WO2022128377A1 - Device and method for taking gas samples from a blast furnace - Google Patents
Device and method for taking gas samples from a blast furnace Download PDFInfo
- Publication number
- WO2022128377A1 WO2022128377A1 PCT/EP2021/082837 EP2021082837W WO2022128377A1 WO 2022128377 A1 WO2022128377 A1 WO 2022128377A1 EP 2021082837 W EP2021082837 W EP 2021082837W WO 2022128377 A1 WO2022128377 A1 WO 2022128377A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- furnace chamber
- probe
- furnace
- gas samples
- temperature
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 21
- 239000000523 sample Substances 0.000 claims abstract description 58
- 238000003860 storage Methods 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims description 28
- 238000005259 measurement Methods 0.000 claims description 21
- 238000009826 distribution Methods 0.000 claims description 16
- 238000012876 topography Methods 0.000 claims description 15
- 238000000605 extraction Methods 0.000 claims description 11
- 238000009529 body temperature measurement Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 77
- 238000005070 sampling Methods 0.000 description 16
- 239000012530 fluid Substances 0.000 description 4
- 239000000571 coke Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
-
- 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
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/28—Arrangements of monitoring devices, of indicators, of alarm devices
-
- 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
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/26—Devices for withdrawing samples in the gaseous state with provision for intake from several spaces
-
- 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
- F27D19/00—Arrangements of controlling devices
- F27D2019/0006—Monitoring the characteristics (composition, quantities, temperature, pressure) of at least one of the gases of the kiln atmosphere and using it as a controlling value
- F27D2019/0012—Monitoring the composition of the atmosphere or of one of their components
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
- G01N2001/2235—Sampling from a closed space, e.g. food package, head space over a melt, e.g. furnace
Definitions
- the present invention relates to a device for taking gas samples from a blast furnace with a rod-shaped probe arranged in the furnace chamber of the blast furnace above the burden surface, which has a plurality of extraction openings for taking gas samples from the furnace chamber, which are equipped with storage devices for connection to an outside of the furnace chamber arranged analysis device for analyzing the gas samples taken are connected, the device having a feed device arranged outside of the furnace chamber, with which the probe can be moved into and out of the furnace chamber.
- the invention relates to a method for taking gas samples by means of such a device, the probe being moved radially from a ready position outside the furnace chamber to a sampling position inside the furnace chamber, gas samples then being taken through the sampling openings arranged inside the furnace chamber with storage of the gas samples take place in the storage devices, and then the gas samples stored in the storage devices are analyzed successively in the analysis device.
- the probe being moved radially from a ready position outside the furnace chamber to a sampling position inside the furnace chamber, gas samples then being taken through the sampling openings arranged inside the furnace chamber with storage of the gas samples take place in the storage devices, and then the gas samples stored in the storage devices are analyzed successively in the analysis device.
- Measurements of the temperatures of the gases rising from the reduction process which in the past were only possible at certain points using thermocouples, are now carried out using an acoustic measuring system offered by the applicant under the brand name TMT SOMA, which calculates a two-dimensional temperature distribution in a layer above the burden surface through the arrangement of the Measurement system defined measurement level delivers.
- the process that takes place in a blast furnace is essentially determined by the structure of the layering of coke and ore in the furnace vessel, which forms the blast furnace burden Additives are introduced into the furnace chamber.
- a charging device that can be rotated around the vertical axis of the blast furnace is regularly used, which is technically termed a "rotary chute" and which has a discharge ramp whose inclination relative to the vertical axis can be adjusted in order to enable layers that are defined as precisely as possible to achieve a reproducible blast furnace process.
- An essential parameter of the blast furnace process is given by the gas composition of the top gas rising from the burden, whereby it is known to take gas samples to measure the gas composition by means of a measuring lance permanently installed on the furnace wall inside the furnace chamber, which is arranged above the burden. men.
- the measuring probe is provided with a plurality of sampling openings, each of which is connected via a pipe to an analysis device arranged outside the furnace chamber, with the analyzes of the gas samples taken from the furnace chamber through different sampling openings being carried out independently of one another, each of the analysis devices assigned to individual removal openings.
- the known measuring lances are located in an arrangement below the rotary chute required for charging the furnace, so that a collision of the rotating rotary chute with the measuring lance permanently installed on the furnace wall can be avoided.
- the material introduced into the furnace chamber via the rotary chute often collides with the measuring lance subject to wear and tear from repeated collisions.
