CN207243486U - Sewage treatment potassium, sodium device - Google Patents
Sewage treatment potassium, sodium device Download PDFInfo
- Publication number
- CN207243486U CN207243486U CN201721071117.4U CN201721071117U CN207243486U CN 207243486 U CN207243486 U CN 207243486U CN 201721071117 U CN201721071117 U CN 201721071117U CN 207243486 U CN207243486 U CN 207243486U
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- China
- Prior art keywords
- woven hose
- pipe
- circulation
- centrifugal separator
- solenoid valve
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Abstract
The utility model belongs to technical field of chemical, there is provided Sewage treatment potassium, sodium device, including waste water tank, sodium chloride recovering mechanism, potassium chloride recovering mechanism, first circulation mechanism, second circulation mechanism and exchange mechanism；Sodium chloride recovering mechanism includes sequentially connected first woven hose, the first plate heat exchanger, the first evaporator, the second evaporator, the first centrifugal separator, and the discharge port of the first centrifugal separator is connected with sodium chloride tank；Potassium chloride recovering mechanism includes sequentially connected second woven hose, the second plate heat exchanger, the 3rd evaporator, the 4th evaporator, the second centrifugal separator, and the discharge port of the second centrifugal separator is connected with potassium chloride tank；The first centrifugal separator of first circulation mechanism connection and the first woven hose, the second centrifugal separator of second circulation mechanism connection and the second woven hose；The both ends of first exchange pipe are connected on first circulation pipe and the second woven hose, and the both ends of the second exchange pipe are connected on second circulation pipe and the first woven hose.The utility model has reached the organic efficiency for improving single unit system, reduces the technique effect of working time, reduces financial cost.
Description
Technical field
It the utility model is related to technical field of chemical, and in particular to Sewage treatment potassium, sodium device.
Background technology
Industrial wastewater refers to the waste water discharged in art production process and waste liquid, wherein containing the industrial production outflowed with water
The pollutant produced in materials, intermediate product, byproduct and production process, is to cause environmental pollution, is particularly water pollution
Major reason.The processing of industrial wastewater is an important process before industrial wastewater discharge, to the resource in extraction industrial wastewater
And the pollution reduced to environment has significant beneficial effect.
At present, it is right currently on the market containing substantial amounts of recyclable resource, especially potassium ion and sodium ion in industrial wastewater
The method of the recycling of kalium ion and natrium ion is by being preheated to waste water in industrial wastewater, and feed liquid carries out shwoot condensing crystallizing
Isolate potassium chloride, condensing crystallizing carried out after the preheating of feed liquid after crystallization and isolates sodium chloride, circulation repeatedly, until potassium chloride and
Sodium chloride whole Crystallization Separation；But the time that this method expends is longer, and organic efficiency is relatively low, and financial cost is higher.
Utility model content
For in the prior art the defects of, the utility model provides Sewage treatment potassium, sodium device, to improve organic efficiency,
Reduce the working time.
To reach above-mentioned purpose, the utility model adopts the following technical scheme：
Sewage treatment potassium, sodium device, including waste water tank, sodium chloride recovering mechanism, potassium chloride recovering mechanism, first circulation machine
Structure, second circulation mechanism and exchange mechanism；
The sodium chloride recovering mechanism include sequentially connected first woven hose, the first plate heat exchanger, the first evaporator,
Second evaporator, the first centrifugal separator, the first liquid outlet of the waste water tank are connected with first woven hose, and described first
The discharge port of centrifugal separator is connected with sodium chloride tank；
The potassium chloride recovering mechanism include sequentially connected second woven hose, the second plate heat exchanger, the 3rd evaporator,
4th evaporator, the second centrifugal separator, the second liquid outlet of the waste water tank are connected with second woven hose, and described second
The discharge port of centrifugal separator is connected with potassium chloride tank；
First centrifugal separator described in the first circulation mechanism connection and first woven hose, the second circulation machine
Structure connects second centrifugal separator and second woven hose；
One end of the first circulation pipe connects the liquid outlet of first centrifugal separator, second circulation mechanism bag
Include the second charge pump, second circulation pipe and second solenoid valve；
The exchange mechanism includes first and exchanges pipe and the second exchange pipe, and the both ends of the first exchange pipe are connected to
On the first circulation pipe and second woven hose, the both ends of the second exchange pipe are connected to the second circulation pipe
With on first woven hose.
As a kind of perferred technical scheme, the other end is connected on first woven hose, first charge pump and
First solenoid valve is all connected on the first circulation pipe.
As a kind of perferred technical scheme, one end of the second circulation pipe connects going out for second centrifugal separator
Liquid mouth, the other end are connected on second woven hose, and second charge pump and the second solenoid valve are all connected to described
On second circulation pipe.
As a kind of perferred technical scheme, first woven hose is equipped with the first valve, on second woven hose
Equipped with the second valve.
As a kind of perferred technical scheme, the liquid feeding end of the first exchange pipe is connected on the first circulation pipe,
And it is connected to described positioned at the upstream end of first charge pump and first solenoid valve, the described first outlet end for exchanging pipe
On second woven hose, and the first exchanging pump and first are equipped with positioned at the tract of first valve, the first exchange pipe
Exchange solenoid valve.
As a kind of perferred technical scheme, the liquid feeding end of the second exchange pipe is connected on the second circulation pipe,
And it is connected to described positioned at second charge pump and the upstream end of the second solenoid valve, the described second outlet end for exchanging pipe
On first woven hose, and the second exchanging pump and second are equipped with positioned at the tract of second valve, the second exchange pipe
Exchange solenoid valve.
Due to being had the advantages that using above technical scheme, the utility model：
Sodium chloride recovering mechanism includes sequentially connected first woven hose, the first plate heat exchanger, the first evaporator, second
Evaporator, the first centrifugal separator, the first liquid outlet of waste water tank are connected with the first woven hose, the discharging of the first centrifugal separator
Mouth is connected with sodium chloride tank；Potassium chloride recovering mechanism includes sequentially connected second woven hose, the second plate heat exchanger, the 3rd steaming
Tank, the 4th evaporator, the second centrifugal separator are sent out, the second liquid outlet of waste water tank is connected with the second woven hose, the second centrifugation point
The discharge port disembarked is connected with potassium chloride tank；The first centrifugal separator of first circulation mechanism connection and the first woven hose, second follows
Ring mechanism connects the second centrifugal separator and the second woven hose；Exchange mechanism includes the first exchange pipe and the second exchange is managed, and first
The both ends for exchanging pipe are connected on first circulation pipe and the second woven hose, and the both ends of the second exchange pipe are connected to second
On circulation pipe and the first woven hose, when the utility model is used, can be to the chlorination in waste water using sodium chloride recovering mechanism
Sodium is separated and recovered, and the potassium chloride in waste water can be separated and recovered using potassium chloride recovering mechanism, is followed using first
The waste water that first centrifugal separator exports can be transmitted back in the first woven hose by ring mechanism enters circulation and stress, so that waste water
Repeated isolation sodium chloride is carried out, until the sodium chloride separation in waste water is clean, can be by the second centrifugation using second circulation mechanism
The waste water of seperator output, which is transmitted back in the second woven hose, enters circulation and stress, so that waste water carries out repeated isolation potassium chloride,
Until the potassium chloride separation in waste water is clean, can be by the waste water after circulation and stress in sodium chloride recovering mechanism using exchange mechanism
Swapped with the waste water after circulation and stress in potassium chloride recovering mechanism, so that the potassium chloride and sodium chloride in waste water separate
Recycling is clean.
First circulation mechanism includes the first charge pump, first circulation pipe and the first solenoid valve, and one end of first circulation pipe connects
The liquid outlet of the first centrifugal separator is connect, the other end is connected on the first woven hose, and the first charge pump and the first solenoid valve connect
It is connected on first circulation pipe, when the utility model is used, going out for the first centrifugal separator can be connected using first circulation pipe
Liquid mouth and the first woven hose, the waste water after the first centrifugal separator is separated, which returns to be transported in the first plate heat exchanger, to be followed
Ring separates and recovers chlorination sodium, can provide power to the conveying of waste water using the first charge pump, can be incited somebody to action using the first solenoid valve
The passage of first circulation pipe is opened and closed.
Second circulation mechanism includes the second charge pump, second circulation pipe and second solenoid valve, and one end of second circulation pipe connects
The liquid outlet of the second centrifugal separator is connect, the other end is connected on the second woven hose, and the second charge pump and second solenoid valve connect
It is connected on second circulation pipe, when the utility model is used, going out for the second centrifugal separator can be connected using second circulation pipe
Liquid mouth and the second woven hose, the waste water after the second centrifugal separator is separated, which returns to be transported in the second plate heat exchanger, to be followed
Ring separates and recovers chlorination potassium, can provide power to the conveying of waste water using the second charge pump, can be incited somebody to action using second solenoid valve
The passage of second circulation pipe is opened and closed.
First woven hose is equipped with the first valve, and the second woven hose is equipped with the second valve, when the utility model is used,
Waste water tank can be opened and closed to the infusion channel of sodium chloride recovering mechanism, being set using the second valve can open and close
Infusion channel of the waste water tank to potassium chloride recovering mechanism.
The liquid feeding end of first exchange pipe is connected on first circulation pipe, and positioned at the upper of the first charge pump and the first solenoid valve
You Duan, the outlet end of the first exchange pipe is connected on the second woven hose, and is exchanged positioned at the tract of the first valve, first on pipe
Solenoid valve is exchanged equipped with the first exchanging pump and first, can when the utility model is used, being set using the first position for exchanging pipe
Can be waste water in the first exchange pipe using the first exchanging pump to ensure that single unit system circulation is not interfere with each other with the process exchanged
Conveying provides power, and the passage of the first exchange pipe can be closed using the first exchange solenoid valve.
The liquid feeding end of second exchange pipe is connected on second circulation pipe, and positioned at the upper of the second charge pump and second solenoid valve
You Duan, the outlet end of the second exchange pipe is connected on the first woven hose, and is exchanged positioned at the tract of the second valve, second on pipe
Solenoid valve is exchanged equipped with the second exchanging pump and second, can when the utility model is used, being set using the second position for exchanging pipe
Can be waste water in the second exchange pipe using the second exchanging pump to ensure that single unit system circulation is not interfere with each other with the process exchanged
Conveying provides power, and the passage of the first exchange pipe can be closed using the second exchange solenoid valve.
In conclusion the utility model has reached the organic efficiency for improving single unit system, the technology effect of working time is reduced
Fruit, reduces financial cost, simple in structure, easy to use, suitable for large-scale promotion and use.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all of the figs, it is similar
Element or part are generally identified by similar reference numeral.In attached drawing, each element or part might not be according to actual ratios
Draw.
Fig. 1 is the structure diagram of the utility model；
In attached drawing, 1, waste water tank, 2, sodium chloride recovering mechanism, the 21, first woven hose, the 22, first plate heat exchanger, 23,
First evaporator, the 24, second evaporator, the 25, first centrifugal separator, 26, sodium chloride tank, the 27, first valve, 3, potassium chloride
Recovering mechanism, the 31, second woven hose, the 32, second plate heat exchanger, the 33, the 3rd evaporator, the 34, the 4th evaporator, 35, second
Centrifugal separator, 36, potassium chloride tank, the 37, second valve, 4, first circulation mechanism, the 41, first charge pump, 42, first circulation
Pipe, the 43, first solenoid valve, 5, second circulation mechanism, the 51, second charge pump, 52, second circulation pipe, 53, second solenoid valve, 6,
Exchange mechanism, 61, first exchanges pipe, and 62, second exchanges pipe, and the 63, first exchanging pump, the 64, second exchanging pump, 65, first exchanges
Solenoid valve, 66, second exchanges solenoid valve.
Embodiment
The technical solution of the utility model is described in detail below in conjunction with embodiment.Following embodiments are only used for
Clearly illustrate the technical solution of the utility model, therefore be only used as example, and the utility model cannot be limited with this
Protection domain.
