CN208865441U - A kind of tail gas eluting column - Google Patents
A kind of tail gas eluting column Download PDFInfo
- Publication number
- CN208865441U CN208865441U CN201821563837.7U CN201821563837U CN208865441U CN 208865441 U CN208865441 U CN 208865441U CN 201821563837 U CN201821563837 U CN 201821563837U CN 208865441 U CN208865441 U CN 208865441U
- Authority
- CN
- China
- Prior art keywords
- tower body
- fixed
- tail gas
- filter material
- collection bucket
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 37
- 239000000463 material Substances 0.000 abstract description 24
- 239000007921 spray Substances 0.000 abstract description 19
- 238000005406 washing Methods 0.000 abstract description 19
- 239000006210 lotion Substances 0.000 abstract description 17
- 229920000742 Cotton Polymers 0.000 abstract description 5
- 239000006004 Quartz sand Substances 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004745 nonwoven fabric Substances 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 4
- 239000003610 charcoal Substances 0.000 abstract description 3
- 238000000746 purification Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 4
- 238000010828 elution Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a kind of tail gas eluting column, including tower body, gas collection bucket, sieve plate, multiple filter material layers, multiple spray heads, head tank, multiple blast fences, water tank and aspirator.Gas collection bucket is configured to low wide and up narrow, and gas collection bucket is fixed on the inside of tower body.Sieve plate level is fixed on the inner sidewall of tower body, and sieve plate is fixed at the upper quarrel of gas collection bucket, and multiple filter material layers are stacked and placed on the top of sieve plate from the bottom up.Filter material layer is configured to three, and three filter material layers are sequentially filled active charcoal, quartz sand and non-woven fabrics filter cotton from the bottom to top.Blast fence is configured to herringbone plate; pass through setting gas collection bucket and filter material layer; tail gas set can uniformly be passed through in multiple filter material layers; by being filtered for multiple times; tail gas by filter material layer filtering can also be cleaned by the washing lotion that blast fence and spray head spray, and harmful components contained by the tail gas of final output are few, even without; so that tail gas reaches the standard of discharge, environment is protected.
Description
Technical field
The utility model relates to purification device fields, more particularly to a kind of tail gas eluting column.
Background technique
During medicine production, various exhaust gas can be generated, due to entrainment of some productions in these exhaust gas
Residual component in the process, if direct emission, it will large effect is caused to environment.Therefore enterprise discharges in exhaust gas
It is preceding that certain processing can be all carried out to exhaust gas, to eliminate the residual component in exhaust gas.Purification style used at present is to use
Jet elution, tail gas is imported into and carries out drenching purification in eluting column.But elution purifying column is all using commonly straight at present
The mode of elution is connect, therefore the harmful components in tail gas can not sometimes completely remove, however it remains in tail gas.
Utility model content
In order to overcome the drawbacks of the prior art, the technical problem to be solved by the utility model is to propose a kind of tail gas leaching
Tower is washed, tail gas can be put together, and the filtration, purification Jing Guo multilayer, allows the harmful substance in tail gas thorough
It is cleaned elimination, achievees the purpose that protect environment.
For this purpose, the utility model uses following technical scheme:
The utility model provides a kind of tail gas eluting column, including tower body, gas collection bucket, sieve plate, multiple filter material layers, multiple
Spray head, head tank, multiple blast fences, water tank and aspirator.The gas collection bucket is fixed on the inside of the tower body, and
Described wider one end of gas collection bucket is downward.The sieve plate level is fixed on the inner sidewall of the tower body, and the sieve plate is solid
At the upper quarrel of the gas collection bucket, multiple filter material layers are stacked and placed on the top of the sieve plate from the bottom up.The filter
The bed of material is configured to three, and three filter material layers are sequentially filled active charcoal, quartz sand and non-woven fabrics filtering from the bottom to top
Cotton.The blast fence is configured to herringbone plate, and multiple blast fences are fixed on the inner sidewall of the tower body, multiple described
Spray head is fixed on the inner roof wall of the tower body, and the head tank is fixed by the bracket in the top of the tower body, and multiple institutes
Spray head is stated to be connected to by the mother tube through the tower body roof with the head tank.The right side wall of the tower body is communicated with
The left side wall of escape pipe and drainpipe, the tower body is fixed with air inlet pipe.The escape pipe is located at the tower body right side wall
Upper end, and the escape pipe is also fixedly connected with the aspirator.The drainpipe is located at the lower section of the gas collection bucket, the water
Case is located at the right side of the tower body, and the drainpipe is connected to the top of the water tank.