- the invention is based on the object of proposing a device for taking gas samples from a blast furnace which, on the one hand, enables collision-free operation and, on the other hand, requires comparatively little equipment to carry out the sample analysis.
- the device according to the invention has the features of claim 1 .
- the device according to the invention for taking gas samples from a blast furnace has a rod-shaped probe arranged in the furnace chamber of the blast furnace above the burden surface with a plurality of extraction openings for taking gas samples from the furnace chamber, the extraction openings having storage devices for connection to an analysis device arranged outside the furnace chamber for analyzing the gas samples taken, the device having a feed device which is arranged outside the furnace chamber and with which the probe can be moved into and out of the furnace chamber.
- the design of the device with a rod-shaped probe that can be moved into and out of the furnace chamber, which can be moved by means of a feed device arranged outside the furnace chamber, enables the probe to be used inside the furnace chamber in accordance with the charging matrix of the blast furnace, i.e. a only temporary arrangement of the probe within the furnace chamber during the charging pauses, so that a collision of the probe with material introduced into the furnace chamber during charging can be avoided.
- the assignment of storage devices to the respective sampling opening enables the individual gas samples to be temporarily stored independently of one another, so that an analysis of the respective gas sample does not have to be carried out immediately at the same time as the sampling by means of an analysis device assigned to the respective sampling opening, but by means of a single analysis device, the individual gas samples, each stored in a sample storage device, can be analyzed in a chronologically consecutive sequence. Only one analysis device is therefore sufficient to successively analyze all of the gas samples taken from the furnace space via the extraction openings.
- the probe is preferably arranged in a removal position radially inside the furnace chamber in such a way that the probe extends at least partially between the vertical axis and the periphery of the furnace chamber, so that the position of the extraction openings in relation to the vertical axis when the probe is arranged in a defined manner on the periphery of the Furnace space is defined solely by the longitudinal coordinate of the probe.
- the probe is arranged in a horizontal plane within the furnace chamber, so that the probe can be positioned within a horizontal measuring plane, which is caused by the arrangement of a further measuring device, i.e. in particular a device for temperature measurement with a plurality of acoustic Transmitter/receiver arrangements, or in a horizontal plane arranged at least closely adjacent and parallel to the measurement plane is possible.
- a further measuring device i.e. in particular a device for temperature measurement with a plurality of acoustic Transmitter/receiver arrangements
- measured variables determined in the measurement plane such as in particular the temperature, can be overlaid with values for the gas composition determined within the same plane or at least in close proximity to the measurement plane.
- the storage devices are preferably connected to the common analysis device via valve devices that can be actuated independently of one another, so that the chronological sequence of the respective analysis of the gas samples can be determined by the operator as desired, regardless of a simultaneous removal of the gas samples by means of the removal openings of the probe.
- both the measurement of the gas composition and the removal of the gas samples can take place at a defined measurement time, so that after a subsequent analysis of the Gas samples in the analysis device an assignment of each to a Position of the gas composition determined in each sampling opening and the temperature at the sampling location can take place.
- the device for temperature measurement has a plurality of acoustic transmitter/receiver arrangements which are arranged on the periphery of the furnace chamber in a common measurement plane, such that a temperature distribution within the measurement plane is determined.
- the values of the gas composition determined by means of the probe can be assigned to the temperature values in the areas associated with the positioning of the Removal openings in the removal of the gas samples are made matching positions.
- the device for taking gas samples and the device for temperature measurement is part of a device arrangement comprising a device for determining the topography of the burden surface in the blast furnace
- the temperature values determined by means of the temperature measurement and the values of the gas composition determined by means of the probe can be linked to the vertical distance of the measurement plane from the burden surface associated topography values of the burden surface, so that three different parameters of the blast furnace process, namely the temperature, the gas composition and the topography, can be determined at a substantially corresponding point in time of the process.
- the device for determining the topography of the burden surface comprises a radar device with an antenna device which is arranged in the area of a furnace cover, the antenna device being arranged on a rotation axis inclined at an angle of inclination a relative to the vertical axis of the blast furnace and by means of s a drive device can be rotated about the axis of rotation in such a way that a radar fan formed by the emitted radar radiation of the antenna device strikes the surface of the burden along a profile line and sweeps over the surface of the burden when the antenna device rotates, the topography of the entire surface of the burden can be determined with little operational effort.
