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DE3130662A1 - Pulverised coke combustion process in large-scale combustion installations - Google Patents

Pulverised coke combustion process in large-scale combustion installations

Info

Publication number
DE3130662A1
DE3130662A1 DE19813130662 DE3130662A DE3130662A1 DE 3130662 A1 DE3130662 A1 DE 3130662A1 DE 19813130662 DE19813130662 DE 19813130662 DE 3130662 A DE3130662 A DE 3130662A DE 3130662 A1 DE3130662 A1 DE 3130662A1
Authority
DE
Germany
Prior art keywords
coal
pulverised
combustion
fuel oil
installations
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Withdrawn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
DE19813130662
Other languages
German (de)
Inventor
Heinz-Leopold Dipl.-Ing. 6521 Bechtheim Hartmann
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.)
Huther & Co
Original Assignee
Huther & Co
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 Huther & Co filed Critical Huther & Co
Priority to DE19813130662 priority Critical patent/DE3130662A1/en
Publication of DE3130662A1 publication Critical patent/DE3130662A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/32Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
    • C10L1/322Coal-oil suspensions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

The process relates to pulverised coke combustion in large-scale combustion installations and has the purpose of a technically simple and economically advantageous utilisation of already existing large-scale combustion installations fired with fuel oil, so that there is an incentive for using pulverised coal. This is achieved in such a way that stockpiled or freshly delivered lump coal (having a normal delivery moisture content of about 6-15%) is fed under control to the large-scale combustion installation and ground to very fine coal (of about 0.09-0.2 mm), the quantity of very fine coal fed under control is continuously mixed with a quantity of fuel oil likewise fed under control and the very fine coal/fuel oil emulsion of defined mixing ratio is fed to the burner directly or via a storage tank.

Description

Die Erfindung betrifft ein Verfahren zur KohlenstaubverbrennungThe invention relates to a method for burning coal dust

in Großfeuerungsanlagen.in large combustion plants.

Es ist bekannt und üblich und in wachsendem Maße aus volkswirtschaftlichen Gründen wünschenswert, in Grofeuerungsanlagen vermahlenen Kohlestaub zu verfeuern. Die hierauf eingestellten und darauf ausgeriehteten Großfeuerungsanlagen lassen sich den feingemahlenen Kohle staub in Inert-Tankern anliefern und lagern den Kohlestaub in Inert-Silos. Eine Großfeuerungsanlage, die sich von Heizöl auf Kohlestaubfeuerung umstellen will, bedarf des kompletten Umbaus der Brenneranlage. Gleichzeitig müssen bei einer derartigen Umstellung auch die Entstaubungsanlagen umgebaut werden.It is known and common and increasingly from economic Reasons desirable to burn pulverized coal in large combustion plants. Leave the large combustion systems set up and geared to it deliver the finely ground coal dust in inert tankers and store the coal dust in inert silos. A large combustion system that changes from fuel oil to pulverized coal combustion wants to convert requires a complete conversion of the burner system. Must have at the same time In the case of such a conversion, the dust extraction systems are also converted.

Die Umstellung einer Großfeuerungsanlage von Heizöl auf Kohlenstaub erfordert somit bedeutende bauliche Maßnahmen und Änderung des Transport- und Lagersystems.The conversion of a large combustion system from heating oil to coal dust therefore requires significant structural measures and changes to the transport and storage system.

Der Erfindung liegt die Aufgabe zugrunde, diesen Nachteil zu beseitigen und die Umstellung und Einrichtung von Großfeuerungsanlagen zu ermöglichen, die bedeutende Mengen von Kohlenstaub verbrennen.The invention is based on the object of eliminating this disadvantage and enabling the conversion and installation of large-scale combustion plants that produce significant amounts of coal dust burn.

