EP0059904A1 - Installation pour alimenter un récipient métallurgique ayant des points d'insufflation multiples en charbon et procédé pour faire fonctionner l'installation - Google Patents

Installation pour alimenter un récipient métallurgique ayant des points d'insufflation multiples en charbon et procédé pour faire fonctionner l'installation Download PDF

Info

Publication number
EP0059904A1
EP0059904A1 EP82101516A EP82101516A EP0059904A1 EP 0059904 A1 EP0059904 A1 EP 0059904A1 EP 82101516 A EP82101516 A EP 82101516A EP 82101516 A EP82101516 A EP 82101516A EP 0059904 A1 EP0059904 A1 EP 0059904A1
Authority
EP
European Patent Office
Prior art keywords
line
coal
storage container
plant
control valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82101516A
Other languages
German (de)
English (en)
Inventor
Hans J. Mischke
Götz Dr.-Ing. Funke
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of EP0059904A1 publication Critical patent/EP0059904A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal

Definitions

  • the invention relates to a system according to the preamble of claim 1 and a method for operating this system.
  • the storage container of the known system is followed by several batch or dosing bunkers, of which one is alternately emptied for feeding coal dust into the blast furnace with pressurized inert gas and another is filled up from the storage container, the conduits from the storage container to the dosing bunkers and be released or interrupted from the dosing bunkers to the blast furnace by shut-off valves.
  • Closing the shut-off valve of another dosing bunker occurs - even if it may only for a short period of time - to interrupt the continuous flow of fuel into the blast furnace.
  • the shut-off valves are exposed to heavy wear due to the coal dust in them and the associated great friction, which requires an early replacement of the valves and can therefore also lead to interruptions in the continuous introduction of coal dust into the blast furnace.
  • the invention has for its object to improve the introduction of fine-grained fuel in metallurgical process vessels while avoiding irregularities and interruptions and at the same time to reduce the required energy and auxiliary materials and the necessary investment.
  • the injection line in question is also blown free according to the measure of claim 7.
  • the remaining coal dust supply is evenly distributed to the remaining burners.
  • the system for the preparation and input of fuel comprises a transfer container 1 and a rotary tube heater 2 and a grinding system 3.
  • the rotary tube heater 2 has a suitable for gaseous media line 4 and a chimney 5.
  • the filling opening of the rotary tube heater is connected to the transfer container 1 via a conveyor belt 6.
  • the receiving opening of the grinding system 3 is connected to the outlet opening of the rotary tube heater 2 via another conveyor belt 7.
  • the grinding plant 3 has a feed line 8 which is connected to a blower 9.
  • a transport line 10 leads from the grinding system to a swirler or separator 11.
  • the separator 11 is connected to a filter system 13 via a ventilation line 12 and to a storage container 15 via a discharge line 14.
  • the filter system 13 has a vent line 16 leading to the outside and is connected to the storage bunker 15 via a further discharge line 17.
  • the storage bunker 15 is connected via a further line 18 to a filter 19, which in turn has a vent line 20 going outside.
  • the discharge lines 14 and 17 and the line 18 are each equipped with a shut-off valve 14 'or 17', 18 '.
  • the supply bunker 15 is connected via a discharge line 21 to a drive station 22, which in turn is connected to a metering bunker 24 via a refill line 23 equipped with a shut-off valve 23 '.
  • the dosing hopper 24 has a discharge line 25, via which it is connected to a drive station 26, to which a collecting line 27 is connected.
  • the storage container 15 is assigned a weighing device 65 with a differentiating element, from which a signal about the time-related weight change dG 65 / dt of the storage container 15 (for example in kg / s) can be taken.
  • the dosing hopper 24 is also provided with a weighing device 74 assigned to a differentiator which can be used to obtain a signal about the time-related weight change dG 74 / dt of the dosing hopper 24.
  • the system for introducing fine-grained fuels further comprises a line 28 which is connected at one end to a source 29 for a pneumatic conveying medium and at the other end via a moisture separator 30 to a compressor 31, on the output side of which there is a distributor line 32 connects.
  • the line 28 has two branch lines, of which one branch line 4 ′ is connected to the feed line 4 of the rotary tube heater 2 and the other branch line 9 ′ is connected to the inlet side of the blower 9.
  • the distributor line 32 is connected to a pressure accumulator 34 via a connecting line 33.
  • the line 35 branches into a fluidization line 37 opening into the storage bunker 15 and a drive line 38 leading into the drive station 22, each with a control valve 37 'and 38'.
  • the line 36 branches into a fluidization line 39 which opens into the dosing bunker 24 and into a drive line 40 leading to the drive station 26, each with a control valve 39 'or 40'.
  • the upper area of the storage container 15 is connected to the drive station 26 by a pressure compensation line 41.
  • the upper area of the dosing hopper 24 is connected to the drive station 26 via a pressure compensation line 42.
  • the collecting line 27 opens into a distributor bottle 43, from which a multiplicity of individual injection lines 45 branch off uniformly on the circumference into the blast furnace 44.