- the probe is moved radially from a ready position outside the furnace chamber to a removal position inside the furnace chamber, gas samples are then removed through the extraction openings arranged inside the furnace chamber with storage of the gas samples in the storage devices, and then the gas samples stored in the storage devices are successively analyzed in the analysis device.
- the gas samples are preferably taken at the same time, so that despite the subsequent analysis of the respective gas samples taken from the furnace chamber through the different sampling openings, the composition of all the gas samples can be determined at a consistent process time.
- a functional linear dependency between the temperature and the gas composition along the probe is determined by means of a processor device, and starting from in Defined positions in the measurement plane determined temperature values of the temperature distribution according to the functional dependency between the temperature and the gas composition, the gas composition is determined at the defined positions by means of a processor device in such a way that one of the temperature distribution superimposed device distribution of the gas composition within the measurement plane is determined.
- the direct assignment of gas temperature and gas composition creates the prerequisite for a corresponding control of the blast furnace process, with irregularities in the blast furnace process in particular being recognizable at an early stage and controlled intervention being possible before damage to the blast furnace can occur.
- topography values of the burden surface determined by means of a processor device are superimposed on the temperature distribution superimposed on the distribution of the gas composition by means of the device for determining the topography of the burden surface, which is additional to the device for temperature measurement, so that by knowing a corresponding other process parameters, an even more targeted control of the blast furnace process is possible, such that, for example, in the case of a local lowering of the burden surface in an area of increased temperature and a gas composition with a high calorific value, a correspondingly positioned charging with ore takes place in order to prevent overheating in the area of the lowering of the burden surface to prevent.
- FIG. 1 shows a sectional representation of a shaft furnace with a device for taking gas samples arranged on the upper part of a furnace vessel on a furnace wall;
- Fig. 2 is a schematic representation of a connected to an analysis device probe in Fig. 1 at the top of Shaft furnace arranged device for taking gas samples;
- FIG. 3 shows a partially sectioned isometric representation of the furnace vessel shown in FIG. 1 with a device arrangement comprising, in addition to the device for taking gas samples, a device for temperature measurement within the furnace chamber and a device for determining the topography of the burden surface.
- Fig. 1 shows a shaft furnace 10, which essentially consists of a furnace base 11, a furnace top 12 and a furnace cover 13, in which a charging device designed here as a rotary chute 14 is integrated, which can be pivoted about a vertical axis 15 of the shaft furnace 10 is, so that a discharge ramp 17 adjoining a funnel opening 16 of the rotary chute 14, which can be tilted in relation to the vertical axis 15, can be positioned in a defined manner.
- a shaft furnace 10 which essentially consists of a furnace base 11, a furnace top 12 and a furnace cover 13, in which a charging device designed here as a rotary chute 14 is integrated, which can be pivoted about a vertical axis 15 of the shaft furnace 10 is, so that a discharge ramp 17 adjoining a funnel opening 16 of the rotary chute 14, which can be tilted in relation to the vertical axis 15, can be positioned in a defined manner.
- the rotary chute 14 is used for alternating charging of the blast furnace 10 with layers of coke and burden, not shown in detail in FIG. To do this, it is necessary to determine the topography of a burden surface 18 formed in the furnace chamber as precisely as possible.
- a radar device 20 is arranged in the region of the furnace cover 13 above the burden surface 18 in a furnace wall 19 of the furnace upper part 12 , with a housing 21 of the radar device 20 penetrating the furnace wall 19 .
- Inside the housing 21 there is an antenna device 22 which is arranged on an antenna carrier 23 which can be rotated about an axis of rotation 24 and can be driven via a carrier shaft 25 with a drive device not shown in detail here.
- the axis of rotation 24 is inclined at an angle a to the vertical axis 15 and intersects the vertical axis 15 approximately at an intersection S with the burden surface 18.
- the antenna device 22 is designed in such a way that a main axis direction H of the radar radiation essentially coincides with the axis of rotation 24 and coincides Beam opening angle ß of the antenna device 22 is large enough to form a radar fan 49, which allows the charging of the charge surface 18 along a profile line P of the shaft furnace 10.
- the radar fan 28 is formed with marginal rays 29, 30.
- the antenna device 22 rotates through 360° about the axis of rotation 24, the radar fan 28 sweeps over the entire burden surface 18.
- the rotation of the radar device 20 about the axis of rotation 24 can take place independently of the position of the rotary chute 14 without the risk of a collision with the rotary chute 14.
