EP3563108B1 - Dispositif, comprenant un refroidisseur à colonne et un dispositif d'entrée, et procédé de refroidissement d'aggloméré chaud - Google Patents

Dispositif, comprenant un refroidisseur à colonne et un dispositif d'entrée, et procédé de refroidissement d'aggloméré chaud Download PDF

Info

Publication number
EP3563108B1
EP3563108B1 EP17889512.4A EP17889512A EP3563108B1 EP 3563108 B1 EP3563108 B1 EP 3563108B1 EP 17889512 A EP17889512 A EP 17889512A EP 3563108 B1 EP3563108 B1 EP 3563108B1
Authority
EP
European Patent Office
Prior art keywords
cooling
shaft
bunker
bulk material
rotary
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.)
Active
Application number
EP17889512.4A
Other languages
German (de)
English (en)
Other versions
EP3563108A1 (fr
EP3563108A4 (fr
Inventor
Franz Berner
Michaela Boeberl
Edmund Fehringer
Markus KASTNER
Johann Wurm
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.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria GmbH
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
Priority claimed from CN201621470172.6U external-priority patent/CN206479044U/zh
Priority claimed from CN201611246444.9A external-priority patent/CN106907931A/zh
Priority claimed from EP17177598.4A external-priority patent/EP3418661A1/fr
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to PL17889512T priority Critical patent/PL3563108T3/pl
Publication of EP3563108A1 publication Critical patent/EP3563108A1/fr
Publication of EP3563108A4 publication Critical patent/EP3563108A4/fr
Application granted granted Critical
Publication of EP3563108B1 publication Critical patent/EP3563108B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0286—Cooling in a vertical, e.g. annular, shaft
    • 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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling

Definitions

  • the present invention relates to a device for cooling bulk material consisting of particles of different particle sizes, the bulk material being hot sinter, and to introduction of bulk material consisting of particles of different particle sizes into a cooling shaft of a shaft cooler, wherein the bulk material is hot sinter having a temperature of at least 300 ° C.
  • Hot bulk material such as sintered iron ore from a sintering plant, usually needs to be cooled before it can be stored in a silo and / or further processed.
  • cooling devices For cooling of hot bulk material it is known to use cooling devices with a cooling shaft, which in operation is traversed by a cooling gas in countercurrent to the bulk material - so called shaft coolers. In such shaft coolers heat exchange between the hot bulk material and the cooling gas takes place in the cooling shaft.
  • the hot bulk material is usually introduced in the cooling shaft at an upper end and by gravity traverses the cooling shaft downwardly; at the lower end of the cooling shaft, the bulk material is removed in a cooled state.
  • the cooling gas is usually introduced at the lower end of the cooling shaft and discharged above in a heated state as so-called exhaust gas. When the cooling gas is air, it is called cooling air and exhaust air.
  • the bulk material should be distributed as homogeneously as possible in the cooling shaft with respect to particle sizes - that is, as free of segregation as possible in the case of a bulk material with different particle sizes.
  • the input of hot sinter as bulk material is done batch-wise or centrally. This segregates the hot sinter, which usually has a very large grain band with particle sizes up to 200 mm, and the cooling becomes inefficient.
  • GB2071139A a input device for bulk material is shown, but it is unclear whether its segregation performance would be applicable for hot sinter cooling in a shaft cooler.
  • the input device of GB2071139A differs from the claimed input device in that while there is a rotary device with reference number 3 at the very top of it, this rotary device having an eccentrically arranged discharge opening for the bulk material, its inlet opening for the bulk material is not passed through by the central axis of rotation. Material introduction is not done centrally.
  • segregation mechanism and as a consequence also cooling capacity and homogeneity is different from the input device as claimed.
  • a temperature of hot sinter from an sintering ore is approximately 400 ⁇ 750°C and of cold ore supplies a blast furnace; a ring cooling machine and a belt cooling machine can only recover 30% of exhaust gas heat approximately owing to their structural features; a vertical cooling shaft - i.e. a shaft cooler, respectively cooling shaft of a shaft cooler - can improve the heat recovery rate, so lots of scientific research institutes and enterprises use vertical cooling shafts to recover waste heat of sintering ores currently.
  • feeding modes for vertical cooling shafts comprise: skew bridge + umbrella-shaped material distribution (a patent number of 201511002240.6 , Multi-angle Multi-surface Multi-layer 360-degree Air-supplying Sinter Ore Cooling Tower); chain scraper conveyor + rotary material distribution (a patent number of 201320185479.1 , Heat Exchange Device for Sintering Ore Furnace Type Cooling); a patent number of 201520756682.9 , Sensible Heat Recovery Device for Agglomerate; direct connection with a discharge end of a sintering machine + clock-type/umbrella-shaped material distribution (a patent number of 201310127744.5 , Sintering Furnace Type Cooling Device); a patent number of 93117175.X , Vertical Agglomerate Cooling Machine; a patent number of 201310672967.X , Vertical Cooling and Waste Heat Recovery Furnace for Agglomerate; skew bridge feeding
  • common discharge modes of vertical cooling shafts comprise: star discharging machine (a patent number of 201220491407.5 , High-efficient Heat Recovery Type Sinter Mine Cooling System); a patent number of 201610150596.2 , System Used for Sinter Ore Cooling and Sensible Heat Efficient Recycling; a patent number of 200910074513.6 , Vertical Sinter Cooler Capable of Efficiently Recovering Sensible Heat of Agglomerate; electric vibrating feeder (a patent number of 93117175.X , Vertical Agglomerate Cooling Machine); electric vibrating quantified discharging machine + rotary discharge valve (a patent number of 201320185290.2 , Discharging Device of Sinter Cooling Furnace), (a patent number of 201520756682.9 , Sensible Heat Recovery Device for Agglomerate).
  • star discharging machine a patent number of 201220491407.5 , High-efficient Heat Recovery Type Sinter Mine Cooling System
  • 201610150596.2 System Used for Sinter Ore Cooling and Sensible Heat Efficient Recycling
  • the sintering ore entering the vertical cooling shaft has requirements on the particle size which is not too small; star/rotary discharging equipment has good airtightness, but material extrusion may cause granular materials to be clipped into equipment clearances, which influences normal operation; the electric vibrating feeder doesn't have material crushing conditions, but a suitable height of the sealing material column shall be considered.
  • the heat recovery rate of vertical cooling shafts is related to solid-gas heat exchange conditions, and material distribution and ventilation modes are critical.
  • material distribution modes for vertical cooling shafts comprise: rotary material distribution (a patent number of 201520756682.9 , Sensible Heat Recovery Device for Agglomerate; a patent number of 201310127797.7 , Rotary Feeding Device of Sinter Cooling Furnace); vertical screw-type feeding machine and clock-type material distribution (a patent number of 201320185480.4 , Suspension Type Distributing Device for Sintering Ore Cooling Furnace; a patent number of 93117175.X , Vertical Agglomerate Cooling Machine; a patent number of 201511002240.6 , Multi-angle Multi-surface Multi-layer 360-degree Air-supplying Sinter Ore Cooling Tower; a patent number of 201320814396.4 , Feeding Device for Vertical Cooling and Waste Heat Recovering Furnace for Sintering Ore), etc.
  • Ventilation modes comprise: arrangement of multiple wind chambers for surrounding blowing-in (a patent number of 201310128026.X , Sintered Ore Cooling Furnace); central blowing-in (a patent number of 201320814379.0 , Cold Air Supplying Device for Vertical Cooling and Waste Heat Recovering Furnace for Sintering Ore), combination of central (multilayer umbrella-type) and surrounding (air ring) blowing-in (a patent number of 201520756682.9, Sensible Heat Recovery Device for Agglomerate); louver ventilation grating (a patent number of 201511002240.6 , Multi-angle Multi-surface Multi-layer 360-degree Air-supplying Sinter Ore Cooling Tower); circumferential arrangement of multiple draught fans (a patent number of 200910074513.6 , Vertical Sinter Cooler Capable of Efficiently Recovering Sensible Heat of Agglomerate), (a patent number of 93117175.X , Vertical Agglomerate Cooling Machine), etc.
  • the existing material distribution equipment distributes large particles on the edge; by changing the material stocking angle to improve the distribution conditions, uniform distribution of materials on the cross section of the shaft can't be achieved.
