CN209679814U - A kind of emission-control equipment for rubber refining - Google Patents

A kind of emission-control equipment for rubber refining Download PDF

Info

Publication number
CN209679814U
CN209679814U CN201821928740.1U CN201821928740U CN209679814U CN 209679814 U CN209679814 U CN 209679814U CN 201821928740 U CN201821928740 U CN 201821928740U CN 209679814 U CN209679814 U CN 209679814U
Authority
CN
China
Prior art keywords
spray
spray column
tube
connecting tube
emission
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
Application number
CN201821928740.1U
Other languages
Chinese (zh)
Inventor
吴鑫源
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qinhuangdao Dejia Technology Co Ltd
Original Assignee
Qinhuangdao Dejia Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qinhuangdao Dejia Technology Co Ltd filed Critical Qinhuangdao Dejia Technology Co Ltd
Priority to CN201821928740.1U priority Critical patent/CN209679814U/en
Application granted granted Critical
Publication of CN209679814U publication Critical patent/CN209679814U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Treating Waste Gases (AREA)

Abstract

A kind of emission-control equipment for rubber refining, including collection device, plasma discharge device, spray column, exhaust fan, circulatory pool and exhaust tower, the collection device right end is connected with rectifying tube, rectifying tube right end is equipped with one end of plasma discharge device, the other end of plasma discharge device is equipped with the first connecting tube, the tail end of first connecting tube is fixedly connected on spray tower bottom, spray column right end is equipped with the circulatory pool connected by the second connecting tube, exhaust tower is connected by the upper end of third connecting tube and spray column, the detector being fixedly connected on the outside of exhaust tower middle-end inside insertion exhaust tower, detector upper end is equipped with alarm device, the device emission-control equipment is reasonable in design, to the treatment effeciency of the foul gas generated in rubber refining process up to 85% or more, and system resistance is small, low energy consumption, exhaust-gas treatment rate Height reduces the pollution to environment.

