CN111911949A - High-efficient coal-fired machine - Google Patents

High-efficient coal-fired machine Download PDF

Info

Publication number
CN111911949A
CN111911949A CN202010917733.7A CN202010917733A CN111911949A CN 111911949 A CN111911949 A CN 111911949A CN 202010917733 A CN202010917733 A CN 202010917733A CN 111911949 A CN111911949 A CN 111911949A
Authority
CN
China
Prior art keywords
charging barrel
plate
upper charging
flitch
wall
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Withdrawn
Application number
CN202010917733.7A
Other languages
Chinese (zh)
Inventor
张厚玉
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.)
Huoshan Zhixing Information Technology Co ltd
Original Assignee
Huoshan Zhixing Information 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 Huoshan Zhixing Information Technology Co ltd filed Critical Huoshan Zhixing Information Technology Co ltd
Priority to CN202010917733.7A priority Critical patent/CN111911949A/en
Publication of CN111911949A publication Critical patent/CN111911949A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/16—Over-feed arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
    • 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
    • B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/22—Controlling thickness of fuel bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/10—Pulverizing
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention provides a high-efficiency coal burner which comprises a machine body, wherein a feeding hole and an air inlet are arranged on the end surface of the machine body, a discharging hole is arranged on the end surface opposite to the feeding hole, an air outlet is arranged at the top of the machine body, the feeding hole is connected with an upper charging barrel, a feeding plate is arranged inside the upper charging barrel, one end of the feeding plate is connected with the inner wall of the upper charging barrel through a rotating shaft, a volute spring is sleeved on the rotating shaft, the other end of the feeding plate is placed on a movable baffle, a weight sensor is arranged on the baffle, a screen is arranged above the upper charging barrel, a vibrator is arranged at the bottom of the screen, the air inlet is connected; through setting up the flitch to be equipped with weighing transducer between last flitch and baffle, guarantee the uniformity of single material loading weight, and through setting up crushing kun, smash the cubic thing in the buggy, and through the inlet box, heat the air, reduce the heat that the air was taken away, improve the combustion efficiency of coal machine.

