CN114216341A - Automatic change feed system - Google Patents
Automatic change feed system Download PDFInfo
- Publication number
- CN114216341A CN114216341A CN202111481910.2A CN202111481910A CN114216341A CN 114216341 A CN114216341 A CN 114216341A CN 202111481910 A CN202111481910 A CN 202111481910A CN 114216341 A CN114216341 A CN 114216341A
- Authority
- CN
- China
- Prior art keywords
- hopper
- primary
- cross beam
- material sieve
- charging box
- 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.)
- Pending
Links
- 230000008859 change Effects 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 239000000779 smoke Substances 0.000 abstract description 9
- 208000028571 Occupational disease Diseases 0.000 abstract description 3
- 239000002920 hazardous waste Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 239000000571 coke Substances 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract description 2
- 230000032258 transport Effects 0.000 abstract description 2
- 229910052785 arsenic Inorganic materials 0.000 description 8
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 5
- GOLCXWYRSKYTSP-UHFFFAOYSA-N arsenic trioxide Inorganic materials O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- HJTAZXHBEBIQQX-UHFFFAOYSA-N 1,5-bis(chloromethyl)naphthalene Chemical compound C1=CC=C2C(CCl)=CC=CC2=C1CCl HJTAZXHBEBIQQX-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/04—Obtaining arsenic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0035—Devices for monitoring the weight of quantities added to the charge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
An automatic feeding system comprises a quantitative discharging device, a loading and unloading hopper and a hoisting device; the invention can realize automatic screening and metering, reduce powder entering the furnace, reduce accretion and smoke output, stabilize the furnace condition and reduce the smoke rate, thereby reducing the smoke disposal cost; the metallurgical crane hoists and transports coke and slag into the furnace, so that the vehicle transportation is reduced, the vehicle operation cost is saved, and the safety risk of charging outside the loader is eliminated; meanwhile, personnel do not need to weigh and feed materials on site, the occupational disease hazard caused by long-term direct contact of the personnel with hazardous wastes is reduced, the labor productivity is improved, and the energy conservation and consumption reduction are realized.
Description
Technical Field
The invention belongs to the technical field of hazardous waste treatment, and particularly relates to an automatic feeding system.
Background
For the treatment of high-arsenic smoke dust, the leaching dearsenification and roasting dearsenification processes are mainly adopted at present. The leaching dearsenization is a method of selectively dissolving high-arsenic smoke dust in a leaching agent to transfer arsenic from a solid phase to a liquid phase and finally removing the arsenic from the liquid phase. The roasting dearsenification is mainly to recover arsenic in the form of arsenic trioxide at high temperature, or to prepare simple substance arsenic by reducing and refining crude arsenic trioxide, so as to separate the simple substance arsenic from valuable metals.
In the treatment process, when materials are loaded and unloaded, personnel directly contact the high-arsenic smoke dust and the leachate thereof for a long time, the risk of occupational diseases and dangers is high, and the influence on the health of the personnel is large.
Disclosure of Invention
Aiming at the technical problem, the invention provides an automatic feeding system, which has the specific technical scheme that:
an automatic feeding system comprises a quantitative discharging device, a loading and unloading hopper and a hoisting device;
the quantitative discharging device comprises a support, an upper cross beam and a lower cross beam are arranged on the support, a primary hopper is arranged on the upper cross beam, a support frame I is arranged on the primary hopper and connected with the upper cross beam, a primary discharging hole is formed in the bottom of the primary hopper, a primary material sieve is arranged below the primary discharging hole, a secondary hopper is arranged below the primary material sieve, a weight sensor is arranged on the lower cross beam, a support frame II is arranged on the secondary hopper, and the support frame II is connected with the weight sensor; a secondary feed opening is formed in the bottom of the secondary hopper, and a secondary material sieve is arranged below the secondary feed opening;
a screen is arranged on the first-stage material sieve;
the primary hopper, the secondary hopper, the primary material sieve and the secondary material sieve are all provided with a vibration motor;
the loading and unloading hopper comprises a charging box, a discharging door is arranged at the bottom of the charging box and connected with the charging box through a rotating shaft II, a limiting ring is arranged on the charging box, a hanging rod is arranged in the limiting ring, a limiting head is arranged at one end, close to the discharging door, of the hanging rod, and a hanging ring is arranged at one end, far away from the charging box, of the hanging rod;
the limiting head is provided with a movable rod, and the movable rod is respectively connected with the discharging door and the limiting head through a rotating shaft I;
supporting plates are symmetrically arranged on the side surface of the charging box;
the hoisting device comprises a lifting hook.
