CN217148850U - Building engineering's integration sewage purification treatment device - Google Patents

Building engineering's integration sewage purification treatment device Download PDF

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Publication number
CN217148850U
CN217148850U CN202122275519.9U CN202122275519U CN217148850U CN 217148850 U CN217148850 U CN 217148850U CN 202122275519 U CN202122275519 U CN 202122275519U CN 217148850 U CN217148850 U CN 217148850U
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shell
sewage
casing
building engineering
purification treatment
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CN202122275519.9U
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白雪峰
王继光
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Guangxi Tianchen Construction Engineering Co ltd
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Guangxi Tianchen Construction Engineering Co ltd
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Abstract

The utility model discloses a building engineering's integration sewage purification unit, including bottom plate, casing, ozone jar, dirty case, bin, motor, (mixing) shaft, baffle, dirt guide pipe, filter screen two, active carbon adsorption layer, disinfection room and observation window door, the top of bottom plate is equipped with the casing, the bottom of casing is equipped with the delivery port that runs through the bottom plate, and is equipped with control valve one on the delivery port, the both sides of casing all are equipped with the drain, and the front of casing is equipped with control valve two, one side bottom of casing is equipped with the mount, and the inside of mount is equipped with the ozone jar. The utility model discloses an ozone in the ozone jar plays the sterile effect of disinfecting, reduces the germ in the sewage, plays the absorbent effect of filtration through filter screen two and active carbon adsorption layer, carries out secondary germicidal treatment through sterilamp to sewage, uses through taking out the pole and the cooperation of separation block, handle, and the impurity of deposit in with the device is derived to the atmospheric pressure that produces through the pull.