In the utility model preferably technical solution, the aspirator includes inflator, conical lid, negative-pressure air fan, described
Conical lid is fixed on the top of the inflator, and the negative-pressure air fan is located at the inside of the inflator, on the front end face of the inflator
Offer gas outlet.The escape pipe is connected to through the bottom wall of the inflator with the negative-pressure air fan.
In the utility model preferably technical solution, the tail gas eluting column further includes force (forcing) pump.The force (forcing) pump is solid
Due to the top of the head tank, and the force (forcing) pump is connected to the head tank.
It further include barometer in the utility model preferably technical solution.The barometer is fixed on the tower body
Top, and the barometer is connected to the tower body.
In the utility model preferably technical solution, the tail gas eluting column further includes check-valves.The check-valves is solid
Due on the drainpipe.
In the utility model preferably technical solution, the tail gas eluting column further includes ph sensor.The ph sensing
Device is fixed on the inner bottom wall of the water tank.
In the utility model preferably technical solution, the tail gas eluting column further includes circulating water pipe and recirculated water
Pump.The both ends of the circulating water pipe are connected to the roof of the bottom of the water tank and the head tank respectively, the recirculated water
Pump is fixed on the circulating water pipe.
The utility model has the following beneficial effects:
A kind of tail gas eluting column provided by the utility model can be by tail gas collection by setting gas collection bucket and filter material layer
Close it is unified by multiple filter material layers, by being filtered for multiple times, tail gas by filter material layer filtering can also by blast fence and
The washing lotion that spray head sprays is cleaned, and harmful components contained by the tail gas of final output are few, even without so that tail gas reaches
The standard of discharge protects environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the tail gas eluting column that specific embodiment of the present invention provides.
In figure:
1, tower body, 21, gas collection bucket, 22, sieve plate, 23, filter material layer, 24, spray head, 25, head tank, 26, force (forcing) pump,
27, blast fence, 28, air inlet pipe, 29, drainpipe, 20, escape pipe, 31, water tank, 32, check-valves, 33, ph sensor, 34, original
Expects pipe, 41, circulating water pipe, 42, water circulating pump, 5, aspirator 52, inflator, 51, conical lid, 53, negative-pressure air fan, 6, barometer.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, provide a kind of tail gas eluting column in embodiment, including it is tower body 1, gas collection bucket 21, sieve plate 22, more
A filter material layer 23, multiple spray heads 24, head tank 25, multiple blast fences 27, water tank 31 and aspirator 5.Gas collection bucket 21 is solid
Due to the inside of tower body 1, and the wider one end of gas collection bucket 21 is downward.22 level of sieve plate is fixed on the inner sidewall of tower body 1, and filters
Web plate 22 is fixed at the upper quarrel of gas collection bucket 21, and multiple filter material layers 23 are stacked and placed on the top of sieve plate 22 from the bottom up.Filtrate
Layer 23 is configured to three, and filter material layer 23 is that a cuboid frame, the inside as made by hard iron sieve can load various objects
Material, three filter material layers 23 are sequentially filled active charcoal, quartz sand and non-woven fabrics filter cotton from the bottom to top.Active carbon have compared with
Strong absorption adsorptivity can draw particulate matter and the biggish substance of smell in tail gas, and quartz sand can remove tail gas
In organic matter, colloidal particles, microorganism, chlorine, odor and part heavy metal ion etc., last non-woven fabrics filter cotton tissue dredges
Pine, high voidage increase the pollutant holding capability of impurity, belong to compound retention mode, can effectively remove solid and soft particle.Air-flow
Baffle 27 is configured to herringbone plate, and herringbone plate in one end upward, both ends are arranged towards lower-left bottom right respectively.And multiple air-flow gears
27 gap setting of plate is both secured to the inner sidewall of tower body 1, and multiple spray heads 24 are fixed on the inner roof wall of tower body 1, and head tank 25 is logical
