CN207462876U - Water curtain machine and sewage disposal device - Google Patents
Water curtain machine and sewage disposal device Download PDFInfo
- Publication number
- CN207462876U CN207462876U CN201721448281.2U CN201721448281U CN207462876U CN 207462876 U CN207462876 U CN 207462876U CN 201721448281 U CN201721448281 U CN 201721448281U CN 207462876 U CN207462876 U CN 207462876U
- Authority
- CN
- China
- Prior art keywords
- water
- water curtain
- catch basin
- curtain machine
- casing
- 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
Landscapes
- Treating Waste Gases (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides a kind of Water curtain machine and sewage disposal device, is related to technical field of environment protection equipment, which includes casing, air inlet, exhaust outlet and the water curtain plate being fixed in casing；Catch basin is provided with below water curtain plate, catch basin is connected with waste water purification device, and the water outlet of waste water purification device is located in the airtight chamber that casing, water curtain plate and catch basin are surrounded, and water outlet is located at the top of airtight chamber；Air inlet is located at the lower part of airtight chamber, exhaust outlet is located at the top of airtight chamber, exhaust outlet is arranged on casing, it is undesirable to solve the exhaust-gas treatment effect generated in spraying process in the prior art, the technical issues of shortening service life of equipment, the Water curtain machine have the technique effects such as good, the service life of equipment length of exhaust gas washing effect.
Description
Technical field
The utility model is related to technical field of environment protection equipment, more particularly, to a kind of Water curtain machine and sewage disposal device.
Background technology
Spraying is that coating equably is injected in body surface by spray gun.Coating generally has certain toxicity, different
The coating of brand is due to component content difference toxicity difference.At present, spray coating operations generally carry out in closed space, and spraying can make
Indoor air is sprayed rich in coating.Striping operators are extra usually using spray gun spraying workpiece in spraying operation
Coating exhaust gas meeting splashes, the coating that these air diffuse not only pollutes ambient enviroment, but also can influence to operate
The health of personnel, therefore must carry out corresponding purified treatment when air discharges extraneous.
Currently used purified treatment mode is that Water curtain machine is installed in the outlet air position of spray booth, and the air of spray booth passes through
Arrange outwardly environment in Water curtain machine after generated water curtain again, Water curtain machine will disseminate aerial coating using flow type and suck
Water curtain machine bottom precipitation is taken in flow and by coating, is effectively prevent environmental pollution in this way, is played environmental-protection function.
However, spraying of the Water curtain machine mostly as paint, ink on existing market uses, it is impossible to meet making for water paint
With.Spraying in water paint is mostly to be dissolved in the lotion of water, can not be filtered, and concentration increases with the continuous accumulation of workload,
Finally become sticky, equipment scaling or even corruption, fouling is caused to form a kind of new pollution sources, need periodically to discharge and fixed
Phase cleaning equipment causes a large amount of wastes of cost and resource.
Utility model content
The first of the utility model is designed to provide a kind of Water curtain machine, to solve spraying process in the prior art
The technical issues of exhaust-gas treatment effect of middle generation is undesirable, shortening service life of equipment.
Water curtain machine provided by the utility model, including：Casing, air inlet, exhaust outlet and it is affixed on the housing
Water curtain plate.
Catch basin is provided with below the water curtain plate, the catch basin is connected with waste water purification device, and the waste water is net
Disguise the water outlet put to be located in the airtight chamber that the casing, the water curtain plate and the catch basin are surrounded, and described
Water outlet is located at the top of the airtight chamber.
The air inlet is located at the lower part of the airtight chamber, and the exhaust outlet is located at the top of the airtight chamber, institute
State exhaust outlet setting on the housing.
Further, the waste water purification device includes ceramic membrane clarifier.
Further, it is provided with to increase atomization exhaust gas and the water outlet flow contact surface below the water outlet
Long-pending baffle plate.
Further, the baffle plate is located in the airtight chamber, and the baffle plate tilt down be set to it is described
On water curtain plate and/or the casing.
It should be noted that the setting of above-mentioned baffle plate includes following three kinds of schemes.
The first：The baffle plate, which tilts down, to be set on the water curtain plate.
Second：The baffle plate, which tilts down, to be set on the casing.
The third：The baffle plate, which tilts down, to be set on the water curtain plate and the casing.
Further, the catch basin is equipped with the filter screen for filtering particulate species impurity.
Further, the water outlet is located at the top of the catch basin, and is connected with the catch basin.