Description

Building engineering's integration sewage purification treatment device
Technical Field
The utility model relates to a sewage purification treatment device technical field specifically is a building engineering's integration sewage purification treatment device.
Background
The building engineering refers to an engineering entity formed by the construction of various building constructions and their auxiliary facilities and the installation of lines, pipelines and equipment matched with them. Can produce a large amount of sewage in building engineering's the construction, these sewage direct discharge can cause the pollution to the surrounding environment, and can cause the waste of water resource, consequently need a building engineering's integrated sewage purification treatment device to carry out purification treatment to sewage to reach pollution abatement and water waste's problem, but there are certain problem and defect in current building engineering's integrated sewage purification treatment device:
1. the existing integrated sewage purification treatment device for the construction engineering has poor purification treatment effect, and because the sewage pollution of the construction engineering is heavy, more impurities and germs still exist in the purified water, so that the discharged sewage still has pollution problems and is inconvenient to use;
2. the existing integrated sewage purification treatment device for construction engineering is inconvenient for cleaning impurities precipitated in the device, secondary pollution of water is easily caused under the condition of excessive accumulation due to untimely cleaning of the impurities, the service life of the device is easily influenced, and the device is inconvenient to use;
3. the existing integrated sewage purification treatment device for the constructional engineering has poor precipitation effect, and because more impurities exist in the constructional engineering sewage, the sedimentation needs longer time, the sewage treatment progress is easily delayed, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a building engineering's integration sewage purification unit to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an integrated sewage purification treatment device for constructional engineering comprises a bottom plate, a shell, an ozone tank, a sewage collection tank, a storage tank, a motor, a stirring shaft, a partition plate, a sewage guide pipe, a filter screen II, an activated carbon adsorption layer, a disinfection chamber and an observation window door, wherein the top of the bottom plate is provided with the shell, the bottom of the shell is provided with a water outlet penetrating through the bottom plate, the water outlet is provided with a control valve I, the two sides of the shell are provided with sewage discharge ports, the front of the shell is provided with a control valve II, the bottom end of one side of the shell is provided with a fixing frame, the inside of the fixing frame is provided with the ozone tank, the top and the bottom of the ozone tank are provided with an oxygen outlet, the bottom of the oxygen outlet is provided with a barometer, one side of the oxygen outlet is provided with an oxygen guide pipe penetrating through one side of the shell, the sewage collection tank is arranged above the ozone tank, the bottom of the sewage collection tank is provided with rolling wheels, the other side of the top of the shell is provided with the storage tank, alum is arranged inside the storage tank, a material guide pipe penetrating through the top of the shell is arranged at the bottom of the storage tank, the top of the shell is provided with a motor, the bottom of the motor is provided with a stirring shaft which penetrates through the top of the shell, stirring blades are uniformly distributed on the stirring shaft, a partition plate is arranged inside the shell, impurity boxes are arranged on two sides of the top of the partition plate, the bottom of the impurity box is provided with a sewage guide pipe which penetrates through the partition plate, a pumping rod is arranged inside the sewage guide pipe, and two ends of the drawing rod are respectively provided with a baffle block and a handle, a second filter screen is arranged below the baffle plate, an active carbon adsorption layer is arranged below the second filter screen, a disinfection chamber is arranged on the bottom surface inside the shell, the inside top surface both sides of disinfection room all are equipped with sterilamp, the top of disinfection room is equipped with down the mouth of a river, the front of casing is equipped with the observation window door, the outside of observation window door is equipped with the sealing washer.
Preferably, supporting legs are arranged on two sides of the bottom plate.
Preferably, a water inlet is formed in one side of the top of the shell.
Preferably, the bottom of the rolling wheel is provided with an installation frame, the installation frame is installed on two sides of the shell, and the installation frame is located below the sewage draining outlet.
Preferably, the two sides of the storage box are provided with support frames, and the top of the storage box is provided with a feeding hole.