The top that bracket is fixed on tower body 1 is crossed, and multiple spray heads 24 pass through the mother tube 34 and head tank 25 through 1 top of tower body
Connection.The right side wall of tower body 1 is communicated with escape pipe 20 and drainpipe 29, and the left side wall of tower body 1 is fixed with air inlet pipe 28.Outlet
Pipe 20 is located at the upper end of 1 right side wall of tower body, and escape pipe 20 is also fixedly connected with aspirator 5.Drainpipe 29 is located at gas collection bucket 21
Lower section, water tank 31 is located at the right side of tower body 1, and drainpipe 29 is connected to the top of water tank 31.Tail caused by other mechanisms
Gas is entered in tower body 1 by air inlet pipe 28, is gathered in the bottom of tower body 1 before this, then due to tail gas is more and more, can be forced
Gas is toward rising, and during toward rising, since air inlet pipe 28 is located at the lower section of gas collection bucket 21, gas can flow to gas
At gas collection bucket 21, gas can be gathered together by gas collection bucket 21, then be discharged from the upper quarrel of gas collection bucket 21.At this time inside tower body 1
Spray head 24 also start to start, the purification liquid in head tank 25 is atomized into small liquid pearl and sprays out, institute in the present embodiment
Using is ST-5 type atomizer.Small liquid pearl is atomized to fall on before this on blast fence 27, it is then upper from blast fence 27 again
Onto multiple filter material layers 23, each layer material in filter material layer 23 can also be moistened by washing lotion, and tail gas rises at this time, come several filters
In the bed of material 23, some solid granulates in tail gas, will be filtered out by these wet filtrates, simultaneously because quartz sand at this time
And after non-woven fabrics filter cotton is wet, the contact area of washing lotion and tail gas becomes larger, so that the harmful substance in tail gas obtains sufficiently
Reaction, remove as much as possible.Then, tail gas continues to rise, and comes at blast fence 27, and blast fence 27 can slow down tail gas
The rate of climb, allow tail gas to carry out the contact of sufficient longer time with washing lotion, guarantee that the harmful substance in tail gas can
With obtain the sufficient time by it is counter fall.Tail gas is then just discharged from escape pipe 20.The aspirator 5, Ke Yi set on escape pipe 20
Tail gas flow velocity starts when slower, the tail gas in tower body 1 is twitched, so that the flow velocity of tail gas is accelerated.After washing lotion in tower is scrubbed
The bottom of tower body 1 is fallen on, is then flowed in water tank 31 from drainpipe 29, water pump also can be set on drainpipe 29 and come to tower body 1
Interior water is extracted, and storing in water tank 31 secondary can use.And drainpipe 29 is arranged lower than air inlet pipe 28, be for
The gas come in from air inlet pipe 28 is avoided just not flow away from drainpipe 29 by processing also.And escape pipe 20 is due to needing to be discharged
Finally elute the gas of completion, and drainpipe 29 needs to be discharged the washing lotion for being gathered in 1 bottom of tower body, therefore escape pipe 20 is arranged
Height is higher than drainpipe 29.
In order to enable dust catcher can carry out air-breathing operation well, further, aspirator 5 includes inflator 52, taper
Lid 51, negative-pressure air fan 53, conical lid 51 are fixed on the top of inflator 52, and negative-pressure air fan 53 is located at the inside of inflator 52, inflator 52
Front end face on offer gas outlet.Escape pipe 20 is connected to through the bottom wall of inflator 52 with negative-pressure air fan 53.Negative-pressure air fan 53 is opened
Initiating is made, and generates negative pressure in escape pipe 20, generates an attraction to the tail gas in tower body 1, it is accelerated to flow to aspirator 5,
And then it is discharged from gas outlet.
In order to enable spray head 24 can rapidly spray high-pressure water mist, further, tail gas eluting column further includes pressurization
Pump 26.Force (forcing) pump 26 is fixed on the top of head tank 25, and force (forcing) pump 26 is connected to head tank 25.Force (forcing) pump 26 is toward head tank 25
Interior conveying high-pressure gas, so that the air pressure in tank increases, the washing lotion in tank just accelerates to flow to spray head 24, spray head under high pressure
24 will accelerate to spray water mist.