Further, Storage water tank is further included, the Storage water tank is fixed in the casing, the water outlet position of the Storage water tank
In the surface of the water curtain plate.
Further, pump is further included, along the flow direction of sewage, the catch basin, the pump and the Storage water tank lead to
Pipeline is crossed to be sequentially communicated.
Along the flow direction of sewage, the catch basin, the pump and the ceramic membrane clarifier are connected successively by pipeline
It is logical.
Further, it is connected with three-way valve on the pipeline between the ceramic membrane clarifier and the Storage water tank.
The advantageous effect of Water curtain machine provided by the utility model：
In the Water curtain machine, the cascade formed on water curtain plate can be primary net to the exhaust gas progress generated in spraying process
Change, remove impurity, the impurity such as the part dust in exhaust gas, organic matter and flowed into together with the flow guttered down on water curtain plate
Form sewage in catch basin, catch basin is connected with waste water purification device, waste water purification device can be mixed with paint vehicle (such as：
Aqueous paint vehicle, paint, ink etc.) sewage purified, the sewage in the catch basin obtains after waste water purification device purifies
Compared with clean water stream, flowed out, and then from water outlet to entering the exhaust gas in closed chamber by air inlet compared with clean water stream, i.e.,：One
Secondary purified exhaust gas carries out double purification, and further the impurity such as dust, organic matter in removing exhaust gas, final acquisition are more dry
Net gas is simultaneously drained into from exhaust outlet in air.
Compared with existing Water curtain machine, the Water curtain machine of the utility model is net twice to the exhaust gas progress generated in spraying process
Change is handled, and can effectively remove the impurity such as dust, organic matter in exhaust gas, enhances washing (or purification) effect of exhaust gas so that
The gas of Water curtain machine discharge is cleaner, reduces the pollution to working environment and ambient enviroment, more environmentally-friendly, and practical
Property is stronger；Add, the waste water purification device that this Water curtain machine adds can be mixed with paint vehicle (such as：Aqueous paint vehicle, paint,
Ink etc.) sewage purified, thus the generation of paint vehicle impurity fouling on Water curtain machine can be reduced, staff is without periodically
Scale removal, so as to extend the time of m of e and service life.
The second of the utility model is designed to provide a kind of sewage disposal device, to solve spray in the prior art
The technical issues of exhaust-gas treatment effect that painting generates in the process is undesirable, shortening service life of equipment.
Sewage disposal device provided by the utility model, including：Above-mentioned Water curtain machine.
The advantageous effect of sewage disposal device provided by the utility model：
The sewage disposal device of the utility model can generate the advantageous effect of above-mentioned Water curtain machine, and details are not described herein.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of Water curtain machine that the utility model embodiment one provides；
Fig. 2 is the liquid flow schematic diagram of Water curtain machine shown in FIG. 1；
Fig. 3 is the gas flow schematic diagram of Water curtain machine shown in FIG. 1；
Fig. 4 is the gas flow schematic diagram that Water curtain machine shown in FIG. 1 adds baffle plate.
Icon：100- casings；200- water curtain plates；300- catch basins；400- waste water purification devices；500- baffle plates；
600- Storage water tanks；700- is pumped；800- three-way valves；110- air inlets；120- exhaust outlets；310- filter screens.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
Embodiment one
The present embodiment one is a kind of Water curtain machine, and referring to figs. 1 to shown in Fig. 4, which includes casing 100, air inlet
110th, exhaust outlet 120 and the water curtain plate 200 being fixed on casing 100；The lower section of water curtain plate 200 is provided with catch basin 300, collection
Sink 300 is connected with waste water purification device 400, and the water outlet of waste water purification device 400 is located at casing 100,200 sum aggregate of water curtain plate
In the airtight chamber that sink 300 is surrounded, and water outlet is located at the top of airtight chamber；Air inlet 110 is located at airtight chamber
Lower part, exhaust outlet 120 is located at the top of airtight chamber, and exhaust outlet 120 is arranged on casing 100, and air inlet 110 and exhaust
Mouth 120 is connected with airtight chamber.
It should be noted that：
1st, due to the setting of air inlet 110 and exhaust outlet 120, " airtight chamber " herein refers to relatively closed space.
2nd, water curtain plate 200 is used to form cascade, and the end face for being used to form cascade is the arcwall face outwardly protruded.