  • the ventilation mode uses the combination of surrounding and central blowing-in, which is suitable for vertical shafts with large-size sections and can guarantee uniform and sufficient contact between cold air and the materials.
  • existing vertical cooling shafts generally have problems such as poor airtightness and uneven distribution of materials, etc., which causes poor site environment, high discharging temperature and low temperature of recovered exhaust gas, and directly influences the operation of discharge conveying equipment as well as the heat recovery rate and the heat value; consequently, the created economic benefits are not good and the equipment maintenance fees are high.
  • the container is a cooling shaft of a shaft cooler.
  • the shaft cooler has at least one cooling shaft.
  • the shaft cooler respectively its cooling shaft usually have a vertical longitudinal axis.
  • the bulk material is hot, that is, has a temperature of at least 300 ° C, preferably at least 400 ° C, it is hot sinter.
  • the temperature of the bulk material is lowered in the shaft cooler by heat exchange in countercurrent with a cooling gas, the bulk material being hot when introduced into the shaft cooler.
  • sinter may have a temperature in the range of 400 - 700 ° C, or even up to 750°C, when introduced.
  • the hot sinter bulk material consists of particles of different particle sizes; it can, for example in sintering, be a very large grain size spectrum with particle sizes up to 200 mm.
  • a bunker is to be understood a large container for receiving bulk goods, in the case of the present application for receiving hot sinter bulk material.
  • the rotary bunker is rotatable about a central axis of rotation, which usually in case of installation of the input device at a container - such at a cooling shaft of a shaft cooler - is perpendicular.
  • the rotary bunker is rotated about this axis of rotation.
  • the axis of rotation passes through the inlet opening of the rotary bunker for the hot sinter bulk material.
  • the inlet opening of the rotary bunker for the hot sinter bulk material is located centrally, i.e. in the middle,- in this case the central axis of rotation passes through this centrally located inlet opening.
  • the rotary bunker has an eccentrically arranged discharge opening.
  • the eccentric discharge opening of the rotary bunker opens into a stationary supply bunker, which is positioned adjacent to the rotary bunker. To use gravity to move the hot sinter bulk material, it is preferable to align the input device with the rotary bunker being arranged above the supply bunker.
  • the rotary bunker When installing the input device at a container, for example, at the cooling shaft of a shaft cooler, the rotary bunker is positioned above the supply bunker, so that the hot sinter bulk material progresses from the rotary bunker into the supply bunker following gravity.
  • the central axis of rotation of the rotary bunker does not pass through the eccentrically arranged discharge opening.
  • the eccentric discharge opening of the rotary bunker can be, for example, an eccentrically arranged hole in the bottom of the rotary bunker.
  • the supply bunker has its name because it supplies the hot sinter bulk material for subsequent entry into the container, such as a cooling shaft of a shaft cooler, through the drainpipes.
  • the supply bunker is stationary, unlike the rotary bunker it is not moving during operation of the input device.
  • drainpipes originate, at least three.
  • the drainpipes are tubes through which the hot sinter bulk material leaves the supply bunker following gravity, it runs out of it.
  • the end of the drainpipes connected to the supply bunker may be called the supply end, the other end of the drainpipes may be called the shaft end.
  • the cross section of the drainpipe becomes larger with increasing distance from the supply bunker, so they expand with increasing distance from the supply bunker. This reduces the risk of clogging.
  • conical tubes are connected as drainpipes with the narrower end, the supply end, with the supply bunker.
  • the hot sinter bulk material runs into the drainpipe provided at the corresponding point on the bottom of the supply bunker.
  • the drainpipes are arranged at the bottom of the supply bunker such that in the case of clogging of a drainpipe, the hot sinter bulk material in the supply bunker above that clogged drainpipe can at least largely run through another drainpipe.
  • the input device is operated in conjunction with a shaft cooler, the drainpipes extend into the cooling shaft of the shaft cooler with their lower, potentially wider, end, and during operation, material leaves this, potentially wider, end of the drainpipe - for example potentially conical tubes - into the cooling shaft of the shaft cooler.
  • the hot sinter bulk material will run out of the supply bunker through the drainpipes into the cooling shaft following gravity.
  • the such formed material bed of hot sinter bulk material is perfused by cooling gas - preferably cooling air - in countercurrent.
  • the rotary bunker Since during operation of the input device the rotary bunker is rotated about the central axis of rotation, while through the, preferably centrally located, inlet opening hot sinter bulk material is introduced into it, segregation phenomena of the hot sinter bulk material occurring during the transition from the transport device into the rotary bunker are mitigated.
  • particles thrown off a conveyor belt will fly to different extents depending on the size, i.e. they will segregate - by rotating the rotary bunker, afterwards the particle size distribution in the rotary bunker will be equalized.
  • the drainpipes are filled from the supply bunker with hot sinter bulk material of approximately the same particle size distribution when the hot sinter bulk material from the supply bunker runs into the drainpipes - which ultimately minimizes inhomogeneous particle size distribution in the container, such as a cooling shaft of a shaft cooler, especially in the circumferential direction.
  • the drainage of the hot sinter bulk material is favored by potentially increasing cross-sectional area of the drainpipes.
  • hot sinter bulk material cones are formed at the lower end of the discharge tubes; compared to the use of a single drainpipe - for example, a central input of hot sinter bulk material in the container, for example, cooling shaft - the cones are less high in the presence of multiple drainpipes.
  • the cones are less high in the presence of multiple drainpipes.
  • segregation in the radial direction around the respective hot sinter bulk material cones decreases in comparison to higher hot sinter bulk material cones.
  • At least three drainpipes should be present for a usable effect compared to a single drainpipe.
  • the inventive features of the input device in operation synergistically lead to the following effect: even in case of supply of segregated hot sinter bulk material to the inlet opening of the input device - for example, on a sinter-supplying chevron conveyor segregation effects take place already - in the container - for example, a cooling shaft of an input device associated shaft cooler - both radially as well as circumferentially substantially homogeneous, and with respect to the longitudinal axis of the container - for example, cooling shaft of a shaft cooler - rotationally symmetric, particle size distribution of the hot sinter bulk material is present. Segregation effects are equalized over the entire cross section of the bed of hot sinter bulk material formed in the container, for example cooling shaft.
