WO2013145515A1 - Appareil d'allumage de machine de frittage et machine de frittage - Google Patents

Appareil d'allumage de machine de frittage et machine de frittage Download PDF

Info

Publication number
WO2013145515A1
WO2013145515A1 PCT/JP2013/000371 JP2013000371W WO2013145515A1 WO 2013145515 A1 WO2013145515 A1 WO 2013145515A1 JP 2013000371 W JP2013000371 W JP 2013000371W WO 2013145515 A1 WO2013145515 A1 WO 2013145515A1
Authority
WO
WIPO (PCT)
Prior art keywords
burner
fuel gas
sintering machine
air
ignition device
Prior art date
Application number
PCT/JP2013/000371
Other languages
English (en)
Japanese (ja)
Inventor
浩臣 宮田
竹内　忍
冬樹 相馬
Original Assignee
Ｊｆｅスチール株式会社
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 Ｊｆｅスチール株式会社 filed Critical Ｊｆｅスチール株式会社
Priority to JP2013525071A priority Critical patent/JP5387803B1/ja
Priority to CN201380013580.1A priority patent/CN104169668B/zh
Priority to KR1020147027925A priority patent/KR101633210B1/ko
Priority to IN1757KON2014 priority patent/IN2014KN01757A/en
Publication of WO2013145515A1 publication Critical patent/WO2013145515A1/fr
Priority to PH12014501845A priority patent/PH12014501845A1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F27B21/06—Endless-strand sintering machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D2099/004—Heating elements or systems using burners directed upon the charge, e.g. vertically

