CN210215102U - Water treatment facilities convenient to it is clean - Google Patents
Water treatment facilities convenient to it is clean Download PDFInfo
- Publication number
- CN210215102U CN210215102U CN201920976025.3U CN201920976025U CN210215102U CN 210215102 U CN210215102 U CN 210215102U CN 201920976025 U CN201920976025 U CN 201920976025U CN 210215102 U CN210215102 U CN 210215102U
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- Prior art keywords
- fixedly connected
- tank
- acid
- cleaning
- disinfection
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000005273 aeration Methods 0.000 claims abstract description 58
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 44
- 238000004140 cleaning Methods 0.000 claims abstract description 39
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 239000010802 sludge Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 abstract description 25
- 239000002351 wastewater Substances 0.000 abstract description 21
- 238000005507 spraying Methods 0.000 abstract description 10
- 239000007921 spray Substances 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 230000003749 cleanliness Effects 0.000 abstract description 3
- 230000010405 clearance mechanism Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 21
- 239000003513 alkali Substances 0.000 description 11
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000005394 sealing glass Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Physical Water Treatments (AREA)
Abstract
The utility model discloses a water treatment facilities convenient to it is clean, including concave frame, clearance mechanism, acid-base neutralization pond, aeration mechanism and disinfection pond, the perpendicular fixedly connected with stand in concave frame top, the inside spout that is equipped with in stand one side, the first motor of frame fixedly connected with is passed through on the stand top, and beneficial effect is: the cleaning mechanism is arranged at the initial end of the water treatment equipment, and the static and solid conversion is utilized to remove precipitated impurities, paint, dust particles and other non-degradable suspended matters in the paint spraying wastewater, so that the preparation for the later-stage quick treatment is facilitated, the operation is simple, and the use is convenient; the organic pollutants in the paint spraying wastewater are decomposed completely by arranging the aeration mechanism, so that the cleanliness of the paint spraying wastewater is improved; through setting up acid-base neutralization pond and disinfection pond, carry out acid-base neutralization and disinfection treatment to the waste water that sprays paint fast for the purification degree of the waste water that sprays paint that handles is higher, avoids direct emission to cause the pollution to the environment.
Description
Technical Field
The utility model relates to a water treatment facilities, in particular to water treatment facilities convenient to it is clean belongs to water treatment facilities technical field.
Background
Paint waste water is a big difficult point in chemical industry waste water treatment, paint waste water has two kinds of sources, one is the waste water that sprays paint that produces after the spray water adsorption saturation in the workshop of spraying paint of manufacturing enterprises such as furniture, automobiles, etc. and one is the waste water of producing of paint manufacturing enterprise, because paint waste water clearance is more complicated, the paint waste water that general small company or home decoration produced directly discharges and hangs, cause environmental pollution serious, current paint water treatment facility all is relatively large-scale treatment facility, and is expensive, and the operation is fairly complicated, and to the big impurity in the waste water generally salvage the clearance through the manual work, and working strength is big, the clearance is unclean, and simultaneously to the organic pollutant clearance in aqueous incomplete inadequately, does not have fine decomposition organic pollutant's device, causes that the good water source cleanliness of post treatment is not high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a water treatment facilities convenient to it is clean.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a water treatment device convenient for cleaning, which comprises a concave frame, a cleaning mechanism, an acid-base neutralization tank, an aeration mechanism and a disinfection tank, wherein the top end of the concave frame is vertically and fixedly connected with a stand column, a chute is arranged inside one side of the stand column, the top end of the stand column is fixedly connected with a first motor through a frame, the output end of the first motor is fixedly connected with a lead screw through a shaft coupling, the lead screw penetrates through the stand column, the other end of the lead screw is movably connected with the inner bottom surface of the chute, the stand column is provided with the cleaning mechanism at one side corresponding to the lead screw, the top end of the concave frame is fixedly connected with an acid-base solution storage box at one side of the stand column, the inner top surface of the concave frame is fixedly connected with the acid-base neutralization tank, the acid-base neutralization tank is connected with the acid-base solution storage box through a pipeline, the aeration mechanism is arranged, the disinfection device is characterized in that the disinfection tank is arranged on one side of the concave frame, the bottom surface of the disinfection tank is fixedly connected with a storage battery, the disinfection tank is internally and electrically connected with an ultraviolet disinfection lamp close to one side of the storage battery, and the disinfection tank is internally and fixedly connected with a sealing glass cover outside the ultraviolet disinfection lamp.
