CN109099726A - Combustion boiler capable of absorbing and storing heat of tail gas - Google Patents
Combustion boiler capable of absorbing and storing heat of tail gas Download PDFInfo
- Publication number
- CN109099726A CN109099726A CN201810993404.3A CN201810993404A CN109099726A CN 109099726 A CN109099726 A CN 109099726A CN 201810993404 A CN201810993404 A CN 201810993404A CN 109099726 A CN109099726 A CN 109099726A
- Authority
- CN
- China
- Prior art keywords
- tail gas
- boiler
- box
- pipe
- cooling cylinder
- 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.)
- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000003860 storage Methods 0.000 claims abstract description 32
- 239000000779 smoke Substances 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims abstract description 16
- 238000001179 sorption measurement Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims description 37
- 238000010438 heat treatment Methods 0.000 claims description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 19
- 230000002035 prolonged effect Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 abstract 3
- 230000005494 condensation Effects 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 29
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000000428 dust Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 230000000505 pernicious effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/50—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers for draining or expelling water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/16—Arrangements for water drainage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a combustion boiler for absorbing and storing heat of tail gas, which comprises a base, wherein a boiler main body, a treatment box, a condensation box and a storage box are fixedly installed at the top of the base, a smoke inlet pipe is fixedly communicated with the bottom end of the boiler main body, the other end of the smoke inlet pipe penetrates through the treatment box and extends to the inner side of the treatment box, a filter screen and an adsorption layer are fixedly installed between the inner walls of the two sides of the treatment box, the adsorption layer is positioned above the filter screen, a connecting pipe is fixedly communicated with one side of the treatment box, which is far away from the smoke inlet pipe, the other end of the connecting pipe penetrates through the condensation box and extends to the inner side of the condensation box, and a water inlet pipe is. When the tail gas enters the interior of the condensing box, the water flow in the spray head can cool the tail gas to absorb the heat in the tail gas, so that the water flow is heated and pumped into the interior of the storage box for storage through the water pump, and the practicability of the device is improved.
Description
Technical field
The present invention relates to burning boiler technical field more particularly to a kind of burning boilers for absorbing storage tail gas heat quantity.
Background technique
Boiler is a kind of energy conversion, and the energy inputted to boiler has chemical energy, electric energy in fuel, boiler output
Steam, high-temperature water or organic heat carrier with certain thermal energy.The original meaning of pot refers to that the water container heated on fire, furnace refer to burning
The place of fuel, boiler include pot and furnace two large divisions.The hot water or steam generated in boiler can directly be industrial production and people
The people's livelihood is living to provide required thermal energy, mechanical energy can also be converted to by Steam Power Equipment, or again turn mechanical energy by generator
It is changed to electric energy.The boiler for providing hot water is known as hot-water boiler, is mainly used for living, also there is a small amount of application in industrial production.It generates
The boiler of steam is known as steam boiler, is often simply called boiler, is chiefly used in thermal power station, ship, locomotive and industrial and mining enterprises.
Burning boiler used at present is that will be directly discharged in air after the rough processing of tail gas at work, by
A large amount of heat and some harmful substances can be carried in tail gas, certain pollution is caused to air, therefore, need a kind of absorption
The burning boiler of tail gas heat quantity is stored to solve the above problems.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of absorption proposed stores exhaust gas heat
The burning boiler of amount.
To achieve the goals above, present invention employs following technical solutions:
It is a kind of to absorb the burning boiler for storing tail gas heat quantity, including pedestal, boiler is fixedly installed at the top of the pedestal
Main body, treatment box, cooling cylinder and storage bin, the bottom end of the boiler body is fixed to be communicated with smoke-intake pipe, the smoke-intake pipe it is another
One end is through treatment box and extends to the inside for the treatment of box, be fixedly installed between the inner wall of the treatment box two sides filter screen and
Adsorption layer, the adsorption layer are located at the top of filter screen, and the treatment box is communicated with connecting tube far from the side fixation of smoke-intake pipe,
The other end of the connecting tube is through cooling cylinder and extends to the inside of cooling cylinder, the top fixing sleeve of the cooling cylinder be connected into
Water pipe, one end that the water inlet pipe is located on the inside of cooling cylinder are fixedly installed with spray head, and the spray head is located at the top of connecting tube, institute
It states cooling cylinder and is communicated with smoke exhaust pipe far from the side fixation of connecting tube, the smoke exhaust pipe is located at the top of spray head, the cooling cylinder
Side far from connecting tube is fixed to be communicated with smoke exhaust pipe, and the smoke exhaust pipe is located at the top of spray head, and the cooling cylinder is far from connection
The side of pipe is fixed to be communicated with water-supply-pipe, and the other end of the water-supply-pipe runs through storage bin and extends to the inside of storage bin, institute
It states top of the pedestal between cooling cylinder and storage bin and is fixedly installed with water pump, the fixed company in the inside of the water pump and water-supply-pipe
It is logical.
