CN208561980U - A kind of chemical plant sewage treatment purification device - Google Patents
A kind of chemical plant sewage treatment purification device Download PDFInfo
- Publication number
- CN208561980U CN208561980U CN201820956292.XU CN201820956292U CN208561980U CN 208561980 U CN208561980 U CN 208561980U CN 201820956292 U CN201820956292 U CN 201820956292U CN 208561980 U CN208561980 U CN 208561980U
- Authority
- CN
- China
- Prior art keywords
- shell
- purifying box
- side wall
- fixedly connected
- outlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000126 substance Substances 0.000 title claims abstract description 34
- 239000010865 sewage Substances 0.000 title claims abstract description 33
- 238000000746 purification Methods 0.000 title claims abstract description 29
- 238000011282 treatment Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 37
- 239000012535 impurity Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 4
- 244000144992 flock Species 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a kind of chemical plant sewage treatment purification devices, including shell and purifying box, the inner bottom wall of shell is fixedly connected with the lower end of purifying box by multiple support legs, the side sidewall upper perforation of the purifying box is plugged with one end of water inlet pipe, and the other end of water inlet pipe runs through the side wall of shell and reaches the exocoel of shell, the upper end of the shell, which is fixed by the bracket, is connected with motor, and the upper end of the output end connection stirring rod of motor, the lower end of the stirring rod reaches the inner cavity of purifying box and is rotatablely connected in the middle part of the inner bottom wall of purifying box, and stirring rod is connected to agitator arm positioned at one section of lower end fixing sleeve of purification box cavity, this chemical plant sewage treatment purification device structure is simple, triplicity, effectively raise the speed of sewage purification, it ensure that the purification efficiency of purification device, guarantee the cleaning of water quality, it mentions significantly High practicability.
Description
Technical field
The utility model relates to sewage treatment field, specially a kind of chemical plant sewage treatment purification device.
Background technique
Sewage typically refers to waste water centainly polluted, from life and production discharge.Sewage treatment, refer to for
Sewage is set to reach the water quality requirement for draining a certain water body or reusing, the process purified to it.Sewage treatment is extensive
Applied to building, agricultural, the every field such as traffic, the energy, petrochemical industry, environmental protection, urban landscape, medical treatment, food and drink, especially chemical industry row
Industry contains a large amount of chemical agent in generated sewage, has seriously polluted the environment, sewage-treatment plant currently on the market exists
Speed is slower when handling sewage, is not able to satisfy gradually and large amount of sewage be discharged is mass produced, meanwhile, using grid or
Filter carries out the necessary process that purification is most of sewage treatments to sewage, and the prior art uses simple filter device
Inevitably occurs the phenomenon that blocking and be not easy to cleaning to sewage water filtration, for this purpose, it is proposed that a kind of chemical plant sewage treatment purifies
Device.
Utility model content
The purpose of this utility model is to provide a kind of chemical plant sewage treatment purification devices, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions:
The inner bottom wall of a kind of chemical plant sewage treatment purification device, including shell and purifying box, shell passes through multiple supports
Foot is fixedly connected with the lower end of purifying box, and the side sidewall upper perforation of the purifying box is plugged with one end of water inlet pipe, and intakes
The other end of pipe runs through the side wall of shell and reaches the exocoel of shell, and the upper end of the shell, which is fixed by the bracket, is connected with electricity
Machine, and the upper end of the output end connection stirring rod of motor, the lower end of the stirring rod reaches the inner cavity of purifying box and and purifying box
Inner bottom wall in the middle part of rotation connection, and stirring rod be located at purification box cavity one section of lower end fixing sleeve be connected to agitator arm, it is described
One end of side side wall lower ends perforation connection outlet pipe of the purifying box far from water inlet pipe, and the other end of outlet pipe is through shell
Side wall reaches the exocoel of shell, and the through-hole of impurity collecting box roof, and impurity collecting box are offered on the bottom wall of the outlet pipe
Upper end be fixedly connected with the lower end of outlet pipe, the inclination of the inner sidewall of the outlet pipe is fixedly connected with filter screen, and outlet pipe
On water pump is installed, the upper end of outlet pipe is fixedly connected with the lower end of preventing clogging up device；
One section of upper fixing sleeve that the stirring rod is located at shell exocoel is connected to first pulley, and first pulley is connected by belt
It is connected to the second belt wheel, the upper end of shaft is fixedly connected in the middle part of the lower end of second belt wheel, and shell is run through in the lower end of shaft
Roof reach the inner cavity of shell and be rotatablely connected with the upper end of outlet pipe, the shaft is located under one section of side wall of shell inner cavity
End fixing sleeve is connected to the first cam, and shaft is located at one section of sidewall upper fixing sleeve of shell inner cavity and is connected to the second cam, described
Purifying box is fixedly connected with chemical tank far from the side sidewall upper of water inlet pipe, and the inner sidewall of chemical tank slidably connects third
Piston, and third piston is far from the one end for being vertically connected with third hydraulic stem in the middle part of the side side wall of purifying box, third hydraulic stem
The other end reach the exocoel of chemical tank and vertically connect the side side wall middle part of the second briquetting, be socketed on the third hydraulic stem
Have third spring, and one end of third spring is connect with the side wall of third piston, the other end of third spring and chemical tank it is interior
Side wall connection, the chemical tank is connected with one end of nozzle far from the side sidewall upper perforation of the second briquetting, and nozzle is another
One end runs through the side wall of purifying box and extends into the inner cavity of purifying box.