Description

High-efficient coal-fired machine
Technical Field
The invention relates to a coal burner, in particular to a high-efficiency coal burner.
Background
The high coal burner adopts a coal gasification combustion mechanism, and is formed by optimizing and improving a fire grate, a hearth, an air inlet structure and the like of a traditional chain furnace. Raw coal is slowly and orderly fed into the combustor through the chain grate, most of the coal is converted into coal gas, and the coal gas and the high-temperature air which is surplus after the coal is burnt are mixed and combusted to be sprayed out of a fire outlet of the combustor; the existing high coal burner adopts pulverized coal as fuel, the existing high coal burner cannot perform feeding in a timed and quantitative mode during feeding, and part of pulverized coal also contains crushed blocks, so that the pulverized coal cannot be completely combusted during combustion, an induced draft fan of the existing coal burner generally directly drives air into the coal burner, and partial heat is taken away by the air due to the fact that the temperature of the air is low when the air is introduced, and loss is increased.
Disclosure of Invention
The invention provides a high-efficiency coal burner, which solves the problems that the existing coal burner cannot perform feeding in a fixed time and a fixed amount, and the pulverized coal also contains a part of crushed blocks, so that the pulverized coal cannot be completely combusted during combustion.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a high-efficiency coal burner, which comprises a machine body, wherein a feeding hole is arranged at the top of the machine body, an air inlet is arranged on the end surface of the machine body, a discharge hole is arranged on the end surface opposite to the feeding hole, an air outlet is arranged at the top of the machine body, the feeding hole is connected with an upper charging barrel, a feeding plate is arranged inside the upper charging barrel, one end of the feeding plate is connected with the inner wall of the upper charging barrel through a rotating shaft, a scroll spring is sleeved on the rotating shaft, two ends of the scroll spring are respectively connected with the upper charging barrel and the inner wall of the upper charging barrel, the other end of the feeding plate is placed on a baffle, one end of the baffle is connected with a groove in a sliding manner, the groove is arranged on the upper charging barrel, an electric telescopic rod is arranged between the end surface of, the air inlet is connected with the fan, the fan is connected with the air inlet box, the heating plate is arranged inside the air inlet box, an upper air inlet is formed in the top of the air inlet box, a lower air inlet is formed in the end face of the air inlet box, an upper air outlet and a lower air outlet are formed in the end face of the other end of the air inlet box, the upper air outlet and the lower air outlet are respectively arranged above and below the heating plate, the upper air outlet is connected with the fan, the lower air outlet is connected with a waste gas treatment device through a pipeline, the lower air inlet is connected with the air outlet through a pipeline, and the electric telescopic rod, the weight sensor, the vibrator and.
Preferably, go up the flitch top and be equipped with flitch on the second, flitch one end is connected with last feed cylinder inner wall hub connection through last pivot on the second, the cover is equipped with the volute spring in going up the pivot, go up the volute spring both ends and connect flitch and last feed cylinder inner wall on the second respectively, the flitch other end is placed on the overhead gage on the second, upper baffle one end sliding connection upper groove, the upper groove sets up on last feed cylinder, be equipped with the electric telescopic handle on between upper baffle one end terminal surface and the upper groove inner wall, be equipped with weight sensor on the overhead gage, go up electric telescopic handle and last weight sensor and pass through electric connection controlling means.
Preferably, go up flitch top and go up the inside pivot that is equipped with of feed cylinder, be equipped with a plurality of rotor plates on the pivot terminal surface, the rotor plate is the circumference range in the pivot, rotor plate one end contacts with last feed cylinder, pivot one end is passed and is gone up the feed cylinder inner wall and link to each other with the motor, the motor is placed in the frame, the frame links to each other with last feed cylinder terminal surface, the motor passes through electric connection controlling means.
Preferably, a limiting device capable of preventing reverse rotation is arranged at the joint of the rotating shaft and the upper charging barrel shaft
Preferably, an electric slide rail is arranged above the screen, the electric slide rail is connected with the crushing roller through a slide block, the electric slide rail is connected with the rack through a bracket, and the electric slide rail is electrically connected with the control device.
Preferably, the inner wall of the heating box above the heating plate is provided with an electric heater, and the electric heater is electrically connected with the control device.
Preferably, the upper air outlet and the lower air outlet are respectively connected with an upper electromagnetic valve and a lower electromagnetic valve, and the upper electromagnetic valve and the lower electromagnetic valve are electrically connected with a control device.
Preferably, the heating plate is made of metal materials, a temperature sensor is arranged on the heating plate, and the temperature sensor is electrically connected with the control device.