  • Each of these injection lines 45 is equipped with two shut-off valves 46, 47 and a vent valve 48 connected between them. Between the shut-off valve 47 and the confluence with the blast furnace, each of the injection lines 45 also has a flow resistance regulator 49 and a measuring element 50 with an electrical transmitter 51 assigned to it.
  • the flow resistance regulators 49 have a symbolically indicated pairing of a cone and a cone seat, wherein the flow resistance can be changed by changing the distance between the cone and the cone seat.
  • a line 52 opens, which is connected to a compressed air source 53 and which contains a valve 54 which can be regulated between the full passage cross section and the blocking position.
  • Individual nozzle assemblies or connecting lines 56 lead from the ring line 55 arranged around the blast furnace 44 to the blow molds 57 of the blast furnace 44.
  • a control line leads from the ring line 55 and a corresponding point close to the furnace of the nozzle stack 56 to an electrical differential pressure transmitter 58.
  • the sensors 51 and 58 are connected to the inputs of a common automatic control and regulating system 59, the outputs of which are in turn connected to the actuators of the associated valves 46, 47, 48, 54 and the flow resistance controller 49.
  • the coal entered into the transfer container 1 is conveyed by the conveyor belt 6 into the rotary tube heater 2.
  • Warm gaseous media introduced into the rotary tube heater 2 via the feed line 4 flow around the coal, dry them in direct contact and leave the rotary tube heater 2 together with the moisture expelled from the coal through the chimney 5 into the free atmosphere.
  • This drying process can be designed particularly economically if smoke or exhaust gases are used as drying medium which are used in other processes - e.g. a hot water heater or a boiler system - is a waste product.
  • the dried coal is conveyed from the conveyor belt 7 into the grinding plant 3 and comminuted there to a grain size which, dispersed in a gaseous medium, can be transported through lines.
  • the blower 9 presses a gaseous medium with a pressure of, for example, 40 mbar into the grinding system 3 and presses the coal dust through the transport line 10 into the separator 11, in which a rough separation between the coal and the gaseous medium is brought about, the coal dust can pass through the discharge line 14 into the storage container 15, while the gaseous medium charged with a rest of coal dust reaches the filter system 13 through the ventilation line 12.
  • the filter system 13 the final separation takes place between the coal dust that passes through the discharge line 17 into the storage container 15 and the gaseous medium that comes through the vent line 16 came into the open instead.
  • dry coal dust enables the filter system 13 to function reliably because the bag filter is not clogged and contaminated by moist coal dust.
  • the propellant gas taken from the line 29 is dried in the moisture separator 30 and pressed into the distribution line 32 by the compressor 31 with the required operating pressure of 5 to 6 bar.
  • the required operating pressure is dependent on the pressure in the blast furnace 44 and on the pressure losses in the conveyor system of the system.
  • the coal dust entered into the dosing bunker 24 is stored with a bulk density of approximately 500 kg / m 3.
  • the propellant gas passing through the fluidization line 39 loosens the coal dust by using it to disperse a dispersed coal dust flue gas Mix forms with a density of about 320 kg / m 3 , and conveys it through the discharge line 25 to the drive station 26.
  • the relatively dense coal dust / flue gas mixture is diluted by the flue gas passing through the drive line 40 to a density of approximately 20 kg / m 3 and conveyed into the collecting line 27.
  • the mass of coal dust dm 44 / dt flowing through the manifold 27 into the blast furnace 44 in, for example, kg / s corresponds to the decrease in weight dG 74 / dt determined by the weighing device 74 and the quantity of coal dust stored in the dosing hopper 24.
  • This coal dust mass flow is essentially determined by the volume flow of the propellant gas flowing through the fluidization line 39, which in turn can be regulated by the control valve 39 '.
  • a certain propellant gas volume flow (dV 36 / dt) 'through the line 36 is necessary, which can be measured by the flow meter 36 ".
  • the volume flow flowing through the line 36 is equal to the two Partial flows through the fluidization line 39 and the drive line 40.
  • valve position of the control valve 39 ' is already determined by the difference between the mass flow of coal dust required (dm 44 / dt)' and the actual weight loss dG 74 / dt in the dosing bunker 24, this becomes The position of the control valve 40 'is changed until the propellant volume flow dV 36 / dt measured by the flow meter 36 "corresponds to the necessary volume flow ( dV 36 / dt)'.
  • the dosing hopper 24 is filled with the coal dust located in the storage container 15.
  • the grinding system 3 is first shut down so that the valves 14 ', 17' and 18 'can be closed.
  • the scale 65 is set into operation and the pressure in the reservoir 15 by opening only the shutoff valve 35 ', and then the shut-off valve 23' in the Nach Glaichlleitun g 23 the pressure aligned in D osierbunker 24th
  • the propellant gas passes through line 35 and the fluidization line 37 into the storage container 15, from where it conveys the coal dust to the propellant station 22, while propellant gas dilutes the coal dust stream arriving at the propellant station 22 to Dosing hopper 24 promotes.
  • the valves 37 'and 38' are regulated analogously to the valves 39 'and 40'.