Definitions

  • the present invention relates to an ignition device used in a sintering machine for producing sintered ore, and a sintering machine provided with the ignition device.
  • an ignition device of a sintering machine for producing sintered ore is composed of heavy oil, coke oven gas or coke oven gas and blast furnace gas from a burner toward the upper surface of a sintering raw material layer charged on a pallet.
  • a combustion flame is formed by injecting a fuel such as a mixed gas and air and air, and the coke in the sintering raw material layer is burned by heating the sintering raw material layer with the combustion flame.
  • FIG. 6 shows a sintering machine in which the ignition device according to the present invention is installed.
  • 1 is a pallet
  • 2 is a wind box
  • 3 is an ignition device (ignition apparatus), and mainly comprises an ignition furnace 3a and a burner 3b
  • 4 is a hearth layer.
  • the hopper for 5 and a raw material hopper are shown.
  • Patent Document 1 An ignition device disclosed in Japanese Patent Laid-Open No. 59-200193 (Patent Document 1) includes a fuel gas passage and a combustion air passage extending in the width direction of a pallet of a sintering machine, and fuel supplied from these passages A burner provided with a plurality of nozzle holes that are opened in a direction in which the flow of gas and combustion air ejected each other, separated from each other along the length direction of each of the passages. Patent Document 1 discloses a technique for shortening a flame and greatly improving energy loss by injecting fuel gas and air so as to intersect with a small diameter nozzle hole.
  • Patent Document 1 when the combustion chamber is small and the burner height is low, there is an advantage in that the amount of heat dissipated in the furnace body is small and the amount of fuel used is suppressed. On the other hand, when the sintering raw material layer is heated, There is a possibility of damaging the burner body due to radiant heat from the raw material to the burner and heat of the flame itself.
  • Patent Document 2 discloses that the burner tip made of heat-resistant cast steel has a larger coefficient of linear expansion than that of mild steel, so that the elongation of the burner tip during operation is large.
  • the thermal expansion absorption margin is provided by dividing the burner tip into multiple parts in the pallet width direction to prevent cracks associated with expansion and contraction.
  • Patent Document 2 discloses that the flame becomes a short flame by injecting the fuel gas and air so as to intersect at right angles, and the nozzle hole diameter is larger than the central portion with respect to the excessively ventilated portion of both ends of the pallet. Is increased stepwise to enable uniform ignition in the width direction.
  • a fuel gas passage extending across the width direction of the pallet of the sintering machine; An air passage extending on both sides of the fuel gas passage; A plurality of nozzle holes opened in a direction in which the jet flow of the fuel gas from the fuel gas passage and the jet flow of the combustion air from the air passage meet each other, the fuel gas passage and the air passage Burners provided apart along the length direction of A burner hood that covers the combustion atmosphere below the nozzle hole; Have The burner is a burner obtained by welding a stainless steel plate. Sintering machine ignition device.
  • the sintering machine ignition device according to [1], wherein the jet flow of the fuel gas and the jet flow of the combustion air meet at an angle of 30 degrees to 60 degrees.
  • the multiple pairs of nozzle holes include fuel gas nozzle holes and air nozzle holes, The fuel gas nozzle hole is provided on the center side of the burner and opens in a direction facing the outside, The air nozzle hole opens inwardly on the outside of the burner;
  • the ignition device for a sintering machine according to [1].
  • a plurality of ignition devices for the sintering machine according to any one of [1] to [4] are arranged in the width direction of the pallet of the sintering machine with a gap for absorbing thermal elongation, and the temperature in the ignition furnace A sintering machine provided so that the ends of adjacent burners are in close contact with each other by thermal expansion in an atmosphere.
  • a igniter for a sintering machine having a uniform ignition strength in the width direction of the sintering machine pallet and a low fuel consumption rate, and being resistant to thermal stress even in a use environment in which operation and stop are frequently repeated.
  • An ignition device can be provided.
  • FIG. 1 It is sectional drawing of the ignition device by this invention. It is a front view which shows a sintering machine pallet and a part of ignition device as a cross section. It is sectional drawing of the conventional ignition device. It is a figure showing the relationship between the distance from a burner front-end
  • Table 1 shows the results of comparing the effects of material changes. Since the material of the burner was changed from heat-resistant cast steel to stainless steel with a burner body and burner nozzle, the fuel leakage due to flange distortion was eliminated. The residual stress and burner distortion were reduced by reducing the thickness of the burner and nozzle. As a result, it became a burner that can be used for a long time even in a usage environment in which operation and suspension are frequently repeated.
  • Table 2 shows the results of evaluating durability by installing an experimental burner having a burner width of 500 mm in an experimental combustion furnace.
  • An iron plate is laid on the opposite surface of the burner in the furnace so that the burner receives radiant heat from below.
  • the iron plate temperature is 1300 ° C equivalent to the normal sintering machine operation and 1350 ° C condition assuming the operation of the sintering machine fluctuating, repeating the specified temperature keep for 30 minutes and the temperature reduction, and the burner The damage situation of was observed.
  • thermal deformation was eliminated by changing the burner from a conventional heat resistant cast steel split structure to a relatively thin welded stainless steel plate.
  • the surface temperature of the sintering material layer (corresponding to the furnace temperature during the test) is 1300 ° C, and cracks are prevented by making the burner material stainless in the normal operating range. Is possible. Even if the furnace temperature rises to 1350 ° C due to fluctuations in the operation of the sintering machine, the angle at which the jets of fuel gas and combustion air meet each other is made to meet an acute angle of 90 degrees to 60 degrees and 40 degrees. It was found that the crack frequency of the nozzle part can be reduced by lowering the nozzle part temperature.
  • the relationship between the distance from the burner nozzle and the flame temperature is shown in FIG.
  • the angle at which the jets of fuel gas and combustion air meet each other becomes sharper, the flame portion having a temperature of 1300 ° C. or higher becomes longer, and the distance between the burner and the heating surface needs to be increased.