  • the object of the present application is a device for cooling bulk material consisting of particles of different particle sizes, the bulk material being hot sinter having a temperature of at least 300°C, comprising a shaft cooler with cooling shaft, and an input device for the input of bulk material in a shaft cooler, wherein the input device comprises:
  • cooling shaft hot sinter bulk material is cooled by cooling gas passed through in countercurrent to the bulk material.
  • the rotary bunker and the supply bunker are outside of the cooling shaft and are therefore not exposed to the heated cooling gas present - especially at the upper end - in the cooling shaft.
  • Heat is supplied to the rotary bunker and the supply bunker by the hot sinter bulk material, but they are also cooled by ambient air.
  • the stationary components drainpipes open with their lower end - the shaft end - into the cooling shaft; from these shaft ends the hot sinter bulk material pours into the cooling shaft.
  • the inventive device for cooling hot sinter bulk material with the input device according to the invention are preferably operated continuously, that is, hot sinter bulk material is continuously introduced.
  • the cooling shaft is preferably designed at least partially axially symmetrical. It preferably comprises a hollow cylindrical shaft section. Whereby expediently the cylinder axis of the hollow cylindrical shaft section is vertically aligned.
  • the cooling shaft is an air-cooled heat exchanger.
  • the device for cooling hot sinter bulk material comprises at least one fan, in particular a blower, for injecting cooling gas, for example cooling air, into the cooling shaft.
  • the device for cooling hot sinter bulk material may have at least one fan for sucking cooling air out of the cooling shaft at its upper end.
  • the cold gas respectively cold air blown into the cooling shaft respectively into the hot sinter bulk material bed within the cooling shaft has to be distributed as evenly as possible.
  • the cooling air exits from a central air outlet of an air duct - also called supplying line - and an annular air outlet of an air duct - also called supplying line - provided at the bottom of the cooling shaft, to guarantee distribution uniformity of cold air within the vertical cooling shaft.
  • Cooling gas supply lines are provided circumferentially and centrally in the cooling shaft with annular and central air outlets. Compared to only annular or only central air outlets the cooling air is distributed more evenly.
  • Cooled hot sinter bulk material is discharged to a belt conveyor by multiple discharging chutes uniformly distributed at the bottom of the shaft, according to one variant with an electric vibrating feeder, Preferably the outlet of the discharging chutes on the vibrating feeder is provided with a dust cover.
  • a driving motor device for the rotary bunker is provided and a gear ring at the top edge of the rotary bunker respectively the rotary bunker body.
  • Said driving motor device may comprise one, two or more motors symmetrically arranged on the top edge of the rotary bunker respectively the rotary bunker body.
  • the gear ring rotates and drives the rotary bunker to rotation.
  • the motor or motors are arranged outside the shaft, in an area which is not subject to intense heat. Due to this arrangement, risk of heat related failure is low.
  • driving devices of said rotary distributing device use variable frequency control, to guarantee the stability of the charge level within the vertical cooling shaft of the shaft cooler as well as cooling sufficiency and uniformity of the hot sintering ore
  • the inner wall of the cooling shaft of the shaft cooler is provided with a lining above the annular air outlet.
  • That lining comprises an inner working layer and an outer insulating layer; the inner working layer is built by refractory bricks and the outer insulating layer is formed by refractory spraying materials; the lining is supported by a refractory support frame.
  • Another object of the present invention is
  • the central axis of rotation is preferably vertical.
  • the present application text shows a process method and a system using a vertical cooling shaft to recover waste heat of a sintering ore, wherein the use of a novel vertical cooling shaft - i.e. a shaft cooler, respectively cooling shaft of a shaft cooler - to cool the sintering ore can improve the waste heat recovery rate of the sintering ore and improve the production environment to the utmost extent;
  • a process method using a vertical cooling shaft - i.e. a shaft cooler, respectively cooling shaft of a shaft cooler - to recover waste heat of a sintering ore - also shortly called sinter - comprising the following steps:
  • Driving devices of said rotary distributing device, air blower, electric vibrating feeder 1 and electric vibrating feeder 2 use variable frequency control, to guarantee the stability of the charge level within the vertical cooling shaft -as well as cooling sufficiency and uniformity of the hot sintering ore.
  • This application describes a process system using a vertical cooling shaft - i.e.
  • a shaft cooler respectively cooling shaft of a shaft cooler - to recover waste heat of a sintering ore, comprising a vertical cooling shaft and a gravity dust collector which are successively connected according to the process route, wherein a receiving chute is provided above a hot sintering ore inlet on the top of said vertical cooling shaft; a single-roll crusher behind a sintering machine is connected with the receiving chute via a chute, an electric vibrating feeder 1 and a chain bucket conveyor or a chevron conveyor; a distributor is connected at the bottom of the receiving chute via a rotary distributing device; the rotary distributing device comprises a distributing device body, a rotary distributing trough and a driving motor device; the rotary distributing trough may be obliquely provided within the distributing device body; the top of the rotary distributing trough is located on the top edge of the distributing device body and is connected with the driving motor device for driving; the bottom of the rotary distributing trough is located in the middle above the distributor
  • Bodies of said chute, receiving chute, rotary distributing trough, distributor and discharging chute are made of boiler steel plates or heat-resistance stainless steel; linings are provided or not provided as needed and are made of high abrasion manganese alloy steel plates or refractory materials.
  • the inner wall of said vertical cooling shaft above the annular air duct outlet is provided with a lining, wherein the lining comprises an inner working layer and an outer insulating layer; the inner working layer is built by refractory bricks and the outer insulating layer is formed by refractory spraying materials; the lining is supported by a refractory support frame.
  • Said chain bucket conveyor or chevron conveyor is provided with a sealed heat preservation cover.