  • the pulverized coal dust flow conveyed by the driving station 22 for refilling the dosing hopper 24 is generally greater than the pulverized coal dust flow conveyed by the driving station 26 into the collecting line 27, so that the weighing device 74 registers an increase in weight per unit of time during the refilling process.
  • the total coal dust mass flow dm 44 / dt conveyed into the blast furnace 44 results from the signal given by the weighing device 65 of the time-related weight change of the storage container 15 dG 65 / dt and the signal given by the weighing device 74 of the time-related weight change of the dosing bunker 24 dG 74 / dt to a weight loss with a negative value and a weight gain with a positive value are included in the formula.
  • the resulting coal dust mass flow dm 44 / dt results in this case
  • the mass flow of coal dust dm 44 / dt conveyed into the blast furnace 44 is controlled via the signal from the weighing device 65 and via the signal from the weighing device 74 in that the control valves 37 'and 39' are opened more or less accordingly.
  • the control valve 37 ' is first closed so that coal dust is no longer removed from the storage container 15 and fed to the drive station 22. Now the propellant gas flows from the line 35 only through the control valve 38 'and blows the shut-off valve 23' cleanly over the dosing hopper 24, so that the closing and later reopening of this valve can be done with little wear. Simultaneously with the switching off of the control valve 37 ', the signal of the weighing device 65 with regard to the change in weight of the storage container 15 for controlling the pulverized coal mass flow dm 44 / dt, which now results exclusively from the signal of the weighing device 74, is eliminated.
  • the excess pressure prevailing in the reservoir 15 is released into the free atmosphere through the opened valve 18 ', the line 18 and the filter 19.
  • the storage container 15 is again supplied with coal dust from the grinding plant 3.
  • the propellant gas partial stream passes through line 35 via the pressure equalization line 42 into the collecting line 27 and is combined there with the propellant gas partial stream from line 36. So that the flow rate of the coal dust-propellant gas mixture in the manifold 27 does not reach impermissibly high values with premature signs of wear on downstream equipment, the propellant gas flow is measured on the flow meters 35 "and 36" and monitored as a sum.
  • the mass of coal dust flowing through the collecting line 27 flows from the distributor bottle 43 through the injection lines 45 and is thus divided into a plurality - for example 30 - partial flows. Since the distributor bottle is on one side of the blast furnace, the injection lines 45 necessarily have different lengths and thus different flow resistances. As a result, there will be different partial flows and thus an uneven input of coal dust into the blast furnace, which should be avoided in accordance with the object of the invention.
  • the respective coal dust mass flow is measured in each measuring element 50 installed in the injection lines 45 and as a measured value forwarded by the assigned electrical transmitter 51 to the control and regulating unit 59.
  • the flow resistance controller 49 is given a pulse which regulates the flow resistance in such a way that the carbon flow in all injection lines 45 is the same.
  • a uniform distribution of the coal dust over the individual blow molds 57 of the blast furnace 44 is only sensible if the hot air coming from the ring line 55 through the nozzle assemblies 56 into the blast furnace also has a sufficient partial flow or throughput.
  • the difference between the pressure on the ring line 55 and the pressure on the nozzle assembly 56 in the vicinity of the blow mold 57 is determined and passed on to the control and regulating unit 59 as a signal using the electrical differential pressure transmitter 58.
  • With a sufficiently large differential pressure there is also a sufficiently large flow of hot air or hot wind. If the pressure difference is too low, however, it must be assumed that not enough hot air passes through the relevant nozzle assembly 56.
  • control and regulating unit 59 emits signals for closing the shut-off valves 46, 47 of the corresponding injection line 45 and for opening the associated valve 54 when the pressure in a nozzle block 56 falls below a certain pressure difference.
  • These valve adjustments stop the coal dust flow from the distributor bottle 43 into the corresponding injection line and the compressed air the compressed air source 53 can pass through the line 52 and blow the flow resistance regulator 49 and the injection line 45 free of coal dust and cool the tip of the injection lance. If the burning point around the corresponding blow mold 57 allows the inflow of hot air again, the valve 54 is closed again and the shut-off valves 46, 47 are opened again, so that the blowing point is supplied with coal dust again.
  • the system described can be connected upstream of another metallurgical process vessel, for example a converter, instead of the blast furnace 44.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Blast Furnaces (AREA)
EP82101516A 1981-03-11 1982-02-27 Installation pour alimenter un récipient métallurgique ayant des points d'insufflation multiples en charbon et procédé pour faire fonctionner l'installation Withdrawn EP0059904A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3109111 1981-03-11
DE19813109111 DE3109111A1 (de) 1981-03-11 1981-03-11 "anlage zum eingeben von kohle in metallurgische prozessgefaesse mit einer vielzahl von einblasstellen und verfahren zum betreiben der anlage"