Preferably, the inside of the boiler body is fixedly installed with heating duct, the adjacent side of the heating duct it
Between fixation be communicated with heating branch pipe.
Preferably, the inside of the boiler body offers inlet channel, and the inlet channel is located at heating duct and adds
Between hot leg pipe.
Preferably, water tank is fixedly installed between the inner wall of the boiler body two sides, the water tank is located at heating
The lower section of conduit.
Preferably, the bottom of the water tank is fixed is communicated with drainpipe, and boiler body is run through in the bottom end of the drainpipe
And extend to the outside of boiler body.
Preferably, collecting box is fixedly installed between the inner wall of the treatment box two sides, the collecting box is located at smoke-intake pipe
Lower section.
Preferably, the bottom of the collecting box is fixed is communicated with surge drum, the bottom end of the surge drum through treatment box and
Pedestal and the outside for extending to pedestal.
The invention has the benefit that
1. the absorption stores the burning boiler of tail gas heat quantity, by being provided with storage bin, when tail gas enters inside cooling cylinder
When, the water flow in spray head can carry out cooling processing to tail gas and absorb heat in tail gas, make water flow heating heating, then pass through water pump
The internal reservoir for pumping to storage bin improves the practicability of the device.
2. the absorption stores the burning boiler of tail gas heat quantity, by being provided with filter screen and adsorption layer, when tail gas is passed into
When the inside for the treatment of box, particulate matter and dust are disposed by filter screen, some pernicious gases are fallen by adsorption layer absorption, then arrange
It is put into cooling cylinder, improves the feature of environmental protection of the device.
3. the absorption stores the burning boiler of tail gas heat quantity, by being provided with water tank, generated inside boiler body cold
Condensate can fall on the inside of water tank, then the inside of boiler body is discharged by drainpipe, avoid inside boiler body and have
The phenomenon that ponding.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of burning boiler for absorbing storage tail gas heat quantity proposed by the present invention；
Fig. 2 is a kind of vent gas treatment structural schematic diagram of burning boiler for absorbing storage tail gas heat quantity proposed by the present invention.
In figure: 1 pedestal, 2 drainpipes, 3 water tanks, 4 boiler bodies, 5 heating ducts, 6 heating branch pipes, 7 inlet channels, 8
Smoke-intake pipe, 9 treatment boxes, 10 connecting tubes, 11 cooling cylinders, 12 storage bins, 13 filter screens, 14 adsorption layers, 15 water inlet pipes, 16 smoke evacuations
Pipe, 17 water-supply-pipes, 18 water pumps, 19 spray heads, 20 collecting boxs, 21 surge drums.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-2, a kind of burning boiler absorbing storage tail gas heat quantity, including pedestal 1, the fixed peace in the top of pedestal 1
Equipped with boiler body 4, treatment box 9, cooling cylinder 11 and storage bin 12, the bottom end fixation of boiler body 1 is communicated with smoke-intake pipe 8, into
The other end of smoke pipe 8 runs through treatment box 9 and extends to the inside for the treatment of box 9, is fixedly installed between the inner wall of 9 two sides for the treatment of box
Filter screen 13 and adsorption layer 14, adsorption layer 14 are located at the top of filter screen 13, when tail gas is passed into the inside for the treatment of box 9, warp
It crosses filter screen 13 and disposes particulate matter and dust, some pernicious gases are fallen by the absorption of adsorption layer 14, then be discharged into cooling cylinder 11
In, the feature of environmental protection of the device is improved, treatment box 9 is communicated with connecting tube 10 far from the side fixation of smoke-intake pipe 8, connecting tube 10
The other end runs through cooling cylinder 11 and extends to the inside of cooling cylinder 11, and the top fixing sleeve of cooling cylinder 11 is connected to water inlet pipe 15, into
One end that water pipe 15 is located at 11 inside of cooling cylinder is fixedly installed with spray head 19, and spray head 19 is located at the top of connecting tube 10, cooling cylinder
The 11 side fixations far from connecting tube 10 are communicated with smoke exhaust pipe 16, and smoke exhaust pipe 16 is located at the top of spray head 19, and cooling cylinder 11 is separate
The side fixation of connecting tube 10 is communicated with smoke exhaust pipe 16, and smoke exhaust pipe 16 is located at the top of spray head 19, and cooling cylinder 11 is far from connecting tube
10 side is fixed to be communicated with water-supply-pipe 17, and the other end of water-supply-pipe 17 through storage bin 12 and extends to the interior of storage bin 12
Side, top of the pedestal 1 between cooling cylinder 11 and storage bin 12 are fixedly installed with water pump 18, and water pump 18 is interior with water-supply-pipe 17
The fixed connection in portion, when tail gas enters 11 inside of cooling cylinder, the water flow in spray head 19 can carry out cooling processing to tail gas and absorb tail
Heat in gas makes water flow heating heating, then the internal reservoir of storage bin 12 is pumped to by water pump 18, improves the device
Practicability.
In the present invention, the inside of boiler body 4 is fixedly installed with heating duct 5, consolidates between the adjacent side of heating duct 5
Surely it is communicated with heating branch pipe 6, the inside of boiler body 4 offers inlet channel 7, and inlet channel 7 is located at heating duct 5 and heating
Between branch pipe 6, water tank 3 is fixedly installed between the inner wall of 4 two sides of boiler body, water tank 3 is located under heating duct 5
Side, the bottom of water tank 5 is fixed to be communicated with drainpipe 2, and the bottom end of drainpipe 2 through boiler body 4 and extends to boiler body 4
Outside, the condensed water generated inside boiler body 4 can fall on the inside of water tank 5, then boiler body is discharged by drainpipe 2
4 inside avoids and has the phenomenon that ponding inside boiler body, is fixedly installed with collection between the inner wall of 9 two sides for the treatment of box
Case 20, collecting box 20 are located at the lower section of smoke-intake pipe 8, and the bottom fixation of collecting box 20 is communicated with surge drum 21, the bottom of surge drum 21
End is through treatment box 9 and pedestal 1 and the outside for extending to pedestal 1.
Working principle: in use, being passed through combustion gas to the inside of boiler body 4 by inlet channel 7, make 4 work of boiler body
Make, when the tail gas generated when boiler work enters the inside for the treatment of box 9 by smoke-intake pipe 8, is disposed by filter screen 13
Particulate matter and dust fall some pernicious gases by the absorption of adsorption layer 14, then are discharged into cooling cylinder 11, the water flow meeting in head 19
Heat in cooling processing absorption tail gas is carried out to tail gas, makes water flow heating heating, then storage bin 12 is pumped to by water pump 18
Internal reservoir, tail gas can be drained into air by smoke exhaust pipe 16, when boiler is stopped using it is cooling after, inside boiler body 4
The condensed water of generation can fall on the inside of water tank 5, then the inside of boiler body 4 is discharged by drainpipe 2.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of burning boiler for absorbing storage tail gas heat quantity, including pedestal (1), which is characterized in that the top of the pedestal (1)
It is fixedly installed with boiler body (4), treatment box (9), cooling cylinder (11) and storage bin (12), the bottom end of the boiler body (1)
Fixation is communicated with smoke-intake pipe (8), and the other end of the smoke-intake pipe (8) through treatment box (9) and extends to the interior for the treatment of box (9)
Side is fixedly installed with filter screen (13) and adsorption layer (14), the adsorption layer (14) between the inner wall for the treatment of box (9) two sides
Positioned at the top of filter screen (13), the treatment box (9) is communicated with connecting tube (10), institute far from the side fixation of smoke-intake pipe (8)
The other end of connecting tube (10) is stated through cooling cylinder (11) and extends to the inside of cooling cylinder (11), the top of the cooling cylinder (11)
Portion's fixing sleeve is connected to water inlet pipe (15), and one end that the water inlet pipe (15) is located on the inside of cooling cylinder (11) is fixedly installed with spray head
(19), the spray head (19) is located at the top of connecting tube (10), and the cooling cylinder (11) is fixed far from the side of connecting tube (10)
It is communicated with smoke exhaust pipe (16), the smoke exhaust pipe (16) is located at the top of spray head (19), and the cooling cylinder (11) is far from connecting tube
(10) side fixation is communicated with smoke exhaust pipe (16), and the smoke exhaust pipe (16) is located at the top of spray head (19), the cooling cylinder
(11) the side fixation far from connecting tube (10) is communicated with water-supply-pipe (17), and the other end of the water-supply-pipe (17) runs through storage bin
(12) and the insides of storage bin (12) is extended to, the pedestal (1) is located at the top between cooling cylinder (11) and storage bin (12)
It is fixedly installed with water pump (18), the water pump (18) is connected to the fixation of the inside of water-supply-pipe (17).
2. a kind of burning boiler for absorbing storage tail gas heat quantity according to claim 1, which is characterized in that the boiler master
The inside of body (4) is fixedly installed with heating duct (5), and fixation is communicated with heating between the adjacent side of the heating duct (5)
Branch pipe (6).
3. a kind of burning boiler for absorbing storage tail gas heat quantity according to claim 1, which is characterized in that the boiler master
The inside of body (4) offers inlet channel (7), and the inlet channel (7) is located between heating duct (5) and heating branch pipe (6).
4. a kind of burning boiler for absorbing storage tail gas heat quantity according to claim 1, which is characterized in that the boiler master
It is fixedly installed with water tank (3) between the inner wall of body (4) two sides, the water tank (3) is located at the lower section of heating duct (5).
5. a kind of burning boiler for absorbing storage tail gas heat quantity according to claim 4, which is characterized in that the water tank
(5) bottom fixation is communicated with drainpipe (2), and the bottom end of the drainpipe (2) through boiler body (4) and extends to boiler master
The outside of body (4).
6. a kind of burning boiler for absorbing storage tail gas heat quantity according to claim 1, which is characterized in that the treatment box
(9) it is fixedly installed between the inner wall of two sides collecting box (20), the collecting box (20) is located at the lower section of smoke-intake pipe (8).
7. a kind of burning boiler for absorbing storage tail gas heat quantity according to claim 1, which is characterized in that the collecting box
(20) bottom fixation is communicated with surge drum (21), and the bottom end of the surge drum (21) through treatment box (9) and pedestal (1) and is prolonged
Extend to the outside of pedestal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810993404.3A CN109099726A (en) | 2018-08-29 | 2018-08-29 | Combustion boiler capable of absorbing and storing heat of tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810993404.3A CN109099726A (en) | 2018-08-29 | 2018-08-29 | Combustion boiler capable of absorbing and storing heat of tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109099726A true CN109099726A (en) | 2018-12-28 |
Family
ID=64863946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810993404.3A Withdrawn CN109099726A (en) | 2018-08-29 | 2018-08-29 | Combustion boiler capable of absorbing and storing heat of tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099726A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006064A (en) * | 2019-05-15 | 2019-07-12 | 烟台职业学院 | A kind of gas fired-boiler convenient for absorbing storage tail gas heat quantity |
| CN111928482A (en) * | 2020-08-04 | 2020-11-13 | 王朝鹏 | Condensing gas-fired hot boiler |
| CN113577944A (en) * | 2021-07-15 | 2021-11-02 | 宁波久丰热电有限公司 | Cleaning device is collected to impurity in boiler waste gas |
-
2018
- 2018-08-29 CN CN201810993404.3A patent/CN109099726A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006064A (en) * | 2019-05-15 | 2019-07-12 | 烟台职业学院 | A kind of gas fired-boiler convenient for absorbing storage tail gas heat quantity |
| CN111928482A (en) * | 2020-08-04 | 2020-11-13 | 王朝鹏 | Condensing gas-fired hot boiler |
| CN113577944A (en) * | 2021-07-15 | 2021-11-02 | 宁波久丰热电有限公司 | Cleaning device is collected to impurity in boiler waste gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181228 |
|
| WW01 | Invention patent application withdrawn after publication |