Through the technical scheme, the invention has the beneficial effects that: through setting up the flitch to be equipped with weighing transducer between last flitch and baffle, guarantee the uniformity of single material loading weight, and through setting up crushing kun, smash the cubic thing in the buggy, and through the inlet box, heat the air, reduce the heat that the air was taken away, improve the combustion efficiency of coal machine.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the interior of the air entrainment tank;
FIG. 3 is a schematic view of the interior of the upper barrel;
FIG. 4 is a schematic view of example 2;
FIG. 5 is a schematic of a screen;
figure 6 is a schematic of screens of different sizes.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
According to the figure, the high-efficiency coal burner comprises a machine body 1, wherein a feeding hole 2 is arranged at the top of the machine body 1, an air inlet 4 is arranged on the end surface of the machine body 1, a discharging hole 5 is arranged on the end surface opposite to the feeding hole 4, an air outlet 3 is arranged at the top of the machine body 1, the feeding hole 4 is connected with an upper charging barrel 6, a feeding plate 20 is arranged inside the upper charging barrel 6, one end of the feeding plate 20 is connected with the inner wall shaft of the upper charging barrel 6 through a rotating shaft 21, a scroll spring is sleeved on the rotating shaft 21, two ends of the scroll spring are respectively connected with the inner walls of the upper charging barrel 20 and the upper charging barrel 6, the other end of the feeding plate 20 is placed on a baffle plate 22, one end of the baffle plate 22 is slidably connected with a groove 24, the groove 24 is arranged on the upper charging, a screen 8 is arranged above the upper charging barrel 6, the screen 8 is movably connected on the bracket, a vibrator 38 is arranged at the bottom of the screen 8, the air inlet 4 is connected with a fan 9, the fan 9 is connected with an air inlet box 10, a heating plate 11 is arranged in the air inlet box 10, an upper air inlet 14 is arranged at the top of the air inlet box 10, a lower air inlet 12 is arranged on the end surface of the air inlet box 10, an upper air outlet 15 and a lower air outlet 13 are arranged on the end surface of the other end of the air inlet box 10, the upper air outlet 15 and the lower air outlet 3 are respectively arranged above and below the heating plate 11, the upper air outlet 15 is connected with the fan 9, the lower air outlet 15 is connected with a waste gas treatment device through a pipeline, the lower air inlet 12 is connected with the air outlet 3 through a pipeline, and the electric telescopic rod 36, the weight sensor 23, the vibrator 38 and the fan 9 are electrically connected with the control device.
Preferably, a second feeding plate 26 is arranged above the feeding plate 20, one end of the second feeding plate 26 is connected with the inner wall of the feeding barrel 6 through an upper rotating shaft 27, an upper volute spring is sleeved on the upper rotating shaft 27, two ends of the upper volute spring are respectively connected with the second feeding plate 26 and the inner wall of the feeding barrel 6, the other end of the second feeding plate 26 is placed on the upper baffle plate 20, one end of the upper baffle plate 20 is slidably connected with an upper groove 30, the upper groove 30 is arranged on the feeding barrel 6, an upper electric telescopic rod 31 is arranged between one end face of the upper baffle plate 20 and the inner wall of the upper groove 30, an upper weight sensor 29 is arranged on the upper baffle plate 20, and the upper electric telescopic rod 31 and the upper weight sensor 29 are electrically connected with a control device.
Preferably, an electric slide rail 34 is arranged above the screen 8, the electric slide rail 34 is connected with a crushing roller 36 through a slide block 35, the electric slide rail 34 is connected with the frame 7 through a bracket 37, and the electric slide rail 34 is electrically connected with a control device.
Preferably, an electric heater 19 is arranged on the inner wall of the heating box above the heating plate 11, and the electric heater 19 is electrically connected with a control device.
Preferably, the upper air outlet 15 and the lower air outlet 13 are respectively connected with an upper electromagnetic valve 17 and a lower electromagnetic valve 16, and the upper electromagnetic valve 13 and the lower electromagnetic valve 16 are electrically connected with a control device.
Preferably, the heating plate 11 is made of metal material, a temperature sensor 18 is arranged on the heating plate 11, and the temperature sensor 18 is electrically connected with a control device
When the coal dust screening machine is used specifically, the specification of coal dust is determined, the screen mesh with the corresponding specification is movably connected with the frame, the bottom of the screen mesh is contacted with the vibrator, the screen mesh is vibrated by the vibrator to further screen the coal dust, the breaking roll is driven by the electric slide rail to reciprocate in the screening process to break lumps in the coal dust, then the screened coal dust falls into the second feeding plate, the upper baffle plate moves towards the inner part of the upper groove under the driving of the upper electric telescopic rod after reaching the corresponding weight, the second feeding plate rotates around the inner wall of the upper charging barrel under the driving of the upper electric telescopic rod to fall the coal dust into the feeding plate, the baffle plate moves towards the inner part of the groove under the driving of the electric telescopic rod after reaching the corresponding weight, the feeding plate rotates around the inner wall of the upper charging barrel under the action of the weight and falls into the machine body, and the air inlet of the machine body pumps the heated air in the air inlet box into the machine body, after a period of combustion, the waste residues are discharged through the discharge hole, the waste gas enters the air-entrapping tank through the gas outlet to heat the air, and then enters the waste gas treatment device through the lower gas outlet to be treated.