  • Said driving motor device comprises one, two or more motors symmetrically arranged on the top edge of the distributing device body; a gear ring is provided on the top edge of the distributing device body; driven by the motor or motors, the gear ring rotates and is meshed with a gear wheel arranged on the top of the rotary distributing trough, to drive the rotary distributing trough to move along the top edge of the distributing device body and realize the rotation of the rotary distributing trough around the central axis of the vertical cooling shaft.
  • the number of said blanking chutes and discharging chutes for example is six, respectively.
  • Figure 1 shows a longitudinal section of an input device 1 for introduction of hot sinter bulk material 2 into a cooling shaft 3 of a shaft cooler 4.
  • the input device 1 is part of a device for cooling 5 of bulk material.
  • the input device 1 is arranged at the upper end of the cooling shaft 3.
  • Hot sinter bulk material 2 in this case hot sinter with different particle sizes, is supplied via a transport device - in this case a chevron conveyor 6, but it could also be any other type of transport device suitable for transporting hot sinter - and fed into the rotary bunker 8 through an inlet opening 7 located centrally in the middle.
  • the rotary bunker 8 is rotatable about a vertical, dashed central axis of rotation 9 - indicated by two curved arrows.
  • the central axis of rotation coincides with the longitudinal axis of the cooling shaft 3 respectively the shaft cooler 4, and passes through the inlet opening 7.
  • the hot sinter bulk material 2 pours into the stationary storage bunker 11.
  • a contour of the material cushion of bulk material existing in use is indicated; sloping towards the discharge opening 10.
  • three stationary drainpipes 12a, 12b, 12c originate. These are conical tubes whose wider end - the shaft end - opens into the cooling shaft 3. At their narrower end - the supply end - they are connected to the supply bunker 11.
  • the shaft cooler 4 comprises, in addition to the cooling shaft 3, a blower 13 for blowing in cooling air, supply lines 14 for cooling air, discharge lines 15 for heated cooling air.
  • the cooling air - represented by a transparent block arrow - is introduced below into the cooling shaft 3, flows through the material bed 16 of bulk material in the cooling shaft in countercurrent, and is discharged at the upper end of the cooling shaft 3 as heated cooling air - represented by a filled block arrow.
  • Rotary bunker 8 and supply bunker 11 are arranged outside the cooling shaft 3.
  • the material bed 16 builds up in the cooling shaft 3, because the hot sinter bulk material 2 pours from the stationary supply bunker 11 through the drainpipes 12a, 12b, 12c into the cooling shaft 3.
  • the contour of the material bed 16 is indicated in the cooling shaft 3.
  • the hot sinter bulk material 2 passes through the cooling shaft 3 in the material bed 16 from top to bottom following gravity.
  • the cooled bulk material is discharged.
  • FIG. 2 shows enlarged in perspective sectional view the combination of rotary bunker 8, supply bunker 11 and drainpipes 12a, 12b, 12c in an input device 1 according to the invention from FIG. 1 .
  • the rotary bunker 8 is rotatable about the vertical central axis of rotation 9, indicated by a curved arrow. Its inlet opening 7 is centrally located in the middle, its discharge opening 10 is arranged eccentrically. The central axis of rotation 9 passes through the inlet opening 7.
  • the stationary supply bunker 11 is arranged below the rotary bunker 8. From the supply bunker 11, the three stationary drainpipes 12a, 12b, 12c originate.
  • the process method using a vertical cooling shaft to recover waste heat of a sintering ore in the present invention comprises the following steps:
  • Driving devices of said rotary distributing device 23, air blower, electric vibrating feeder 1 21 and electric vibrating feeder 2 32 use variable frequency control, to guarantee the stability of the charge level within the vertical cooling shaft 22 as well as cooling sufficiency and uniformity of the hot sintering ore.
  • a process system using a vertical cooling shaft to recover waste heat of a sintering ore for realizing said process method comprising a vertical cooling shaft 22, a gravity dust collector 33, which are successively connected according to the process route, wherein a receiving chute 26 is provided above a hot sintering ore inlet on the top of said vertical cooling shaft 22; a single-roll crusher 19 behind a sintering machine 17 is connected with the receiving chute 26 via a chute 18, an electric vibrating feeder 1 21 and a chain bucket conveyor 20; as shown in FIG.
  • a distributor 24 is connected at the bottom of the receiving chute 26 via a rotary distributing device 23;
  • the rotary distributing device 23 comprises a distributing device body 35, a rotary distributing trough 36 and a driving motor device 37;
  • the rotary distributing trough 36 is obliquely provided within the distributing device body 35;
  • the top of the rotary distributing trough 36 is located on the top edge of the distributing device body 35 and is connected with the driving motor device 37 for driving;
  • the bottom of the rotary distributing trough 36 is located in the middle above the distributor 24; driven by the driving motor device 37, the rotary distributing trough 36 rotates around the central axis of the vertical cooling shaft 22;
  • the distributor 24 comprises a barrel 38 at the upper part and multiple blanking chutes 25 uniformly distributed along the circumference at the lower part ;
  • the blanking chute 25 is a conical structure expanded downwards and its discharge end is provided at the upper space of the vertical cooling shaft 22;
  • An air blower 27 pumps cooling air into the bulk material bed.
  • An exhaust gas outlet on the top of the vertical cooling shaft 22 is connected with the gravity dust collector 33; a high-temperature exhaust gas pipe behind the gravity dust collector 33 is also present. Dust outlets of said gravity dust collector 33 are connected with the chain scraper conveyor 34.
  • Bodies of said chute 18, receiving chute 26, rotary distributing trough 36, distributor 24 and discharging chute 31 are made of boiler steel plates or heat-resistance stainless steel; linings are provided or not provided as needed and are made of high abrasion manganese alloy steel plates or refractory materials.
  • the inner wall of said vertical cooling shaft 22 above the annular air duct outlet 29 is provided with a lining, wherein the lining comprises an inner working layer and an outer insulating layer; the inner working layer is built by refractory bricks 40 and the outer insulating layer is formed by refractory spraying materials; the lining is supported by a refractory support frame.
  • Said chain bucket conveyor 20 is provided with a sealed heat preservation cover.
  • Said driving motor device 37 comprises two motors symmetrically arranged on the top edge of the distributing device body 35; a gear ring is provided on the top edge of the distributing device body 35; driven by the motor, the gear ring rotates and is meshed with a gear wheel arranged on the top of the rotary distributing trough 36, to drive the rotary distributing trough 36 to move along the top edge of the distributing device body 35 and realize the rotation of the rotary distributing trough 36 around the central axis of the vertical cooling shaft 22.
  • the number of said blanking chutes 25 and discharging chutes 31 is six, respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Blast Furnaces (AREA)