As shown in Figure 1, Sewage treatment potassium, sodium device, including waste water tank 1, sodium chloride recovering mechanism 2, potassium chloride recycling machine
Structure 3, first circulation mechanism 4, second circulation mechanism 5 and exchange mechanism 6；
Sodium chloride recovering mechanism 2 includes sequentially connected first woven hose 21, the first plate heat exchanger 22, the first evaporator
23rd, the second evaporator 24, the first centrifugal separator 25, the first liquid outlet of waste water tank 1 are connected with the first woven hose 21, first from
The discharge port of centrifugal separator 25 is connected with sodium chloride tank 26；
Potassium chloride recovering mechanism 3 includes sequentially connected second woven hose 31, the second plate heat exchanger 32, the 3rd evaporator
33rd, the 4th evaporator 34, the second centrifugal separator 35, the second liquid outlet of waste water tank 1 are connected with the second woven hose 31, second from
The discharge port of centrifugal separator 35 is connected with potassium chloride tank 36；
First circulation mechanism 4 connects the first centrifugal separator 25 and the first woven hose 21, the connection of second circulation mechanism 5 second
35 and second woven hose 31 of centrifugal separator；
First circulation mechanism 4 includes the first charge pump 41,42 and first solenoid valve 43 of first circulation pipe, second circulation mechanism
5 include the second charge pump 51, second circulation pipe 52 and second solenoid valve 53；
Exchange mechanism 6 includes first and exchanges the exchange pipe 62 of pipe 61 and second, and the both ends of the first exchange pipe 61 are connected to
On 42 and second woven hose 31 of first circulation pipe, the both ends of the second exchange pipe 62 are connected to second circulation pipe 52 and first defeated
In liquid pipe 21.
Wherein, the sodium chloride in waste water can be separated and recovered using sodium chloride recovering mechanism 2, is returned using potassium chloride
The potassium chloride in waste water can be separated and recovered by receiving mechanism 3, can be by the first centrifugal separator using first circulation mechanism 4
The waste water of 25 outputs, which is transmitted back in the first woven hose 21, enters circulation and stress, so that waste water carries out repeated isolation sodium chloride, directly
Sodium chloride separation into waste water is clean, and the waste water that can be exported the second centrifugal separator 35 using second circulation mechanism 5 is defeated
Send back to and enter circulation and stress in the second woven hose 31, so that waste water carries out repeated isolation potassium chloride, until the chlorination in waste water
Potassium separation is clean, can be by the waste water after circulation and stress in sodium chloride recovering mechanism 2 and potassium chloride recycling machine using exchange mechanism 6
Waste water in structure 3 after circulation and stress swaps, so that the potassium chloride and sodium chloride in waste water separate and recover totally.
The utility model has reached the organic efficiency for improving single unit system, reduces the technique effect of working time, reduces
Financial cost, it is simple in structure, it is easy to use, suitable for large-scale promotion and use.
In the present embodiment, one end of first circulation pipe 42 connects the liquid outlet of the first centrifugal separator 25, other end connection
In on the first woven hose 21, the first charge pump 41 and the first solenoid valve 43 are all connected on first circulation pipe 42, are followed using first
Endless tube 42 can connect the liquid outlet and the first woven hose 21 of the first centrifugal separator 25, after the first centrifugal separator 25 is separated
Waste water return to be transported in the first plate heat exchanger 22 and carry out multi-cycle separation recycling sodium chloride, can be with using the first charge pump 41
Conveying to waste water provides power, the passage of first circulation pipe 42 can be opened and closed using the first solenoid valve 43.
In the present embodiment, one end of second circulation pipe 52 connects the liquid outlet of the second centrifugal separator 35, other end connection
In on the second woven hose 31, the second charge pump 51 and second solenoid valve 53 are all connected on second circulation pipe 52, are followed using second
Endless tube 52 can connect the liquid outlet and the second woven hose 31 of the second centrifugal separator 35, after the second centrifugal separator 35 is separated
Waste water return to be transported in the second plate heat exchanger 32 and carry out multi-cycle separation recycling potassium chloride, can be with using the second charge pump 51
Conveying to waste water provides power, the passage of second circulation pipe 52 can be opened and closed using second solenoid valve 53.
In the present embodiment, the first woven hose 21 is equipped with the first valve 27, and the second woven hose 31 is equipped with the second valve 37,
Can open and close waste water tank 1 arrive sodium chloride recovering mechanism 2 infusion channel, using the second valve 37 set can open and
Close the infusion channel that waste water tank 1 arrives potassium chloride recovering mechanism 3.
In the present embodiment, the liquid feeding end of the first exchange pipe 61 is connected on first circulation pipe 42, and is located at the first charge pump
41 and first solenoid valve 43 upstream end, the outlet end of the first exchange pipe 61 is connected on the second woven hose 31, and positioned at first
The tract of valve 27, first, which exchanges pipe 61, is equipped with the first exchanging pump and the first exchange solenoid valve 65, utilizes first to exchange and manages
61 position, which is set, can ensure that single unit system circulation is not interfere with each other with the process exchanged, can be first using the first exchanging pump
The conveying for exchanging waste water in pipe 61 provides power, and the passage progress of pipe 61 can be exchanged first by exchanging solenoid valve 65 using first
Close.
In the present embodiment, the liquid feeding end of the second exchange pipe 62 is connected on second circulation pipe 52, and is located at the second charge pump
51 and the upstream end of second solenoid valve 53, the outlet end of the second exchange pipe 62 is connected on the first woven hose 21, and positioned at second
The tract of valve 37, second, which exchanges pipe 62, is equipped with the first exchanging pump 63 and the second exchange solenoid valve 66, utilizes second to exchange
The position of pipe 62, which is set, can ensure that single unit system circulation is not interfere with each other with the process exchanged, can be using the first exchanging pump 63
Second conveying for exchanging waste water in pipe 62 provides power, and exchanging solenoid valve 66 using second can be to the first passage for exchanging pipe 61
Closed.
Liquid level sensor and concentration sensor are both provided with inside evaporator, strength of fluid sensor is in Practical Project and work
In industry production, it is often necessary to the concentration and viscosity of some High water based fluids such as slurries are monitored on-line, to ensure optimal mistake
Journey running environment and product quality, so as to improve productivity effect；By the strength of fluid and viscosity in on-line measurement production process,
The data of fluid stream behavior can be obtained, the technology controlling and process for predicting Product Process process, transporting and product make
The operability of used time has important guiding value.
When in use, a part of waste water goes out from the first of waste water tank 1 for the Sewage treatment potassium that is provided in the present embodiment, sodium device
Flowed out in liquid mouth, into sodium chloride recovering mechanism 2, the production waste water into sodium chloride recovering mechanism 2 passes through the first plate-type heat-exchange
Device 22 recycles condensed water heat and is preheated, and the evaporator that two series connection are discharged into by the feed liquid after heating carries out shwoot concentration
Crystallization, while control feed temperature to isolate sodium chloride by the first centrifugal separator 25, the waste water after separation in 20-50 degree
The first plate heat exchanger 22, which is reentered, by first circulation mechanism 4 carries out circulation and stress；
A part of waste water is flowed out from the second liquid outlet of waste water tank 1, into potassium chloride recovering mechanism 3, into sodium chloride
The production waste water of recovering mechanism 2 recycles condensed water heat by the second plate heat exchanger 32 and is preheated, and passes through the material after heating
The evaporators that liquid is discharged into two series connection carry out shwoot condensing crystallizings, while control feed temperature in 20-50 degree, by second from
Centrifugal separator 35 isolates potassium chloride, and the waste water after separation reenters the second plate heat exchanger 32 by second circulation mechanism 5
Carry out circulation and stress；
Waste water after multi-cycle separation sodium chloride is swapped with the waste water after multi-cycle separation potassium chloride by exchange mechanism 6,
Waste water after multi-cycle separation sodium chloride enters the circulation and stress that the second plate heat exchanger 32 carries out potassium chloride, multi-cycle separation potassium chloride
Waste water afterwards enters the circulation and stress that the first plate heat exchanger 22 carries out sodium chloride.
In the specification of the utility model, numerous specific details are set forth.It is to be appreciated, however, that the reality of the utility model
Applying example can put into practice in the case of these no details.In some instances, known method, knot is not been shown in detail
Structure and technology, so as not to obscure the understanding of this description.
Finally it should be noted that：Various embodiments above 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 the technical solution described in foregoing embodiments, either to which part or complete
Portion's technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality
The scope of new each embodiment technical solution, it should all cover works as in the claim of the utility model and the scope of specification
In.
Claims (6)
1. a kind of Sewage treatment potassium, sodium device, it is characterised in that：Including waste water tank, sodium chloride recovering mechanism, potassium chloride recycling machine
Structure, first circulation mechanism, second circulation mechanism and exchange mechanism；
The sodium chloride recovering mechanism includes sequentially connected first woven hose, the first plate heat exchanger, the first evaporator, second
Evaporator, the first centrifugal separator, the first liquid outlet of the waste water tank are connected with first woven hose, first centrifugation
The discharge port of seperator is connected with sodium chloride tank；
The potassium chloride recovering mechanism includes sequentially connected second woven hose, the second plate heat exchanger, the 3rd evaporator, the 4th
Evaporator, the second centrifugal separator, the second liquid outlet of the waste water tank are connected with second woven hose, second centrifugation
The discharge port of seperator is connected with potassium chloride tank；
First centrifugal separator described in the first circulation mechanism connection and first woven hose, the second circulation mechanism connect
Lead to second centrifugal separator and second woven hose；
The first circulation mechanism includes the first charge pump, first circulation pipe and the first solenoid valve, second circulation mechanism bag
Include the second charge pump, second circulation pipe and second solenoid valve；
The exchange mechanism exchanges pipe including first and the second exchange pipe, the described first both ends for exchanging pipe are connected to described
On first circulation pipe and second woven hose, the both ends of the second exchange pipe are connected to the second circulation pipe and institute
State on the first woven hose.
2. Sewage treatment potassium according to claim 1, sodium device, it is characterised in that：One end of the first circulation pipe connects
The liquid outlet of first centrifugal separator is connect, the other end is connected on first woven hose, first charge pump and institute
The first solenoid valve is stated to be all connected on the first circulation pipe.
3. Sewage treatment potassium according to claim 2, sodium device, it is characterised in that：One end of the second circulation pipe connects
The liquid outlet of second centrifugal separator is connect, the other end is connected on second woven hose, second charge pump and institute
Second solenoid valve is stated to be all connected on the second circulation pipe.
4. Sewage treatment potassium according to claim 3, sodium device, it is characterised in that：First woven hose is equipped with the
One valve, second woven hose are equipped with the second valve.
5. Sewage treatment potassium according to claim 4, sodium device, it is characterised in that：Described first exchanges the liquid feeding end of pipe
It is connected on the first circulation pipe, and is located at the upstream end of first charge pump and first solenoid valve, described first
The outlet end for exchanging pipe is connected on second woven hose, and is exchanged positioned at the tract of first valve, described first
Pipe is equipped with the first exchanging pump and the first exchange solenoid valve.
6. Sewage treatment potassium according to claim 5, sodium device, it is characterised in that：Described second exchanges the liquid feeding end of pipe
It is connected on the second circulation pipe, and is located at the upstream end of second charge pump and the second solenoid valve, described second
The outlet end for exchanging pipe is connected on first woven hose, and is exchanged positioned at the tract of second valve, described second
Pipe is equipped with the second exchanging pump and the second exchange solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721071117.4U CN207243486U (en) | 2017-08-25 | 2017-08-25 | Sewage treatment potassium, sodium device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721071117.4U CN207243486U (en) | 2017-08-25 | 2017-08-25 | Sewage treatment potassium, sodium device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207243486U true CN207243486U (en) | 2018-04-17 |
Family
ID=61882348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721071117.4U Expired - Fee Related CN207243486U (en) | 2017-08-25 | 2017-08-25 | Sewage treatment potassium, sodium device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207243486U (en) |
-
2017
- 2017-08-25 CN CN201721071117.4U patent/CN207243486U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20210825 |