- the shaft furnace 10 is provided with a temperature measuring device 26 in its furnace upper part 12 in addition to the radar device 20, which has a plurality of acoustic transmitter/receiver arrangements 28 in a horizontal plane 27 , which are arranged on the periphery 29 of the furnace chamber formed by the furnace wall 19, and which serve to determine a temperature distribution within a measurement plane 30 formed in the horizontal plane 27.
- the transmitter/receiver arrangements 28 have a loudspeaker device (not shown here) as a transmitter, with which an acoustic signal is emitted, which is received by a receiver device designed as a microphone device.
- 3 shows the example of a transmitter/receiver arrangement 28 signal paths 31 between a transmitter of the transmitter/receiver arrangement 28 and the receivers of opposite transmitter/receiver arrangements 28, the signal paths defining the measurement plane 30 - kidneys Since the signal propagation times of the acoustic signals along the signal paths 31 depend on the temperature of the top gas above the burden surface 18, which is formed during the reduction of the ore arranged in the furnace base 11, an average temperature of the top gas along a Determine signal path 3 1.
- a superimposition of all signal paths 3 1 formed between the transmitter/receiver arrangements 28 makes it possible, on the basis of suitable algorithms, to determine a given temperature distribution in the measurement plane 30, so that hotspots can be identified, for example, and in particular taking into account the topography of the burden surface determined by the radar device 20 18 targeted measures for process control of the blast furnace process can be initiated.
- Such a measure can then consist, for example, in the event that such a hotspot is assigned to an area of the burden surface 18 that has a greatly reduced fill level compared to the surrounding burden surface 18, targeted charging with a disproportionate amount of ore in order to temporarily reduce the reducing temperature-increasing effect of the coke and thus lower the temperature at the point in question on the burden surface.
- the upper part 12 of the shaft furnace 10 is provided in the present case with a gas sampling device 32 in addition to the radar device 20 and the temperature measuring device 26, which has a rod-shaped probe 33 with a plurality of of sampling openings 34 for taking gas samples from the furnace chamber.
- the gas sampling device 32 has a frame device 36 arranged outside the furnace space, here on a blast furnace platform 35, which includes a feed device 37 by means of which the probe 33 can be moved into and out of the furnace space.
- the furnace wall 19 is fitted with a stuffing box packing provided blast furnace socket 38 is provided, which also has a shut-off valve 48 to allow a sealing of the furnace space with a probe 33 arranged completely outside the furnace space.
- Fig. 1 shows, in its removal position shown in Fig. 1, the probe is arranged radially inside the furnace chamber, with the probe 33 extending into a horizontal plane 39 adjacent to the measuring plane 30 of the temperature measuring device 26, so that measurements with the temperature measuring device 26 may also be possible can then take place when the probe 33 is in the removal position shown, without the probe 33 being able to impede the signal transmission along the signal paths 31 of the temperature measuring device 26.
- the probe 33 is arranged within the furnace chamber in such a way that the removal openings 34 of the probe 33, which in the present case are arranged equidistantly over the length of the probe 33, cover the burden surface 18 along the radius r of a circular area formed by the burden surface 18.
- the distal removal opening 34 is located on the vertical axis 15 of the shaft furnace 10, which defines the center M of the burden surface 18, and the proximal removal opening 34 is in the immediate vicinity of the furnace wall 19, so that the removal openings 34 are defined surface points Px to P 6 are assigned to the burden surface 18 .
- FIG. 2 shows a schematic representation of the probe 33 with the removal openings 34 formed here on the underside of a probe body 40, which are each connected via a fluid line 41 to a storage device 42 arranged outside of the probe body 40.
- the storage devices 42 in turn are each connected to an analysis device 44 via a fluid line 43, with a valve device 45 being provided in each of the fluid lines 43 in such a way that the menen and stored in the storage devices gas samples for analysis of the gas composition of the individual gas samples can be supplied to the analysis device 44 independently of one another.
- the probe 33 shown in FIG. 2 enables gas samples to be taken at the same time, corresponding in number to the number of sampling openings 34, and these can be stored in the storage devices 42 independently of one another.
- the storage devices 42 are each preceded by a further valve device 46 .
- the valve device 46 is provided with an auxiliary connection 47 for a purge gas supply, in order to enable the fluid lines 41 to be purged while the probe 33 is arranged outside the furnace chamber, so that when the probe 33 takes subsequent samples, the gas samples are not influenced by residues from previous gas samples can be excluded.