Claims (8)

  1. Dispositif pour refroidir un produit en vrac fait de particules de différentes tailles de particule, le produit en vrac (2) étant un frittage à chaud ayant une température d'au moins 300°C, comprenant un dispositif de refroidissement d'arbre (4) avec un arbre de refroidissement (3), et un dispositif d'entrée (1) pour l'entrée du produit en vrac (2) dans un dispositif de refroidissement d'arbre (4),
    dans lequel le dispositif d'entrée (1) comprend :
    - un réservoir rotatif (8) qui peut tourner autour d'un axe central de rotation (9), ayant une ouverture d'entrée (7) pour le produit en vrac (2) à travers laquelle l'axe central de rotation (9) passe, et ayant une ouverture de déversement (10) pour le produit en vrac (2), l'ouverture de déversement (10) étant agencé excentriquement ;
    - un réservoir d'alimentation (11), dans lequel l'ouverture de déversement (10) du réservoir rotatif (8) s'ouvre ;
    - au moins trois gouttières (12a, 12b, 12c) émanant du réservoir d'alimentation (11) ;
    dans lequel le réservoir d'alimentation (11) et les gouttières (12a, 12b, 12c) sont stationnaires ;
    et dans lequel le dispositif d'entrée (1) est agencé au niveau de l'extrémité supérieure de l'arbre de refroidissement (3) du dispositif de refroidissement d'arbre (4), dans lequel les gouttières (12a, 12b, 12c) s'ouvrent avec leurs extrémités inférieures dans l'arbre de refroidissement (3), et le réservoir rotatif (8) et le réservoir d'alimentation (11) sont agencés à l'extérieur de l'arbre de refroidissement (3).
  2. Dispositif pour refroidir selon la revendication 1, caractérisé en ce que le dispositif est configuré pour un produit en vrac (2) ayant une température d'au moins 400°C.
  3. Dispositif pour refroidir selon la revendication 1, caractérisé en ce que des lignes d'alimentation de gaz de refroidissement sont fournies circonférentiellement et centralement dans l'arbre de refroidissement (3) avec des sorties d'air annulaires et centrales (29, 28).
  4. Dispositif pour refroidir selon la revendication 1, caractérisé en ce que la coupe transversale de la gouttière (12a, 12b, 12c) s'agrandit selon une distance croissante depuis le réservoir d'alimentation (11).
  5. Dispositif pour refroidir selon la revendication 1, caractérisé en ce qu'un dispositif de moteur d'entraînement (37) pour le réservoir rotatif (8) est fourni et qu'une couronne d'engrenage est fournie au niveau du bord supérieur du réservoir rotatif (8) pour entraîner la rotation du réservoir rotatif (8).
  6. Dispositif pour refroidir selon la revendication 3, caractérisé en ce que la cloison interne de l'arbre de refroidissement (3) du dispositif de refroidissement d'arbre (4) est munie d'un revêtement au-dessus de la sortie d'air annulaire.
  7. Procédé pour l'introduction, préférablement continue, de produit en vrac (2) fait de particules de différentes tailles de particule dans un arbre de refroidissement (3) d'un dispositif de refroidissement d'arbre (4),
    dans lequel le produit en vrac (2) est un frittage à chaud ayant une température d'au moins 300°C, et
    dans lequel le produit en vrac est tout d'abord alimenté centralement dans un réservoir rotatif (8) tournant autour d'un axe central de rotation (9), puis se déversant excentriquement hors du réservoir rotatif (8) dans un réservoir d'alimentation (11) stationnaire, et ensuite se déversant du réservoir d'alimentation (11) stationnaire à travers des gouttières (12a, 12b, 12c) stationnaires dans l'arbre de refroidissement (3) du dispositif de refroidissement d'arbre (4).
  8. Procédé selon la revendication 7, caractérisé en ce que le produit en vrac (2) étant un frittage à chaud possède une température d'au moins 400°C.
EP17889512.4A 2016-12-29 2017-12-29 Dispositif, comprenant un refroidisseur à colonne et un dispositif d'entrée, et procédé de refroidissement d'aggloméré chaud Active EP3563108B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17889512T PL3563108T3 (pl) 2016-12-29 2017-12-29 Urządzenie zawierające chłodnicę szybową i urządzenie wejściowe, oraz sposób chłodzenia gorącego spieku

