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WO2009097636A2 - Procédé et installation pour brûler une matière combustible en morceaux - Google Patents

Procédé et installation pour brûler une matière combustible en morceaux Download PDF

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Publication number
WO2009097636A2
WO2009097636A2 PCT/AT2009/000019 AT2009000019W WO2009097636A2 WO 2009097636 A2 WO2009097636 A2 WO 2009097636A2 AT 2009000019 W AT2009000019 W AT 2009000019W WO 2009097636 A2 WO2009097636 A2 WO 2009097636A2
Authority
WO
WIPO (PCT)
Prior art keywords
supplied
combustion
combustion chamber
cement
air
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.)
Ceased
Application number
PCT/AT2009/000019
Other languages
German (de)
English (en)
Other versions
WO2009097636A3 (fr
Inventor
Wolfgang Freimann
Thomas Schober
Wolfgang Hammer
Wilfred Zieri
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.)
A TEC HOLDING GmbH
Original Assignee
A TEC HOLDING 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 A TEC HOLDING GmbH filed Critical A TEC HOLDING GmbH
Publication of WO2009097636A2 publication Critical patent/WO2009097636A2/fr
Publication of WO2009097636A3 publication Critical patent/WO2009097636A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/006—General arrangement of incineration plant, e.g. flow sheets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/008—Incineration of waste; Incinerator constructions; Details, accessories or control therefor adapted for burning two or more kinds, e.g. liquid and solid, of waste being fed through separate inlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/12—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of plastics, e.g. rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/20—Rotary drum furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00—Supplementary heating arrangements
    • F23G2204/10—Supplementary heating arrangements using auxiliary fuel
    • F23G2204/101—Supplementary heating arrangements using auxiliary fuel solid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/20—Waste heat recuperation using the heat in association with another installation
    • F23G2206/201—Waste heat recuperation using the heat in association with another installation with an industrial furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/22—Waste papers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/26—Biowaste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/28—Plastics or rubber like materials
    • F23G2209/281—Tyres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/50007—Co-combustion of two or more kinds of waste, separately fed into the furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/52001—Rotary drums with co-current flows of waste and gas
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/30—Technologies for a more efficient combustion or heat usage

Definitions

  • the invention relates to a method for burning lumpy kiln with the features of the introductory part of claim 1.
  • Airworthy fuels plastic, paper, wood, sawdust and the like
  • incineration for example also mechanically or pneumatically.
  • Airworthy fuels of the precombustion chamber can be given up pneumatically or mechanically via lock systems.
  • the airborne fuels are intimately mixed with the combustion air, which prevents agglomeration and packing.
  • the invention is based on the object to improve the burning of particulate fuels.
  • the invention further relates to a system in which the inventive method can be advantageously carried out.
  • This plant is characterized in particular by the independent, on a
  • lifting devices can be provided inside the rotary tube.
  • the burning of fuels in a rotary tube allows burning in a highly oxidizing atmosphere, so that the formation of carbon monoxide is reduced.
  • the oxygen-containing exhaust gas emerging from the rotary tube is introduced into the calcining system of the cement production after leaving the rotary tube via the tertiary air line in an exemplary embodiment.
  • the system preferably preheated, raw meal from a heat exchanger cyclone stage via an adjustable flour turn, a flour line and a pendulum flap is supplied to the system.
  • other mineral (natural or synthetic) components may also be used.
  • the strong endothermic reaction of calcium carbonate (common cement raw meal consists of more than 70% calcium carbonate CaCO 3 ) at around 800 ° C allows the temperature to be stabilized by controlling the addition of the quantity. In this way, it is ensured that the formation of thermal nitrogen oxides (NO x ) is prevented despite highly oxidizing combustion.
  • a fresh air damper can be opened and the emergency cooling system activated (for example flooding the plant with cement raw meal).
  • the known problem of incomplete combustion of inhomogeneous fuels is counteracted in the inventive system in an exemplary embodiment by variable speed of the rotary tube in which the combustion is carried out, thus ensuring a complete combustion of flyable fuels on the one hand and lumpy fuels on the other.
  • the resulting ashes and at least partially acidified flour are preferably supplied to the cement kiln via known systems, but can also be discharged, cooled and further processed.
  • Another advantage of the method and the system according to the invention is that coarse fuels can be burned in a good atmosphere.
  • FIG. 1 shows schematically a plant and FIG. 2 shows a flow chart of the process according to the invention.
  • the plant shown in Fig. 1 has a rotary kiln 13 with raceway stations 21, a drive station 23 and a stovepipe.
  • the rotary kiln 13 operates in cocurrent (combustion air stream, Brennstoffström anddematerialström in the form of preheated raw meal and / or mineral components) and is for example a used (old) rotary tube from a plant for producing cement clinker, but does not serve for the production of cement clinker.
  • FIG. 1 an arrangement of (three) cyclones, which serve as a heat exchanger (cyclone heat exchanger) is shown on the right. Furthermore, a rotary kiln for producing cement clinker, with which the system according to the invention can be combined, is shown below (dashed) in FIG. 1 below.
  • an inlet chamber 10 is provided to the left of the rotary kiln 13, whereas at the opposite end of a furnace head 14 is arranged.
  • inlet chamber 10 opens a chute 25 through which the rotary kiln 13 chunky kiln is abandoned to be burned in this in a good atmosphere.
  • a fuel feed lock 9 is provided in the lumpy fuels, such as old tires and the like, are abandoned.
  • inlet chamber 10 of the rotary kiln 13 further opens a coming from a pre-combustion chamber 8 chute 27.
  • pre-combustion chamber 8 airworthy fuel, such as paper, plastic, grain pods or the like, burned.
  • pre-combustion chamber 8 opens a chute 7, via the pre-combustion chamber 8 airworthy fuel is abandoned.
  • a line 3 is supplied via the combustion air.
  • a slide 4 is provided, with which the supply of combustion air can be controlled via the line 3 in the pre-combustion chamber 8.
  • Cooling air in which a slide 6 is provided for controlling the supply of cooling air.
  • a line 29 in which a pendulum flap 31 is provided m one of a silo 11 leading line 33, in which a slide 35 is provided, mouths.
  • raw meal is contained in the silo 11, but other mineral (natural or artificial) components may be used.
  • the raw meal is supplied via a raw meal feed line 37.
  • the feeding of raw meal from the silo 11 to the precombustion chamber 8 via a pendulum flap 3 in the line 29 serves for "emergency cooling" in the precombustion chamber 8 and in the rotary kiln 13.
  • the cyclone 12 is heated raw meal at a temperature of about 700 ° (when the second lowest heat exchanger cyclone stage is used), which is only slightly decarbonated contained.
  • an adjustable flour diverter 39 By means of an adjustable flour diverter 39, a heated partial raw meal flow (from the cyclone 12, 0 to 100% controllable) corresponding to the temperature in the pre-combustion chamber 8 and the rotary kiln 13 is supplied via the line 29 to the line 3 and to the pre-combustion chamber 8, but it can also others mineral (natural or artificial) components are used for temperature stabilization.
  • the other heated partial raw meal (0-100%) is fed to the calciner before the rotary kiln in which cement clinker is produced.
  • the temperature in the pre-combustion chamber 8 and the rotary kiln 13 can be controlled by either more or less heated raw meal is supplied from the cyclone 12, in an emergency by supplying cool raw meal from the Silo 11 can be cooled quickly.
  • the conduit 3 for supplying combustion air starts from a Tertiar Kunststoff für 1, in which a slide 2 is provided.
  • the Tertiar Kunststoff für 1 is connected via an exhaust duct 15, in which a gate valve 16 is provided with the furnace head 14, so that from the Tertiar réelle 1 heated air emerges, the one Calcining system supplied or in another process (eg for drying) is used.
  • This air contains less oxygen than normal air, namely only 5% to 10% oxygen.
  • the air supplied to the tertiary air duct 1 has a temperature of 900 ° C (in cement rotary kiln exhaust hood extraction) and contains about 21% oxygen.
  • the air supplied to the tertiary air line 1 preferably originates from a clinker cooler and / or from another process or processes (exhaust gas, chlorine bypass, clinker cooler exhaust air, fresh air, etc.).
  • a material discharge 17 From the furnace head 14 of the rotary kiln 13 is still a material discharge 17, in which a pendulum flap 40 is provided which leads via a material chute 41 either in the inlet chamber of the rotary kiln for producing (burning) cement clinker or used for discharge and other recovery ,
  • the tertiary air duct 1 is supplied with air at a temperature of about 900 ° C (about 21% oxygen content) from the clinker cooler of a cement kiln (rotary kiln) and finally fed to the calcining system as treated combustion air.
  • a partial flow (controllable with the tertiary air slide 2 and the combustion air feed slide 4) is taken from the tertiary air line 1 via a combustion air feed line 3.
  • fresh air or process exhaust air can also be fed via the combustion air line 3 into the precombustion chamber 8 to the rotary kiln 13.
  • Airworthy fuels plastic, paper, sawdust and the like
  • a lock system and the line 7.
  • the precombustion chamber 8 there is an intimate mixing of the combustible fuels with combustion air (supplied via the line 3), so that agglomeration and packing are prevented.
  • the rotary tube of the rotary kiln 13 may be equipped with (known) lifting devices.
  • the described construction and operation allows the burning in a highly oxidizing atmosphere, which causes the formation of Carbon monoxide prevents.
  • the oxygen-containing (about 5% to 10% oxygen) exhaust gas is preferably fed after leaving the rotary kiln 13 via the line 15 (with slide 16) of the tertiary air line 1 and introduced via this into the calcination system.This need not be so, it can oxygen-containing exhaust gas can also be supplied to another utilization (eg for drying).
  • the strongly endothermic reaction of calcium carbonate deacidification (common cement raw meal consists of more than 70% calcium carbonate CaCO 3 ) at about 860 ° C allows the temperature stabilization by choosing the amount of flour addition. This ensures that, despite highly oxidizing combustion, the formation of nitrogen oxides (NO x ) is prevented.
  • the fresh air flap 6 in the line for supplying cooling air 5 is opened and / or the emergency cooling system with the silo 11, containing preferably raw meal, is activated.
  • the silo 11, containing preferably raw meal is activated.
  • other mineral (natural or artificial) components may be used.
  • the resulting ash and the at least partially acidified raw meal are preferably fed to the cement kiln via known systems, but can also be discharged, cooled and further processed. Overall, it is advantageous that the rotary kiln 13 takes over part of the work of the cement kiln for the production of cement clinker by the operation of the invention.
  • the atmosphere in the pre-combustion chamber 8 and the rotary kiln 13 is adjustable via the tertiary air slide 2 and the combustion air supply slide 4,
  • the stucco fuels are fed to a combustion chamber in a rotary kiln.
  • the combustion chamber is additionally combustion air, which is passed through a Vorverbrennsch and Tertiar Kunststoff supplied from a clinker cooler a cement manufacturing plant.
  • fly-by fuel is supplied to the pre-combustion chamber.
  • preheated raw meal or a mineral component are supplied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Incineration Of Waste (AREA)
  • Furnace Details (AREA)

Abstract

Selon l'invention, des matières combustibles en morceaux sont acheminées dans une chambre de combustion à l'intérieur d'un cylindre rotatif pour être brûlées. De l'air de combustion passant par une chambre de précombustion et de l'air tertiaire provenant d'un refroidisseur de clinker d'une installation de fabrication de ciment sont en outre acheminés dans la chambre de combustion. Un combustible dispersible est par ailleurs acheminé dans la chambre de précombustion. De la farine crue préchauffée ou un composant minéral sont acheminés pour réguler la température dans la chambre de précombustion et dans la chambre de combustion à l'intérieur du cylindre rotatif.
PCT/AT2009/000019 2008-02-04 2009-01-22 Procédé et installation pour brûler une matière combustible en morceaux Ceased WO2009097636A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA173/2008 2008-02-04
AT1732008 2008-02-04

Publications (2)

Publication Number Publication Date
WO2009097636A2 true WO2009097636A2 (fr) 2009-08-13
WO2009097636A3 WO2009097636A3 (fr) 2009-10-29

Family

ID=40846031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2009/000019 Ceased WO2009097636A2 (fr) 2008-02-04 2009-01-22 Procédé et installation pour brûler une matière combustible en morceaux

Country Status (2)

Country Link
AT (1) AT10747U1 (fr)
WO (1) WO2009097636A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3108160A1 (fr) * 2020-03-10 2021-09-17 Vinci Environnement Procede de production de chaleur a partir de combustibles solides de recuperation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179263A (en) * 1976-10-29 1979-12-18 Perlmooser Zementwerke Aktiengesellschaft Process for the utilization of waste substances and device for carrying out the process
EP0162215B1 (fr) * 1984-03-27 1989-08-09 Alexander Grisar Procédé pour la mise au rebut de déchets combustibles
US4958578A (en) * 1987-01-30 1990-09-25 Phillips Petroleum Company Drummed waste incineration
WO2001009548A1 (fr) * 1999-07-30 2001-02-08 F.L. Smidth & Co. A/S Procede et appareil d'incineration de dechets combustibles lors de la production de clinker
KR101228419B1 (ko) * 2004-05-10 2013-01-31 에프엘스미쓰 에이/에스 연소성 폐기물을 소각하는 방법 및 장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3108160A1 (fr) * 2020-03-10 2021-09-17 Vinci Environnement Procede de production de chaleur a partir de combustibles solides de recuperation

Also Published As

Publication number Publication date
AT10747U1 (de) 2009-09-15
WO2009097636A3 (fr) 2009-10-29

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