Preferably, the preventing clogging up device includes the first hydraulic fluid tank, first piston, cleaning brush, the second hydraulic fluid tank and first
The lower end of briquetting, first hydraulic fluid tank is fixedly connected with the inclination of the upper end of outlet pipe, and the inner sidewall sliding of the first hydraulic fluid tank
It is connected with first piston, inclination is fixedly connected with the upper end of the first hydraulic stem, and the first liquid in the middle part of the lower end of the first piston
The lower end of compression bar reaches the inner cavity of outlet pipe and is fixedly connected with the upper end of cleaning brush, is socketed with the first bullet on first hydraulic stem
Spring, and the upper end of the first spring and the lower end of first piston connect, the inner bottom wall of the lower end of the first spring and the first hydraulic fluid tank connects
It connects, the side wall of side side wall and filter screen of the cleaning brush far from purifying box is inconsistent, and first hydraulic fluid tank is far from purification
The side sidewall upper of case by connecting tube penetrate through connection the second hydraulic fluid tank sidewall upper, and the lower end of the second hydraulic fluid tank with go out
The upper end of water pipe is fixedly connected, and the inner cavity of second hydraulic fluid tank slidably connects second piston, and second piston is far from first
One end of the second hydraulic stem of vertical connection in the middle part of the side side wall of hydraulic fluid tank, the other end of second hydraulic stem reach the second liquid
It presses the exocoel of case and vertically connects the side side wall middle part of the first briquetting, be socketed with second spring on second hydraulic stem, and
One end of second spring and the side wall of second piston connect, and the other end of second spring is connect with the inner sidewall of the second hydraulic fluid tank.
Preferably, the tilt angle between the filter screen and outlet pipe inner sidewall is 50 degree to 70 degree.
Preferably, the inner sidewall of the water inlet pipe is fixedly connected with fine screen mesh.
Preferably, preventing rubber layer is fixedly connected on the side wall of first cam.
Compared with prior art, the utility model has the beneficial effects that
This chemical plant sewage treatment purification device structure is simple,
1, the purification medicament instilled by the Double stirring effect of stirring rod and agitator arm, medicament for matching case, high efficiency
Continuing purge handle sewage, substantially increase the speed of purification.
2, by the driving of a motor, a large amount of part and driving device are effectively saved, it is convenient to produce, and saves
A large amount of production cost, convenient for promoting.
3, the use of preventing clogging up device enables filter screen is efficient constantly to filter out dust and flocks, guaranteed
The filter efficiency of strainer guarantees the cleaning of water quality.
Triplicity effectively raises the speed of sewage purification, ensure that the purification efficiency of purification device, guarantees water quality
Cleaning, substantially increase practicability.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is preventing clogging up device structural schematic diagram.
In figure: shell 1, purifying box 2, motor 3, stirring rod 4, agitator arm 5, filter screen 6, water pump 7, impurity collecting box 8,
Preventing clogging up device 9, the first hydraulic fluid tank 91, first piston 92, cleaning brush 93, the second hydraulic fluid tank 94, the first briquetting 95, the first cam
10, first pulley 11, chemical tank 12, nozzle 13.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2:
The inner bottom wall of a kind of chemical plant sewage treatment purification device, including shell 1 and purifying box 2, shell 1 passes through multiple
Support foot is fixedly connected with the lower end of purifying box 2, and the side sidewall upper perforation of purifying box 2 is plugged with one end of water inlet pipe, and intakes
The other end of pipe runs through the side wall of shell 1 and reaches the exocoel of shell 1, and the inner sidewall of water inlet pipe is fixedly connected with fine screen mesh, into
Fine screen mesh in water pipe effectively obstructs grit and solid impurity in sewage.