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201621470172.6U CN206479044U (zh) 2016-12-29 2016-12-29 用竖冷窑回收烧结矿余热拖动主抽风机的工艺系统
CN201611246444.9A CN106907931A (zh) 2016-12-29 2016-12-29 用竖冷窑回收烧结矿余热拖动主抽风机的工艺方法及系统
EP17177598.4A EP3418661A1 (fr) 2017-06-23 2017-06-23 Dispositif d'entrée pour produit en vrac
PCT/CN2017/119855 WO2018121733A1 (fr) 2016-12-29 2017-12-29 Refroidissement de matériau en vrac

Publications (3)

Publication Number Publication Date
EP3563108A1 EP3563108A1 (fr) 2019-11-06
EP3563108A4 EP3563108A4 (fr) 2020-07-08
EP3563108B1 true EP3563108B1 (fr) 2022-02-02

Family

ID=62710322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17889512.4A Active EP3563108B1 (fr) 2016-12-29 2017-12-29 Dispositif, comprenant un refroidisseur à colonne et un dispositif d'entrée, et procédé de refroidissement d'aggloméré chaud

Country Status (7)

Country Link
EP (1) EP3563108B1 (fr)
JP (1) JP6854899B2 (fr)
KR (1) KR102389265B1 (fr)
PL (1) PL3563108T3 (fr)
RU (1) RU2762953C2 (fr)
UA (1) UA125441C2 (fr)
WO (1) WO2018121733A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109269307B (zh) * 2017-11-03 2024-03-08 山东耀华能源投资管理有限公司 一种烧结矿全封闭竖式风冷却窑及其工作方法
CN110006201B (zh) * 2019-03-15 2024-06-04 辽宁科技大学 一种物料冷却装置
CN112747621B (zh) * 2021-01-04 2022-11-22 国家能源集团国源电力有限公司 一种散料冷却器
CN114705053B (zh) * 2022-02-24 2022-11-22 中信重工机械股份有限公司 一种烧结矿竖式冷却炉晃板排料冷却装置
CN114643018A (zh) * 2022-03-23 2022-06-21 北京明湖华胜超导新材料技术研究院有限公司 一种可撬动碳层间范德华力的化学力发生装置
CN114873297B (zh) * 2022-05-17 2023-12-15 陕西理工大学 一种垃圾堆肥分撒装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1491519A (en) * 1973-12-26 1977-11-09 Midrex Corp Apparatus for feeding dissimilarly sized particles into a shaft furnace
FR2485031A1 (fr) 1980-03-10 1981-12-24 Lubrizol Corp Compositions benzotriazole-olefine sulfuree et lubrifiants et concentres les contenant
BR8002400A (pt) * 1980-04-18 1981-12-01 Petroleo Brasileiro Sa Mecanismo para distribuicao granulometrica de particulas solidas
DE3125110C2 (de) * 1981-06-26 1985-06-13 Lothar Dipl.-Ing. 5000 Köln Teske Schüttgutbunker-Austragvorrichtung
JPS5911833U (ja) * 1982-07-14 1984-01-25 石川島播磨重工業株式会社 高温固体の分配装入装置
SU1112212A1 (ru) * 1982-12-08 1984-09-07 Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов,Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии Шахтный холодильник
US4623056A (en) * 1983-09-30 1986-11-18 The Dow Chemical Company Apparatus for distributing material flow
LU90072B1 (de) * 1997-05-30 1998-12-01 Wurth Paul Sa Chargiervorrichtung fuer einen Drehherdofen
WO2008152048A1 (fr) * 2007-06-13 2008-12-18 Shell Internationale Research Maatschappij B.V. Pompe pour matériaux en vrac et son utilisation
CN101576351A (zh) * 2009-06-23 2009-11-11 河北理工大学 一种可高效回收烧结矿显热的立式烧结矿冷却机
AT508648B1 (de) * 2009-08-26 2012-12-15 Siemens Vai Metals Tech Gmbh Aufgabeschurre für sintermaterial
AT510203B1 (de) * 2010-07-13 2012-05-15 Siemens Vai Metals Tech Gmbh Kühlvorrichtung für heisses schüttgut
CN103234361B (zh) 2013-04-15 2015-07-15 中信重工机械股份有限公司 一种烧结矿冷却炉
CN204495075U (zh) 2015-03-15 2015-07-22 韩建淮 具有导流功能的竖式冷却器
CN204630396U (zh) 2015-05-11 2015-09-09 中冶长天国际工程有限责任公司 一种冷却料仓及球团式环冷机
CN204630395U (zh) 2015-05-11 2015-09-09 中冶长天国际工程有限责任公司 一种风箱及球团式环冷机
CN206479044U (zh) * 2016-12-29 2017-09-08 鞍钢集团工程技术有限公司 用竖冷窑回收烧结矿余热拖动主抽风机的工艺系统
CN106907931A (zh) * 2016-12-29 2017-06-30 鞍钢集团工程技术有限公司 用竖冷窑回收烧结矿余热拖动主抽风机的工艺方法及系统

