of separation and first recess, can become a plurality of filter unit with the split of metal filter screen layer, make things convenient for the staff to dismantle down metal filter screen layer and wash. The bottom surface of the first bump is embedded with a spring steel ball, and the bottom wall of the first groove is provided with a clamping groove for clamping and embedding the spring steel ball. The metal filter screen layer is required to maintain the stability of the installation connection when working in a paint spraying filter box. The steel balls are clamped and embedded into the clamping grooves through springs, so that the movement of the two filter screen units which are adjacent to each other up and down in the horizontal direction is limited; the first protruding block is arranged to be trapezoidal, and movement of the two adjacent filter screen units in the vertical direction is limited. After the metal filter screen needs to be replaced after being used for a period of time, the horizontal tension is applied to the filter screen unit, the spring steel balls roll back after being subjected to outward extrusion force deviating from the clamping grooves, the spring steel balls slowly slide out of the clamping grooves, the first protruding blocks are separated from the first grooves, and the metal filter screen layer is convenient to disassemble by an operator. The left side of frame is provided with the second lug, and the second lug is crescent and width and the width of frame equals. The right side of frame is provided with the second recess, and the second recess runs through the frame front and back face. The second groove can be matched with the second bump in a clamping and embedding way. After adsorbing more coating cloud granule on the metal filter screen layer, through separation second lug and second recess, can become a plurality of filter unit with metal filter screen layer split, make things convenient for the staff to dismantle down metal filter screen layer and wash. The edge of the crescent second bump has smooth radian, so that the metal filter screen is not easy to collide and damage in the transportation process. The second recess in-connection has magnetism to inhale the piece, is connected with on the second lug side and adsorbs the piece. In this embodiment, the magnetic member is a magnet and the adsorbing member is an iron sheet. The metal filter screen layer is required to maintain the stability of the installation connection when working in a paint spraying filter box. The magnetic attraction piece and the adsorption piece attract each other magnetically, so that the left and right adjacent filter screen units are connected tightly. After adsorbing more coating cloud granule on the metal filter screen layer, thereby the staff need overcome the appeal of magnetism piece and absorption piece and separate second lug and second recess, with metal filter screen layer split into a plurality of filter unit, makes things convenient for the staff to dismantle down metal filter screen layer and washs. The working principle is as follows: when the metal filter screen needs to be replaced after being used for a period of time, the horizontal tension is applied to the filter screen unit, the attraction force between the magnetic suction piece and the adsorption piece is overcome, so that the second convex block and the second groove are separated, meanwhile, the spring steel ball retreats after being subjected to outward extrusion force deviating from the clamping groove, the spring steel ball slowly slides out of the clamping groove, the first convex block is also separated from the first groove, and the metal filter screen layer is convenient for operators to detach.
The metal filter screen structure is a Chinese utility model patent (application number: CN 201821343852.0). Wherein, above-mentioned metal filters structure can be used for the sewage treatment biological filter in this application. The details are not repeated here, and the sewage treatment biofilter according to the embodiment of the present application will be described below.
Referring to fig. 1-5, a biological filter for sewage treatment comprises a tank body 1 and a swing sprinkling mechanism arranged at the top of the tank body 1, wherein a water outlet pipe 11 is fixedly arranged at the bottom of the swing sprinkling mechanism, a water outlet groove 20 is formed in the bottom surface of the water outlet pipe 11 along the length direction, a first filter screen 14 is arranged at the bottom of the water outlet pipe 11, the first filter screen 14 is of an arc structure, the peripheral edge of the first filter screen 14 is fixedly connected with the inner wall of the tank body 1, a mixed filter material layer 15, a second filter screen 17 and a grid 16 are sequentially arranged at the bottom of the first filter screen 14 from top to bottom, a support column 18 is fixedly connected at the bottom of the grid 16, and the bottom of the support column 18 is fixedly connected with the inner wall of the bottom of the tank body 1; form the die cavity between the bottom of grid 16 and the inner wall of cell body 1, blow off pipe 3 is installed in the bottom intercommunication of die cavity, blow off pipe 3 and the bottom fixed connection of cell body 1, the terminal fixed mounting of blow off pipe 3 has first valve 4, one side fixedly connected with drain pipe 5 of cell body 1, the terminal fixed mounting of drain pipe 5 has second valve 6, the tip of drain pipe 5 and one side top intercommunication of die cavity.
The bottom four corners department of cell body 1 all fixedly connected with supporting legs 2, supporting legs 2 are rectangle massive structure for holistic support.
The swinging sprinkling mechanism comprises a fixed seat 7 and a servo motor 19 fixedly arranged on the back of the fixed seat 7, the output shaft end of the servo motor 19 is fixedly connected with the back of the top end of a swinging pipe 9, and the bottom end of the swinging pipe 9 is fixedly communicated with the center of the top of a water outlet pipe 11; the two sides of the fixed seat 7 are fixedly connected with fixed frames 8, the fixed frames 8 are of inverted U-shaped rod structures, and the bottom ends of the fixed frames 8 are fixedly connected with the top of the tank body 1; the fixed intercommunication in top of swing pipe 9 installs hose 10, the fixed adapter sleeve 13 that has cup jointed in the end of hose 10, adapter sleeve 13 fixed mounting has the top of fixing base 7, can swing and drive, can carry out first filter screen 14 cleanness.
And sealing covers 12 are arranged at two ends of the water outlet pipe 11, and the sealing covers 12 are welded with the end parts of the water outlet pipe 11 in a seamless mode to seal the two ends.