The utility model relates to a preferred technical scheme, clearance mechanism is including the clearance pond, the top is equipped with the through-hole in the clearance pond, the fixed drain pipe that runs through of clearance pond side bottom, be connected through rubber hose in drain pipe and the acid-base and between the pond, the inside horizontal sliding connection of clearance pond has back style of calligraphy clearance board, back the inside fixedly connected with cross of style of calligraphy clearance board, the perpendicular fixedly connected with connecting rod in cross centre, the connecting rod passes the through-hole and is located the horizontal fixedly connected with fagging of clearance pond outside one end, fagging one end fixed connection is on the stand lateral surface, the clearance pond is located stand one side fixedly connected with slider, slider sliding connection is on the spout inner wall and threaded connection is at the lead screw surface.
As a preferred technical scheme, aeration mechanism includes aeration tank, second motor and filter, aeration tank one end fixed connection is on concave frame medial surface, just the aeration tank upper and lower surface all through the pipeline respectively with acid-base neutralization pond and disinfection pond fixed connection, aeration tank lateral surface just keeps away from concave frame one end and passes through frame fixedly connected with second motor, the second motor output passes through shaft coupling fixedly connected with pivot, the pivot runs through the aeration tank and is located a plurality of stirring leaves of the inside fixed surface of aeration tank, aeration tank bottom horizontal sliding connection has the filter, concave frame lateral surface passes through the perpendicular fixedly connected with oxygen cylinder of mount, the oxygen cylinder passes through pipeline and aeration tank fixed connection, aeration tank upper surface one end fixedly connected with active sludge deposits the case.
As an optimal technical scheme, the cleaning tank and the acid-base neutralization tank, the acid-base solution storage box and the acid-base neutralization tank, the acid-base neutralization tank and the aeration tank, the aeration tank and the oxygen bottle, the aeration tank and the disinfection tank are arranged on the pipeline and the disinfection tank is provided with a valve fixedly connected with the liquid outlet.
As a preferred technical scheme, the equal fixed mounting in four planes that returns style of calligraphy clearance board inside wall and cross formed has the filter screen.
As an optimal technical proposal of the utility model, the bottom surface in the aeration tank is positioned on two sides of the filter plate and is a V-shaped inclined surface.
The utility model discloses the beneficial effect who reaches is:
1. the cleaning mechanism is arranged at the initial end of the water treatment equipment, and the static state and solid state conversion is utilized to remove precipitated impurities, paint, dust particles and other non-degradable suspended matters in the paint spraying wastewater, so that the preparation for the later-stage quick treatment is facilitated, the operation is simple, the use is convenient, and the complexity of manual operation is replaced by the mechanical principle;
2. the organic pollutants in the paint spraying wastewater are decomposed completely by arranging the aeration mechanism, so that the cleanliness of the paint spraying wastewater is improved;
3. through setting up acid-base neutralization pond and disinfection pond, carry out acid-base neutralization and disinfection treatment to the waste water that sprays paint fast for the purification degree of the waste water that sprays paint that handles is higher, avoids direct emission to cause the pollution to the environment.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall front structure of the present invention;
FIG. 2 is a schematic structural view of the cleaning mechanism of the present invention;
FIG. 3 is a top view of the cleaning plate of the present invention;
FIG. 4 is a schematic structural view of the aeration mechanism of the present invention;
figure 5 is a cross-sectional view of the disinfection tank of the present invention.