The upper end of shell 1, which is fixed by the bracket, is connected with motor 3, and the upper end of the output end connection stirring rod 4 of motor 3,
The lower end of stirring rod 4 reaches the inner cavity of purifying box 2 and is rotatablely connected in the middle part of the inner bottom wall of purifying box 2, and stirring rod 4 is located at only
One section of lower end fixing sleeve for changing 2 inner cavity of case is connected to agitator arm 5, and purifying box 2 is penetrated through far from the side side wall lower ends of water inlet pipe to be connected
One end of connected water outlet pipe, and the other end of outlet pipe is on the exocoel of the side wall arrival shell 1 of shell 1, the bottom wall of outlet pipe
The through-hole of 8 roof of impurity collecting box is offered, and the upper end of impurity collecting box 8 is fixedly connected with the lower end of outlet pipe, outlet pipe
Inner sidewall inclination be fixedly connected with filter screen 6, and water pump 7 is installed on outlet pipe, the upper end of outlet pipe is fixedly connected with anti-
The lower end of blocking device 9, the tilt angle between filter screen 6 and outlet pipe inner sidewall are 50 degree to 70 degree, and filter screen 6 has
The obstructing tiny dust and flocks of effect, guarantees the cleaning of water quality.
Preventing clogging up device 9 includes the first hydraulic fluid tank 91, first piston 92, cleaning brush 93, the second hydraulic fluid tank 94 and the first pressure
The lower end of block 95, the first hydraulic fluid tank 91 is fixedly connected with the inclination of the upper end of outlet pipe, and the inner sidewall sliding of the first hydraulic fluid tank 91
It is connected with first piston 92, inclination is fixedly connected with the upper end of the first hydraulic stem, and the first liquid in the middle part of the lower end of first piston 92
The lower end of compression bar reaches the inner cavity of outlet pipe and is fixedly connected with the upper end of cleaning brush 93, is socketed with the first bullet on the first hydraulic stem
Spring, and the upper end of the first spring is connect with the lower end of first piston 92, the interior bottom of the lower end of the first spring and the first hydraulic fluid tank 91
Wall connection, side side wall and the side wall of filter screen 6 of the cleaning brush 93 far from purifying box 2 are inconsistent, and the first hydraulic fluid tank 91 is far from net
The side sidewall upper for changing case 2 connects the sidewall upper of the second hydraulic fluid tank 94, and second hydraulic fluid tank 94 by connecting tube perforation
Lower end is fixedly connected with the upper end of outlet pipe, and the inner cavity of the second hydraulic fluid tank 94 slidably connects second piston, and second piston is remote
One end of the second hydraulic stem of vertical connection in the middle part of side side wall from the first hydraulic fluid tank 91, the other end of the second hydraulic stem reach the
The exocoel of two hydraulic fluid tanks 94 simultaneously vertically connects in the middle part of the side side wall of the first briquetting 95, is socketed with the second bullet on the second hydraulic stem
Spring, and the side wall of one end of second spring and second piston connects, the inner sidewall of the other end of second spring and the second hydraulic fluid tank
Connection, the use of preventing clogging up device 9 enable filter screen 6 is efficient constantly to filter out dust and flocks, guarantee filter screen
6 filter efficiency guarantees the cleaning of water quality.
One section of upper fixing sleeve that stirring rod 4 is located at 1 exocoel of shell is connected to first pulley 11, and first pulley 11 passes through belt
It is connected with the second belt wheel, the upper end of shaft is fixedly connected in the middle part of the lower end of the second belt wheel, and the lower end of shaft is through shell 1
Roof reaches the inner cavity of shell 1 and is rotatablely connected with the upper end of outlet pipe, and one section of side wall lower ends that shaft is located at 1 inner cavity of shell are solid
Surely it is socketed with the first cam 10, and shaft is located at one section of sidewall upper fixing sleeve of 1 inner cavity of shell and is connected to the second cam, first is convex
It is fixedly connected with preventing rubber layer on the side wall of wheel 10, the first cam 10 is effectively protected, reduces collision and abrasion.