Preferably, the front surface of the partition plate is provided with a water outlet, and the top of the water outlet is provided with a first filter screen.
Preferably, a motor casing is arranged outside the motor, and heat dissipation holes are formed in the top of the motor casing.
Compared with the prior art, the beneficial effects of the utility model are that: this building engineering's integrated sewage purification processing apparatus is rational in infrastructure, has following advantage:
1. the utility model discloses an ozone tank that sets up, two and the active carbon adsorption layer of filter screen, sterilamp, through the inside of leading-in casing of oxygen guide tube with the ozone in the ozone tank, thereby play the sterile effect of disinfecting through ozone, reduce the germ in the sewage, pollution abatement, play the effect of filtration adsorption through two and the active carbon adsorption layer of filter screen, impurity to in the sewage filters the interception, adsorb the peculiar smell in the sewage simultaneously, reduce the pollution of sewage, play the purification performance, carry out secondary sterilization through sterilamp to sewage, thereby reduce the pollution of water, and it is comparatively convenient to use.
2. The utility model can collect the impurities discharged from the inner part of the device conveniently through the sewage collecting box, is convenient for collecting and processing in a unified way, reduces pollution, collects the precipitated impurities in the shell through the impurity box, discharges the precipitated impurities through the sewage guide pipe and the sewage discharge port, is convenient for cleaning the inner part of the device, reduces secondary pollution caused by the precipitated impurities at the same time, leads out the impurities by using the pull rod, the barrier block and the handle in a pull-type sewage discharge way, can ensure that the impurities can not overflow by themselves, can ensure that the cleaning in the device is cleaner, can clean and replace the filter screen II and the active carbon adsorption layer in the device through the observation window door, prevents the filter screen II and the active carbon adsorption layer from being invalid for a long time, can be replaced in time, is beneficial to improving the purification effect of the device, and the sealing ring plays a sealing role, prevents the sewage from permeating from the observation window door when purifying the sewage, the use is more convenient.
3. The utility model discloses a alum of depositing in the bin and the (mixing) shaft that runs through the casing top adsorb the impurity granule in the sewage through alum to accelerate the impurity in the sewage to deposit, drive the (mixing) shaft through the motor and rotate, thereby drive stirring fan blade and rotate, accelerate the impurity separation of aquatic through the stirring, thereby improve the speed of deposiing, be favorable to improving the processing progress of sewage, it is comparatively convenient to use.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is an external view of the present invention;
fig. 3 is a top view of the present invention;
fig. 4 is a schematic view of the local structure of the sewage guide pipe of the present invention.
In the figure: 1. a base plate; 101. supporting legs; 2. a housing; 201. a water outlet; 202. a first control valve; 203. a water inlet; 204. a sewage draining outlet; 205. a second control valve; 3. an ozone tank; 301. a fixed mount; 302. an oxygen outlet; 303. a barometer; 304. an oxygen guide tube; 4. a sewage collection tank; 401. a rolling wheel; 402. a mounting frame; 5. a storage tank; 501. alum; 502. a support frame; 503. a feed inlet; 504. a material guide pipe; 6. a motor; 601. a motor housing; 602. heat dissipation holes; 7. a stirring shaft; 701. a stirring fan blade; 8. a partition plate; 801. an impurity box; 802. a water outlet; 803. a first filter screen; 9. a sewage guide pipe; 901. drawing a rod; 902. a barrier block; 903. a grip; 10. a second filter screen; 11. an activated carbon adsorption layer; 12. a sterilization chamber; 1201. an ultraviolet germicidal lamp; 1202. a water outlet; 13. an observation window door; 1301. and (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention provides an embodiment: an integrated sewage purification treatment device for constructional engineering comprises a bottom plate 1, a shell 2, an ozone tank 3, a sewage collection box 4, a storage box 5, a motor 6, a stirring shaft 7, a partition plate 8, a sewage guide pipe 9, a filter screen II 10, an activated carbon adsorption layer 11, a disinfection chamber 12 and an observation window door 13, wherein supporting legs 101 are arranged on two sides of the bottom plate 1, the shell 2 is arranged on the top of the bottom plate 1, a water outlet 201 penetrating through the bottom plate 1 is arranged at the bottom of the shell 2, a control valve I202 is arranged on the water outlet 201, a water inlet 203 is arranged on one side of the top of the shell 2, sewage outlets 204 are arranged on two sides of the shell 2, a control valve II 205 is arranged on