Publications (1)

Publication Number Publication Date
EP0059904A1 true EP0059904A1 (fr) 1982-09-15

Family

ID=6126838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101516A Withdrawn EP0059904A1 (fr) 1981-03-11 1982-02-27 Installation pour alimenter un récipient métallurgique ayant des points d'insufflation multiples en charbon et procédé pour faire fonctionner l'installation

Country Status (3)

Country Link
EP (1) EP0059904A1 (fr)
JP (1) JPS57203705A (fr)
DE (1) DE3109111A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8300098A (nl) * 1983-01-12 1984-08-01 Hoogovens Groep Bv Systeem voor het doseren van poederkool in een luchtleiding naar een hoogoven.
GB2144837A (en) * 1983-07-19 1985-03-13 Kuettner Gmbh & Co Kg Dr Method of and apparatus for injecting coal dust into an industrial furnace
EP0270013A3 (fr) * 1986-12-04 1989-04-26 Paul Wurth S.A. Procédé d'injection par voie pneumatique de quantités dosées de matières pulvérulentes dans une enceinte se trouvant sous pression variable
EP1013778A1 (fr) * 1998-12-22 2000-06-28 Der Grüne Punkt-Duales System Deutschland Aktiengesellschaft Procédé et installation pour la production de métal à partir de minerais métalliques
CN103612919A (zh) * 2013-10-28 2014-03-05 芜湖新兴铸管有限责任公司 高炉烟煤远距离输送及配加系统的输送配加方法
DE102014216336A1 (de) * 2014-08-18 2016-02-18 Küttner Holding GmbH & Co. KG Verfahren zum Einblasen von Ersatzreduktionsmitteln in einen Hochofen
CN108545483A (zh) * 2018-06-13 2018-09-18 华东理工大学 一种粉体物料密相气力输送的设备及方法
WO2023236170A1 (fr) * 2022-06-10 2023-12-14 河南瑞德克气力输送设备有限公司 Dispositif d'injection constante de matériau solide pour four de fusion
CN117286302A (zh) * 2023-08-29 2023-12-26 山西晋南钢铁集团有限公司 一种转炉喷煤系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2605525B2 (ja) * 1991-09-10 1997-04-30 住友金属工業株式会社 高炉への粉体吹込方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150962A (en) * 1962-04-05 1964-09-29 Babcock & Wilcox Co Pulverized coal firing method and system for blast furnace
US3178234A (en) * 1963-07-30 1965-04-13 Koppers Co Inc Method and apparatus for controlling the injection of particulate material into the tuyere zone of a blast furnace
US3318686A (en) * 1963-07-02 1967-05-09 Koppers Co Inc Method and apparatus for transporting particulate material to a metallurgical furnace
US3346249A (en) * 1960-12-01 1967-10-10 Exxon Research Engineering Co Gaseous fuel control system and apparatus for furnaces
DE1433327A1 (de) * 1962-06-15 1970-01-08 Pullman Inc Verfahren zum Einfuehren von festem Material in eine Reaktionszone,beispielsweise eines Hochofens
DE2259017B1 (de) * 1972-11-28 1974-05-09 Mannesmann Ag, 4000 Duesseldorf Verfahren und Regelvorrichtung zum Zusetzen von Hilfsbrennstoffen zum Blaswind eines Hochofens
DE2243439B2 (de) * 1972-09-04 1978-03-16 The Babcock And Wilcox Co., New York, N.Y. (V.St.A.) Anordnung zum kontinuierlichen Einblasen von Kohle in einen Hochofen
DE2652510B2 (de) * 1975-12-02 1980-06-19 The Babcock & Wilcox Co., New York, N.Y. (V.St.A.) Anordnung zum kontinuierlichen Einblasen von pulverförmiger Kohle in einen Hochofen
EP0024054A1 (fr) * 1979-08-14 1981-02-18 Eisenwerk-Gesellschaft Maximilianshütte mbH Procédé et installation de transport par voie pneumatique de matières solides finement divisées