Example 2
Go up flitch 20 top and go up the inside pivot 32 that is equipped with of feed cylinder, be equipped with a plurality of rotor plates 33 on the 32 terminal surfaces of pivot, rotor plates 33 are the circumference in the pivot and arrange, rotor plates 33 one end contacts with last feed cylinder 6, 6 inner walls of last feed cylinder are passed to pivot 32 one end and are linked to each other with the motor, the motor is placed in the frame, the frame links to each other with 6 terminal surfaces of last feed cylinder, the motor passes through electric connection controlling means, pivot 32 and last feed cylinder axle department of connecting are equipped with stop device 34 that can prevent antiport.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. A high-efficient coal fired machine which characterized in that: the device comprises a machine body, wherein a feeding hole is arranged at the top of the machine body, an air inlet is arranged on the end surface of the machine body, a discharge hole is arranged on the end surface opposite to the feeding hole, an air outlet is arranged at the top of the machine body, the feeding hole is connected with an upper charging barrel, a feeding plate is arranged inside the upper charging barrel, one end of the feeding plate is connected with the inner wall of the upper charging barrel through a rotating shaft, a volute spring is sleeved on the rotating shaft, two ends of the volute spring are respectively connected with the upper charging plate and the inner wall of the upper charging barrel, the other end of the upper charging plate is placed on a baffle, one end of the baffle is slidably connected with a groove, the groove is arranged on the upper charging barrel, an electric telescopic rod is arranged between the end surface of one end of the baffle and the, the fan links to each other with the inlet box, the inside hot plate that is equipped with of inlet box, the inlet box top is equipped with the last gas inlet, be equipped with down the air inlet on the inlet box terminal surface, be equipped with gas outlet and lower gas outlet on the inlet box other end terminal surface, it sets up respectively in hot plate top and below with lower gas outlet to go up the gas outlet, it links to each other with the fan to go up the gas outlet, the gas outlet passes through the pipeline and links to each other with exhaust treatment device down, the gas inlet passes through the pipeline and links to each other with the gas outlet down, electric telescopic handle, weighing transducer, vibrator pass through electric connection controlling means.
2. The high efficiency coal burner of claim 1, wherein: go up flitch top and be equipped with the flitch on the second, flitch one end is connected with last feed cylinder inner wall hub connection through last pivot on the second, the cover is equipped with the volute spring in the last pivot, go up the volute spring both ends and connect flitch and last feed cylinder inner wall on the second respectively, the flitch other end is placed on the overhead gage on the second, upper shield one end sliding connection upper groove, the upper groove sets up on last feed cylinder, be equipped with electric telescopic handle between overhead gage one end terminal surface and the upper groove inner wall, be equipped with weighing transducer on the overhead gage, go up electric telescopic handle and last weighing transducer and pass through electric connection controlling means.
3. The high efficiency coal burner of claim 1, wherein: go up flitch top and go up the inside pivot that is equipped with of feed cylinder, be equipped with a plurality of rotor plates on the pivot terminal surface, the rotor plate is the circumference range in the pivot, rotor plate one end contacts with last feed cylinder, pivot one end is passed and is gone up the feed cylinder inner wall and link to each other with the motor, the motor is placed in the frame, the frame links to each other with last feed cylinder terminal surface, the motor passes through electric connection controlling means.
4. The high efficiency coal burner of claim 3, wherein: and a limiting device capable of preventing reverse rotation is arranged at the joint of the rotating shaft and the upper charging barrel.
5. The high efficiency coal burner of claim 1, wherein: the screen cloth top is equipped with electronic slide rail, electronic slide rail passes through the slider and connects crushing kun, electronic slide rail passes through the support and links to each other with the frame, electronic slide rail passes through electric connection controlling means.
6. The high efficiency coal burner of claim 1, wherein: and an electric heater is arranged on the inner wall of the heating box above the heating plate and is electrically connected with the control device.
7. The high efficiency coal burner of claim 1, wherein: the upper air outlet and the lower air outlet are respectively connected with an upper electromagnetic valve and a lower electromagnetic valve, and the upper electromagnetic valve and the lower electromagnetic valve are electrically connected with a control device.
8. The high efficiency coal burner of claim 1, wherein: the heating plate is made of metal materials, a temperature sensor is arranged on the heating plate, and the temperature sensor is electrically connected with the control device.
CN202010917733.7A 2020-09-03 2020-09-03 High-efficient coal-fired machine Withdrawn CN111911949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010917733.7A CN111911949A (en) 2020-09-03 2020-09-03 High-efficient coal-fired machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010917733.7A CN111911949A (en) 2020-09-03 2020-09-03 High-efficient coal-fired machine