It further include barometer 6 further in order to which the air pressure inside tower body 1 can be monitored in real time.Barometer 6 is fixed on
The top of tower body 1, and barometer 6 is connected to tower body 1.Barometer 6 can detecte the air pressure inside tower body 1, by analyzing other
It can learn the amount of the tail gas inside tower body 1, be arranged to carry out reasonable purification, to achieve the purpose that high-efficient purification.
The washing lotion for having eluted tail gas in order to prevent is gathered in 1 bottom of tower body, further, tail gas eluting column for a long time
It further include check-valves 32.Check-valves 32 is fixed on drainpipe 29.Washed washing lotion can flow to water tank from drainpipe 29
In 31, check-valves 32 is set in drainpipe 29, can prevent washing lotion from flowing back, prevent the washing lotion flowed in water tank 31 from flowing back into tower
In body 1.
In order to detect whether the washing lotion in water tank 31 can recycle, further, tail gas eluting column further includes that ph is passed
Sensor 33.Ph sensor 33 is fixed on the inner bottom wall of water tank 31.Say that the ph sensor 33 of use is configured to E- in the present embodiment
201-C conventional type sensor can be accurately detected in water tank 31 the acid-base property of the washing lotion of washed tail gas, by dividing
Whether the acid-base property of analysis washing lotion may determine that its there are also essence function, can be with if its acid-base property is also within the appropriate range
Gas washing purification is carried out again.
In order to recycle washing lotion, further, tail gas eluting column further includes circulating water pipe 41 and water circulating pump
42.The both ends of circulating water pipe 41 are connected to the roof of the bottom of water tank 31 and head tank 25 respectively, and water circulating pump 42 is fixed on
On circulating water pipe 41.The washing lotion of qualifying is examined in water tank 31, raw material can be extracted by water circulating pump 42 and circulating water pipe 41
In tank 25, gas washing is carried out again, is economized on resources.
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality
In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality
It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to
In the range of the utility model protection.
Claims (7)
1. a kind of tail gas eluting column, it is characterised in that: including tower body (1), gas collection bucket (21), sieve plate (22), multiple filter material layers
(23), multiple spray heads (24), head tank (25), multiple blast fences (27), water tank (31) and aspirator (5)；
The gas collection bucket (21) is fixed on the inside of the tower body (1), and the gas collection bucket (21) wider one end is downward；
Sieve plate (22) level is fixed on the inner sidewall of the tower body (1), and the sieve plate (22) is fixed on the collection
At the upper quarrel of gas bucket (21), multiple filter material layers (23) are stacked and placed on the top of the sieve plate (22) from the bottom up；
The filter material layer (23) is configured to three, and three filter material layers (23) are sequentially filled active charcoal, quartz from the bottom to top
Sand and non-woven fabrics filter cotton；
The blast fence (27) is configured to herringbone plate, and multiple blast fences (27) are fixed on the interior of the tower body (1)
Side wall,
Multiple spray heads (24) are fixed on the inner roof wall of the tower body (1), and the head tank (25) is fixed on the tower body
(1) top, and multiple spray heads (24) pass through the mother tube (34) and the raw material through the tower body (1) roof
Tank (25) connection；
The right side wall of the tower body (1) is communicated with escape pipe (20) and drainpipe (29), and the left side wall of the tower body (1) is fixed
There are air inlet pipe (28)；
The escape pipe (20) is located at the upper end of the tower body (1) right side wall, and the escape pipe (20) also with the aspirator
(5) it is fixedly connected；
The drainpipe (29) is located at the lower section of the gas collection bucket (21), and the water tank (31) is located at the right side of the tower body (1),
And the drainpipe (29) is connected to the top of the water tank (31).
2. a kind of tail gas eluting column according to claim 1, it is characterised in that:
The aspirator (5) includes inflator (52), conical lid (51), negative-pressure air fan (53)；
The conical lid (51) is fixed on the top of the inflator (52), and the negative-pressure air fan (53) is located at the inflator (52)
Inside offers gas outlet on the front end face of the inflator (52)；
Bottom wall of the escape pipe (20) through the inflator (52) is connected to the negative-pressure air fan (53).