Preferably, the device further comprises a charging pit and a feed opening which are arranged below the quantitative discharging device.
Preferably, the first-stage material sieve is provided with a hanging ring I, the hanging ring I is provided with a fixed chain, and the first-stage material sieve is connected with the upper cross beam through the fixed chain.
Preferably, the second-level material sieve is provided with a hanging ring II, the hanging ring II is provided with a fixed chain, and the second-level material sieve is connected with the lower cross beam through the fixed chain.
The invention can realize automatic screening and metering, reduce powder entering the furnace, reduce accretion and smoke output, stabilize the furnace condition and reduce the smoke rate, thereby reducing the smoke disposal cost; the metallurgical crane hoists and transports coke and slag into the furnace, so that the vehicle transportation is reduced, the vehicle operation cost is saved, and the safety risk of charging outside the loader is eliminated; meanwhile, personnel do not need to weigh and feed materials on site, the occupational disease hazard caused by long-term direct contact of the personnel with hazardous wastes is reduced, the labor productivity is improved, and the energy conservation and consumption reduction are realized.
Drawings
FIG. 1 is an overall structural view of the present invention;
FIG. 2 is a schematic structural view of a quantitative discharging device according to the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2 according to the present invention;
FIG. 4 is a front view of a primary hopper of the quantitative discharge device of the present invention;
FIG. 5 is a side view of a primary hopper of the quantitative discharge device of the present invention;
FIG. 6 is a front view of a secondary hopper of the quantitative discharge device of the present invention;
FIG. 7 is a top view of a primary screen of the quantitative discharge device of the present invention;
FIG. 8 is a top view of a secondary screen of the quantitative discharge device of the present invention;
FIG. 9 is a schematic view of the loading hopper configuration of the present invention;
FIG. 10 is a schematic view of the loading hopper loading configuration of the present invention;
FIG. 11 is a schematic structural view of a loading and unloading hopper in a discharging state according to the present invention;
1-support, 2-first-level hopper, 3-second-level hopper, 4-first-level material sieve, 5-second-level material sieve, 6-fixed chain, 101-upper beam, 102-lower beam, 103-weight sensor, 201-first-level feed opening, 202-support frame I, 301-second-level feed opening, 302-support frame II, 401-screen, 402-hanging ring I, 501-hanging ring II;
7-a charging box, 701-a discharging door, 702-a suspender, 703-a hanging ring, 704-a limiting head, 705-a movable rod, 706-a rotating shaft I, 707-a rotating shaft II, 708-a supporting plate and 709-a limiting ring;
8-hoisting device, 801-lifting hook, 9-feed opening, 10-ground and 1001-loading pit.
Detailed Description
As shown in fig. 1 to 11, an automatic feeding system comprises a quantitative discharging device, a loading and unloading hopper and a hoisting device;
the quantitative discharging device comprises a support 1, an upper cross beam 101 and a lower cross beam 102 are arranged on the support 1, a primary hopper 2 is arranged on the upper cross beam 101, a support frame I202 is arranged on the primary hopper 2, the support frame I202 is connected with the upper cross beam 101, a primary discharging port 201 is arranged at the bottom of the primary hopper 2, a primary material sieve 4 is arranged below the primary discharging port 201, a secondary hopper 3 is arranged below the primary material sieve 4, a weight sensor 103 is arranged on the lower cross beam 102, a support frame II302 is arranged on the secondary hopper 3, and the support frame II302 is connected with the weight sensor 103; a secondary feed opening 301 is formed in the bottom of the secondary hopper 3, and a secondary material sieve 5 is arranged below the secondary feed opening 301;
a screen 401 is arranged on the first-stage material sieve 4;
the primary hopper 2, the secondary hopper 3, the primary material sieve 4 and the secondary material sieve 5 are all provided with a vibration motor;
the loading and unloading hopper comprises a charging box 7, a discharging door 701 is arranged at the bottom of the charging box 7, the discharging door 701 is connected with the charging box 7 through a rotating shaft II707, a limiting ring 709 is arranged on the charging box 7, a hanging rod 702 is arranged in the limiting ring 709, a limiting head 704 is arranged at one end, close to the discharging door 701, of the hanging rod 702, and a hanging ring 703 is arranged at one end, far away from the charging box 7, of the hanging rod 702;
a movable rod 705 is arranged on the limiting head 704, and the movable rod 705 is respectively connected with the discharging door 701 and the limiting head 704 through a rotating shaft I706;
the side surface of the charging box 7 is symmetrically provided with a supporting plate 708;
the lifting device comprises a lifting hook 801.