Publications (1)

Publication Number Publication Date
CN111911949A true CN111911949A (en) 2020-11-10

Family

ID=73267610

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010917733.7A Withdrawn CN111911949A (en) 2020-09-03 2020-09-03 High-efficient coal-fired machine

Country Status (1)

Country Link
CN (1) CN111911949A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114537807A (en) * 2022-02-21 2022-05-27 湖南省天味食品配料有限公司 Seasoning packaging equipment based on pre-action

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114537807A (en) * 2022-02-21 2022-05-27 湖南省天味食品配料有限公司 Seasoning packaging equipment based on pre-action
CN114537807B (en) * 2022-02-21 2024-02-09 湖南省天味食品配料有限公司 Condiment encapsulation equipment based on pre-action

Similar Documents

Publication Publication Date Title
CN215975562U (en) Novel environment-friendly lime shaft kiln
CN109442387A (en) Biomass rotary fire grate combustor
CN111911949A (en) High-efficient coal-fired machine
CN204881013U (en) Drying device for sesame
CN213356970U (en) Carbonization material production system based on DCS control
CN103712226B (en) It is applied to the circulation pulverized coal preparation system of middle-size and small-size industrial coal powder boiler
CN102517056B (en) Self-supplied heat source type of brown coal drying destructive distillation upgrading equipment
CN209371225U (en) Biomass rotary fire grate combustor
CN212319765U (en) Biological particle three-combustion-chamber all-steel energy-saving hot blast stove
CN211498363U (en) Gas-heated asphalt mixture heating bin
CN213119506U (en) Biomass hot blast stove
CN103234338B (en) Efficient direct-heating dryer for powdery materials
CN101629775A (en) Fully bubbling fluidized bed drier and novel process thereof for loading and preparing furnace coal
CN2711552Y (en) Dry type cooling conveyer and system for high temperature slag of coal boiler in electric power factory
CN2225471Y (en) High efficiency energy saving gypsum revolving calcining kiln
CN209721597U (en) A kind of active carbon produces feeding system automatically
CN209144075U (en) Coal drying, destructive distillation upgrading device
CN111578261A (en) Bottom material laying chain-row type hot blast stove and operation method thereof
CN207831913U (en) A kind of aluminum melting furnace heating chamber
CN218455388U (en) Novel inflammable material preheats structure
CN212221589U (en) Conveying device for feeding pulverized coal into kiln
CN100453939C (en) Tech. for baking dry quartz sand by rotating drum
CN203286865U (en) Efficient directly-heated type powdery material dryer
CN220669785U (en) Flue gas furnace convenient for slag discharge
CN209326090U (en) A kind of energy-saving hot blast furnace

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20201110