Description

A kind of emission-control equipment for rubber refining
Technical field
The utility model relates to rubber waste gas treatment equipment field more particularly to a kind of exhaust-gas treatments for rubber refining Device.
Background technique
A large amount of foul gas are discharged in the refining glue and vulcanization process of rubber plant, pollute the environment of surrounding, it is often more important that row The stench put gives people very offending feeling, according to existing national emission standard and air quality standard, tire enterprise etc. The Air Pollutant Emission limit value of rubber plant: particulate matter 12mg/m3,10 mg/m3 of ammonia, toluene and dimethylbenzene add up to 15mg/ M3, non-methane total hydrocarbons 10mg/m3, it is therefore necessary to which carrying out processing to the foul gas of rubber industry could discharge.Generally directed to rubber Mainly there is the processing method of generated foul waste gas in glue industry: Adsorption Concentration Production by Catalytic Combustion Process, bio-trickling bed process and work Property carbon adsorption.
The advantages of combustion method is removal efficiency height, and burning removal rate is greater than 90%, the disadvantage is that plant investment is larger, and Catalysis ignition temperature needed for foul smell decomposes is higher, therefore requires strictly technical matters and its device, and operating cost is very high. The removal efficiency of bio-filter technology is up to 90% or more, since biological decomposition speed is slower, it is desirable that gas is into tower upflow velocity Very small, in the larger situation of tolerance, the volume of biological tower is very big, and scale of investment and land occupation are quite big, and debugging is very troublesome, Operating cost is lower.Active carbon adsorption operating cost is larger, and the active carbon later period also needs to reprocess, the taste removal when exhausted air quantity is very big It is cumbersome.
Number of patent application provides a kind of exhaust treatment system for rubber plant for CN201220419783.3, described Exhaust treatment system includes gas collector, gas treatment equipment, the gas treatment equipment include spray oxidative absorption tower, Water charging system, dispensing system, the gas collector are connected with the spray oxidative absorption tower, and the water charging system is used for To the spray oxidative absorption tower moisturizing, the dispensing system is described for configuring medicament used in spray oxidative absorption tower Water charging system is connect with the spray oxidative absorption tower, and the dispensing system is connect with the spray oxidative absorption tower;It is described from Autocontrol system is used to control the operation of entire exhaust treatment system.Exhaust gas is passed directly into spray oxidizing tower by the utility model In, the time for contacting exhaust gas with oxidant is short, so that the purifying rate of exhaust gas reduces, and relies solely on oxidation spray column to purify Exhaust gas, the multiple harmful substances in exhaust gas are difficult to be completely broken down, and do not have detection device, detect whether purified exhaust gas reaches Discharge standard is arrived.
Utility model content
The utility model will solve the above-mentioned problems of the prior art, provide a kind of exhaust-gas treatment for rubber refining Device, the device are equipped with a variety of emission-control equipment waste gas purification rates height, and few to the pollution of environment, exhaust-gas treatment speed is quick, And occupied area is small, and baffle is equipped in spray column, can extend exhaust gas in the time of spray column bottom end, to improve purification Rate.
The utility model solves the technical solution of its technical problem use: this exhaust-gas treatment for rubber refining fills It sets, including collection device, plasma discharge device, spray column, exhaust fan, circulatory pool and exhaust tower, the collection device includes receiving Collector is fixedly connected with fixed frame in collecting pipe, and fixed frame left end is rotatably connected to suction fan, and the collecting pipe right end is connected with Rectifying tube, rectifying tube right end are equipped with one end of plasma discharge device, and the other end of the plasma discharge device is equipped with the first connection Pipe, the tail end of the first connecting tube are fixedly connected on spray tower bottom, and the spray tower bottom left end is equipped with close with spray inner wall of tower The first baffle of connection is sealed, is equipped with the second baffle for being sealedly connected on spray tower bottom left end on the upside of first baffle right end, second Baffle upper end is equipped with the first placement plate for being fixedly connected on spray inner wall of tower, and the first placement plate upper end is equipped with the first filled layer, the One filled layer upper end is equipped with the first spray tube, and the first spray tube lower end is equipped with the first atomizer being connected through a screw thread, described First spray tube upper end is equipped with the first isocon, and the right end of the first isocon passes through spray column and is connected in the second connecting tube End, second connecting tube are located on the outside of spray column right end, and first isocon upper end is equipped with and is fixedly connected in spray column Second placement plate of wall increases retention time of the exhaust gas for entering spray tower bottom in leacheate, so that having in exhaust gas Evil substance is more adsorbed or is dissolved in leacheate, and the second placement plate upper end is equipped with the second filled layer, the second filled layer