Gelöst wird diese Aufgabe bei einem Verfahren der eingangs erwähnten Art nach der Erfindung dadurch, daß aufgehaldete'oder frisch angelieferte Stückkohle (mit normaler Anlieferfeuchte von ca. 6 - 15 % ) in der Großfeuerungsanlage dosiert und zu Feinstkohle (von etwa 0,09 - 0,2 mm) verrnahlen, die dosierte Feinstkohlenmenge einer ebenfalls dosierten Heizölmenge kontinuierlich zugemischt und die in ihrem Iischungsverhältnis definierte Feinstkohle-Heizöl-Emulsion dem Brenner unmittelbar oder über einen Lagertank zugeführt wird.This object is achieved in a method of the type mentioned at the beginning Type according to the invention in that stocked or freshly delivered lump coal (with normal delivery humidity of approx. 6 - 15%) dosed in the large combustion system and grind to fine carbon (from approx. 0.09 - 0.2 mm), the dosed amount of fine carbon continuously added to a metered amount of heating oil and the in their Mixing ratio defined fine coal-heating oil emulsion directly to the burner or supplied via a storage tank.

Vorteilhaft wird das Mischungsverhältnis der Feinstkohle-Heizöl-Emulsion in Abhängigkeit vom Heizwert der Kohle festgesetzt und reicht bis zu einem Feststoffanteil von ca. 60 %.The mixing ratio of the fine coal / heating oil emulsion is advantageous determined depending on the calorific value of the coal and ranges up to a solid content of about 60%.

Diesem Vorschlag zufolge wird also auf eine totale Umstellung von Heizöl auf Kohlenstaubfeuerung in einer Großfeuerungsanlage verzichtet. Diese nur teilweise Umwandlung von einem Typ einer Großfeuerungsanlage in einen anderen führt zu einem Mischtyp, der unerwartete Vorteile bringt.According to this proposal, a total changeover from Fuel oil dispensed with pulverized coal combustion in a large combustion system. This only partial conversion from one type of large combustion plant to another to a mixed type that brings unexpected benefits.

Die Stückkohlen können in normalen Transportmitteln (Wagon, Schiff und LKW) zur Feuerungsanlage geliefert und beliebig aufgehaldet werden. Der Einsatz von speziellen Inert-Tankern und Inert-Silos entfällt. Da die Stückkohle mit der normalen Anlieferfeuchte herantransportiert und vermahlen wird, entstehen keine solch großen Staubprobleme wie bei besonders trockener Stückkohle. Etwaige Kohlenstaubprobleme werden aber insbesondere dadurch beseitigt, daß eine dosierte Heizölmenge kontinuierlich zugemischt wird, ehe diese Emulsion dem Brenner zugeführt und dort verbrannt wird.The lump coal can be transported in normal means of transport (wagon, ship and trucks) can be delivered to the furnace and heaped up as required. The use There is no need for special inert tankers and inert silos. Since the lump coal with the normal delivery moisture is transported and ground, there are no such large dust problems as with particularly dry lump coal. Any coal dust problems but are in particular eliminated by the fact that a metered amount of heating oil is continuous is admixed before this emulsion is fed to the burner and burned there.

Die Emulsion ist ausreichend lagerfähig und stabil. Sie kann jederzeit in den für die Verfeuerung von Heizöl von Heizöl bestimmten Brennern verbrannt werden, die nur hinsichtlich der Brennerdüsen geringfügige Änderungen erfahren müssen.The emulsion is sufficiently storable and stable. She can anytime are burned in the burners intended for the combustion of heating oil from heating oil, which only have to undergo minor changes with regard to the burner nozzles.

Das oben beschriebene Verfahren ist geeignet, ca. 33 % Heizöl durch Kohle zu ersetzen, ohne daß wesentliche Umstellungsmaßnahmen erforderlich sind. Die bislang beobachtete zögernde Umstellung von Großfeuerungsanlagen von Öl auf Kohle staub kann somit wesentlich beschleunigt werden.The method described above is suitable for approx. 33% heating oil through Replace coal without the need for major conversion measures. The hesitant conversion of large combustion plants from oil to Coal dust can thus be accelerated considerably.