Purifying box 2 is fixedly connected with chemical tank 12, and the inner sidewall of chemical tank 12 far from the side sidewall upper of water inlet pipe
Third piston is slidably connected, and third piston is vertically connected with third hydraulic stem far from the side side wall middle part of purifying box 2
The other end of one end, third hydraulic stem reaches the exocoel of chemical tank 12 and vertically connects in the middle part of the side side wall of the second briquetting, the
Third spring is socketed on three hydraulic stems, and one end of third spring is connect with the side wall of third piston, third spring it is another
End is connect with the inner sidewall of chemical tank 12, and chemical tank 12 is connected with nozzle 13 far from the side sidewall upper perforation of the second briquetting
One end, and the other end of nozzle 13 runs through the side wall of purifying box 2 and extends into the inner cavity of purifying box 2, motor 3 and external power supply are logical
It crosses conducting wire and collectively constitutes a series circuit, water pump 7 collectively constitutes a series circuit by conducting wire with external power supply.
In this case, by water inlet pipe by sewage transport into purifying box 2, the fine screen mesh in water inlet pipe effectively obstructs grit
And solid impurity, it is then switched on external power supply, motor 3 starts, and first pulley 11 is driven to rotate, and first pulley 11 passes through belt band
Dynamic second belt wheel rotates, and the second cam rotation in shaft contradicts and squeeze the second briquetting, drives third piston in chemical tank 12
It inside moves downward, pushes the purification medicament in chemical tank 12 to instill in purifying box 2 by nozzle 13, the impurity in sewage is carried out
Flocks sedimentation；
Meanwhile motor 3 starts, and drives stirring rod 4 and agitator arm 5 to rotate, cooperates the purification medicament constantly instilled, the two
In conjunction with the process for accelerating flocks to settle after the completion of purification, connects external power supply, and water pump 7 starts, pumps out purified treatment and finish
Water, filter screen 6 effectively obstructs tiny dust and flocks, guarantees the cleaning of water quality；
Shaft rotation drives the first cam 10 to contradict and squeezes the first briquetting 95, second piston is pushed to slide to the left, and second
Hydraulic oil in hydraulic fluid tank 94 enters the first hydraulic fluid tank 91 by the connecting tube of perforation, presses first piston 92 and moves downward, clearly
Clean brush 93 scrubs filter screen 6 back and forth, by the dust and flocks push-in impurity collecting box 8 on filter screen 6, effectively guarantees filtering
The filter efficiency of net 6.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of chemical plant sewage treatment purification device, including shell (1) and purifying box (2), the inner bottom wall of shell (1) passes through more
A support leg is fixedly connected with the lower end of purifying box (2), it is characterised in that: the side sidewall upper perforation of the purifying box (2) is inserted
It is connected to one end of water inlet pipe, and the other end of water inlet pipe runs through the side wall of shell (1) and reaches the exocoel of shell (1), it is described outer
The upper end of shell (1), which is fixed by the bracket, to be connected with motor (3), and the upper end of output end connection stirring rod (4) of motor (3), institute
The lower end for stating stirring rod (4) reaches the inner cavity of purifying box (2) and is rotatablely connected in the middle part of the inner bottom wall of purifying box (2), and stirs
One section of lower end fixing sleeve that bar (4) is located at purifying box (2) inner cavity is connected to agitator arm (5), and the purifying box (2) is far from water inlet pipe
Side side wall lower ends perforation connection outlet pipe one end, and the other end of outlet pipe through shell (1) side wall reach shell
(1) exocoel offers the through-hole of impurity collecting box (8) roof on the bottom wall of the outlet pipe, and impurity collecting box (8) is upper
End is fixedly connected with the lower end of outlet pipe, and the inner sidewall inclination of the outlet pipe is fixedly connected with filter screen (6), and on outlet pipe
Water pump (7) are installed, the upper end of outlet pipe is fixedly connected with the lower end of preventing clogging up device (9)；
One section of upper fixing sleeve that the stirring rod (4) is located at shell (1) exocoel is connected to first pulley (11), and first pulley (11)
It is connected with the second belt wheel by belt, the upper end of shaft is fixedly connected in the middle part of the lower end of second belt wheel, and under shaft
Roof of the end through shell (1) reaches the inner cavity of shell (1) and is rotatablely connected with the upper end of outlet pipe, and the shaft is located at shell
(1) one section of side wall lower ends fixing sleeve of inner cavity is connected to the first cam (10), and shaft is located on one section of side wall of shell (1) inner cavity
End fixing sleeve is connected to the second cam, and the purifying box (2) is fixedly connected with chemical tank far from the side sidewall upper of water inlet pipe
(12), and the inner sidewall of chemical tank (12) slidably connects third piston, and side side wall of the third piston far from purifying box (2)
Middle part is vertically connected with one end of third hydraulic stem, and the other end of third hydraulic stem reaches the exocoel of chemical tank (12) and vertically connects
In the middle part of the side side wall for connecing the second briquetting, it is socketed with third spring on the third hydraulic stem, and one end of third spring and the
The side wall of three pistons connects, and the other end of third spring is connect with the inner sidewall of chemical tank (12), and the chemical tank (12) is separate
The side sidewall upper perforation of second briquetting is connected with one end of nozzle (13), and the other end of nozzle (13) runs through purifying box
(2) side wall and the inner cavity for extending into purifying box (2).