upper end Equipped with the second spray tube, the second spray tube lower end is equipped with the second atomizer for being connected through a screw thread, on second spray tube End is equipped with the second isocon, and the second isocon right end passes through the upper end that spray column is connected to the second connecting tube, and described second shunts Pipe upper end is equipped with the third placement plate for being fixedly connected on spray inner wall of tower, and third placement plate upper end is equipped with demisting plate, the spray Tower upper end is equipped with gas outlet, and gas outlet upper end is fixedly connected with third connecting tube, and second connecting tube lower end is fixedly connected with The water outlet of filter, the water inlet end of the filter are connected with the water outlet of water pump, and the water inlet end of the water pump is equipped with the 4th Connecting tube, the water pump lower end are equipped with circulatory pool, and the tail end of the 4th connecting tube is located at the inside of circulatory pool, the circulatory pool Feed inlet is equipped on the upside of right end, the tail end of the third connecting tube is equipped with the pumping end of exhaust fan, and the outlet side of exhaust fan is equipped with The exhaust tower connected by pipeline, is combined using a variety of waste gas treatment equipments, so that exhaust gas is toxic after repeatedly handling to be had Evil gas is significantly reduced, and the leacheate in spray column and circulatory pool can be recycled.
In order to further perfect, the gas detection being inserted into inside exhaust tower is fixedly connected on the outside of the exhaust tower middle-end Device, detector upper end are equipped with alarm device, detect and are discharged whether harmful substance in gas reaches discharge standard in exhaust tower, when When more than discharge standard, alarm device is sounded an alarm, and staff is reminded to detect the device.
It is further perfect, it is equipped with expanding part on the outside of the collecting pipe left end, sucks exhaust gas preferably in collecting pipe.
Further perfect, plasma discharge device front end is equipped with control cabinet, and control cabinet right end is equipped with several controls and presses Button, control button left end are equipped with the heat release hole for being opened in control cabinet front end, facilitate the operation of operator.
Further perfect, first spray tube and the second spray tube are " ten " character form structure, so that vegetation water is sprayed More evenly.
It is further perfect, the circulating line connecting with circulatory pool inside is equipped on the right side of the spray column lower end.
It is further perfect, it is equipped with drainpipe on the right side of the circulatory pool lower end, is equipped with valve on the outside of drainpipe right end, facilitates plant The replacement of thing liquid.
It is further perfect, the maintenance being opened on spray column is equipped on the left of first spray tube and the second spray tube lower end Mouthful, it is rotatably connected to closing door on the outside of the access hole left end and on the outside of feed inlet, convenient for the maintenance and more of device in spray column It changes.
Further perfect, the spray tower bottom and circulatory pool are provided with vegetation water.
The utility model has the advantages that: the structure design of the utility model is reasonable, puts equipped with the first placement plate and second Plate is set, increases residence time of the exhaust gas in the leacheate of spray tower bottom, adsorbs the harmful substance in exhaust gas preferably Or be dissolved in leacheate, the circulatory pool being equipped with is also possible to leacheate and is recycled, and the device exhaust-gas treatment Rate is high, and few to the pollution of environment, operating cost is low, and exhaust-gas treatment speed is quick, convenient, and occupied area is small.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the structural schematic diagram of spray column and circulatory pool;
Fig. 3 is the enlarged drawing of part A in Fig. 1;
Fig. 4 is the enlarged drawing of part B in Fig. 2;
Fig. 5 is the enlarged drawing of C portion in Fig. 2;
Fig. 6 is the top view of the first spray tube.
Description of symbols: 1, plasma discharge device, 2, spray column, 3, exhaust fan, 4, circulatory pool, 5, exhaust tower, 6, receipts Collector, 7, fixed frame, 8, suction fan, 9, rectifying tube, the 10, first connecting tube, 11, first baffle, 12, second baffle, 13, first Placement plate, the 14, first filled layer, the 15, first spray tube, the 16, first atomizer, the 17, first isocon, the 18, second connection Pipe, the 19, second placement plate, the 20, second filled layer, the 21, second spray tube, the 22, second atomizer, the 23, second isocon, 24, third placement plate, 25, demisting plate, 26, gas outlet, 27, third connecting tube, 28, filter, 29, water pump, the 30, the 4th connection Pipe, 31, feed inlet, 32, detector, 33, alarm device, 34, expanding part, 35, control cabinet, 36, control button, 37, heat dissipation Hole, 38, circulating line, 39, drainpipe, 40, valve, 41, access hole, 42, closing door.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