Claims (2)

Verfahren zur Kohl enstaubverbrennung in Großfeuerungsanlagen Patentansprüche 1. Verfahren zur Kohlenstaubverbrennung in GroBfeuerungsanlagen, dadurch gekennzeichnet, daß - aufgehaldete oder frisch angelieferte Stückkohle (mit normaler Anlieferfeuchte von ca. 6 - 15 %) in der Großfeuerungsanlage dosiert und zu Feinstkohle (von etwa 0,09 -0,2 mm) vermahlen, - die dosierte Feinstkohlenmenge einer ebenfalls dosierten Heizölmenge kontinuierlich zugemischt und - die in ihrem Mischungsverhältnis definierte Feinstkohle-Heizöl-Emulsion dem Brenner unmittelbar oder über einen Lagertank zugeführt wird.Process for burning coal dust in large combustion plants 1. Process for burning coal dust in large combustion plants, characterized in that that - piled up or freshly delivered lump coal (with normal delivery moisture from approx. 6 - 15%) dosed in the large combustion system and converted to fine coal (from approx 0.09-0.2 mm), - the dosed amount of fine carbon of a dosed Amount of heating oil continuously mixed in and - the one defined in its mixing ratio Finest coal heating oil emulsion is fed to the burner directly or via a storage tank will. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Mischungsverhältnis der Feinstkohle-Heizöl-Emulsion in Abhängigkeit vom Heizwert der Kohle festgesetzt wird und bis zu einem Feststoffanteil von ca. 60 ffi reicht.2. The method according to claim 1, characterized in that the mixing ratio the fine coal-heating oil emulsion depending on the calorific value of the coal and reaches up to a solids content of approx. 60 ffi.
DE19813130662 1981-08-03 1981-08-03 Pulverised coke combustion process in large-scale combustion installations Withdrawn DE3130662A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813130662 DE3130662A1 (en) 1981-08-03 1981-08-03 Pulverised coke combustion process in large-scale combustion installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813130662 DE3130662A1 (en) 1981-08-03 1981-08-03 Pulverised coke combustion process in large-scale combustion installations

Publications (1)

Publication Number Publication Date
DE3130662A1 true DE3130662A1 (en) 1983-02-17

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DE19813130662 Withdrawn DE3130662A1 (en) 1981-08-03 1981-08-03 Pulverised coke combustion process in large-scale combustion installations

Country Status (1)

Country Link
DE (1) DE3130662A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9777235B2 (en) 2016-04-04 2017-10-03 Allard Services Limited Fuel oil compositions and processes
US10676676B2 (en) 2016-04-04 2020-06-09 Arq Ip Limited Solid-liquid crude oil compositions and fractionation processes thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9777235B2 (en) 2016-04-04 2017-10-03 Allard Services Limited Fuel oil compositions and processes
US10676676B2 (en) 2016-04-04 2020-06-09 Arq Ip Limited Solid-liquid crude oil compositions and fractionation processes thereof
US11254886B2 (en) 2016-04-04 2022-02-22 Arq Ip Limited Fuel oil / particulate material slurry compositions and processes
US11286438B2 (en) 2016-04-04 2022-03-29 Arq Ip Limited Fuel oil / particulate material slurry compositions and processes
US11319492B2 (en) 2016-04-04 2022-05-03 Arq Ip Limited Solid-liquid crude oil compositions and fractionation processes thereof
US11718794B2 (en) 2016-04-04 2023-08-08 Arq Ip Limited Solid-liquid crude oil compositions and fractionation processes thereof
EP4656705A2 (en) 2016-04-04 2025-12-03 Arq Ip Limited Fuel oil compositions and processes
US12522768B2 (en) 2016-04-04 2026-01-13 Arq Ip Limited Solid-liquid crude oil compositions and fractionation processes thereof

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