- the defined arrangement of the probe 33 or the extraction openings 34 of the probe 33 in the measuring plane 30 or closely adjacent to the measuring plane 30, in which the temperature distribution is determined by means of the temperature measuring device 26, enables a defined assignment between the gas samples taken from the top gas in the positions of the sampling openings 34 and the temperatures of the top gas determined in the area of the sampling openings 34, so that along the course of the probe 33, i.e. here along the radius r of the measuring plane 30, the dependence between the temperature and the Gas composition can be represented as a linear function.
- the dependency between temperature and gas composition which is thus known, it is now possible, as a function of the furnace gas temperature determined by means of the temperature measuring device 26 at any location in the measurement plane 30, the gas composition of the furnace gas can be determined.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023535008A JP2023552836A (en) | 2020-12-15 | 2021-11-24 | Apparatus and method for collecting gas samples from blast furnaces |
EP21819443.9A EP4263877A1 (en) | 2020-12-15 | 2021-11-24 | Device and method for taking gas samples from a blast furnace |
KR1020237022171A KR20230118884A (en) | 2020-12-15 | 2021-11-24 | Apparatus and method for taking gas samples from a blast furnace |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020133545.8 | 2020-12-15 | ||
DE102020133545.8A DE102020133545A1 (en) | 2020-12-15 | 2020-12-15 | Apparatus and method for taking gas samples from a blast furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022128377A1 true WO2022128377A1 (en) | 2022-06-23 |
Family
ID=78821072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/082837 WO2022128377A1 (en) | 2020-12-15 | 2021-11-24 | Device and method for taking gas samples from a blast furnace |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4263877A1 (en) |
JP (1) | JP2023552836A (en) |
KR (1) | KR20230118884A (en) |
DE (1) | DE102020133545A1 (en) |
WO (1) | WO2022128377A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1583187A1 (en) * | 1967-11-18 | 1970-07-23 | Krupp Gmbh | Monitoring device for blast furnaces and methods for operating the same |
DE2709548A1 (en) * | 1976-03-17 | 1977-09-22 | Wurth Anciens Ets Paul | METHOD AND DEVICE FOR DETERMINING THE SURFACE PROFILE OF MOELLER SHOCKING IN A SHAFT FURNACE |
DE3015006A1 (en) * | 1979-04-18 | 1980-10-30 | Aga Ab | METHOD AND ARRANGEMENT FOR REGISTERING THE TOPOGRAPHY FOR THE BATCH IN A BLAST FURNACE |
JPH0336207A (en) * | 1989-07-01 | 1991-02-15 | Kenzo Tokushima | Sonde for blast furnace |
WO2017174135A1 (en) * | 2016-04-07 | 2017-10-12 | Tmt Tapping-Measuring-Technology Gmbh | Radar antenna device and method for shielding a radar antenna device |
-
2020
- 2020-12-15 DE DE102020133545.8A patent/DE102020133545A1/en active Pending
-
2021
- 2021-11-24 WO PCT/EP2021/082837 patent/WO2022128377A1/en active Application Filing
- 2021-11-24 JP JP2023535008A patent/JP2023552836A/en active Pending
- 2021-11-24 KR KR1020237022171A patent/KR20230118884A/en unknown
- 2021-11-24 EP EP21819443.9A patent/EP4263877A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1583187A1 (en) * | 1967-11-18 | 1970-07-23 | Krupp Gmbh | Monitoring device for blast furnaces and methods for operating the same |
DE2709548A1 (en) * | 1976-03-17 | 1977-09-22 | Wurth Anciens Ets Paul | METHOD AND DEVICE FOR DETERMINING THE SURFACE PROFILE OF MOELLER SHOCKING IN A SHAFT FURNACE |
DE3015006A1 (en) * | 1979-04-18 | 1980-10-30 | Aga Ab | METHOD AND ARRANGEMENT FOR REGISTERING THE TOPOGRAPHY FOR THE BATCH IN A BLAST FURNACE |
JPH0336207A (en) * | 1989-07-01 | 1991-02-15 | Kenzo Tokushima | Sonde for blast furnace |
WO2017174135A1 (en) * | 2016-04-07 | 2017-10-12 | Tmt Tapping-Measuring-Technology Gmbh | Radar antenna device and method for shielding a radar antenna device |
Also Published As
Publication number | Publication date |
---|---|
KR20230118884A (en) | 2023-08-14 |
JP2023552836A (en) | 2023-12-19 |
EP4263877A1 (en) | 2023-10-25 |
DE102020133545A1 (en) | 2022-06-15 |
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