the front of the shell 2, a fixing frame 301 is arranged at the bottom end of one side of the shell 2, the ozone tank 3 is arranged inside the fixing frame 301, an oxygen outlet 302 is arranged on the top and the bottom of the ozone tank 3, a barometer 303 is arranged at the bottom of the oxygen outlet 302, an oxygen guide pipe 304 penetrating one side of the shell 2 is arranged on one side of the oxygen outlet 302, a dirt collecting box 4 is arranged above the ozone tank 3, rolling wheels 401 are arranged at the bottom of the dirt collecting box 4, mounting frames 402 are arranged at the bottom of the rolling wheels 401 and are mounted at two sides of the shell 2, the mounting frames 402 are positioned below the sewage outlet 204, a storage box 5 is arranged at the other side of the top of the shell 2, alum 501 is arranged inside the storage box 5, supporting frames 502 are arranged at two sides of the storage box 5, a feeding hole 503 is arranged at the top of the storage box 5, a material guide pipe 504 penetrating the top of the shell 2 is arranged at the bottom of the storage box 5, a motor 6 is arranged at the top of the shell 2, a motor shell 601 is arranged outside the motor 6, heat radiation holes 602 are arranged at the top of the motor shell 601, a stirring shaft 7 penetrating the top of the shell 2 is arranged at the bottom of the motor 6, and stirring blades 701 are uniformly distributed on the stirring shaft 7, the disinfection device is characterized in that a partition plate 8 is arranged inside a shell 2, a water outlet 802 is arranged on the front face of the partition plate 8, a first filter screen 803 is arranged on the top of the water outlet 802, impurity boxes 801 are arranged on two sides of the top of the partition plate 8, a sewage guide pipe 9 penetrating through the partition plate 8 is arranged at the bottom of the impurity boxes 801, a pull rod 901 is arranged inside the sewage guide pipe 9, a blocking block 902 and a handle 903 are arranged at two ends of the pull rod 901 respectively, a second filter screen 10 is arranged below the partition plate 8, an activated carbon adsorption layer 11 is arranged below the second filter screen 10, a disinfection chamber 12 is arranged on the bottom face inside the shell 2, ultraviolet germicidal lamps 1201 are arranged on two sides of the top face inside the disinfection chamber 12, a water outlet 1202 is arranged on the top of the disinfection chamber 12, an observation window door 13 is arranged on the front face of the shell 2, and a sealing ring 1301 is arranged outside the observation window door 13.
Specifically, a fixing frame 301 is arranged at the bottom end of one side of a shell 2, an ozone tank 3 is arranged inside the fixing frame 301, an oxygen outlet 302 is arranged at the top and the bottom of the ozone tank 3, an air pressure gauge 303 is arranged at the bottom of the oxygen outlet 302, an oxygen guide pipe 304 penetrating one side of the shell 2 is arranged at one side of the oxygen outlet 302, a filter screen II 10 is arranged below a partition plate 8, an activated carbon adsorption layer 11 is arranged below the filter screen II 10, a disinfection chamber 12 is arranged at the bottom inside the shell 2, ultraviolet germicidal lamps 1201 are arranged at two sides of the top inside the disinfection chamber 12, ozone in the ozone tank 3 is guided into the shell 2 through the oxygen guide pipe 304, so that the ozone has the functions of sterilization and disinfection, germs in the sewage are reduced, pollution is reduced, the filtering and adsorbing functions are realized through the filter screen II 10 and the activated carbon adsorption layer 11, impurities in the sewage are filtered and intercepted, meanwhile, peculiar smell in the sewage is absorbed, pollution of the sewage is reduced, a purification effect is achieved, secondary sterilization treatment is performed on the sewage through the ultraviolet sterilizing lamp 1201, and therefore pollution of the water is reduced, and the use is convenient;
specifically, the two sides of the shell 2 are provided with the sewage outlets 204, the bottom of the sewage collection box 4 is provided with the rolling wheels 401, the bottom of the rolling wheels 401 is provided with the mounting frame 402, the mounting frame 402 is mounted on the two sides of the shell 2, the mounting frame 402 is positioned below the sewage outlets 204, the bottom of the impurity box 801 is provided with the sewage guide pipe 9 penetrating through the partition plate 8, the inside of the sewage guide pipe 9 is provided with the draw rod 901, the two ends of the draw rod 901 are respectively provided with the blocking block 902 and the handle 903, the front of the shell 2 is provided with the observation window door 13, the outside of the observation window door 13 is provided with the sealing ring 1301, impurities discharged from the inside of the device can be conveniently collected through the sewage collection box 4, the uniform collection and treatment are convenient, the pollution is reduced, the use is convenient, the precipitated impurities are collected in the shell 2 through the impurity box 801, the precipitated impurities are discharged through the