In the figure: 1. a concave frame; 2. a column; 3. a first motor; 4. a chute; 5. a screw rod; 6. a cleaning mechanism; 61. cleaning the pool; 62. a connecting rod; 63. a supporting plate; 64. a liquid outlet pipe; 65. a slider; 66. a square-shaped cleaning plate; 67. a through hole; 68. a cross; 69. a filter screen; 7. an acid-base neutralization tank; 8. storing the acid and alkali liquor in a box; 9. an aeration mechanism; 91. an aeration tank; 92. a filter plate; 93. a second motor; 94. a rotating shaft; 95. stirring blades; 10. an activated sludge storage tank; 11. an oxygen cylinder; 12. a disinfection tank; 13. a storage battery; 14. an ultraviolet disinfection lamp; 15. sealing the glass cover; 16. and (4) a valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Examples
As shown in figures 1-5, a water treatment device convenient for cleaning comprises a concave frame 1, a cleaning mechanism 6, an acid-alkali neutralization tank 7, an aeration mechanism 9 and a disinfection tank 12, wherein the top end of the concave frame 1 is vertically and fixedly connected with a vertical column 2, a chute 4 is arranged inside one side of the vertical column 2, the top end of the vertical column 2 is fixedly connected with a first motor 3 through a frame, the output end of the first motor 3 is fixedly connected with a screw rod 5 through a coupler, the screw rod 5 penetrates through the vertical column 2, the other end of the screw rod is movably connected with the inner bottom surface of the chute 4, the cleaning mechanism 6 is arranged on one side of the vertical column 2 corresponding to the screw rod 5, an acid-alkali solution storage box 8 is fixedly connected with the top end of the concave frame 1 and is positioned on one side of the vertical column 2, the acid-alkali neutralization tank 7 is fixedly connected with the inner top surface of the concave frame 1, the acid-alkali neutralization tank 7 is connected with the acid-alkali solution storage box 8 through a pipeline, the bottom surface fixedly connected with battery 13 just is located concave frame 1 in disinfection pond 12 one side, and disinfection pond 12 is inside and be close to battery 13 one side electric connection have ultraviolet ray disinfection lamp 14, and disinfection pond 12 is inside just is located the sealed glass of the 14 outside fixedly connected with cover 15 of ultraviolet ray disinfection lamp.
Wherein, clearance mechanism 6 is including clearance pond 61, the top is equipped with through-hole 67 in the clearance pond 61, clearance pond 61 a side bottom mounting runs through there is drain pipe 64, be connected through rubber hose between drain pipe 64 and the acid-base neutralization pond 7, the inside horizontal sliding connection of clearance pond 61 has back style of calligraphy clearance board 66, the inside fixedly connected with cross 68 of back style of calligraphy clearance board 66, the perpendicular fixedly connected with connecting rod 62 of cross 68 centre, connecting rod 62 passes through-hole 67 and is located the horizontal fixedly connected with fagging 63 of clearance pond 61 outside one end, fagging 63 one end fixed connection is on 2 lateral surfaces of stand, clearance pond 61 is located 2 one side fixedly connected with slider 65 of stand, slider 65 sliding connection is on 4 inner walls of spout and threaded connection is at 5 surfaces of lead screw.
Wherein, aeration mechanism 9 includes aeration tank 91, second motor 93 and filter 92, aeration tank 91 one end fixed connection is on 1 medial surface of concave frame, and aeration tank 91 upper and lower surface all through the pipeline respectively with acid-base neutralization pond 7 and disinfection pond 12 fixed connection, aeration tank 91 lateral surface just keeps away from 1 one end of concave frame and passes through frame fixedly connected with second motor 93, the output of second motor 93 passes through shaft coupling fixedly connected with pivot 94, pivot 94 runs through aeration tank 91 and is located a plurality of stirring leaf 95 of aeration tank 91 inside fixed surface connection, aeration tank 91 bottom horizontal sliding connection has filter 92, 1 lateral surface of concave frame passes through the perpendicular fixedly connected with oxygen bottle 11 of mount, oxygen bottle 11 passes through pipeline and aeration tank 91 fixed connection, aeration tank 91 upper surface one end fixedly connected with active sludge deposits case 10.
Wherein, the cleaning tank 61 and the acid-base neutralization tank 7, the acid-base liquid storage box 8 and the acid-base neutralization tank 7, the acid-base neutralization tank 7 and the aeration tank 91, the aeration tank 91 and the oxygen bottle 11, and the pipelines between the aeration tank 91 and the disinfection tank 12 and the liquid outlet of the disinfection tank 12 are all fixedly connected with valves 16, so that the corresponding valves 16 are closed when each step of treatment is carried out, and the problem that the cleaning is not clean due to liquid leakage is avoided.