The using method comprises the following steps: when the whole biological sewage treatment filter is used, water is supplied by an external water supply device and is connected with the connecting sleeve 13, the water supply device drives sewage to enter the connecting sleeve 13, enter the hose 10, further enter the swing pipe 9 and then enter the water outlet pipe 11, and the sewage is sprayed out through the water outlet groove 20 and is directly sprayed on the first filter screen 14, the servo motor 19 drives the swing pipe 9 to rotate, so that the water outlet pipe 11 is driven to move along the surface of the first filter screen 14, the surface of the first filter screen 14 can be uniformly washed, the blockage is avoided, simultaneously, the sprayed water can be uniformly provided for the surface of the first filter screen 14, the sewage enters the bottom cavity through the grids 16 after being filtered by the first filter screen 14, the mixed filter material layer 15 and the second filter screen 17, and the filtering is finished;
the second valve 6 is connected with an external water pumping device to pump water, and the filtered water is discharged through the drain pipe 5 and the second valve 6 to realize water drainage.
The application has the advantages that: whole sewage treatment biofilter has set up swing watering mechanism at whole filtration's top, can carry out even watering for filtration's top through swing watering mechanism, is convenient for filter the face of intaking and carries out even intaking, can wash for the top provides simultaneously, reduces the emergence of the jam condition, and holistic result of use is better.
It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (6)
1. A sewage treatment biological filter is characterized in that: the water-saving type water-saving device comprises a pool body (1) and a swing water-sprinkling mechanism arranged at the top of the pool body (1), wherein a water outlet pipe (11) is fixedly arranged at the bottom of the swing water-sprinkling mechanism, a water outlet groove (20) is formed in the bottom surface of the water outlet pipe (11) along the length direction, a first filter screen (14) is arranged at the bottom of the water outlet pipe (11), the first filter screen (14) is of an arc-shaped structure, the peripheral edge of the first filter screen (14) is fixedly connected with the inner wall of the pool body (1), a mixed filter material layer (15), a second filter screen (17) and a grating (16) are sequentially arranged at the bottom of the first filter screen (14) from top to bottom, a support column (18) is fixedly connected with the bottom of the grating (16), and the bottom of the support column (18) is fixedly connected with the inner wall of the bottom of the pool body (1);
form the die cavity between the bottom of grid (16) and the inner wall of cell body (1), blow off pipe (3) are installed to the bottom intercommunication of die cavity, the bottom fixed connection of blow off pipe (3) and cell body (1), the terminal fixed mounting of blow off pipe (3) has first valve (4), one side fixedly connected with drain pipe (5) of cell body (1), the terminal fixed mounting of drain pipe (5) has second valve (6), the tip of drain pipe (5) and one side top intercommunication of die cavity.
2. A biological filter for sewage treatment according to claim 1, wherein: the pool body is characterized in that supporting legs (2) are fixedly connected to four corners of the bottom of the pool body (1), and the supporting legs (2) are of rectangular block structures.
3. A biological filter for sewage treatment according to claim 1, wherein: the swing sprinkling mechanism comprises a fixing seat (7) and a servo motor (19) fixedly installed on the back face of the fixing seat (7), the output shaft end of the servo motor (19) is fixedly connected with the back face of the top end of a swing pipe (9), and the bottom end of the swing pipe (9) is fixedly communicated with the center of the top of a water outlet pipe (11).
4. A biological filter for sewage treatment according to claim 3 wherein: the equal fixedly connected with mount (8) in both sides of fixing base (7), mount (8) are the U type rod-shaped structure of invering, the bottom of mount (8) and the top fixed connection of cell body (1).
5. A biological filter for sewage treatment according to claim 3 wherein: the utility model discloses a swing pipe, including swing pipe (9), hose (10) are installed to the top fixed intercommunication of swing pipe (9), the fixed cover in end of hose (10) has connect adapter sleeve (13), adapter sleeve (13) fixed mounting has the top of fixing base (7).
6. A biological filter for sewage treatment according to claim 1, wherein: and sealing covers (12) are arranged at two ends of the water outlet pipe (11), and the sealing covers (12) are welded with the end parts of the water outlet pipe (11) in a seamless mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123255726.4U CN217809104U (en) | 2021-12-21 | 2021-12-21 | Sewage treatment biological filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123255726.4U CN217809104U (en) | 2021-12-21 | 2021-12-21 | Sewage treatment biological filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217809104U true CN217809104U (en) | 2022-11-15 |
Family
ID=83957913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123255726.4U Active CN217809104U (en) | 2021-12-21 | 2021-12-21 | Sewage treatment biological filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217809104U (en) |
-
2021
- 2021-12-21 CN CN202123255726.4U patent/CN217809104U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 537100 Guohong Zhihong factory area, qintang Industrial Park, Guigang City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Guohong Zhihong Environmental Protection Technology Group Co.,Ltd. Address before: 537100 Guohong Zhihong factory area, qintang Industrial Park, Guigang City, Guangxi Zhuang Autonomous Region Patentee before: Guangxi Guohong Zhihong Environmental Protection Technology Group Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangxi Guohong Zhihong Water Service Co.,Ltd. Assignor: Guangxi Guohong Zhihong Environmental Protection Technology Group Co.,Ltd. Contract record no.: X2023980048970 Denomination of utility model: A sewage treatment biofilter Granted publication date: 20221115 License type: Common License Record date: 20231129 |
|
| EE01 | Entry into force of recordation of patent licensing contract |