CN210751663U - Sewage grading cleaning environment-friendly device - Google Patents
Sewage grading cleaning environment-friendly device Download PDFInfo
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- CN210751663U CN210751663U CN201921624860.7U CN201921624860U CN210751663U CN 210751663 U CN210751663 U CN 210751663U CN 201921624860 U CN201921624860 U CN 201921624860U CN 210751663 U CN210751663 U CN 210751663U
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Abstract
The utility model discloses a sewage grading cleaning environmental protection device in the technical field of sewage treatment, which comprises a box body, the top of the inner cavity of the box body is fixedly connected with a transverse plate, the left side of the top of the transverse plate is fixedly connected with a division plate, the left side of the top of the box body is fixedly connected with a liquid homogenizing device positioned at the left side of the division plate, the center of the top of the liquid homogenizing device is communicated with a water inlet pipe, the left side of the top of the inner cavity of the box body is provided with a filtering mechanism which inclines upwards from left to right, the liquid homogenizing device is positioned at the right upper part of the filtering mechanism, the left side of the top of the box body is provided with a discharge hole corresponding to the transverse plate, the left end of the top of the transverse plate is fixedly connected with an inclined block positioned under the left end of the filtering mechanism, the sewage grading, is beneficial to the flowing and discharging of the sludge and is convenient for the operation of a user.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically is a sewage grading clearance environment-friendly device.
Background
Sewage treatment: the sewage is purified to reach the water quality requirement of being discharged into a certain water body or being reused. 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.
The utility model discloses a sewage is hierarchical clears up environment-friendly device is disclosed in chinese utility model patent that the grant bulletin number is CN208541896U, grant bulletin day 2019-02-26, including hierarchical case, backup pad, ramp board, be provided with the inlet channel before the hierarchical case, the inlet channel below is provided with the filter screen, be provided with behind the filter screen the backup pad, be provided with out dirty mouthful behind the backup pad, it is provided with the deflector to go out dirty mouthful both sides, be provided with oblique slide plate behind the play dirty mouthful, oblique slide plate below is provided with the collecting box, be provided with first baffle under the backup pad, first baffle one side is provided with the second baffle, be provided with the outlet pipe before the second baffle, the backup pad below is provided with ramp board. Has the advantages that: the utility model discloses utilize the natural driving force of rivers to promote the floater and get into the collecting box to utilize the disturbance of first baffle and second baffle prevention rivers, avoided causing silt to roll because the disturbance of rivers and get into the outlet pipe, increased the sediment of silt, improved the effect of sewage hierarchical clearance.
Above-mentioned sewage grading clearance environment-friendly device is at the during operation, and the filter screen is the slope setting, but the condition of filter screen blocking can appear, and in addition when discharge mud, bottom half can adhesion mud, if untimely clearance, the long-term adhesion of mud can influence the flow of bottom half mud, and is very inconvenient when clearing up again, and inconvenient user uses, has reduced sewage grading clearance environment-friendly device's practicality.
Based on this, the utility model designs a specifically be a sewage is cleared up environment-friendly device in grades to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sewage grading clearance environment-friendly device to solve traditional sewage grading clearance environment-friendly device that proposes in the above-mentioned background art at the during operation, the filter screen is the slope setting, but the condition of filter screen blocking can appear, in addition when discharge mud, the bottom half can adhesion mud, if not clear up in time, the long-term adhesion of mud can influence the flow of bottom half mud, very inconvenient problem when clearing up again.
In order to achieve the above object, the utility model provides a following technical scheme: an environment-friendly sewage grading cleaning device comprises a box body, wherein a transverse plate is fixedly connected to the top of an inner cavity of the box body, a separation plate is fixedly connected to the left side of the top of the transverse plate, a liquid homogenizing device positioned on the left side of the separation plate is fixedly connected to the left side of the top of the box body, a water inlet pipe is communicated with the center of the top of the liquid homogenizing device, a filtering mechanism which inclines upwards from left to right is arranged on the left side of the top of the inner cavity of the box body, the liquid homogenizing device is positioned on the upper right side of the filtering mechanism, a discharge hole is formed in the left top of the box body and corresponds to the transverse plate, an inclined block positioned right below the left end of the filtering mechanism is fixedly connected to the left side of the top of the transverse plate, a brush which is in contact with the filtering mechanism is fixedly connected to the, an output shaft of the driving motor a penetrates to the bottom of the transverse plate and is fixedly connected with a rotating rod, a scraping plate which is connected with the inner wall of the box body in a sliding mode is fixedly connected to the bottom end of the rotating rod, a water outlet pipe which is located between the scraping plate and the transverse plate is communicated with the right side of the box body, an L-shaped baffle is fixedly connected to the right side of the inner wall of the box body and corresponds to the position of the water outlet pipe, a sludge outlet pipe which is communicated with the center of the bottom of the inner cavity of the box body is arranged at the bottom end of the;
the filtering mechanism comprises two rotating rollers which are rotatably connected to the inner cavity of the box body, a belt type filter screen is connected to the surface of the two rotating rollers in a transmission mode, gears located on the outer side of the belt type filter screen are arranged on the front side and the rear side of the surface of the rotating rollers, toothed belts which are meshed with the gears are fixedly connected to the front side and the rear side of the belt type filter screen, a driving motor b is fixedly installed at the top of the front side of the box body, and an output shaft of the driving motor b is fixedly connected with one end of each rotating roller.