In the Water curtain machine, the cascade formed on water curtain plate 200 can carry out once the exhaust gas generated in spraying process
It purifies, the impurity such as part dust, organic matter in removing exhaust gas, the impurity is together with the flow one guttered down on water curtain plate 200
It rises and sewage is formed in inflow catch basin 300, catch basin 300 is connected with waste water purification device 400, and waste water purification device 400 can
To be mixed with paint vehicle (such as：Aqueous paint vehicle, paint, ink etc.) sewage purified, sewage in the catch basin 300 is through useless
Water purification installation 400 is obtained after purifying compared with clean water stream, is flowed out, and then to by air inlet from water outlet compared with clean water stream
110 enter the exhaust gas in closed chamber, i.e.,：Exhaust gas after primary purification, carries out double purification, further removes the ash in exhaust gas
The impurity such as dirt, organic matter, it is final to obtain cleaner gas and be drained into air from exhaust outlet 120.
Compared with existing Water curtain machine, the Water curtain machine of the present embodiment purifies the exhaust gas generated in spraying process twice
Processing can effectively remove the impurity such as dust, organic matter in exhaust gas, enhance washing (or purification) effect of exhaust gas so that should
The gas of Water curtain machine discharge is cleaner, reduces the pollution to working environment and ambient enviroment, more environmentally-friendly, and practicability
It is relatively strong；Add, the waste water purification device 400 that this Water curtain machine adds can be mixed with paint vehicle (such as：Aqueous paint vehicle, paint,
Ink etc.) sewage purified, thus the generation of paint vehicle impurity fouling on Water curtain machine can be reduced, staff is without periodically
Scale removal, so as to extend the time of m of e and service life.
In the present embodiment, with reference to shown in Fig. 1, there are gaps, the gap between water curtain plate 200 and catch basin 300 to form
The air inlet 110 stated, the exhaust gas that spraying workpiece generates, partial impurities are taken away by cascade, and the exhaust gas after primary purification is by the air inlet
Mouth 110 enters in above-mentioned airtight chamber.
In the present embodiment, waste water purification device 400 includes ceramic membrane clarifier.
300 shape of catch basin is flowed into reference to the impurity that the flow shown in Fig. 2, guttered down on cascade is adsorbed together with flow
Into sewage, the sewage in catch basin 300 enters ceramic membrane clarifier and is purified, and is used through the purified water purification of ceramic membrane clarifier
To carry out double purification to the exhaust gas after primary purification.
In the present embodiment, air exhauster is provided at exhaust outlet 120.
With reference to shown in Fig. 3, the exhaust gas after primary purification enters airtight chamber by air inlet 110, should under the action of wind turbine
Exhaust gas flows up in airtight chamber, at this point, being flowed out through the purified water purification of ceramic membrane clarifier by water outlet, as much as possible
Adsorb the impurity in the exhaust gas, most purer gas is discharged by exhaust outlet 120 in air at last.
On the basis of above-described embodiment, with reference to shown in Fig. 4, the lower section setting of the water outlet of ceramic membrane clarifier is useful
In the baffle plate 500 for increasing atomization exhaust gas and water outlet flow contact area.
The benefit that above-mentioned baffle plate 500 is set is can to increase exhaust gas in the indoor flowing time of closed chamber, also makes this useless
Gas can more fully be contacted with clean water stream, further improve the clean-up effect of exhaust gas.
Wherein, the arrangement form of baffle plate 500 can there are many.
Specifically, baffle plate 500, which tilts down, is set to the side that water curtain plate 200 forms cascade away from water curtain plate 200.
Either, baffle plate 500, which tilts down, is set on the madial wall of casing 100.
Again either, baffle plate 500 is polylith, and polylith baffle plate 500 is arranged at intervals along the flow direction of exhaust gas.
Such as：With reference to shown in Fig. 4, baffle plate 500 is set as two pieces, and lower floor's baffle plate 500, which tilts down, is set to cascade
On plate 200, upper strata baffle plate 500, which tilts down, to be set on the madial wall of casing 100.
The surface that above-mentioned baffle plate 500 is contacted with flow can be plane；Either, above-mentioned baffle plate 500 and water
The surface of stream contact is set as wavy, further increases atomization exhaust gas and the contact area of water outlet flow.
In the present embodiment, the left side of water curtain plate 200 is provided with the workbench for spraying workpiece, for the ease of spraying, work
Part is placed on the workbench.
With reference to shown in Fig. 1, since workpiece is in spraying process, inevitably has particulate species impurity and enter catch basin 300, in order to
This kind of particulate species impurity is filtered out, to prevent particulate species impurity from entering ceramic membrane clarifier, thus is additionally provided in catch basin 300
For filtering the filter screen 310 of particulate species impurity.