2. a kind of chemical plant sewage treatment purification device according to claim 1, it is characterised in that: the preventing clogging up device
It (9) include the first hydraulic fluid tank (91), first piston (92), cleaning brush (93), the second hydraulic fluid tank (94) and the first briquetting (95), institute
The lower end for stating the first hydraulic fluid tank (91) is fixedly connected with the inclination of the upper end of outlet pipe, and the inner sidewall sliding of the first hydraulic fluid tank (91)
It being connected with first piston (92), inclination is fixedly connected with the upper end of the first hydraulic stem in the middle part of the lower end of the first piston (92),
And first the lower end of hydraulic stem reach the inner cavity of outlet pipe and be fixedly connected with the upper ends of cleaning brush (93), on first hydraulic stem
It is socketed with the first spring, and the upper end of the first spring is connect with the lower end of first piston (92), the lower end of the first spring and first
The inner bottom wall of hydraulic fluid tank (91) connects, the side wall of side side wall and filter screen (6) of the cleaning brush (93) far from purifying box (2)
Inconsistent, side sidewall upper of first hydraulic fluid tank (91) far from purifying box (2) penetrates through the second liquid of connection by connecting tube
The sidewall upper of case (94) is pressed, and the lower end of the second hydraulic fluid tank (94) is fixedly connected with the upper end of outlet pipe, described second is hydraulic
The inner cavity of case (94) slidably connects second piston, and second piston is far from vertical in the middle part of the side side wall of the first hydraulic fluid tank (91)
One end of the second hydraulic stem is connected, the other end of second hydraulic stem reaches the exocoel of the second hydraulic fluid tank (94) and vertically connects
In the middle part of the side side wall of first briquetting (95), be socketed with second spring on second hydraulic stem, and one end of second spring with
The side wall of second piston connects, and the other end of second spring is connect with the inner sidewall of the second hydraulic fluid tank.
3. a kind of chemical plant sewage treatment purification device according to claim 1, it is characterised in that: the filter screen (6)
Tilt angle between outlet pipe inner sidewall is 50 degree to 70 degree.
4. a kind of chemical plant sewage treatment purification device according to claim 1, it is characterised in that: the water inlet pipe it is interior
Side wall is fixedly connected with fine screen mesh.
5. a kind of chemical plant sewage treatment purification device according to claim 1, it is characterised in that: first cam
(10) preventing rubber layer is fixedly connected on side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956292.XU CN208561980U (en) | 2018-06-21 | 2018-06-21 | A kind of chemical plant sewage treatment purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956292.XU CN208561980U (en) | 2018-06-21 | 2018-06-21 | A kind of chemical plant sewage treatment purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208561980U true CN208561980U (en) | 2019-03-01 |
Family
ID=65487635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820956292.XU Expired - Fee Related CN208561980U (en) | 2018-06-21 | 2018-06-21 | A kind of chemical plant sewage treatment purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208561980U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019242080A1 (en) * | 2018-06-21 | 2019-12-26 | 胡正云 | Chemical plant sewage processing and purifying apparatus |
| CN112195774A (en) * | 2020-10-03 | 2021-01-08 | 王玲 | Rainwater collecting device for road and bridge |
-
2018
- 2018-06-21 CN CN201820956292.XU patent/CN208561980U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019242080A1 (en) * | 2018-06-21 | 2019-12-26 | 胡正云 | Chemical plant sewage processing and purifying apparatus |
| CN112195774A (en) * | 2020-10-03 | 2021-01-08 | 王玲 | Rainwater collecting device for road and bridge |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20200621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |