CN207662189U - A kind of novel environment friendly ceramic tile baking furnace - Google Patents
A kind of novel environment friendly ceramic tile baking furnace Download PDFInfo
- Publication number
- CN207662189U CN207662189U CN201721596752.4U CN201721596752U CN207662189U CN 207662189 U CN207662189 U CN 207662189U CN 201721596752 U CN201721596752 U CN 201721596752U CN 207662189 U CN207662189 U CN 207662189U
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- Prior art keywords
- temperature section
- low
- ceramic tile
- high temperature
- temperature zone
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
The utility model belongs to ceramic tile kiln technical field, more particularly, to a kind of novel environment friendly ceramic tile baking furnace, including the high temperature section being connected on kiln, middle-temperature section and low-temperature zone, the high temperature section, through equipped with a conveyer belt for exporting ceramic tile in middle-temperature section and low-temperature zone, and high temperature section, it is additionally provided with heat exchange mechanisms in middle-temperature section and low-temperature zone, and one end of heat exchange mechanisms is through on the outside of kiln and connects steam generator, the steam output end of the steam generator is connect with steam turbine, the power output shaft of the steam turbine is connected separately with the first transmission mechanism by transmission case, second transmission mechanism and generator, first transmission mechanism is sequentially connected with conveyer belt；Airflow circulating mechanism is equipped with inside the high temperature section, middle-temperature section and low-temperature zone, the airflow circulating mechanism is sequentially connected with the second transmission mechanism.Advantage is：The utility model can not only recycle the heat in ceramic tile transmission process, while can also accelerate the cooling of ceramic tile.
Description
Technical field
The utility model belongs to ceramic tile kiln technical field, more particularly, to a kind of novel environment friendly ceramic tile baking furnace.
Background technology
Currently, the product in the kiln for firing ceramic tile will pass through high temperature section, middle-temperature section and low temperature after high temperature firing
Section, for product to cool down, the cooling of high temperature section, middle-temperature section and low-temperature zone is all to be thrown cold wind in kiln by wind turbine
Portion, and hot wind is taken away, wind turbine consumes a large amount of energy during the work time, and hot wind is pumped waste heat source.
In the prior art, although there is the environment protection tile baking furnace for being recycled hot wind, these environment protection tiles are burnt
Stove processed is all generally to be recycled hot wind to heat again after the extraction of high temperature section, middle-temperature section and low-temperature zone, this heat
The mode of recycling needs to cool down ceramic tile from ambient inlet air, can not form the interior cycle of cooling system, then
Lead to the inefficient of heat recovery, while the gas Jing Guo heat recovery can still carry a large amount of waste heat, if directly arranged
Enter interior, cause indoor temperature excessively high, influences the working environment of worker.
For this purpose, it is proposed that a kind of novel environment friendly ceramic tile baking furnace solves the above problems.
Utility model content
The purpose of this utility model is in view of the above-mentioned problems, providing a kind of can both carry out the heat in ceramic tile transmission process
Recycling, while can also accelerate the cooling novel environment friendly ceramic tile baking furnace of ceramic tile.
In order to achieve the above objectives, the utility model uses following technical proposal：
A kind of novel environment friendly ceramic tile baking furnace, including the high temperature section, middle-temperature section and the low-temperature zone that are connected on kiln, the height
Run through in temperature section, middle-temperature section and low-temperature zone and be equipped with a conveyer belt for exporting ceramic tile, and high temperature section, middle-temperature section and low-temperature zone
Heat exchange mechanisms are inside additionally provided with, and one end of heat exchange mechanisms is through on the outside of kiln and connects steam generator, the steam generation
The steam output end of device is connect with steam turbine, and the power output shaft of the steam turbine is connected separately with the first transmission by transmission case
Mechanism, the second transmission mechanism and generator, first transmission mechanism are sequentially connected with conveyer belt；The high temperature section, middle-temperature section
Be equipped with airflow circulating mechanism inside low-temperature zone, the airflow circulating mechanism is sequentially connected with the second transmission mechanism, described to change
Heat engine structure includes multiple rows of heat exchanger tube of setting side on the conveyor belt, the heat exchanger tube by several pipe supports be connected to high temperature section, in
On the inner wall of temperature section and low-temperature zone, the output end of the heat exchanger tube is connect by the first water tank with steam generator, and heat exchanger tube
Input terminal circulation pipe is connected with by the second water tank, the other end of the circulation pipe and the water outlet of steam turbine connect.
In above-mentioned novel environment friendly ceramic tile baking furnace, second water tank is internally provided with temperature sensor, and temperature
The signal input part of the signal output end of sensor and controller connects, and the signal output end of controller and is connected to circulation pipe
On circulating pump electrical connection.
In above-mentioned novel environment friendly ceramic tile baking furnace, the transmission case includes babinet, the power output of the steam turbine
Axis sequentially passes through the first helical gear in babinet and the second helical gear and the output axis connection with generator, first helical gear
Upside engagement be connected with third helical gear, the third helical gear passes through the second transmission mechanism and company of airflow circulating mechanism
Connect, the second helical gear side engagement is connected with the 4th helical gear, the 4th helical gear by the first transmission mechanism with
Conveyer belt is sequentially connected.
In above-mentioned novel environment friendly ceramic tile baking furnace, first transmission mechanism includes coaxially connected with the 4th helical gear
The first transmission shaft（31）, first transmission shaft（31）It is through to the outside of babinet and is connected with driving pulley, the active
Belt wheel is sequentially connected by the drive roll of belt and conveyer belt.
In above-mentioned novel environment friendly ceramic tile baking furnace, the conveyer belt is located in high temperature section, middle-temperature section and low-temperature zone
Part downside is equipped with the carrying roller lifted to its upper link plate, both ends and high temperature section, middle-temperature section and the low-temperature zone side of the carrying roller
Wall rotates.
In above-mentioned novel environment friendly ceramic tile baking furnace, second transmission mechanism includes coaxially connected with third helical gear
Second driving shaft（32）, the second driving shaft（32）It is through to the outside of babinet and is connected with drive sprocket（35）, described
Drive sprocket（35）It is connect with airflow circulating mechanism driving.
In above-mentioned novel environment friendly ceramic tile baking furnace, the airflow circulating mechanism includes being arranged in high temperature section, middle-temperature section
With multiple centrifugal blowers inside low-temperature zone roof, the drive shaft of the centrifugal blower（33）Be through to high temperature section, middle-temperature section and
The upside of low-temperature zone is simultaneously connected with driven sprocket（34）Connection, the driven sprocket（34）Pass through chain and drive sprocket（35）Even
Connect, be connected to inside the inlet end of the centrifugal blower and high temperature section, middle-temperature section and low-temperature zone, the outlet side of the centrifugal blower and
Gas channel is connected in high temperature section, middle-temperature section and low-temperature zone left and right sidewall, on the high temperature section, middle-temperature section and low-temperature zone inner wall
Equipped with the venthole being connected to gas channel.
Compared with prior art, the advantages of the utility model environment protection tile baking furnace, is：The utility model passes through in high temperature
Conveyer belt for conveying ceramic tile is set in section, middle-temperature section and low-temperature zone, it can be achieved that ceramic tile continuous output, in the upper of conveyer belt
Heat exchange mechanisms are arranged in side, and the heat in high temperature section, middle-temperature section and low-temperature zone is taken away using the cooling water flowed in heat exchange mechanisms,
And then cooling down is carried out to the ceramic tile in transmission process；By connecting heat exchange mechanisms with steam generator, and steam is sent out
Raw device is connect with steam turbine, is driven steam turbine acting using high-temperature steam, is reduced the waste of the energy；By high temperature section, in
Setting airflow circulating mechanism in temperature section and low-temperature zone not only can carry out circulating air cooling to the ceramic tile of transmission process, while also avoid
Heat losses reduce energy loss, the low problem of the energy recovery rate of environment-protection kiln in the prior art of solution；By the way that wind will be centrifuged
Machine is connect with transmission case, is driven centrifugal blower work using steam turbine, is avoided that actuating unit is in addition arranged, improve using energy source
Rate reduces the cost of ceramic tile cooling.
Description of the drawings
Fig. 1 is a kind of perspective view of novel environment friendly ceramic tile baking furnace provided by the utility model；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 is the perspective view of transmission case in a kind of novel environment friendly ceramic tile baking furnace provided by the utility model.
In figure, 1 kiln, 2 high temperature sections, 3 middle-temperature sections, 4 low-temperature zones, 5 ceramic tiles, 6 conveyer belts, 7 heat exchange mechanisms, 8 steam generations
Device, 9 steam turbines, 10 first transmission mechanisms, 11 second transmission mechanisms, 12 generators, 13 circulating pumps, 14 airflow circulating mechanisms, 15
Heat exchanger tube, 16a pipe supports, 16 first water tanks, 17 second water tanks, 18 circulation pipes, 19 transmission cases, 20 babinets, 21 first helical gears, 22
Second helical gear, 23 third helical gears, 24 the 4th helical gears, 25 driving pulleys, 26 carrying rollers, 27 centrifugal blowers, 28 chains, 29 gas
Circulation road, 30 ventholes, 31 first transmission shafts, 32 second driving shafts, 33 drive shafts, 34 driven sprockets, 35 drive sprockets.
Specific implementation mode
Following embodiment only exists in illustrative purpose, without being intended to limitation the scope of the utility model.
Embodiment
As shown in Figs. 1-3, a kind of novel environment friendly ceramic tile baking furnace, including be connected on kiln 1 high temperature section 2, middle-temperature section 3
With low-temperature zone 4, high temperature section 2, middle-temperature section 3 and low-temperature zone 4 are interior to be run through equipped with a conveyer belt 6 for exporting ceramic tile 5, and high temperature
Heat exchange mechanisms 7 are additionally provided in section 2, middle-temperature section 3 and low-temperature zone 4, and one end of heat exchange mechanisms 7 is through to 1 outside of kiln and connects
The steam output end of steam generator 8, steam generator 8 is connect with steam turbine 9, and the power output shaft of steam turbine 9 passes through transmission
Case 19 is connected separately with the first transmission mechanism 10, the second transmission mechanism 11 and generator 12, the first transmission mechanism 10 and conveyer belt 6
It is sequentially connected；Airflow circulating mechanism 14, airflow circulating mechanism 14 and are equipped with inside high temperature section 2, middle-temperature section 3 and low-temperature zone 4
Two transmission mechanisms 11 are sequentially connected.
Wherein, heat exchange mechanisms 7 include the multiple rows of heat exchanger tube 15 being arranged in 6 upside of conveyer belt, and two rows heat exchanger tube 15 exists
Setting is spaced on horizontal direction, to improve heat transfer effect, heat exchanger tube 15 is connected to high temperature section 2, medium temperature by several pipe support 16a
On the inner wall of section 3 and low-temperature zone 4, the output end of heat exchanger tube 15 is connect by the first water tank 16 with steam generator 8, and heat exchanger tube
15 input terminal is connected with circulation pipe 18 by the second water tank 17, and the other end of circulation pipe 18 is connect with the water outlet of steam turbine 9.
Further, the second water tank 17 is internally provided with temperature sensor, and the signal output end of temperature sensor and control
The signal input part of device processed connects, and the signal output end of controller is electrically connected with the circulating pump 13 being connected on circulation pipe 18,
The temperature of cooling water passes through controller control loop when the temperature is excessively high in temperature sensor the second water tank 17 of detectable input
Pump 13 increases acting, accelerates the cycle of cooling water, to improve the heat exchange effect of heat exchange mechanisms 7.
Wherein, transmission case 19 includes babinet 20, and the power output shaft of steam turbine 9 sequentially passes through the first helical teeth in babinet 20
Wheel 21 and the second helical gear 22 and output axis connection with generator 12, the upside engagement of the first helical gear 21 are connected with the
Three helical gears 23, third helical gear 23 are connect by the second transmission mechanism 11 with airflow circulating mechanism 14, and airflow circulating can be driven
Mechanism 14 operates, and accelerates the cycle of the air-flow inside high temperature section 2, middle-temperature section 3 and low-temperature zone 4, the side of the second helical gear 22 is nibbled
Conjunction is connected with the 4th helical gear 24, and the 4th helical gear 24 is sequentially connected by the first transmission mechanism 10 with conveyer belt 6.
Further, the first transmission mechanism 10 includes first transmission shaft coaxially connected with the 4th helical gear 24（31）, the
One transmission shaft（31）It is through to the outside of babinet 20 and is connected with driving pulley 25, driving pulley 25 passes through belt and conveyer belt 6
Drive roll be sequentially connected.
Further, conveyer belt 6 is located on the downside of the part in high temperature section 2, middle-temperature section 3 and low-temperature zone 4 and is equipped with to thereon
The carrying roller 26 that carrier bar is lifted, both ends and high temperature section 2, middle-temperature section 3 and 4 side wall of low-temperature zone of carrying roller 26 rotate, and carrying roller 26 can
Ensure that conveyer belt 6 there are enough bearing capacitys, improves the efficiency that ceramic tile 5 conveys.
Specifically, the second transmission mechanism 11 includes the second driving shaft coaxially connected with third helical gear 23（32）, second
Transmission shaft（32）It is through to the outside of babinet 20 and is connected with drive sprocket（35）, drive sprocket（35）With airflow circulating mechanism 14
It is sequentially connected, the work of steam turbine 9 drives transmission case 19 to operate, and transmission case 19 drives airflow circulating machine by the second transmission mechanism 11
Structure 14 operates.
More specifically, airflow circulating mechanism 14 is more inside 4 roof of high temperature section 2, middle-temperature section 3 and low-temperature zone including being arranged
A centrifugal blower 27, the drive shaft of centrifugal blower 27（33）It is through to high temperature section 2, the upside of middle-temperature section 3 and low-temperature zone 4 and connection
There is driven sprocket（34）Connection, driven sprocket（34）Pass through chain 28 and drive sprocket（35）Connection, the air inlet of centrifugal blower 27
It is connected to inside end and high temperature section 2, middle-temperature section 3 and low-temperature zone 4, the outlet side of centrifugal blower 27 and high temperature section 2, middle-temperature section 3 and low
Gas channel 29 in 4 left and right sidewall of temperature section is connected to, and is equipped on 4 inner wall of high temperature section 2, middle-temperature section 3 and low-temperature zone logical with air-flow
The venthole 30 that road 29 is connected to.
The utility model by the way that the conveyer belt 6 for conveying ceramic tile 5 is arranged in high temperature section 2, middle-temperature section 3 and low-temperature zone 4,
And heat exchange mechanisms 7 are set in the upside of conveyer belt 6, take away high temperature section 2, medium temperature using the cooling water flowed in heat exchange mechanisms 7
Heat in section 3 and low-temperature zone 4, and then cooling down is carried out to the ceramic tile 5 in transmission process；
By connecting heat exchange mechanisms 7 with steam generator 8, and steam generator 8 is connect with steam turbine 9, it is available
High-temperature steam drives steam turbine 9 to do work, and generator 12 is driven to generate electricity；By being set in high temperature section 2, middle-temperature section 3 and low-temperature zone 4
Airflow circulating mechanism 14 is set, air-flow can will be driven to rise using centrifugal blower 27, pass through 7 postcooling of heat exchange mechanisms, it is after cooling
Air-flow passes through the gas channel 29 in 4 inner wall of high temperature section 2, middle-temperature section 3 and low-temperature zone, finally exports to the both sides of ceramic tile 5, can be right
The ceramic tile 5 of transmission process carries out circulating air cooling, and the heat of ceramic tile 5 can efficiently be converted by heat exchange mechanisms 7, can effectively avoid heat
Amount is lost in from the side wall of high temperature section 2, middle-temperature section 3 and low-temperature zone 4；It is available by the way that centrifugal blower 27 to be connect with transmission case 19
Steam turbine 9 drives centrifugal blower 27 to work, to avoid other setting actuating unit.
Although kiln 1, high temperature section 2, middle-temperature section 3, low-temperature zone 4, ceramic tile 5, conveyer belt 6, heat exchange is used more herein
Mechanism 7, steam generator 8, steam turbine 9, the first transmission mechanism 10, the second transmission mechanism 11, generator 12, circulating pump 13, gas
Flow circulation mechanism 14, heat exchanger tube 15, the first water tank 16, the second water tank 17, circulation pipe 18, transmission case 19, babinet 20, the first helical teeth
Take turns the 21, second helical gear 22, third helical gear 23, the 4th helical gear 24, driving pulley 25, carrying roller 26, centrifugal blower 27, chain
28, the terms such as gas channel 29 and venthole 30, but it does not preclude the possibility of using other terms.Only using these terms
It is to more easily describe and explain the essence of the utility model；Be construed as any one of the additional limitations all and be with
What the spirit of the present invention was disagreed.
It solves the interior cycle in the prior art that can not form cooling system by above-mentioned utility model, then leads
The inefficient of heat recovery is caused, while the gas Jing Guo heat recovery can still carry a large amount of waste heat, if be directly discharged into
The problem of interior causes indoor temperature excessively high, influences the working environment of worker.
Claims (7)
1. a kind of novel environment friendly ceramic tile baking furnace, including it is connected to kiln（1）On high temperature section（2）, middle-temperature section（3）And low-temperature zone
（4）, which is characterized in that the high temperature section（2）, middle-temperature section（3）And low-temperature zone（4）It is interior to be used to export ceramic tile through equipped with one
（5）Conveyer belt（6）, the high temperature section（2）, middle-temperature section（3）And low-temperature zone（4）Inside it is additionally provided with heat exchange mechanisms（7）, and heat exchanger
Structure（7）One end be through to kiln（1）Outside simultaneously connects steam generator（8）, the steam generator（8）Steam output end
With steam turbine（9）Connection, the steam turbine（9）Power output shaft pass through transmission case（19）It is connected separately with the first transmission mechanism
（10）, the second transmission mechanism（11）And generator（12）, first transmission mechanism（10）With conveyer belt（6）It is sequentially connected；Institute
State high temperature section（2）, middle-temperature section（3）And low-temperature zone（4）Inside is equipped with airflow circulating mechanism（14）, the airflow circulating mechanism
（14）With the second transmission mechanism（11）It is sequentially connected, the heat exchange mechanisms（7）Including being arranged in conveyer belt（6）The multiple rows of of upside changes
Heat pipe（15）, the heat exchanger tube（15）Pass through several pipe supports（16a）It is connected to high temperature section（2）, middle-temperature section（3）And low-temperature zone（4）
Inner wall on, the heat exchanger tube（15）Output end pass through the first water tank（16）With steam generator（8）Connection, and heat exchanger tube
（15）Input terminal pass through the second water tank（17）It is connected with circulation pipe（18）, the circulation pipe（18）The other end and steam turbine
（9）Water outlet connection.
2. novel environment friendly ceramic tile baking furnace according to claim 1, which is characterized in that second water tank（17）Inside
Equipped with temperature sensor, and the signal input part of the signal output end of temperature sensor and controller connects, and the letter of controller
Number output end and it is connected to circulation pipe（18）On circulating pump（13）Electrical connection.
3. novel environment friendly ceramic tile baking furnace according to claim 1, which is characterized in that the transmission case（19）Including babinet
（20）, the steam turbine（9）Power output shaft sequentially pass through babinet（20）The first interior helical gear（21）With the second helical gear
（22）And and generator（12）Output axis connection, first helical gear（21）Upside engagement be connected with third helical teeth
Wheel（23）, the third helical gear（23）Pass through the second transmission mechanism（11）With airflow circulating mechanism（14）Connection, described second
Helical gear（22）Side engagement be connected with the 4th helical gear（24）, the 4th helical gear（24）Pass through the first transmission mechanism
（10）With conveyer belt（6）It is sequentially connected.
4. novel environment friendly ceramic tile baking furnace according to claim 3, which is characterized in that first transmission mechanism（10）Packet
It includes and the 4th helical gear（24）The first coaxially connected transmission shaft（31）, first transmission shaft（31）It is through to babinet（20）'s
Outside is simultaneously connected with driving pulley（25）, the driving pulley（25）Pass through belt and conveyer belt（6）Drive roll be sequentially connected.
5. novel environment friendly ceramic tile baking furnace according to claim 4, which is characterized in that the conveyer belt（6）Positioned at high temperature
Section（2）, middle-temperature section（3）And low-temperature zone（4）The carrying roller lifted to its upper link plate is equipped on the downside of interior part（26）, the support
Roller（26）Both ends and high temperature section（2）, middle-temperature section（3）And low-temperature zone（4）Side wall rotates.
6. novel environment friendly ceramic tile baking furnace according to claim 5, which is characterized in that second transmission mechanism（11）Packet
It includes and third helical gear（23）Coaxially connected second driving shaft（32）, the second driving shaft（32）It is through to babinet（20）'s
Outside is simultaneously connected with drive sprocket（35）, the drive sprocket（35）With airflow circulating mechanism（14）It is sequentially connected.
7. novel environment friendly ceramic tile baking furnace according to claim 6, which is characterized in that the airflow circulating mechanism（14）Packet
It includes and is arranged in high temperature section（2）, middle-temperature section（3）And low-temperature zone（4）Multiple centrifugal blowers inside roof（27）, the centrifugal blower
（27）Drive shaft（33）It is through to high temperature section（2）, middle-temperature section（3）And low-temperature zone（4）Upside and be connected with driven sprocket
（34）Connection, the driven sprocket（34）Pass through chain（28）With drive sprocket（35）Connection, the centrifugal blower（27）Into
Gas end and high temperature section（2）, middle-temperature section（3）And low-temperature zone（4）Inside connection, the centrifugal blower（27）Outlet side and high temperature section
（2）, middle-temperature section（3）And low-temperature zone（4）Gas channel in left and right sidewall（29）Connection, the high temperature section（2）, middle-temperature section（3）With
Low-temperature zone（4）It is equipped on inner wall and gas channel（29）The venthole of connection（30）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721596752.4U CN207662189U (en) | 2017-11-26 | 2017-11-26 | A kind of novel environment friendly ceramic tile baking furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721596752.4U CN207662189U (en) | 2017-11-26 | 2017-11-26 | A kind of novel environment friendly ceramic tile baking furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207662189U true CN207662189U (en) | 2018-07-27 |
Family
ID=62947317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721596752.4U Expired - Fee Related CN207662189U (en) | 2017-11-26 | 2017-11-26 | A kind of novel environment friendly ceramic tile baking furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207662189U (en) |
-
2017
- 2017-11-26 CN CN201721596752.4U patent/CN207662189U/en not_active Expired - Fee Related
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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: 20180727 Termination date: 20181126 |