Wherein, the mesh of filter screen 310 is arranged as required to.
With continued reference to Fig. 1, in the present embodiment, the water outlet of ceramic membrane clarifier is located at the top of catch basin 300.
The water outlet of ceramic membrane clarifier is set to the top of catch basin 300, is to ensure to flow out from water outlet
Water of the water either after double purification is flowed into catch basin 300, so as to which the water of the Water curtain machine be made to realize recycling, to save
Water consumption, and also to reduce the discharge of sewage.
With continued reference to Fig. 1, which further includes Storage water tank 600.
Specifically, Storage water tank 600 is fixed in casing 100, the water outlet of Storage water tank 600 be located at water curtain plate 200 just on
Side, to ensure that the flow flowed out by Storage water tank 600 can downwards trickle, and then formed on water curtain plate 200 along water curtain plate 200
Cascade.
The Water curtain machine further includes pump 700.
Along the flow direction of sewage, catch basin 300, pump 700 and Storage water tank 600 are sequentially communicated by pipeline；And collect
Sink 300, pump 700 and ceramic membrane clarifier are sequentially communicated by pipeline.
In the present embodiment, three-way valve 800 is connected on the pipeline between ceramic membrane clarifier and Storage water tank 600.
The benefit that above-mentioned three-way valve 800 is set, which is that the sewage in catch basin 300 can both be entered by pump 700, to be filled with water
Slot 600 is formed for water curtain plate 200 used in cascade (primary purification of exhaust gas), and can enter ceramic membrane clarifier to the sewage
It carries out purification and obtains more clean water purification, for used in the double purification of exhaust gas, so as to which the water for making the Water curtain machine realizes repetition
It utilizes, primary supply can use the several months long, more environmentally-friendly, economize on resources during which without extraneous supply.
Wherein, ceramic membrane clarifier is connect with water outlet by pipeline, the pipeline between ceramic membrane clarifier and water outlet
On also be provided with pump 700.
It should be noted that referring to figs. 1 to shown in Fig. 4, set on the pipeline between three-way valve 800 and Storage water tank 600
It is useful for opening or closing the first valve of pipeline；It is equipped with and uses on pipeline between three-way valve 800 and ceramic membrane clarifier
In the second valve for opening or closing pipeline.
It should be noted that when using Water curtain machine spray paint, the ink, due to paint, ink spraying in it is insoluble
More in the particulate species impurity of water, the cascade and filter screen 310 formed by water curtain plate 200 can preferably remove impurity
When, primary purification can be carried out to exhaust gas by way of opening the first valve, closing the second valve.When using the cascade
It, can be by the way that the first valve and the second valve be opened simultaneously since water paint impurity is not easy to remove when machine sprays water paint
Mode purifies exhaust gas twice, to obtain purer gas to the maximum extent；At the same time, it is net by ceramic membrane
The aqueous paint vehicle impurity being dissolved in sewage can be purified by changing device, thus can be reduced aqueous paint vehicle impurity and be tied on Water curtain machine
The generation of dirt, staff is without Periodic scale removal, so as to extend the time of m of e and service life.
As known from the above, using the Water curtain machine, can according to the needs used, select suitable mode to exhaust gas, sewage into
Row purifies, and for relatively existing Water curtain machine, this Water curtain machine more saves cost, and practicability is stronger, is worth application.
Embodiment two
Embodiment second is that a kind of sewage disposal device, including：Water curtain machine in above-described embodiment one.
The sewage disposal device of the present embodiment can generate the advantageous effect of above-mentioned Water curtain machine, and details are not described herein.
In the sewage disposal device, the sewage that other processes generate can be connected by pipeline in access catch basin 300,
So as to reduce the discharge of plant effuent, waste water rationally utilizes, and has saved resource and cost；Meanwhile reduce individual sewage
Processing equipment carries out the processing of sewage, also saves the input of fund.
In the sewage disposal device, it can also be supplied through the purified water of ceramic membrane clarifier by pipeline for other processes
Water.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of Water curtain machine, which is characterized in that including：Casing, air inlet, exhaust outlet and the cascade being fixed in the casing
Plate；
Catch basin is provided with below the water curtain plate, the catch basin is connected with waste water purification device, the purification of waste water dress
The water outlet put is located in the airtight chamber that the casing, the water curtain plate and the catch basin are surrounded, and the water outlet
End is positioned at the top of the airtight chamber；
The air inlet is located at the lower part of the airtight chamber, and the exhaust outlet is located at the top of the airtight chamber, the row
Gas port is set on the housing.