Preferably, a charging pit 1001 and a discharge opening 9 are further included below the quantitative discharge device.
Preferably, a hanging ring I402 is arranged on the first-stage material sieve 4, a fixed chain 6 is arranged on the hanging ring I402, and the first-stage material sieve 4 is connected with the upper cross beam 101 through the fixed chain 6.
Preferably, a hanging ring II501 is arranged on the secondary material sieve 5, a fixed chain 6 is arranged on the hanging ring II501, and the secondary material sieve 4 is connected with the lower cross beam 102 through the fixed chain 6.
During the operation of this system, put into one-level hopper 2 with the material earlier, start shock dynamo, the material falls into one-level material sieve 4, and the powder is sieved from screen cloth 401, and cubic material falls into second grade hopper 3, utilizes weighing transducer 103 to weigh, and after weight reached predetermined numerical value, the shock dynamo on the one-level hopper 2 was closed, started the shock dynamo on the second grade hopper 3, carried the material in second grade material sieve 5.
The loading and unloading hopper is placed below the secondary material sieve 5, and a loading pit 1001 can be arranged below the quantitative unloading device, so that the overall height of the quantitative unloading device is reduced, the material lifting difficulty is reduced, and the applicability is improved.
When the loading and unloading hopper is hoisted, the suspension rod 702 drives the limiting head 704 to move upwards, and the movable rod 705 drives the unloading door 701 to close. After the charging box 7 filled with materials is hoisted above the discharging opening 9, the charging box 7 is put down at a constant speed, the supporting plates 708 on the two sides support the charging box 7, the suspender 702 is loosened, and the discharging door 701 is opened under the action of gravity of the materials in the charging box for discharging.
Claims (4)
1. An automatic feeding system is characterized by comprising a quantitative discharging device, a loading and unloading hopper and a hoisting device;
the quantitative discharging device comprises a support (1), wherein an upper cross beam (101) and a lower cross beam (102) are arranged on the support (1), a primary hopper (2) is arranged on the upper cross beam (101), a support frame I (202) is arranged on the primary hopper (2), the support frame I (202) is connected with the upper cross beam (101), a primary discharging opening (201) is arranged at the bottom of the primary hopper (2), a primary material sieve (4) is arranged below the primary discharging opening (201), a secondary hopper (3) is arranged below the primary material sieve (4), a weight sensor (103) is arranged on the lower cross beam (102), a support frame II (302) is arranged on the secondary hopper (3), and the support frame II (302) is connected with the weight sensor (103); a secondary feed opening (301) is formed in the bottom of the secondary hopper (3), and a secondary material sieve (5) is arranged below the secondary feed opening (301);
a screen (401) is arranged on the first-stage material sieve (4);
the primary hopper (2), the secondary hopper (3), the primary material sieve (4) and the secondary material sieve (5) are all provided with vibration motors;
the loading and unloading hopper comprises a charging box (7), a discharging door (701) is arranged at the bottom of the charging box (7), the discharging door (701) is connected with the charging box (7) through a rotating shaft II (707), a limiting ring (709) is arranged on the charging box (7), a hanging rod (702) is arranged in the limiting ring (709), a limiting head (704) is arranged at one end, close to the discharging door (701), of the hanging rod (702), and a hanging ring (703) is arranged at one end, far away from the charging box (7), of the hanging rod (702);
a movable rod (705) is arranged on the limiting head (704), and the movable rod (705) is respectively connected with the discharging door (701) and the limiting head (704) through a rotating shaft I (706);
supporting plates (708) are symmetrically arranged on the side surfaces of the charging box (7);
the hoisting device comprises a lifting hook (801).
2. An automated feeding system according to claim 1, further comprising a loading pit (1001) and a discharge opening (9) arranged below the dosing and discharge device.
3. The automatic feeding system of claim 1, wherein a hanging ring I (402) is arranged on the primary material sieve (4), a fixed chain (6) is arranged on the hanging ring I (402), and the primary material sieve (4) is connected with the upper cross beam (101) through the fixed chain (6).
