EP0340419B1 - Vorrichtung für die Vergasung von feinkörnigen bis staubförmigen Brennstoffen - Google Patents

Vorrichtung für die Vergasung von feinkörnigen bis staubförmigen Brennstoffen Download PDF

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Publication number
EP0340419B1
EP0340419B1 EP89104100A EP89104100A EP0340419B1 EP 0340419 B1 EP0340419 B1 EP 0340419B1 EP 89104100 A EP89104100 A EP 89104100A EP 89104100 A EP89104100 A EP 89104100A EP 0340419 B1 EP0340419 B1 EP 0340419B1
Authority
EP
European Patent Office
Prior art keywords
burners
distributor
fuel
equipment according
lining
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.)
Expired - Lifetime
Application number
EP89104100A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0340419A1 (de
Inventor
Hans-Richard Baumann
Adolf Linke
Hans-Reiner Schweimanns
Karl-Heinz Dutz
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers 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
Application filed by Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Publication of EP0340419A1 publication Critical patent/EP0340419A1/de
Application granted granted Critical
Publication of EP0340419B1 publication Critical patent/EP0340419B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/50—Fuel charging devices
    • C10J3/506—Fuel charging devices for entrained flow gasifiers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/466—Entrained flow processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/12—Heating the gasifier
    • C10J2300/1223—Heating the gasifier by burners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S48/00—Gas: heating and illuminating
    • Y10S48/04—Powdered fuel injection