  • the angle at which the jet flows meet each other is in the range of 30 to 60 degrees, the temperature from the burner nozzle to 100 mm is greatly reduced, which is suitable for lowering the nozzle part temperature and preventing the occurrence of cracks in the nozzle part.
  • the angle at which the jet flows meet each other is less than 30 degrees, the burner flame length becomes as long as more than 850 mm, which is not preferable because the burner hood becomes larger and energy loss increases.
  • a plurality of burners manufactured by welding the stainless steel plate of the present invention are used side by side in the width direction of the sintering machine.
  • the combustion conditions in the width direction of the sintering machine can be individually changed and adjusted by looking at the temperature distribution during operation, and the operation conditions such as the distribution of the raw material layer thickness change.
  • the temperature distribution in the width direction can be adjusted.
  • thermal expansion absorption allowance between a plurality of burners. If the temperature of the thermal expansion allowance is set so that the end of the adjacent burner is in close contact with the thermal expansion in the temperature atmosphere in the ignition furnace during operation, ambient air is sucked from the expansion allowance during operation and ignited. The frame is not disturbed.
  • the burner was made lighter by using a stainless steel plate for the burner, the burner support structure could be simplified and the installation work was facilitated.
  • FIG. 2 shows a cross section of a part of the sintering machine pallet and the ignition device.
  • Bb is a burner body
  • Bt is a burner tip
  • F is a flame
  • L is a distance from the burner tip to the surface of the sintered raw material layer.
  • a fuel gas supply pipe 8 and an air supply pipe 9 are provided over the entire width of the pallet, and a plurality of burners including the fuel gas pipe 6 and the combustion air pipe 7 are substantially the same as the fuel gas supply pipe 8 and the air supply pipe 9. They are arranged in parallel with a gap for thermal expansion.
  • the gas pipe 6 and the gas supply pipe 8 are individually communicated with each other via a short pipe 10, and the air pipe 7 and the air supply pipe 9 are individually communicated with each other via a short pipe 11.
  • the fuel gas supply pipe 8 and the air supply pipe 9 are supported by a girder 26.
  • nozzle holes 20, 20 ', 21, 21' respectively corresponding to the fuel gas supply pipe 8 and the air supply pipe 9 of the burner are shown in FIG. Many sets are arranged in the axial direction.
  • the fuel gas nozzle holes 20 and 20 ′ are opened in a direction facing both outer sides, and the air nozzle holes 21 and 21 ′ are opened inward, and the fuel gas nozzle 21 (21 ′) and the air nozzle are opened. It is preferable to arrange so that the injection directions of 20 (20 ′) intersect each other and to make the frame a short flame.
  • FIG. 1 is a sectional view of an ignition device according to the present invention.
  • the burner body and the burner tip are integrated.
  • COG is illustrated as the fuel gas.
  • ⁇ represents an angle at which the jets of fuel gas and combustion air meet each other.
  • the larger the angle at which the injection directions intersect each other the shorter the burner flame length, and it is advantageous to reduce the energy loss by narrowing the distance between the upper surface of the sintered raw material layer on the pallet and the burner.
  • the angle at which the jetting directions intersect with each other is small, the burner flame length becomes long, but the temperature of the nozzle portion becomes low, and the problem of nozzle portion cracking and thermal deformation hardly occurs.
  • the angle at which the injection directions meet each other is preferably 30 degrees or more and 60 degrees or less.
  • a burner hood 24a covering the combustion atmosphere below the nozzle hole extends from both sides of the nozzle holes 21 and 21 '.
  • the hole diameters and pitches of the nozzle holes 20, 20 ′, 21, 21 ′ should be appropriately adjusted according to the type of fuel gas and the flow rates of the fuel gas and air, but the hole diameter is 5 to 30 mm and the pitch is 10 ⁇ 40 mm is preferred. When the pitch is too wide, there is a problem that a portion having a low temperature is generated between the flames and the sintered ore can be burned unevenly.
  • the fuel gas is preferably a gas having a calorific value of 2 to 25 kcal / Nm 3 .
  • M gas mixed gas of blast furnace gas and coke oven gas
  • C gas coke oven gas
  • liquefied natural gas propane gas, etc.
  • propane gas etc.
  • the calorific value of the fuel gas is less than 2 kcal / Nm 3 , the amount of fuel used increases, which is uneconomical. From the viewpoint of a self-cooling function of cooling from the inside with combustion gas / air, it is more preferable to use a fuel gas having a calorific value of 15 kcal / Nm 3 or less.
  • Adjusting the hole diameter according to the distribution of the passing airflow in the width direction of the sintering machine bed is also preferable in terms of uniform heating, but if the fuel gas and air flow rates are adjusted for each burner arranged in multiple units, uniform ignition in the width direction is possible. Possible. In addition, it is possible to change and adjust the combustion conditions for each burner by looking at the temperature distribution during operation, and the temperature distribution in the width direction can be adjusted even if the operating conditions such as the distribution of the raw material layer thickness change. It becomes.
  • each burner may be configured so that the vertical angle can be changed.
  • the contact area between the surface of the sintering raw material layer and the frame tip can be made variable, so that the accuracy of uniform ignition can be improved.
  • the burner according to changes in the sintering raw material layer thickness, pallet speed changes, raw material properties, changes in moisture in the raw material, etc., the head of the ore quality, yield improvement, fuel savings, etc. A remarkable effect is obtained.
  • the ignition burner made of heat-resistant cast steel was changed to a burner made by welding a stainless steel plate (SUS316).
  • the burner made of heat-resistant cast steel was a burner integrally formed over the entire sintering machine width of 3950 mm.
  • the burner welded with a stainless steel plate had five 800 mm width burners arranged side by side in the transverse direction of the sintering machine pallet.
  • the angle of the jet flow of fuel gas and combustion air was 90 degrees for the heat-resistant cast steel burner, but was changed to 40 degrees for the stainless steel burner.
  • M gas was used as the fuel gas, and the operation was performed so that the surface temperature of the sintering material layer was 1300 ° C.
  • repair time is repair time also including repair of sintering machine facilities other than a burner.
  • Burner body Bt Burner tip F Flame L Distance from burner tip to sintering raw material layer surface 1 Pallet 2 Windbox 3 Ignition device 3a Ignition furnace 3b Burner 4 Floor hopper 5 Raw material hopper 6 Fuel gas pipe 7 Combustion air pipe 8 Fuel gas supply pipe 8a Center flow path in fuel gas pipe 9 Air supply pipe 9a Tubular flow path of air pipe 10, 11 Short tube 17, 17 'flange 20, 20 ', 21, 21' Nozzle hole 24 (24a, 24b) Burner food 26 Girder