Referring to attached drawing 1-6: a kind of emission-control equipment for rubber refining in the present embodiment, including collection device, etc. Ionic discharge device 1, spray column 2, exhaust fan 3, circulatory pool 4 and exhaust tower 5, it is characterized in that: the collection device includes collecting pipe 6, fixed frame 7 is fixedly connected in collecting pipe 6,7 left end of fixed frame is rotatably connected to suction fan 8,6 right end of the collecting pipe connection There is a rectifying tube 9,9 right end of rectifying tube is equipped with one end of plasma discharge device 1, and the other end of the plasma discharge device 1 is equipped with the One connecting tube 10, the tail end of the first connecting tube 10 are fixedly connected on 2 bottom of spray column, the 2 bottom left end of spray column be equipped with The first baffle 11 that 2 inner wall of spray column is tightly connected, 11 right end of first baffle upside, which is equipped with, is sealedly connected on 2 bottom of a spray column left side The second baffle 12 at end, 12 upper end of second baffle are equipped with the first placement plate 13 for being fixedly connected on 2 inner wall of spray column, and first places 13 upper end of plate is equipped with the first filled layer 14, and 14 upper end of the first filled layer is equipped with the first spray tube 15, and 15 lower end of the first spray tube is set There is the first atomizer 16 being connected through a screw thread, 15 upper end of the first spray tube is equipped with the first isocon 17, and first shunts The right end of pipe 17 passes through the middle-end that spray column 2 is connected to the second connecting tube 18, and second connecting tube 18 is located at 2 right end of spray column Outside, 17 upper end of the first isocon are equipped with the second placement plate 19 for being fixedly connected on 2 inner wall of spray column, the second placement plate 19 Upper end is equipped with the second filled layer 20, and 20 upper end of the second filled layer is equipped with the second spray tube 21, and 21 lower end of the second spray tube is equipped with logical The second atomizer 22 being threadedly coupled is crossed, 21 upper end of the second spray tube is equipped with the second isocon 23, the second isocon 23 Right end passes through the upper end that spray column 2 is connected to the second connecting tube 18, and 23 upper end of the second isocon is equipped with and is fixedly connected on spray The third placement plate 24 of 2 inner wall of tower is drenched, 24 upper end of third placement plate is equipped with demisting plate 25, and 2 upper end of spray column is equipped with outlet Mouth 26,26 upper end of gas outlet is fixedly connected with third connecting tube 27;
Second connecting tube, 18 lower end is fixedly connected with the water outlet of filter 28, and the water inlet end of the filter 28 connects It is connected to the water outlet of water pump 29, the water inlet end of the water pump 29 is equipped with the 4th connecting tube 30, and 29 lower end of water pump is equipped with circulation Pond 4, the tail end of the 4th connecting tube 30 are located at the inside of circulatory pool 4, are equipped with feed inlet 31 on the upside of 4 right end of circulatory pool, The tail end of the third connecting tube 27 is equipped with the pumping end of exhaust fan 3, and the outlet side of exhaust fan 3 is equipped with the row connected by pipeline Gas tower 5,5 middle-end of the exhaust tower outside are fixedly connected with the detector 32 inside insertion exhaust tower 5, detector 32 Upper end is equipped with alarm device 33, and expanding part 34 is equipped on the outside of 6 left end of collecting pipe, and 1 front end of plasma discharge device is equipped with control Case 35 processed, 35 right end of control cabinet are equipped with several control buttons 36, and 36 left end of control button is equipped with and is opened in 35 front end of control cabinet Heat release hole 37, first spray tube 15 and the second spray tube 21 are " ten " character form structure, are set on the right side of 2 lower end of spray column The circulating line 38 for having and connecting inside circulatory pool 4,4 lower end of the circulatory pool right side are equipped with drainpipe 39,39 right end of drainpipe Outside is equipped with valve 40, is equipped with the maintenance being opened on spray column 2 on the left of first spray tube 15 and 21 lower end of the second spray tube Mouthfuls 41, it is rotatably connected to closing door 42 on the outside of 41 left end of access hole and on the outside of feed inlet 31,2 bottom of spray column and follows Cisterna ambiens 4 is provided with vegetation water.
In use, collection device is placed in rubber refining room, exhaust gas enters rectifying tube 9 by collecting pipe 6, then passes through Rectifying tube 9 is passed through plasma generator 1, is passed into 2 bottom of spray column after purifying by plasma generator 1, exhaust gas first rises Assemble on the downside of 11 left end of first baffle, increases time of the exhaust gas in vegetation water, when air accumulation is to certain degree, Exhaust gas rising gathers on the downside of second baffle 12 right end, and after similarly exhaust gas gathers certain degree, exhaust gas is from 2 bottom of spray column Rise, passes sequentially through the first filled layer 14, the first spray tube 15, the second filled layer 20 and the second spray tube 21, gas is by filling out Fog is removed by demisting plate 25 again after filling the vegetation water absorption and dissolution of layer and atomization, finally by third connecting tube 27 useless Gas is passed through in exhaust tower 5 and is discharged in atmosphere, and whether the gas for the gas inspection detection discharge of detector 32 that exhaust tower 5 is equipped with accords with Discharge standard is closed, once harmful substance exceeds discharge standard in gas, alarm device 33 is sounded an alarm, and staff is reminded to need to examine Look into device or replacement vegetation water or some assistant medicaments of addition.
Although the utility model is shown and described by reference to preferred embodiment, this profession is common Technical staff is it is to be appreciated that within the scope of the claims, can make various variation in form and details.