Definitions

  • the invention relates to a device for the gasification of fine-grained to dust-like fuels in the dust cloud with oxygen and / or air and, if appropriate, water vapor in a gasification reactor, which has at least two burners arranged in one plane in the side wall of the reactor, with a single supply container Fuel are supplied.
  • the autothermal gasification of fine-grained to dust-like fuels with an average grain size of approx. 50 ⁇ m in the fly dust cloud with oxygen and / or air and possibly water vapor has long been known under the name Koppers-Totzek process.
  • the fuel to be gasified and the reaction media are blown into an empty gasification reactor via the burners, where they are converted into a raw gas at temperatures above the slag melting point by partial oxidation, which can be worked up either to synthesis gas or to fuel gas.
  • the fuel can be fed to the burners via screw conveyors, which permit good quantity control.
  • the fuel is first fed by the screw conveyor to a so-called mixing head and from there it is blown into the gasification reactor by the flow of the gaseous or vaporous reaction media via the burner heads.
  • the gasification can be operated under increased pressure between 10 and 100 bar, preferably between 25 and 45 bar.
  • the print version of the Koppers-Totzek process is referred to as the PRENFLO process.
  • screw conveyors are not very suitable for transporting the fuel to the burners. Instead, pneumatic conveying with a preferably inert conveying gas is used.
  • Gasification in the dust cloud requires precise metering of fuel and reaction media.
  • High throughput gasification reactors are preferably equipped with two or more burners. For an optimal operating result, the most uniform and uniform fuel supply to all burners of the gasification reactor must be ensured. In the normal case, the fluctuation range of the flow rate density in the fuel supply should be only approx. ⁇ 2%.
  • a device for the pressure gasification of dusty fuels in which the three burners of a gasification reactor are supplied with fuel from a single supply container, the fuel being transported directly to the burners via three parallel lines.
  • the distribution container has three segment-shaped sections in its lower part, into each of which one of the lines leading to the burners projects.
  • the fuel is kept in the fluidized state in the supply container and is drawn off in this state and fed to the burners.
  • the regulation of the fuel flow takes place via measuring points which are arranged in each delivery line and which control the valves for the supply of carrier gas into the lower part of the supply container.
  • a further supply of carrier gas is provided in the delivery lines, this supply also being controlled by valves.
  • EP-A-114 334 describes a method for supplying finely divided, powdered coal to the wind forms of a tangential combustion furnace. It is provided here that the coal reaches the wind forms directly from the coal grinding plant via feed lines which have a different line routing.
  • a specially designed throttle valve is arranged in each of these lines, which has rotatable plate segments inside, which can be adjusted from the outside in such a way that a narrowing of the free flow cross section inside the throttle valve.
  • the invention has for its object to design the device of the type mentioned in such a way that a uniform and uniform fuel supply to all burners of the gasification reactor is guaranteed.
  • the device serving to solve this problem is to be characterized at the same time by the least possible outlay in terms of apparatus and is also intended to allow the greatest possible design freedom with regard to the line routing for the fuel supply to the burners.
  • the device of the type mentioned at the outset which is used to solve this problem, is characterized in that a distributor is arranged vertically below the feed container, which is connected to the burners of the gasification reactor via the lines for the fuel supply, these lines being different Have length and / or line routing and the resulting pressure loss is compensated by the installation of throttles in such a way that when the fuel enters the burner, the pressure difference between the distributor and the respective burner is the same in all cases.
  • the device shown in Fig. 1 consists of the supply container 1, in which the fuel to be gasified is located.
  • the distribution container 1 is so pressurized that a pneumatic transport of the fuel via the downstream lines to the burners 3 to 6 in Gasification reactor 2 is possible.
  • the fuel is withdrawn from the supply container 1 via the delivery line 7 and reaches the distributor 8, which is arranged relatively close below the funnel-shaped outlet of the supply container 1.
  • both the feed container 1 and the distributor 8 can be arranged at some distance from the gasification reactor 2.
  • the lines 9, 10, 11 and 12 for the fuel supply to the burners 3, 4, 5 and 6 extend from the distributor 8. As shown schematically in the figure, these cables have different lengths and routings.
  • Changes in the output of the gasification reactor 2 can be made by changing the setpoint of the differential pressure controller 20 accordingly.
  • the differential pressure regulator 20 regulates the pressure difference between the feed container 1 and the gasification reactor 2.
  • the throttles 13 can be replaced by suitable control valves of conventional design, which make it possible to set the fuel flow to each burner the same or different. In this case, the differential pressure between the feed hopper 1 and the gasification reactor 2 is kept constant.
  • FIG. 1 shows only the parts of the system necessary to explain the invention in a schematic representation.
  • the constructive design of these parts of the system that is to say in particular the feed container 1, the gasification reactor 2, the distributor 8 and the burners 3, 4, 5 and 6, was not discussed in detail since this is not the subject of the invention.
  • the supply container 1 must also be equipped with appropriate devices for the supply of fuel and for keeping the pressure constant, which are also not shown in the figure. This can also be units known for this purpose, e.g. Pressure pot conveyor or lock bunker, act.
  • the structural details of the throttle 13 can be seen in the illustration in FIG. 2, which shows a section through such a throttle.
  • the throttle consists of a cylindrical jacket 14, the outer diameter of which corresponds approximately to the flange diameter of the pipeline in which the throttle is installed. Since the throttle is flanged into this pipeline, it is also advantageous if the cylindrical jacket 14 from the the same metallic material as the pipeline. At its front and rear ends, the cylindrical jacket 14 has an inner diameter d 1 which corresponds to the inner diameter of the connected pipeline.
  • the lining 15, which consists of a wear-resistant material such as ceramic, and which can optionally be composed of several parts, is arranged within the cylindrical jacket 14. The shape of the lining 15 is such that it can accommodate the displacement body 16.
  • This is also made of a wear-resistant material and is fastened within the lining 15 by means of the webs 17 in such a way that an annular gap 18 is formed between the lining 15 and the displacement body 16, which gap corresponds to the height of the webs 17.
  • the displacer 16 has a shape in which its two ends taper conically, while a cylindrical part is located in the middle.
  • the sealing rings 19 serve to seal the lining 15 within the cylindrical jacket 14.
  • the lining 15 is pressed into the jacket 14 by the projection 21 on the flange of the pipeline to be connected.
  • the pressure loss in the throttle depends on the width and length of the annular gap 18 and the fuel / conveying gas velocity in the annular cross section of the gap 18, which is greater than in the pipeline with the diameter d 1.
  • the calculation of a throttle that proves to be suitable under the conditions of so-called flow promotion is based on experimentally determined data with a Accuracy of ⁇ 5% possible.
  • the installation of the throttle also has the advantage that coarser particles in the fuel, such as fibers, leading to blockages are already held in place and cannot first get into the burner, from which they would be far more difficult to remove.
  • care must be taken that their effect is not so great that the fuel supply to the burner is disrupted as a result of the line being blocked.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Lift Valve (AREA)
EP89104100A 1988-04-21 1989-03-08 Vorrichtung für die Vergasung von feinkörnigen bis staubförmigen Brennstoffen Expired - Lifetime EP0340419B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3813357A DE3813357A1 (de) 1988-04-21 1988-04-21 Vorrichtung fuer die vergasung von feinkoernigen bis staubfoermigen brennstoffen
DE3813357 1988-04-21

Publications (2)

Publication Number Publication Date
EP0340419A1 EP0340419A1 (de) 1989-11-08
EP0340419B1 true EP0340419B1 (de) 1992-02-26

Family

ID=6352513

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104100A Expired - Lifetime EP0340419B1 (de) 1988-04-21 1989-03-08 Vorrichtung für die Vergasung von feinkörnigen bis staubförmigen Brennstoffen