Also Published As

Publication number Publication date
EP3563108A1 (fr) 2019-11-06
JP6854899B2 (ja) 2021-04-07
UA125441C2 (uk) 2022-03-09
WO2018121733A1 (fr) 2018-07-05
JP2020507008A (ja) 2020-03-05
RU2019119849A3 (fr) 2021-07-05
EP3563108A4 (fr) 2020-07-08
RU2762953C2 (ru) 2021-12-24
PL3563108T3 (pl) 2022-05-23
RU2019119849A (ru) 2021-01-29
KR20190103163A (ko) 2019-09-04
KR102389265B1 (ko) 2022-04-20

Similar Documents

Publication Publication Date Title
EP3563108B1 (fr) Dispositif, comprenant un refroidisseur à colonne et un dispositif d'entrée, et procédé de refroidissement d'aggloméré chaud
CN107250078B (zh) 一种回收钢铁生产步骤中产生的白渣的装置
CN202853402U (zh) 一种高效热量回收型烧结矿冷却系统
CN106907931A (zh) 用竖冷窑回收烧结矿余热拖动主抽风机的工艺方法及系统
CN108955276B (zh) 具有旋转布料器的立式烧结矿冷却机及烧结矿冷却方法
JP2001348252A (ja) ステンレス鋼スラグの処理設備
CN110678711B (zh) 松散材料的冷却
JPH06211551A (ja) セメントクリンカ冷却装置
KR101618246B1 (ko) 고온 벌크 제품을 위한 냉각 장치
AU2011257264B2 (en) Method and device for manufacturing vitreous
CN110631378A (zh) 一种立式预热器
JP2009068062A (ja) 非鉄金属製錬所の操業方法
CN204569999U (zh) 一种链篦机-回转窑球团生产线的返料系统
CN204214300U (zh) 一种间歇式粮油物料的冷却器
CN108931140B (zh) 塔式烧结矿冷却机及烧结矿冷却方法
CN108692575B (zh) 有料位调节装置的立式烧结矿冷却机及烧结矿冷却方法
KR100530084B1 (ko) 스테인레스강 정련로의 슬래그 재활용 설비 및 방법
JP5326338B2 (ja) 竪型炉の操業方法及びこれに用いる竪型炉装入用コークスの粉化促進装置
CN111351340A (zh) 一种高温液体冷却装置
JP4654171B2 (ja) 銅製錬用溶剤のボールミル粉砕方法
JP5008942B2 (ja) 搬送装置またはセメント冷却装置の内部清掃用具およびこれらの内部清掃方法
CN104390487B (zh) 一种间歇式粮油物料的冷却器
CN213713080U (zh) 一种循环流化床垃圾炉在线补砂装置
CN210906057U (zh) 环保节能的增碳剂造粒系统
CN118189649A (zh) 高温固态物料高效冷却及余热回收系统

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190729

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20200605

RIC1 Information provided on ipc code assigned before grant

Ipc: F27D 15/02 20060101AFI20200601BHEP

Ipc: F27D 3/00 20060101ALI20200601BHEP

Ipc: F27B 1/24 20060101ALI20200601BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210209

RIC1 Information provided on ipc code assigned before grant

Ipc: F27D 15/02 20060101AFI20210409BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210906

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WURM, JOHANN

Inventor name: KASTNER, MARKUS

Inventor name: FEHRINGER, EDMUND

Inventor name: BOEBERL, MICHAELA

Inventor name: BERNER, FRANZ

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1466682

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602017053063

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: FI

Ref legal event code: FGE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220602

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220502

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220502

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602017053063

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20221103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221231

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221229

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231220

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20231220

Year of fee payment: 7

Ref country code: LU

Payment date: 20231220

Year of fee payment: 7

Ref country code: IT

Payment date: 20231228

Year of fee payment: 7

Ref country code: FR

Payment date: 20231222

Year of fee payment: 7

Ref country code: FI

Payment date: 20231221

Year of fee payment: 7

Ref country code: DE

Payment date: 20231214

Year of fee payment: 7

Ref country code: CZ

Payment date: 20231221

Year of fee payment: 7

Ref country code: AT

Payment date: 20231221

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20231221

Year of fee payment: 7

Ref country code: BE

Payment date: 20231220

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20171229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20231225

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220202