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)

Abstract

L'invention concerne un appareil d'allumage de machine de frittage ayant : un passage de gaz combustible s'étendant dans le sens de la largeur de la palette d'une machine de frittage ; des passages de gaz d'air s'étendant sur les deux côtés du passage de gaz combustible, le passage de gaz combustible se trouvant entre ; des brûleurs ayant de multiples paires de trous de buse, qui s'ouvrent dans la direction dans laquelle le flux de gaz combustible à partir du passage de gaz combustible et l'écoulement d'air de combustion depuis le passage d'air se mélangent, et sont prévus de manière séparée dans le sens de la longueur du passage de gaz combustible et du passage d'air ; et une hotte de brûleur recouvrant l'environnement de combustion sous les trous de buse. Les brûleurs sont formés en soudant des plaques en acier inoxydable.
PCT/JP2013/000371 2012-03-29 2013-01-25 Appareil d'allumage de machine de frittage et machine de frittage WO2013145515A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2013525071A JP5387803B1 (ja) 2012-03-29 2013-01-25 焼結機の点火装置および焼結機
CN201380013580.1A CN104169668B (zh) 2012-03-29 2013-01-25 烧结机的点火装置及烧结机
KR1020147027925A KR101633210B1 (ko) 2012-03-29 2013-01-25 소결기의 점화 장치 및 소결기
IN1757KON2014 IN2014KN01757A (fr) 2012-03-29 2013-01-25
PH12014501845A PH12014501845A1 (en) 2012-03-29 2014-08-15 Ignition apparatus for sintering machine and sintering machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-076358 2012-03-29
JP2012076358 2012-03-29

Publications (1)

Publication Number Publication Date
WO2013145515A1 true WO2013145515A1 (fr) 2013-10-03

Family

ID=49258843

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/000371 WO2013145515A1 (fr) 2012-03-29 2013-01-25 Appareil d'allumage de machine de frittage et machine de frittage

Country Status (8)