Country Status (11)

Country Link
US (1) US4971600A (enrdf_load_stackoverflow)
EP (1) EP0340419B1 (enrdf_load_stackoverflow)
CN (1) CN1020628C (enrdf_load_stackoverflow)
CS (1) CS275725B6 (enrdf_load_stackoverflow)
DD (1) DD283834A5 (enrdf_load_stackoverflow)
DE (2) DE3813357A1 (enrdf_load_stackoverflow)
ES (1) ES2030225T3 (enrdf_load_stackoverflow)
IN (1) IN171823B (enrdf_load_stackoverflow)
PL (1) PL154623B1 (enrdf_load_stackoverflow)
TR (1) TR25267A (enrdf_load_stackoverflow)
ZA (1) ZA891409B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008052673A1 (de) 2008-10-22 2010-04-29 Uhde Gmbh Nachfördersystem in einen Kohlevergasungsreaktor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI461522B (zh) * 2008-03-05 2014-11-21 Thyssenkrupp Uhde Gmbh 用於煤的氣化反應器之連續燃料供應系統
SE534818C2 (sv) * 2010-05-06 2012-01-10 Cortus Ab Förfarande och anordning för införande av pulverformigt material i en förgasningsreaktor, varvid anordningen innefattar en lavaldysa
DE102011077910A1 (de) * 2011-06-21 2012-12-27 Siemens Ag Vergleichmäßigte Einspeisung von Stäuben mit fester Drosselstelle in der Staubförderleitung
DE102011083850A1 (de) * 2011-09-30 2013-04-04 Siemens Aktiengesellschaft Pneumatische Brennstoffzuführung von einem Dosiergefäß zu einem Vergasungsreaktor mit hohem Differenzdruck
US9295961B2 (en) 2012-03-26 2016-03-29 Sundrop Fuels, Inc. Various methods and apparatuses for internally heated radiant tubes in a chemical reactor
JP7123569B2 (ja) * 2018-02-19 2022-08-23 三菱重工業株式会社 粉体燃料供給装置、ガス化炉設備およびガス化複合発電設備ならびに粉体燃料供給装置の制御方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477414A (en) * 1944-07-15 1949-07-26 Permanente Metals Corp Pneumatic dust conveyer
US3204942A (en) * 1963-02-18 1965-09-07 Babcock & Wilcox Co Distributor for pneumatically transported particle-form material
US3144276A (en) * 1962-04-23 1964-08-11 Safety First Products Corp Apparatus for uniformly mixing and distributing dry powder fire extinguishing chemicals
US3337273A (en) * 1965-12-06 1967-08-22 Rader Pneumatics & Eng Co Ltd Re-entrainment apparatus for conveying pipe-lines
DD147188A3 (de) * 1977-09-19 1981-03-25 Lutz Barchmann Verfahren und vorrichtung zur druckvergasung staubfoermiger brennstoffe
US4459922A (en) * 1983-01-24 1984-07-17 Combustion Engineering, Inc. Externally adjustable pipe orifice assembly
US4554721A (en) * 1983-09-26 1985-11-26 Combustion Engineering, Inc. Method of manufacturing a wear resistant pipe
AU538402B3 (en) * 1984-01-10 1984-08-30 Aberfoyle Services Pty. Ltd. Injection of fine solid material against a pressure head
GB8406914D0 (en) * 1984-03-16 1984-04-18 Shell Int Research Gasification of pulverized solid fuel
LU86701A1 (fr) * 1986-12-04 1988-07-14 Wurth Paul Sa Procede d'injection par voie pneumatique,de quantites dosees de matieres pulverulentes,dans une enceinte se trouvant sous pression variable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008052673A1 (de) 2008-10-22 2010-04-29 Uhde Gmbh Nachfördersystem in einen Kohlevergasungsreaktor

Also Published As

Publication number Publication date
US4971600A (en) 1990-11-20
DE58900846D1 (de) 1992-04-02
CS275725B6 (en) 1992-03-18
TR25267A (tr) 1992-12-04
PL154623B1 (en) 1991-08-30
ES2030225T3 (es) 1992-10-16
CN1020628C (zh) 1993-05-12
EP0340419A1 (de) 1989-11-08
DD283834A5 (de) 1990-10-24
CN1037358A (zh) 1989-11-22
ZA891409B (en) 1989-11-29
DE3813357A1 (de) 1989-11-02
IN171823B (enrdf_load_stackoverflow) 1993-01-23
PL278185A1 (en) 1989-12-27

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