Claims (9)

1. a kind of emission-control equipment for rubber refining, including collection device, plasma discharge device (1), spray column (2), Exhaust fan (3), circulatory pool (4) and exhaust tower (5), it is characterized in that: the collection device includes collecting pipe (6), collecting pipe (6) is interior It is fixedly connected with fixed frame (7), fixed frame (7) left end is rotatably connected to suction fan (8), and collecting pipe (6) right end is connected with Rectifying tube (9), rectifying tube (9) right end are equipped with the one end of plasma discharge device (1), the other end of the plasma discharge device (1) Equipped with the first connecting tube (10), the tail end of the first connecting tube (10) is fixedly connected on spray column (2) bottom, the spray column (2) Bottom left end is equipped with the first baffle (11) being tightly connected with spray column (2) inner wall, is equipped on the upside of first baffle (11) right end close Envelope is connected to the second baffle (12) of spray column (2) bottom left end, and second baffle (12) upper end is equipped with and is fixedly connected on spray column (2) the first placement plate (13) of inner wall, the first placement plate (13) upper end are equipped with the first filled layer (14), on the first filled layer (14) End is equipped with the first spray tube (15), and the first spray tube (15) lower end is equipped with the first atomizer (16) being connected through a screw thread, institute The first spray tube (15) upper end is stated equipped with the first isocon (17), the right end of the first isocon (17) is connected across spray column (2) Middle-end in the second connecting tube (18), second connecting tube (18) are located on the outside of spray column (2) right end, first isocon (17) upper end, which is equipped with, is fixedly connected on second placement plate (19) of spray column (2) inner wall, and the second placement plate (19) upper end is equipped with the Two filled layers (20), the second filled layer (20) upper end are equipped with the second spray tube (21), and the second spray tube (21) lower end, which is equipped with, to be passed through The second atomizer (22) being threadedly coupled, the second spray tube (21) upper end are equipped with the second isocon (23), and second shunts Pipe (23) right end passes through the upper end that spray column (2) are connected to the second connecting tube (18), and the second isocon (23) upper end is equipped with It is fixedly connected on the third placement plate (24) of spray column (2) inner wall, third placement plate (24) upper end is equipped with demisting plate (25), described Spray column (2) upper end is equipped with gas outlet (26), and gas outlet (26) upper end is fixedly connected with third connecting tube (27);
Second connecting tube (18) lower end is fixedly connected with the water outlet of filter (28), the water inlet end of the filter (28) It is connected with the water outlet of water pump (29), the water inlet end of the water pump (29) is equipped with the 4th connecting tube (30), under the water pump (29) End is equipped with circulatory pool (4), and the tail end of the 4th connecting tube (30) is located at the inside of circulatory pool (4), circulatory pool (4) right end Upside is equipped with feed inlet (31), and the tail end of the third connecting tube (27) is equipped with the pumping end of exhaust fan (3), exhaust fan (3) Outlet side is equipped with the exhaust tower (5) connected by pipeline.
2. a kind of emission-control equipment for rubber refining according to claim 1, it is characterized in that: the exhaust tower (5) the internal detector (32) of insertion exhaust tower (5) is fixedly connected on the outside of middle-end, detector (32) upper end is equipped with Alarm device (33).
3. a kind of emission-control equipment for rubber refining according to claim 1, it is characterized in that: the collecting pipe (6) expanding part (34) are equipped on the outside of left end.
4. a kind of emission-control equipment for rubber refining according to claim 1, it is characterized in that: the plasma is put Electric appliance (1) front end is equipped with control cabinet (35), and control cabinet (35) right end is equipped with several control buttons (36), and control button (36) is left End is equipped with the heat release hole (37) for being opened in control cabinet (35) front end.
5. a kind of emission-control equipment for rubber refining according to claim 1, it is characterized in that: first spray It manages (15) and the second spray tube (21) is " ten " character form structure.
6. a kind of emission-control equipment for rubber refining according to claim 1, it is characterized in that: the spray column (2) circulating line (38) for being equipped on the right side of lower end and being connect inside circulatory pool (4).
7. a kind of emission-control equipment for rubber refining according to claim 1, it is characterized in that: the circulatory pool (4) drainpipe (39) are equipped on the right side of lower end, are equipped with valve (40) on the outside of drainpipe (39) right end.
8. a kind of emission-control equipment for rubber refining according to claim 1, it is characterized in that: first spray Pipe is equipped with the access hole (41) being opened on spray column (2), the access hole (41) on the left of (15) and the second spray tube (21) lower end Closing door (42) are rotatably connected on the outside of left end and on the outside of feed inlet (31).
9. a kind of emission-control equipment for rubber refining according to claim 1, it is characterized in that: the spray column (2) bottom and circulatory pool (4) are provided with vegetation water.
CN201821928740.1U 2018-11-22 2018-11-22 A kind of emission-control equipment for rubber refining Expired - Fee Related CN209679814U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821928740.1U CN209679814U (en) 2018-11-22 2018-11-22 A kind of emission-control equipment for rubber refining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821928740.1U CN209679814U (en) 2018-11-22 2018-11-22 A kind of emission-control equipment for rubber refining