Preferably, the liquid homogenizing device comprises a square box fixed at the top of the box body, and the bottom of the square box is uniformly communicated with six liquid outlet pipes.
Preferably, eight convex ribs are fixedly connected to the surface of the belt type filter screen at the same intervals, and the six liquid outlet pipes are located right above the belt type filter screen.
Preferably, the scraper blade includes a horizontal segment, and the both ends of horizontal segment are connected with the slope section, and the one end that the horizontal segment was kept away from to the slope section is connected with vertical section.
Preferably, a reinforcing rod is fixedly connected between the inclined section and the vertical section of the scraper and the rotating rod.
Preferably, the center department fixedly connected with of scraper blade bottom is located the interior anti-blocking mechanism of mud pipe, anti-blocking mechanism includes the montant and fixes the horizontal pole on the montant surface.
Preferably, an observation window is embedded in the front side of the box body, and the observation window is rectangular.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a setting of homocline ware, filter mechanism, sloping block and brush, the sewage that the inlet tube got into can be even through the homocline ware fall on the belt filter screen in the filter mechanism, and the belt filter screen filters sewage and carries floater or granule left, utilizes the sloping block to discharge floater or granule, through the contact of brush and belt filter screen, clears up the belt filter screen, has guaranteed the normal use of belt filter screen; through the matching of the driving motor a, the rotating rod and the scraper, when the device discharges sludge, the sludge on the inner wall of the box body is scraped by utilizing the sliding of the scraper and the inner wall of the box body, so that the sludge is prevented from being adhered to the inner wall of the box body for a long time, and the flowing and discharging of the sludge are facilitated; in addition, through the arrangement of the anti-blocking mechanism, when the scraper rotates, the scraper drives the anti-blocking mechanism to rotate in the inlet of the sludge outlet pipe, so that the sludge at the inlet of the sludge outlet pipe is stirred, the phenomenon of blocking at the inlet of the sludge outlet pipe is prevented, and the sludge is favorably discharged smoothly; this sewage grading clearance environment-friendly device can clear up the belt filter screen at the during operation, prevents that the filter screen from blockking up, can strike off the mud on the box inner wall when arranging mud, is favorable to the flow and the discharge of mud, and the person of facilitating the use operates.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is a schematic top view of the filtering mechanism of the present invention;
FIG. 4 is a perspective view of the liquid homogenizer and water inlet pipe structure of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. a box body; 2. a transverse plate; 3. a partition plate; 4. a liquid homogenizing device; 41. a square box; 42. a liquid outlet pipe; 5. a water inlet pipe; 6. a filtering mechanism; 61. a rotating roller; 62. a belt filter screen; 63. a gear; 64. a toothed belt; 65. a drive motor b; 66. a rib is protruded; 7. a sloping block; 8. a brush; 9. a water inlet; 10. driving a motor a; 11. rotating the rod; 12. a squeegee; 13. a water outlet pipe; 14. an L-shaped baffle plate; 15. a mud outlet pipe; 16. a reinforcing rod; 17. an anti-blocking mechanism; 18. and (4) an observation window.
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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: an environmental protection device for sewage graded cleaning comprises a box body 1, a transverse plate 2 is fixedly connected to the top of an inner cavity of the box body 1, a partition plate 3 is fixedly connected to the left side of the top of the transverse plate 2, a liquid homogenizing device 4 positioned on the left side of the partition plate 3 is fixedly connected to the left side of the top of the box body 1, concretely, the liquid homogenizing device 4 comprises a square box 41 fixed to the top of the box body 1, six liquid outlet pipes 42 are uniformly communicated with the bottom of the square box 41, a water inlet pipe 5 is communicated with the center of the top of the square box 41, when in work, sewage enters the inner cavity of the square box 41 through the water inlet pipe 5 and then falls on a filtering mechanism 6 through the six liquid outlet pipes 42 at the bottom of the square box 41 so as to achieve the effect that the sewage uniformly falls on the filtering mechanism 6, a filtering mechanism 6 which is inclined upwards from left to right is arranged on the left side of the top of the inner cavity of, the left end of the top of the transverse plate 2 is fixedly connected with an inclined block 7 which is positioned right below the left end of the filtering mechanism 6, the top of the inclined plane of the inclined block 7 is fixedly connected with a brush 8 which is contacted with the filtering mechanism 6, the brush 8 is a nylon brush, the top of the transverse plate 2 is provided with a water inlet 9 which is positioned between the inclined block 7 and the partition plate 3, the center of the top of the transverse plate 2 is fixedly provided with a driving motor a10, an output shaft of the driving motor a10 penetrates to the bottom of the transverse plate 2 and is fixedly connected with a rotating rod 11, the bottom end of the rotating rod 11 is fixedly connected with a scraping plate 12 which is connected with the inner wall of the box body 1 in a sliding way, the scraping plate 12 comprises a horizontal section, two ends of the horizontal section are connected with inclined sections, one end of each inclined section, which is far away from the horizontal section, is connected with a vertical section, when a driving motor a10 is started, an output shaft of the driving motor a10 drives a scraping plate 12 to rotate through a rotating rod 11, the scraping plate 12 slides at the bottom of an inner cavity of a box body 1 to further separate sludge on the inner wall of the box body 1, the middle of the sludge flows and is finally discharged through a sludge outlet pipe 15, the right side of the box body 1 is communicated with a water outlet pipe 13 positioned between the scraping plate 12 and a transverse plate 2, an L-shaped baffle 14 is fixedly connected to the right side of the inner wall of the box body 1 and corresponds to the position of the water outlet pipe 13, silt is prevented from being directly taken away from the water outlet pipe 13 under the action of the water flow of sewage through the arrangement of the L-shaped baffle 14, a sludge outlet pipe 15 communicated with the center of the bottom of the inner cavity of the box body 1 is arranged at the bottom end of the box body 1, the other end of the sludge outlet pipe 15 extends to the outer side of the box body 1, the other end of the sludge outlet pipe 15 is connected with a sludge, the anti-blocking mechanism 17 comprises a vertical rod and a cross rod fixed on the surface of the vertical rod, and through the arrangement of the anti-blocking mechanism 17, when the scraper 12 rotates, the scraper 12 drives the anti-blocking mechanism 17 to rotate in the inlet of the sludge outlet pipe 15, so that the sludge at the inlet of the sludge outlet pipe 15 is stirred, the phenomenon of blocking at the inlet of the sludge outlet pipe 15 is prevented, and the smooth discharge of the sludge is facilitated;
the filtering mechanism 6 comprises two rotating rollers 61 rotatably connected to the inner cavity of the box body 1, the surfaces of the two rotating rollers 61 are in transmission connection with belt type filtering nets 62, gears 63 located on the outer sides of the belt type filtering nets 62 are arranged on the front and back sides of the surfaces of the rotating rollers 61, toothed belts 64 meshed with the gears 63 are fixedly connected on the front and back sides of the belt type filtering nets 62, a driving motor b65 is fixedly installed at the top of the front side of the box body 1, an output shaft of a driving motor b65 is fixedly connected with the front end of the right rotating roller 61, eight convex ribs 66 are fixedly connected on the surfaces of the belt type filtering nets 62 at the same intervals, floating objects or particles on the belt type filtering nets 62 can be driven to be conveyed leftwards by the convex ribs 66, the six liquid outlet pipes 42 are located right above the belt type filtering nets 62, when the filtering machine is used, a user drives the rotating, the two rotating rollers 61 and the four gears 63 synchronously rotate through the matching of the gears 63 on the two rotating rollers 61 and the toothed belts 64, the gears 63 drive the belt type filter screens 62 to transmit on the surfaces of the two rotating rollers 61 through the toothed belts 64, water flowing out of the liquid outlet pipe 42 falls on the belt type filter screens 62, sewage is filtered through the belt type filter screens 62, floaters or particles filtered on the belt type filter screens 62 are conveyed leftwards and fall on the inclined surfaces of the inclined blocks 7, the floaters or the particles slide out leftwards by utilizing the inclination of the inclined blocks 7, and meanwhile, the brush 8 is in contact with the belt type filter screens 62, so that the brush 8 washes the surfaces of the belt type filter screens 62, the belt type filter screens 62 are prevented from being blocked, and the normal use of the belt type filter screens 62 is facilitated;
in addition, the front side of the box body 1 is inlaid with an observation window 18, the observation window 18 is rectangular and is arranged through the observation window 18, and a user can observe the sludge accumulation height at the bottom of the inner cavity of the box body 1 conveniently so as to remind the user to treat the sludge in the box body 1.
One specific application of this embodiment is: when the device works, sewage enters an inner cavity of the square box 41 through the water inlet pipe 5 and then falls on the filtering mechanism 6 through the six liquid outlet pipes 42 at the bottom of the square box 41, so that the sewage uniformly falls on the filtering mechanism 6, a user can start the driving motor b65, the output shaft of the driving motor b65 drives the rotating rollers 61 at the right side to rotate, the two rotating rollers 61 and the four gears 63 synchronously rotate through the matching of the gears 63 on the two rotating rollers 61 and the toothed belts 64, the gears 63 drive the belt type filtering net 62 to transmit on the surfaces of the two rotating rollers 61 through the toothed belts 64, water flowing out of the liquid outlet pipes 42 falls on the belt type filtering net 62, the sewage is filtered through the belt type filtering net 62, floaters or particles filtered on the belt type filtering net 62 are conveyed to the left and fall on the inclined plane of the inclined block 7, and the floaters or particles slide out to the left by utilizing the inclination of the, meanwhile, the brush 8 is contacted with the belt type filter screen 62, so that the brush 8 washes the surface of the belt type filter screen 62, the belt type filter screen 62 is prevented from being blocked, the normal use of the belt type filter screen 62 is facilitated, the filtered water falls into the bottom of the inner cavity of the box body 1 through the water inlet 9 for standing and precipitation, the clear water above the water overflows the L-shaped baffle 14 and is discharged from the water outlet pipe 13, and the sludge is accumulated at the bottom of the inner cavity of the box body 1;
when sludge at the bottom of the inner cavity of the box body 1 needs to be discharged, the other end of the sludge outlet pipe 15 is connected with a sludge pump, the sludge pump is started to pump out the sludge at the bottom of the inner cavity of the box body 1, then the driving motor a10 is started, the output shaft of the driving motor a10 drives the scraper 12 to rotate through the rotating rod 11, the scraper 12 slides at the bottom of the inner cavity of the box body 1, so that the sludge on the inner wall of the box body 1 is separated, the middle of the sludge flows, and finally the sludge is discharged through the sludge outlet pipe 15, the sludge is prevented from being adhered to the bottom of the inner cavity of the box body 1 for a long time, the scraper 12 drives the anti-blocking mechanism 17 to rotate in the inlet of the sludge outlet pipe 15 while the scraper 12 rotates, so that the sludge inlet at the inlet of the sludge outlet pipe 15 is.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a sewage grading cleaning environment-friendly device, includes box (1), its characterized in that: the top of the inner cavity of the box body (1) is fixedly connected with a transverse plate (2), the left side of the top of the transverse plate (2) is fixedly connected with a partition plate (3), the left side of the top of the box body (1) is fixedly connected with a liquid homogenizing device (4) positioned on the left side of the partition plate (3), the center of the top of the liquid homogenizing device (4) is communicated with a water inlet pipe (5), the left side of the top of the inner cavity of the box body (1) is provided with a filtering mechanism (6) which inclines from left to right, the liquid homogenizing device (4) is positioned on the upper right of the filtering mechanism (6), a discharge hole is formed in the left top of the box body (1) and corresponds to the position of the transverse plate (2), the left end of the top of the transverse plate (2) is fixedly connected with an inclined block (7) positioned under the left end of the filtering mechanism (, the top of the transverse plate (2) is provided with a water inlet (9) positioned between the inclined block (7) and the partition plate (3), a driving motor a (10) is fixedly arranged at the center of the top of the transverse plate (2), an output shaft of the driving motor a (10) penetrates to the bottom of the transverse plate (2) and is fixedly connected with a rotating rod (11), the bottom end of the rotating rod (11) is fixedly connected with a scraping plate (12) which is connected with the inner wall of the box body (1) in a sliding way, the right side of the box body (1) is communicated with a water outlet pipe (13) positioned between the scraping plate (12) and the transverse plate (2), and the right side of the inner wall of the box body (1) and the position corresponding to the water outlet pipe (13) are fixedly connected with an L-shaped baffle plate (14), a mud outlet pipe (15) communicated with the center of the bottom of the inner cavity of the box body (1) is arranged at the bottom end of the inner part of the box body (1), and the other end of the mud outlet pipe (15) extends to the outer side of the box body (1);
filtering mechanism (6) are including rotating two live-rollers (61) of connecting at box (1) inner chamber, and the surface transmission of two live-rollers (61) is connected with belt filter screen (62), both sides all are provided with gear (63) that are located belt filter screen (62) outside around live-roller (61) surface, equal fixedly connected with in both sides around belt filter screen (62) and toothed belt (64) of gear (63) meshing, the top fixed mounting of box (1) front side has driving motor b (65), the output shaft of driving motor b (65) and the one end fixed connection of live-roller (61).