Country Link
JP (1) JP5387803B1 (fr)
KR (1) KR101633210B1 (fr)
CN (1) CN104169668B (fr)
IN (1) IN2014KN01757A (fr)
MY (1) MY157876A (fr)
PH (1) PH12014501845A1 (fr)
TW (1) TWI528010B (fr)
WO (1) WO2013145515A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426724A (ja) * 1990-05-22 1992-01-29 Kawasaki Steel Corp 焼結機の点火装置
JPH0428826A (ja) * 1990-05-24 1992-01-31 Kawasaki Steel Corp 焼結機の点火装置
JPH04309707A (ja) * 1991-04-04 1992-11-02 Nkk Corp 焼結原料点火用バーナ
JPH0590296U (ja) * 1992-05-14 1993-12-10 川崎製鉄株式会社 焼結機の点火装置
JPH06257956A (ja) * 1993-03-08 1994-09-16 Kawasaki Steel Corp 焼結機の点火装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133333A (ja) * 1983-01-20 1984-07-31 Sumitomo Metal Ind Ltd 焼結鉱の燃焼方法
JPS59200183A (ja) 1983-04-28 1984-11-13 川崎製鉄株式会社 焼結機の点火装置
CN2041391U (zh) * 1988-09-03 1989-07-19 鞍山黑色冶金矿山设计研究院 带状分段式多孔燃烧器
JP2001065824A (ja) * 1999-08-30 2001-03-16 Kawasaki Steel Corp 焼結機点火炉用バーナー
JP4735682B2 (ja) * 2008-08-21 2011-07-27 Ｊｆｅスチール株式会社 焼結鉱の製造方法および焼結機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426724A (ja) * 1990-05-22 1992-01-29 Kawasaki Steel Corp 焼結機の点火装置
JPH0428826A (ja) * 1990-05-24 1992-01-31 Kawasaki Steel Corp 焼結機の点火装置
JPH04309707A (ja) * 1991-04-04 1992-11-02 Nkk Corp 焼結原料点火用バーナ
JPH0590296U (ja) * 1992-05-14 1993-12-10 川崎製鉄株式会社 焼結機の点火装置
JPH06257956A (ja) * 1993-03-08 1994-09-16 Kawasaki Steel Corp 焼結機の点火装置

Also Published As

Publication number Publication date
MY157876A (en) 2016-07-26
CN104169668B (zh) 2016-08-17
KR20140131392A (ko) 2014-11-12
IN2014KN01757A (fr) 2015-10-23
TWI528010B (zh) 2016-04-01
PH12014501845B1 (en) 2014-11-17
PH12014501845A1 (en) 2014-11-17
JPWO2013145515A1 (ja) 2015-12-10
CN104169668A (zh) 2014-11-26
JP5387803B1 (ja) 2014-01-15
TW201341744A (zh) 2013-10-16
KR101633210B1 (ko) 2016-06-23

Similar Documents

Publication Publication Date Title
CN107075379B (zh) 在次级加热室中具有改进的废气输送的炼焦炉
CN105222581B (zh) 采用步进梁式加热炉加热低温钢坯的方法
KR880001688B1 (ko) 소결기(燒結機)의 점화장치
KR100964904B1 (ko) 소둔로용 가열장치
JP4747599B2 (ja) 焼結鉱の製造方法および製造装置
CN103438438A (zh) 膜式水冷壁锅炉防高温腐蚀结焦方法及其装置
CN105819670A (zh) 浮法玻璃生产线流道闸板的升温炉及升温和更换方法
KR20090131118A (ko) 코크스 로 연소실 가스 공급 시스템
JP5387803B1 (ja) 焼結機の点火装置および焼結機
JP2013194991A (ja) 焼結機点火炉用バーナ
KR100870980B1 (ko) 고효율 단조 가열로
JP2006132826A (ja) 焼結機の点火用マルチバーナおよび点火システムと焼結原料の加熱方法
CN102213417B (zh) 一种强制通风无焰燃烧器
US20220074592A1 (en) Assembly and method for injecting a gaseous combustion agent
CN101875533B (zh) 一种提高玻璃被弯弧钢化前温度的加热工艺及其装置
CN203549797U (zh) 膜式水冷壁锅炉防高温腐蚀结焦装置
JP2010107066A (ja) 焼結点火炉および焼結鉱の製造方法
US8087929B2 (en) Equipment and method for heating gas in connection with sintering
CN104155328A (zh) 一种富氧烧结试验装置
CN204630380U (zh) 烧结点火炉用烘炉系统
JP6421851B2 (ja) 焼結機点火炉用バーナ
CN2539063Y (zh) Rh炉烘烤装置
CN207958208U (zh) 一种炭黑反应炉的煤气分配装置
JP2534419B2 (ja) 焼結機の点火装置
KR102032755B1 (ko) 액체 연료 주입을 통한 소결광의 제조방법 및 이에 사용되는 소결기

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2013525071

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13768618

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 12014501845

Country of ref document: PH

ENP Entry into the national phase

Ref document number: 20147027925

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13768618

Country of ref document: EP

Kind code of ref document: A1