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346249A (en) * 1960-12-01 1967-10-10 Exxon Research Engineering Co Gaseous fuel control system and apparatus for furnaces
US3150962A (en) * 1962-04-05 1964-09-29 Babcock & Wilcox Co Pulverized coal firing method and system for blast furnace
DE1433327A1 (de) * 1962-06-15 1970-01-08 Pullman Inc Verfahren zum Einfuehren von festem Material in eine Reaktionszone,beispielsweise eines Hochofens
US3318686A (en) * 1963-07-02 1967-05-09 Koppers Co Inc Method and apparatus for transporting particulate material to a metallurgical furnace
US3178234A (en) * 1963-07-30 1965-04-13 Koppers Co Inc Method and apparatus for controlling the injection of particulate material into the tuyere zone of a blast furnace
DE2243439B2 (de) * 1972-09-04 1978-03-16 The Babcock And Wilcox Co., New York, N.Y. (V.St.A.) Anordnung zum kontinuierlichen Einblasen von Kohle in einen Hochofen
DE2259017B1 (de) * 1972-11-28 1974-05-09 Mannesmann Ag, 4000 Duesseldorf Verfahren und Regelvorrichtung zum Zusetzen von Hilfsbrennstoffen zum Blaswind eines Hochofens
DE2652510B2 (de) * 1975-12-02 1980-06-19 The Babcock & Wilcox Co., New York, N.Y. (V.St.A.) Anordnung zum kontinuierlichen Einblasen von pulverförmiger Kohle in einen Hochofen
EP0024054A1 (fr) * 1979-08-14 1981-02-18 Eisenwerk-Gesellschaft Maximilianshütte mbH Procédé et installation de transport par voie pneumatique de matières solides finement divisées

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8300098A (nl) * 1983-01-12 1984-08-01 Hoogovens Groep Bv Systeem voor het doseren van poederkool in een luchtleiding naar een hoogoven.
US4582454A (en) * 1983-01-12 1986-04-15 Hoogovens Groep B.V. Apparatus and method for feeding pulverized coal into an air line to a blast furnace
GB2144837A (en) * 1983-07-19 1985-03-13 Kuettner Gmbh & Co Kg Dr Method of and apparatus for injecting coal dust into an industrial furnace
EP0270013A3 (fr) * 1986-12-04 1989-04-26 Paul Wurth S.A. Procédé d'injection par voie pneumatique de quantités dosées de matières pulvérulentes dans une enceinte se trouvant sous pression variable
AU603162B2 (en) * 1986-12-04 1990-11-08 Paul Wurth S.A. Process for injecting, by pneumatic means, metered quantities of pulverulent material into a chamber which is under variable pressure
EP1013778A1 (fr) * 1998-12-22 2000-06-28 Der Grüne Punkt-Duales System Deutschland Aktiengesellschaft Procédé et installation pour la production de métal à partir de minerais métalliques
US6231638B1 (en) 1998-12-22 2001-05-15 Der Grune Punkt - Dsd Duales System Deutschland Ag Process for producing metal from metal ores
CN103612919B (zh) * 2013-10-28 2016-01-06 芜湖新兴铸管有限责任公司 高炉烟煤远距离输送及配加系统的输送配加方法
CN103612919A (zh) * 2013-10-28 2014-03-05 芜湖新兴铸管有限责任公司 高炉烟煤远距离输送及配加系统的输送配加方法
DE102014216336A1 (de) * 2014-08-18 2016-02-18 Küttner Holding GmbH & Co. KG Verfahren zum Einblasen von Ersatzreduktionsmitteln in einen Hochofen
EP3183369B1 (fr) 2014-08-18 2018-11-07 Küttner Holding GmbH&Co. KG Procédé d'injection d'agents réducteurs de substitution dans un haut-fourneau
US10472689B2 (en) 2014-08-18 2019-11-12 Küttner Holding GmbH & Co. KG Method for blowing substitute reducing agents into a blast furnace
CN108545483A (zh) * 2018-06-13 2018-09-18 华东理工大学 一种粉体物料密相气力输送的设备及方法
CN108545483B (zh) * 2018-06-13 2024-02-27 华东理工大学 一种粉体物料密相气力输送的设备及方法
WO2023236170A1 (fr) * 2022-06-10 2023-12-14 河南瑞德克气力输送设备有限公司 Dispositif d'injection constante de matériau solide pour four de fusion
CN117286302A (zh) * 2023-08-29 2023-12-26 山西晋南钢铁集团有限公司 一种转炉喷煤系统