2. The sewage grading cleaning environment-friendly device according to claim 1, characterized in that: the liquid distributor (4) comprises a square box (41) fixed to the top of the box body (1), and six liquid outlet pipes (42) are uniformly communicated with the bottom of the square box (41).
3. The sewage grading cleaning environment-friendly device according to claim 2, characterized in that: eight convex ribs (66) are fixedly connected to the surface of the belt type filter screen (62) at the same intervals, and the six liquid outlet pipes (42) are located right above the belt type filter screen (62).
4. The sewage grading cleaning environment-friendly device according to claim 3, characterized in that: the scraper blade (12) comprises a horizontal section, the two ends of the horizontal section are connected with inclined sections, and one ends, far away from the horizontal section, of the inclined sections are connected with vertical sections.
5. The environmental protection device for graded cleaning of sewage according to claim 4, characterized in that: and reinforcing rods (16) are fixedly connected between the inclined sections and the vertical sections of the scraping plates (12) and the rotating rods (11).
6. The sewage grading cleaning environment-friendly device according to claim 5, characterized in that: the center department fixedly connected with of scraper blade (12) bottom is located the stifled mechanism (17) of preventing of mud pipe (15) inner chamber, prevent stifled mechanism (17) and include the montant and fix the horizontal pole on the montant surface.
7. The sewage grading cleaning environment-friendly device according to claim 6, characterized in that: an observation window (18) is embedded in the front side of the box body (1), and the observation window (18) is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624860.7U CN210751663U (en) | 2019-09-25 | 2019-09-25 | Sewage grading cleaning environment-friendly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624860.7U CN210751663U (en) | 2019-09-25 | 2019-09-25 | Sewage grading cleaning environment-friendly device |
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| Publication Number | Publication Date |
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| CN210751663U true CN210751663U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921624860.7U Active CN210751663U (en) | 2019-09-25 | 2019-09-25 | Sewage grading cleaning environment-friendly device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111925059A (en) * | 2020-08-12 | 2020-11-13 | 陈时云 | Industrial sewage treatment system |
| CN112755621A (en) * | 2020-12-17 | 2021-05-07 | 深圳市星源空间环境技术有限公司 | Vibrations formula is convenient for separate sewage treatment mechanism of sewage debris |
| CN112933727A (en) * | 2021-01-08 | 2021-06-11 | 金华职业技术学院 | Environment-friendly sewage discharging device |
| CN113042365A (en) * | 2021-06-01 | 2021-06-29 | 四川轻化工大学 | Sand screening and classifying equipment for building |
| CN113457255A (en) * | 2021-07-19 | 2021-10-01 | 山东科美环保技术服务有限公司 | Domestic sewage's environmental protection processing apparatus |
-
2019
- 2019-09-25 CN CN201921624860.7U patent/CN210751663U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111925059A (en) * | 2020-08-12 | 2020-11-13 | 陈时云 | Industrial sewage treatment system |
| CN112755621A (en) * | 2020-12-17 | 2021-05-07 | 深圳市星源空间环境技术有限公司 | Vibrations formula is convenient for separate sewage treatment mechanism of sewage debris |
| CN112933727A (en) * | 2021-01-08 | 2021-06-11 | 金华职业技术学院 | Environment-friendly sewage discharging device |
| CN113042365A (en) * | 2021-06-01 | 2021-06-29 | 四川轻化工大学 | Sand screening and classifying equipment for building |
| CN113457255A (en) * | 2021-07-19 | 2021-10-01 | 山东科美环保技术服务有限公司 | Domestic sewage's environmental protection processing apparatus |
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Effective date of registration: 20230831 Address after: Room 912, Office Building of Gansu Membrane Science and Technology Research Institute Co., Ltd., No. 1272 Jiatan Road, Chengguan District, Lanzhou City, Gansu Province, 730000 Patentee after: Gansu Zhiyicheng Environmental Protection Engineering Co.,Ltd. Address before: 730050 No.200, third village, yanjiaping, Qilihe district, Lanzhou City, Gansu Province Patentee before: GANSU CONSTRUCTION VOCATIONAL TECHNICAL College |
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