3. a kind of tail gas eluting column according to claim 1, it is characterised in that:
It further include force (forcing) pump (26)；
The force (forcing) pump (26) is fixed on the top of the head tank (25), and the force (forcing) pump (26) and the head tank (25)
Connection.
4. a kind of tail gas eluting column according to claim 1, it is characterised in that:
It further include barometer (6)；
The barometer (6) is fixed on the top of the tower body (1), and the barometer (6) is connected to the tower body (1).
5. a kind of tail gas eluting column according to claim 1, it is characterised in that:
It further include check-valves (32)；
The check-valves (32) is fixed on the drainpipe (29).
6. a kind of tail gas eluting column according to claim 1, it is characterised in that:
It further include ph sensor (33)；
The ph sensor (33) is fixed on the inner bottom wall of the water tank (31).
7. a kind of tail gas eluting column according to claim 6, it is characterised in that:
It further include circulating water pipe (41) and water circulating pump (42)；
The both ends of the circulating water pipe (41) connect with the roof of the bottom of the water tank (31) and the head tank (25) respectively
Logical, the water circulating pump (42) is fixed on the circulating water pipe (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563837.7U CN208865441U (en) | 2018-09-20 | 2018-09-20 | A kind of tail gas eluting column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563837.7U CN208865441U (en) | 2018-09-20 | 2018-09-20 | A kind of tail gas eluting column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208865441U true CN208865441U (en) | 2019-05-17 |
Family
ID=66468648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821563837.7U Expired - Fee Related CN208865441U (en) | 2018-09-20 | 2018-09-20 | A kind of tail gas eluting column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208865441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569579A (en) * | 2019-02-19 | 2020-08-25 | 秦月云 | Water purifying smoke eliminating dust remover |
-
2018
- 2018-09-20 CN CN201821563837.7U patent/CN208865441U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569579A (en) * | 2019-02-19 | 2020-08-25 | 秦月云 | Water purifying smoke eliminating dust remover |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205586704U (en) | Exhaust gas circulation processing apparatus | |
| CN207126298U (en) | A kind of workshop dedusting and purifying device | |
| CN207913445U (en) | A kind of purification of chemical waste gas processing unit | |
| CN206746314U (en) | A kind of foul gas processing unit | |
| CN208865441U (en) | A kind of tail gas eluting column | |
| CN211987803U (en) | Waste rubber recycling and dust removing device | |
| CN108854379A (en) | A kind of high-efficiency environment friendly flue gas spray filter | |
| CN106861337A (en) | A kind of landfill air-cleaning system | |
| CN201260650Y (en) | A vacuum cleaner with a hydro jet | |
| CN106902580A (en) | The flue gas purifying method of grinding machine | |
| CN207899198U (en) | A kind of powder purification apparatus | |
| CN209254390U (en) | A kind of industry dusty gas filtering and purifying | |
| CN106422626A (en) | Multi-level efficient flue gas treatment device | |
| CN208824146U (en) | A kind of foam dust-extraction unit | |
| CN207745693U (en) | A kind of plastic pellet production environment-friendly type purifier | |
| CN104147880A (en) | Dedusting and purifying device for screening working procedure | |
| CN210905500U (en) | Cyclone dust removal membrane type separation device for treating tail gas of fertilizer granulation high tower | |
| CN208340387U (en) | A kind of rinsing type environmental protection flue gas purifying equipment | |
| CN209752453U (en) | Circulating wet-type gas purifying and filtering system | |
| CN208642160U (en) | A kind of dust-removing device of Chinese medicine frying machine | |
| CN208115390U (en) | A kind of multi-composite type spray column | |
| CN218249329U (en) | An air box type long bag low pressure pulse dust removal equipment | |
| CN214389261U (en) | Environment-friendly air cleaner | |
| CN221412707U (en) | Laboratory waste gas collecting system | |
| CN205760333U (en) | A kind of automatization environmental purification tower |
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: 20190517 Termination date: 20190920 |