Also Published As

Publication number Publication date
DE3109111A1 (de) 1982-09-23
JPS57203705A (en) 1982-12-14

Similar Documents

Publication Publication Date Title
DE2831208C2 (fr)
DE2652510C3 (de) Anordnung zum kontinuierlichen Einblasen von pulverförmiger Kohle in einen Hochofen
EP0235562B1 (fr) Procédé et dispositif pour l'introduction dosée de fines granules dans un four industriel
DE69317107T2 (de) Verfahren zum Evakuieren von festen Abfällen aus einer Gasreinigungsvorrichtung
EP2095050B1 (fr) Répartiteur de solides pour installations de soufflage, hauts-fourneaux et similaires
EP0350658B1 (fr) Procédé pour détecter et commander du flux massique de combustible dans l'oxydation partielle de combustibles finement divisés à pulvérulents
EP0059904A1 (fr) Installation pour alimenter un récipient métallurgique ayant des points d'insufflation multiples en charbon et procédé pour faire fonctionner l'installation
DE2646130A1 (de) Druckluftfoerdereinrichtung
DE2703736C2 (de) Vorrichtung zum pneumatischen Aufwärtsfördern von staubförmigem oder feinkörnigem Schüttgut
DE2714355A1 (de) Verfahren und vorrichtung zum einschleusen von rieselfaehigem beschickungsgut
DE1556026A1 (de) Vorrichtung zur pneumatischen Foerderung eines pulverfoermigen Produkts
DE2701390C3 (de) Anordnung zum Dosieren der Beschickung einer Koksofenbatterie
DE2925441C2 (de) Verfahren und Vorrichtung zum Vergasen von Kohle in einer Wirbelschicht
EP0340419B1 (fr) Installation de gazéification de combustibles finement granulés à pulvérulents
DE19841980C2 (de) IS-Schachtofenanlage und Verfahren zum Betreiben einer IS-Schachtofenanlage
DE3050394C2 (de) Verfahren zur Zuführung eines pulverförmigen Brennstoffgemisches zu den Blasformen eines Hochofens
DE2711114A1 (de) Verfahren zum entnehmen von schuettgut aus einem bunker o.dgl. sowie vorrichtung zur durchfuehrung des verfahrens
DE2243439C3 (de) Anordnung zum kontinuierlichen Einblasen von Kohle in einen Hochofen
DE3219813C2 (de) Vorrichtung zum Fördern pulverförmiger Stoffe von einem unter Druck stehenden Behälter zu einer Abgabestelle
DE1906896C2 (de) Anlage zum pneumatischen Transport von Feingut
DE2800320A1 (de) Verfahren und vorrichtung zur verteilung von pulverfoermigem festen brennstoff an brennereinheiten
DE3418455A1 (de) Verfahren und einrichtung zum einblasen feinkoerniger feststoffe in eine metallschmelze
DE421559C (de) Anlage zur Vorbereitung und Zufuehrung von Kohlenstaub zu den verschiedenen Feuerungen eines Betriebes
DE4142916C1 (en) Conveying solid particles over long distance - involves conveying pipe projecting through perforated distribution plate inside distribution container and small conveying pipes in upper part
EP3587924B1 (fr) Dispositif de transport pneumatique et dispositif de chauffage

Legal Events

Date Code Title Description
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

AK Designated contracting states

Designated state(s): AT BE FR GB IT NL

17P Request for examination filed

Effective date: 19830225

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19850424

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MISCHKE, HANS J.

Inventor name: FUNKE, GOETZ, DR.-ING.