4. The automatic feeding system of claim 1, wherein the secondary material screen (5) is provided with a hanging ring II (501), the hanging ring II (501) is provided with a fixed chain (6), and the secondary material screen (4) is connected with the lower cross beam (102) through the fixed chain (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111481910.2A CN114216341A (en) | 2021-12-07 | 2021-12-07 | Automatic change feed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111481910.2A CN114216341A (en) | 2021-12-07 | 2021-12-07 | Automatic change feed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114216341A true CN114216341A (en) | 2022-03-22 |
Family
ID=80699908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111481910.2A Pending CN114216341A (en) | 2021-12-07 | 2021-12-07 | Automatic change feed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114216341A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190426826A (en) * | 1904-12-09 | 1905-11-09 | George Watson | Improvements in Furnaces for the Destruction of Refuse and in Apparatus for Handling and Storing in connection therewith. |
| CN101762165A (en) * | 2009-11-25 | 2010-06-30 | 郴州市金贵银业股份有限公司 | Automatic discharge device |
| CN205217040U (en) * | 2015-10-28 | 2016-05-11 | 赣州市芯隆新能源材料有限公司 | Broken powder process device |
| CN205808123U (en) * | 2016-06-07 | 2016-12-14 | 万泰和汽车材料（武汉）有限公司 | A kind of aluminium ingot melting transport feeding device |
| CN107055124A (en) * | 2017-03-30 | 2017-08-18 | 太重（天津）重型装备科技开发有限公司 | Delivery device and Supplying Sieving Mechanism |
| CN207709352U (en) * | 2017-11-30 | 2018-08-10 | 上海早苗食品有限公司 | A kind of suspension type screening machine |
| CN109775393A (en) * | 2019-01-30 | 2019-05-21 | 中冶南方都市环保工程技术股份有限公司 | Garbage incinerating power plant clinker feeding system |
| CN210399958U (en) * | 2019-07-10 | 2020-04-24 | 广东飞南资源利用股份有限公司 | Charging hopper for smelting furnace feeding |
| CN111322873A (en) * | 2018-12-13 | 2020-06-23 | 株洲弗拉德科技有限公司 | Charging device for three-dimensional high-temperature continuous heat treatment production system |
| CN211476733U (en) * | 2019-12-18 | 2020-09-11 | 芜湖东旭光电科技有限公司 | Kiln feeder water cooling jacket cooling system and kiln feeding system |
| CN112850503A (en) * | 2021-01-22 | 2021-05-28 | 南京凯盛国际工程有限公司 | Feeding system |
| CN213557483U (en) * | 2020-10-27 | 2021-06-29 | 沈阳百利昌科技有限公司 | Feeding device for chemical product processing |
-
2021
- 2021-12-07 CN CN202111481910.2A patent/CN114216341A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190426826A (en) * | 1904-12-09 | 1905-11-09 | George Watson | Improvements in Furnaces for the Destruction of Refuse and in Apparatus for Handling and Storing in connection therewith. |
| CN101762165A (en) * | 2009-11-25 | 2010-06-30 | 郴州市金贵银业股份有限公司 | Automatic discharge device |
| CN205217040U (en) * | 2015-10-28 | 2016-05-11 | 赣州市芯隆新能源材料有限公司 | Broken powder process device |
| CN205808123U (en) * | 2016-06-07 | 2016-12-14 | 万泰和汽车材料（武汉）有限公司 | A kind of aluminium ingot melting transport feeding device |
| CN107055124A (en) * | 2017-03-30 | 2017-08-18 | 太重（天津）重型装备科技开发有限公司 | Delivery device and Supplying Sieving Mechanism |
| CN207709352U (en) * | 2017-11-30 | 2018-08-10 | 上海早苗食品有限公司 | A kind of suspension type screening machine |
| CN111322873A (en) * | 2018-12-13 | 2020-06-23 | 株洲弗拉德科技有限公司 | Charging device for three-dimensional high-temperature continuous heat treatment production system |
| CN109775393A (en) * | 2019-01-30 | 2019-05-21 | 中冶南方都市环保工程技术股份有限公司 | Garbage incinerating power plant clinker feeding system |
| CN210399958U (en) * | 2019-07-10 | 2020-04-24 | 广东飞南资源利用股份有限公司 | Charging hopper for smelting furnace feeding |
| CN211476733U (en) * | 2019-12-18 | 2020-09-11 | 芜湖东旭光电科技有限公司 | Kiln feeder water cooling jacket cooling system and kiln feeding system |
| CN213557483U (en) * | 2020-10-27 | 2021-06-29 | 沈阳百利昌科技有限公司 | Feeding device for chemical product processing |
| CN112850503A (en) * | 2021-01-22 | 2021-05-28 | 南京凯盛国际工程有限公司 | Feeding system |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220322 |