2. Water curtain machine according to claim 1, which is characterized in that the waste water purification device includes ceramic membrane clarifier.
3. Water curtain machine according to claim 2, which is characterized in that be provided with to increase atomization below the water outlet
Exhaust gas and the baffle plate of the water outlet flow contact area.
4. Water curtain machine according to claim 3, which is characterized in that the baffle plate is located in the airtight chamber, and institute
It states baffle plate and tilts down and be set on the water curtain plate and/or the casing.
5. according to claim 2-4 any one of them Water curtain machines, which is characterized in that the catch basin is equipped with for filtering
The filter screen of grain class impurity.
6. Water curtain machine according to claim 5, which is characterized in that the water outlet is located at the top of the catch basin, and
It is connected with the catch basin.
7. Water curtain machine according to claim 6, which is characterized in that further include Storage water tank, the Storage water tank is fixed in described
In casing, the water outlet of the Storage water tank is located at the surface of the water curtain plate.
8. Water curtain machine according to claim 7, which is characterized in that pump is further included, along the flow direction of sewage, the collection
Sink, the pump and the Storage water tank are sequentially communicated by pipeline；
Along the flow direction of sewage, the catch basin, the pump and the ceramic membrane clarifier are sequentially communicated by pipeline.
9. Water curtain machine according to claim 8, which is characterized in that between the ceramic membrane clarifier and the Storage water tank
Three-way valve is connected on pipeline.
10. a kind of sewage disposal device, which is characterized in that including the claims 1-9 any one of them Water curtain machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448281.2U CN207462876U (en) | 2017-11-02 | 2017-11-02 | Water curtain machine and sewage disposal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448281.2U CN207462876U (en) | 2017-11-02 | 2017-11-02 | Water curtain machine and sewage disposal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207462876U true CN207462876U (en) | 2018-06-08 |
Family
ID=62262211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721448281.2U Expired - Fee Related CN207462876U (en) | 2017-11-02 | 2017-11-02 | Water curtain machine and sewage disposal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207462876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508435A (en) * | 2019-05-22 | 2019-11-29 | 浙江瑞鑫环保设备有限公司 | A kind of comprehensive water curtain air particles processing equipment |
-
2017
- 2017-11-02 CN CN201721448281.2U patent/CN207462876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508435A (en) * | 2019-05-22 | 2019-11-29 | 浙江瑞鑫环保设备有限公司 | A kind of comprehensive water curtain air particles processing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208287764U (en) | A kind of chemical emission processing unit that absorbing liquid recycles | |
| CN102421535A (en) | Paint booth equipped with purification device | |
| CN104707446B (en) | A kind of spray process abatement equipment of industrial waste gas | |
| CN105689183A (en) | Water-spinning painting room | |
| CN207462876U (en) | Water curtain machine and sewage disposal device | |
| CN207654875U (en) | Dust-extraction unit and cleaner | |
| CN212594786U (en) | A dust collector for dustless paper production | |
| CN210251860U (en) | Waste gas dust is with circulation spray set | |
| CN108465349A (en) | A kind of gas purifying equipment | |
| CN205886469U (en) | Industry flue gas wet process equipment of spraying | |
| CN109519999B (en) | Water tank spray type range hood | |
| CN208389661U (en) | A kind of Tower for purifying waste gas | |
| CN106039886A (en) | Painting waste gas treatment equipment | |
| CN214345553U (en) | Industrial waste gas treatment device | |
| CN205308053U (en) | High efficiency sprays atomizing dust removal case | |
| KR101740311B1 (en) | Wet scrubber using vortex and elimination method of noxious gas using the same | |
| CN211384246U (en) | Waste gas treatment dust collector with all-round cleaning function | |
| CN211462539U (en) | Spray adsorption tower of drying and dewatering system with wind power | |
| CN209034060U (en) | Flue dust and dirty gas cleaning plant | |
| CN203598657U (en) | Water-bath dust removal device | |
| CN104083964B (en) | Water-bath air cleaning unit | |
| CN206881392U (en) | Haze filtering system | |
| CN205683772U (en) | Coating exhaust gas treatment equipment | |
| CN211635794U (en) | A environmental protection dust collecting equipment for building engineering construction | |
| CN220609817U (en) | Loading attachment for exhaust gas purification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180608 Termination date: 20191102 |