Wherein, filter screens 69 are fixedly arranged on four planes formed by the inner side wall of the square cleaning plate 66 and the cross 68, so that deposited impurities, paint, dust particles and other non-degradable suspended matters in the paint spraying wastewater can be filtered out conveniently.
Wherein, the bottom surface just is located filter 92 both sides and is "V" style of calligraphy inclined surface in aeration tank 91, avoids remaining activated sludge residue to remain on the aeration tank 91 inside wall.
Specifically, during the use of the utility model, firstly, paint spraying wastewater is poured into the cleaning pool 61, after a period of sedimentation, the first motor 3 is started, the screw 5 rotates to drive the slide block 65 to descend in the chute 4, thereby driving the cleaning pool 61 to descend, and the supporting plate 63 is fixed on the upright post 2, so the square-shaped cleaning plate 66 connected with the connecting rod 62 is still fixed at the original position, and the cleaning pool 61 descends to separate the square-shaped cleaning plate 66 from the cleaning pool 61, the filtering net 69 filters out the sediment impurities, paint, dust particles and other undegradable suspended matters in the paint spraying wastewater in the cleaning pool 61, after cleaning, the corresponding valve 16 is opened, the treated water source flows into the acid-alkali neutralizing pool 7, the corresponding valve 16 is opened, the acid-alkali solution in the acid-alkali solution storage box 8 is poured into the acid-alkali neutralizing pool 7, after a period of acid-alkali, the valve 16 at the low end is opened again, the water source treated in the acid-base neutralization tank 7 is put into an aeration tank 91, an oxygen cylinder 11 and a valve 16 of an activated sludge storage box 10 are opened, a second motor 93 is started, a rotating shaft 94 rotates to drive a stirring blade 95 to stir the water source, organic pollutants in the water source are decomposed after the oxygen, the activated sludge and the water source are fully mixed, biosolids are separated from the treated wastewater, after a period of time, the second motor 93 is closed, after a period of sedimentation, the valve 16 at the lower end of the aeration tank 91 is opened, water is put into the disinfection tank 12, then the ultraviolet disinfection lamp 14 is turned on to start the disinfection of the water source, at the same time, the filter plate 92 is pulled out from the aeration tank 91 to clean the filter on the filter plate 92, after a period of disinfection, and (4) closing the ultraviolet disinfection lamp 14, opening a valve 16 corresponding to the disinfection tank 12, and putting out the cleaned water source.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A water treatment device convenient to clean is characterized by comprising a concave frame (1), a cleaning mechanism (6), an acid-base neutralization tank (7), an aeration mechanism (9) and a disinfection tank (12), wherein the top end of the concave frame (1) is vertically and fixedly connected with a stand column (2), a sliding groove (4) is formed in one side of the stand column (2), the top end of the stand column (2) is fixedly connected with a first motor (3) through a frame, the output end of the first motor (3) is fixedly connected with a lead screw (5) through a coupler, the lead screw (5) penetrates through the stand column (2) and the other end of the lead screw is movably connected with the inner bottom surface of the sliding groove (4), the cleaning mechanism (6) is arranged on one side of the stand column (5) corresponding to the stand column (2), the top end of the concave frame (1) is fixedly connected with an acid-base solution storage tank (8) on one side of the stand column (2), the inner top surface of the concave, acid-base neutralization pond (7) and acid-base liquid deposit through the pipe connection between the case (8), acid-base neutralization pond (7) below is equipped with aeration mechanism (9), aeration mechanism (9) below just is located concave frame (1) bottom and passes through pipeline fixedly connected with disinfection pond (12), bottom fixedly connected with battery (13) in disinfection pond (12) one side just is located concave frame (1), disinfection pond (12) inside just is close to battery (13) one side electric connection and has ultraviolet ray disinfection lamp (14), disinfection pond (12) inside just is located ultraviolet ray disinfection lamp (14) outside fixedly connected with sealed glass cover (15).