sewage guide pipe 9 and the sewage outlets 204, the inside of the device is convenient to clean, meanwhile, the secondary pollution caused by the precipitated impurities is reduced, the use is more convenient, the pull rod 901 is matched with the blocking block 902 and the handle 903 for use, the pull-type pollution discharge mode is adopted, the impurities are led out by the air pressure generated by drawing, thereby not only ensuring that the impurities can not overflow by themselves, but also ensuring that the inside of the device is cleaned more cleanly and the use is more convenient, the second filter screen 10 and the activated carbon adsorption layer 11 in the device can be replaced through the observation window door 13, the second filter screen 10 and the activated carbon adsorption layer 11 are prevented from being used and losing efficacy for a long time, the timely replacement is favorable for improving the purification treatment effect of the device, the use is more convenient, and can conveniently clean the impurities accumulated on the second filter screen 10 and the active carbon adsorption layer 11, the use is more convenient, the sealing ring 1301 plays a role in sealing, so that sewage is prevented from permeating from the observation window door 13 when being purified, and the use is convenient;
it is specific, be equipped with bin 5 through the top opposite side at casing 2, be equipped with alum 501 in the inside of bin 5, bottom at bin 5 is equipped with the passage 504 that runs through casing 2 top, top at casing 2 is equipped with motor 6, bottom at motor 6 is equipped with the (mixing) shaft 7 that runs through casing 2 top, evenly distributed has stirring fan blade 701 on (mixing) shaft 7, send into inside casing 2 with alum 501 through passage 504, adsorb the impurity granule in the sewage through alum 501, thereby accelerate the impurity in the sewage to precipitate, it is comparatively convenient to use, drive (mixing) shaft 7 through motor 6 and rotate, thereby drive stirring fan blade 701 and rotate, accelerate the impurity separation of aquatic through the stirring, thereby improve the speed of precipitating, be favorable to improving the processing progress of sewage, it is comparatively convenient to use.
The working principle is as follows: ozone in the ozone tank 3 is led into the inside of the shell 2 through the oxygen guide pipe 304, so that the ozone has the functions of sterilization and disinfection, germs in sewage are reduced, pollution is reduced, the filter screen II 10 and the active carbon adsorption layer 11 have the functions of filtration and adsorption, impurities in the sewage are filtered and intercepted, peculiar smell in the sewage is adsorbed, the pollution of the sewage is reduced, the ultraviolet germicidal lamp 1201 is used for carrying out secondary sterilization treatment on the sewage, so that the pollution of the water is reduced, the use is convenient, impurities discharged from the inside of the collecting device can be conveniently collected through the sewage collecting box 4, the uniform collection treatment is convenient, the pollution is reduced, the use is convenient, precipitated impurities are collected in the inside of the shell 2 through the impurity collecting box 801, the precipitated impurities are discharged through the sewage guide pipe 9 and the sewage discharge port 204, the inside of the device is convenient to clean, meanwhile, secondary pollution caused by precipitated impurities is reduced, the use is convenient, the impurities are led out through the air pressure generated by drawing by using the drawing rod 901, the blocking block 902 and the handle 903 in a drawing and discharging manner, so that the impurities can not overflow, the inside of the device can be cleaned more cleanly, the use is convenient, the filter screen II 10 and the active carbon adsorption layer 11 in the device can be replaced through the observation window door 13, the filter screen II 10 and the active carbon adsorption layer 11 are prevented from being invalid after being used for a long time, the timely replacement is favorable for improving the purification treatment effect of the device, the use is convenient, the impurities accumulated on the filter screen II 10 and the active carbon adsorption layer 11 can be conveniently cleaned, the use is convenient, the sealing ring 1301 plays a sealing role, the sewage is prevented from permeating from the observation window door 13 when the sewage is purified, and the use is convenient, sending into casing 2 with alum 501 through passage 504 inside, adsorbing the impurity granule in the sewage through alum 501 to accelerate the impurity in the sewage to deposit, it is comparatively convenient to use, drives (mixing) shaft 7 through motor 6 and rotates, thereby drives stirring fan blade 701 and rotates, accelerates the impurity separation of aquatic through the stirring, thereby improves the speed of deposiing, is favorable to improving the processing progress of sewage, and it is comparatively convenient to use.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides an integrated sewage purification treatment device of building engineering, includes bottom plate (1), casing (2), ozone jar (3), dirty case (4) of collection, bin (5), motor (6), (mixing) shaft (7), baffle (8), lead dirty pipe (9), filter screen two (10), active carbon adsorption layer (11), disinfection room (12) and observation window door (13), its characterized in that: the top of the bottom plate (1) is provided with a shell (2), the bottom of the shell (2) is provided with a water outlet (201) penetrating through the bottom plate (1), the water outlet (201) is provided with a first control valve (202), the two sides of the shell (2) are provided with sewage discharge ports (204), the front of the shell (2) is provided with a second control valve (205), the bottom end of one side of the shell (2) is provided with a fixing frame (301), the inside of the fixing frame (301) is provided with an ozone tank (3), the top and the bottom of the ozone tank (3) are provided with an oxygen outlet (302), the bottom of the oxygen outlet (302) is provided with a barometer (303), one side of the oxygen outlet (302) is provided with an oxygen guide pipe (304) penetrating through one side of the shell (2), a sewage collection box (4) is arranged above the ozone tank (3), the bottom of the sewage collection box (4) is provided with rolling wheels (401), the other side of the top of the shell (2) is provided with a storage box (5), alum (501) is arranged in the storage box (5), a material guide pipe (504) penetrating through the top of the shell (2) is arranged at the bottom of the storage box (5), a motor (6) is arranged at the top of the shell (2), a stirring shaft (7) penetrating through the top of the shell (2) is arranged at the bottom of the motor (6), stirring blades (701) are uniformly distributed on the stirring shaft (7), a partition plate (8) is arranged in the shell (2), impurity boxes (801) are arranged on two sides of the top of the partition plate (8), a dirt guide pipe (9) penetrating through the partition plate (8) is arranged at the bottom of the impurity boxes (801), a pumping rod (901) is arranged in the dirt guide pipe (9), blocking blocks (902) and a handle (903) are respectively arranged at two ends of the pumping rod (901), a second filter screen (10) is arranged below the partition plate (8), and an activated carbon adsorption layer (11) is arranged below the second filter screen (10), the inside bottom surface of casing (2) is equipped with disinfection room (12), the inside top surface both sides of disinfection room (12) all are equipped with sterilamp (1201), the top of disinfection room (12) is equipped with down mouth of a river (1202), the front of casing (2) is equipped with observation window door (13), the outside of observation window door (13) is equipped with sealing washer (1301).
2. The integrated sewage purification treatment device of the building engineering according to claim 1, characterized in that: supporting legs (101) are arranged on two sides of the bottom plate (1).
3. The integrated sewage purification treatment device of the building engineering according to claim 1, characterized in that: a water inlet (203) is formed in one side of the top of the shell (2).
4. The integrated sewage purification treatment device of the building engineering according to claim 1, characterized in that: the bottom of the rolling wheel (401) is provided with a mounting rack (402), the mounting rack (402) is mounted on two sides of the shell (2), and the mounting rack (402) is located below the sewage draining outlet (204).
5. The integrated sewage purification treatment device of the building engineering according to claim 1, characterized in that: both sides of storage box (5) all are equipped with support frame (502), and the top of storage box (5) is equipped with feed inlet (503).
6. The integrated sewage purification treatment device of the building engineering according to claim 1, characterized in that: the front surface of the clapboard (8) is provided with a water outlet (802), and the top of the water outlet (802) is provided with a first filter screen (803).
7. The integrated sewage purification treatment device of the building engineering according to claim 1, characterized in that: the motor is characterized in that a motor shell (601) is arranged outside the motor (6), and heat dissipation holes (602) are formed in the top of the motor shell (601).
CN202122275519.9U 2021-09-18 2021-09-18 Building engineering's integration sewage purification treatment device Active CN217148850U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122275519.9U CN217148850U (en) 2021-09-18 2021-09-18 Building engineering's integration sewage purification treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122275519.9U CN217148850U (en) 2021-09-18 2021-09-18 Building engineering's integration sewage purification treatment device

Publications (1)

Publication Number Publication Date
CN217148850U true CN217148850U (en) 2022-08-09

Family

ID=82659820

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122275519.9U Active CN217148850U (en) 2021-09-18 2021-09-18 Building engineering's integration sewage purification treatment device

Country Status (1)

Country Link
CN (1) CN217148850U (en)

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