Publications (1)

Publication Number Publication Date
CN209679814U true CN209679814U (en) 2019-11-26

Family

ID=68595156

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821928740.1U Expired - Fee Related CN209679814U (en) 2018-11-22 2018-11-22 A kind of emission-control equipment for rubber refining

Country Status (1)

Country Link
CN (1) CN209679814U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111729496A (en) * 2020-06-24 2020-10-02 苍龙集团有限公司 Chlorine-oxygen ion purification system for waste gas treatment in biological medicine industry

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111729496A (en) * 2020-06-24 2020-10-02 苍龙集团有限公司 Chlorine-oxygen ion purification system for waste gas treatment in biological medicine industry

Similar Documents

Publication Publication Date Title
CN206103680U (en) High -efficient photodissociation oxidative system of stench waste gas
CN205586704U (en) Exhaust gas circulation processing apparatus
CN206746314U (en) A kind of foul gas processing unit
CN107115782A (en) A kind of pharmaceutical factory fume treatment auxiliary
CN108404573A (en) A kind of equipment for treating industrial waste gas
CN104043321A (en) System for purifying exhaust gas generated during baking of enamelled wires
CN203829904U (en) Modular grouped organic waste gas treatment device
CN108580044A (en) A kind of high-efficiency environment friendly plant gas dust removal and filtration equipment
CN206793295U (en) A kind of industrial mix waste gas processing equipment
CN206996279U (en) A kind of hybrid induction stream spray odor removal
CN204563901U (en) Composite process treatment device for industrial waste gas
CN108854378A (en) A kind of multiple dust-extraction unit of Environmental Safety flue gas
CN204034530U (en) Enameled wire baking waste gas cleaning system
CN210752104U (en) VOC exhaust-gas treatment purifies stove
CN112717599A (en) Flue gas peculiar smell removing device for hazardous waste incineration
CN216591744U (en) VOCs exhaust treatment system suitable for heat accumulating type oxidation furnace
CN215654633U (en) Complex composition laboratory exhaust purification processing apparatus
CN211069597U (en) An energy-saving organic waste gas treatment device
CN209221826U (en) A kind of sewage plant odor treating device
CN211487140U (en) Breed exhaust-gas treatment equipment
CN210544303U (en) Medicine exhaust-gas treatment system
CN209241859U (en) A kind of spent reagent disk collecting box
CN207546185U (en) A kind of high efficiency composition deodorization device
CN205672753U (en) A kind of containing acid mist and the cleaning treatment system of organic pollution waste gas
CN221310123U (en) A filtration equipment for laboratory waste gas

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191126

Termination date: 20201122

CF01 Termination of patent right due to non-payment of annual fee