2. The water treatment equipment convenient to clean as claimed in claim 1, wherein the cleaning mechanism (6) comprises a cleaning tank (61), a through hole (67) is formed in the top end of the cleaning tank (61), a liquid outlet pipe (64) is fixedly penetrated through the bottom end of one side surface of the cleaning tank (61), the liquid outlet pipe (64) is connected with the acid-base neutralization tank (7) through a rubber hose, a back-shaped cleaning plate (66) is horizontally and slidably connected inside the cleaning tank (61), a cross (68) is fixedly connected inside the back-shaped cleaning plate (66), a connecting rod (62) is vertically and fixedly connected to the center of the cross (68), the connecting rod (62) penetrates through the through hole (67) and is located at one end outside the cleaning tank (61), a supporting plate (63) is horizontally and fixedly connected to one end of the supporting plate (63), one end of the supporting plate (63) is fixedly connected to the outer side surface of the upright column (2), clearance pond (61) are located stand (2) one side fixedly connected with slider (65), slider (65) sliding connection just threaded connection is on lead screw (5) surface on spout (4) inner wall.
3. The water treatment device convenient for cleaning according to claim 1, wherein the aeration mechanism (9) comprises an aeration tank (91), a second motor (93) and filter plates (92), one end of the aeration tank (91) is fixedly connected to the inner side surface of the concave frame (1), the upper surface and the lower surface of the aeration tank (91) are respectively and fixedly connected with the acid-base neutralization tank (7) and the disinfection tank (12) through pipelines, the outer side surface of the aeration tank (91) and one end far away from the concave frame (1) are fixedly connected with the second motor (93) through a rack, the output end of the second motor (93) is fixedly connected with a rotating shaft (94) through a coupler, the rotating shaft (94) penetrates through the aeration tank (91) and is fixedly connected with a plurality of stirring blades (95) on the inner surface of the aeration tank (91), the bottom end of the aeration tank (91) is horizontally and slidably connected with the filter plates (92), the outer side surface of the concave frame (1) is vertically and fixedly connected with an oxygen cylinder (11) through a fixing frame, the oxygen cylinder (11) is fixedly connected with an aeration tank (91) through a pipeline, and one end of the upper surface of the aeration tank (91) is fixedly connected with an activated sludge storage box (10).
4. The water treatment equipment convenient to clean according to claim 2, characterized in that valves (16) are fixedly connected to the pipelines between the cleaning tank (61) and the acid-base neutralization tank (7), the acid-base solution storage tank (8) and the acid-base neutralization tank (7), the acid-base neutralization tank (7) and the aeration tank (91), the aeration tank (91) and the oxygen cylinder (11), the aeration tank (91) and the disinfection tank (12) and the liquid outlet of the disinfection tank (12).
5. The water treatment equipment convenient to clean as claimed in claim 2, wherein the four planes formed by the inner side wall of the square cleaning plate (66) and the cross (68) are fixedly provided with filter screens (69).
6. A water treatment device convenient for cleaning according to claim 3, characterized in that the inner bottom surface of the aeration tank (91) is provided with inclined surfaces in a shape of 'V' on both sides of the filter plate (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920976025.3U CN210215102U (en) | 2019-06-25 | 2019-06-25 | Water treatment facilities convenient to it is clean |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920976025.3U CN210215102U (en) | 2019-06-25 | 2019-06-25 | Water treatment facilities convenient to it is clean |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210215102U true CN210215102U (en) | 2020-03-31 |
Family
ID=69934062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920976025.3U Expired - Fee Related CN210215102U (en) | 2019-06-25 | 2019-06-25 | Water treatment facilities convenient to it is clean |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210215102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439895A (en) * | 2020-04-29 | 2020-07-24 | 王凯丽 | Industrial printing and dyeing mill is with sewage automatic purification handles pond |
| CN115571962A (en) * | 2022-11-09 | 2023-01-06 | 上海人民企业集团水泵有限公司 | Integrated sewage treatment equipment |
-
2019
- 2019-06-25 CN CN201920976025.3U patent/CN210215102U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439895A (en) * | 2020-04-29 | 2020-07-24 | 王凯丽 | Industrial printing and dyeing mill is with sewage automatic purification handles pond |
| CN115571962A (en) * | 2022-11-09 | 2023-01-06 | 上海人民企业集团水泵有限公司 | Integrated sewage treatment equipment |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |