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WO2000075568A1 - Procede et installation pour la calcination in situ de depots d'ordures - Google Patents

Procede et installation pour la calcination in situ de depots d'ordures Download PDF

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Publication number
WO2000075568A1
WO2000075568A1 PCT/CH2000/000264 CH0000264W WO0075568A1 WO 2000075568 A1 WO2000075568 A1 WO 2000075568A1 CH 0000264 W CH0000264 W CH 0000264W WO 0075568 A1 WO0075568 A1 WO 0075568A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
gases
line
combustion
outflow
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/CH2000/000264
Other languages
German (de)
English (en)
Inventor
Jozef Hanulik
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.)
Deco Hanulik AG
Original Assignee
Deco Hanulik 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 Deco Hanulik AG filed Critical Deco Hanulik AG
Priority to EP00922401A priority Critical patent/EP1183484A1/fr
Priority to AU42830/00A priority patent/AU4283000A/en
Publication of WO2000075568A1 publication Critical patent/WO2000075568A1/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
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
    • 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
    • F23G5/34—Incineration of waste; Incinerator constructions; Details, accessories or control therefor the waste being burnt in a pit or arranged in a heap for combustion
    • 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
    • F23G5/50—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/10—Arrangement of sensing devices
    • F23G2207/101—Arrangement of sensing devices for temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/10—Arrangement of sensing devices
    • F23G2207/103—Arrangement of sensing devices for oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/10—Arrangement of sensing devices
    • F23G2207/113—Arrangement of sensing devices for oxidant supply flowrate

Definitions

  • Waste incineration plants are combated, in more rural areas and in developing countries the waste becomes
  • the main thing is stored in landfills and sewage sludge on
  • waste disposal in waste incineration plants comes from financial sources
  • Waste incineration plants to about USD 50-100 / t. There are also plant costs of approximately USD 100 million for a plant with a capacity of 150,000 t / annum. Even if waste incineration plants can be built in some developing countries without corresponding gas cleaning regulations, waste incineration in such plants is still too expensive. In such cases, costs of around USD 20-50 / t are assumed.
  • landfill remains the only economically feasible solution.
  • a large number of sometimes illegal landfills of enormous dimensions are emerging, which are still growing rapidly.
  • methods are known for in-situ incineration of landfills. Such processes have significant advantages.
  • the in-situ incineration of landfills can significantly reduce the volume of the landfill, the total emissions in the area of the landfill can be reduced and the reuse of the land of a former landfill can be done much earlier.
  • landfill gas emissions are a major problem. The harmful effects of these emissions are known and are being combated accordingly, especially in industrialized countries. For this purpose, landfills are often covered and the landfill gas is collected. Captured landfill gas can be used thermally and disposed of without damage. To remove the halogenated hydrocarbons in particular, these gases must be flared using high-temperature flares or mufflers. The combustion temperature should be around 1200 ° C and the residence time at least 0.3 seconds. The predominant methane gas can be used. Despite the use of methane gases, the costs of gas collection, gas treatment and flaring of the halogenated hydrocarbons are too high for most landfills in developing countries.
  • Flaring and exhaust gas cleaning can be combined with this.
  • the direction of combustion and the depth of combustion of the method according to the invention can also be particularly precise monitor and manage. Thanks to the layer-by-layer combustion, sewage sludge can then be pumped into these layers, which can then be dried and burned in the subsequent combustion of an overlying layer.
  • Figure 1 is a schematic representation of a landfill in section and various plant elements for performing the inventive method
  • Figure 2 is a plan drawing of the arrangement of an oxidizing gas supply line and a plurality of suction lines arranged equidistantly therefrom.
  • Landfill 1 shown in the drawing is a group landfill, which is shown here completely filled. At one point in landfill 1 there is one Oxidation supply line 2 hammered. At a distance from the oxidizing gas supply line 2, a suction line 3 m is driven into the landfill 1 at least approximately the same depth m.
  • the oxidizing gas supply line 2 is equipped with an electric, gas or oil-operated heating device 4.
  • the arrow 5 symbolizes the supply of
  • Oxidation gas which is blown into the oxidation gas supply line. This can be done for example by means of a corresponding blower 6.
  • the exhaust gas can also be shown as flared, flared or washed, with 11 symbolizing an exhaust gas purification system. If a blower 8 is used, it is arranged after the filter 9.
  • the oxidizing gas supply line 2 and the outflow lines 3 can be pulled up relative to the upper level N of the landfill 1, as indicated by the arrows 12.
  • each outflow line 3 can also be used
  • Oxidation gas supply line 2 serve and vice versa.
  • the oxidation supply line as a circle is purely symbolic, while the outflow lines 3 are shown as a point.
  • oxidizing gas is introduced into line 2.
  • Oxidizing gas is preferably air.
  • the heating device 4 allows the inflowing
  • Landfill materials at the bottom of the Oxidation supply line 2 is possible.
  • This ignition is facilitated by the landfill gas in landfill 1, which is mainly methane gas.
  • This methane gas also carries the risk of a possible explosion. This risk of explosion is particularly great during the start of the process until controlled combustion takes place. If the mine gas contains more than 5% oxygen, there is a considerable risk of explosion.
  • an ignition device for example a spark plug at the lower end of the oxidation gas supply line 2
  • the initial ignition can take place early, so that the risk of a major explosion can be excluded.
  • the pump 6 will supply normal air without the addition of oxygen, and the same amount of gas 5 will be introduced volumetrically via the oxidizing gas supply line 6 as will emerge volumetrically via the outflow line 3. This is shown in the figure with V ON and V OFF. This volumetric monitoring of the introduced gases and the outflowing gases is maintained during the entire process. The aim is to carry out the combustion so slowly and specifically that laminar flow conditions exist which are sufficient to maintain a glowing front with diffusion-controlled combustion. This can be ensured very easily by monitoring the gas balance and gas quality. Becomes too much oxidation gas supplied, both unused oxygen and unburned methane gas flow out.
  • Oxidation gases and the outflowing combustion gases are monitored. This is shown in the drawing with T ON and T OFF. The information gained from this allows the exact course of the burn to be tracked. The closer the source of the fire approaches the outflow line 3, the more the temperature T AUS will rise. As soon as this temperature exceeds a predetermined maximum, you will be switched to one of the
  • combustion area a for example
  • Combustion area b uses the exhaust pipe with the coordinates D / VI etc. But it is quite possible that
  • volumetric equality is maintained, i.e. the volume of the imprinted
  • the amount of oxidizing gas is kept equal to the sum of the amounts of exhaust gas extracted. It goes without saying that inactive outflow or oxidation supply lines can be closed. This can be done by check valves on the lines themselves or by means of a slide on the subsequent connected network.
  • the proportion of oxidizing gases is also monitored. This is symbolically represented in the drawing by% 0 2 ON and% 0 2 OFF.
  • Oxidation gases i.e. the air, is normally the
  • Oxygen content in the range between 3% and 5% 0 2 intervention must be made by the control system. This can consist in introducing less air per unit of time while maintaining the volume on the suction side or also by switching to a more distant suction line 3, assuming that practically complete oxidation has already taken place in the current fire area.
  • the oxidizing gas supply line is additionally heated by means of the heating device 4. This measure may be necessary if the source of the fire reaches a particularly damp region.
  • the fire temperature can be increased by the addition of additional thermal energy, which improves the evaporation of the moisture.
  • the method according to the invention makes it possible to pump sewage sludge into the resulting cavities in pumpable consistency into the burnt-off layers. This has the advantage that the methane gas released from the sewage sludge during further decomposition can be used, while the other gases can flow out in a controlled manner and can be flared.
  • the sewage sludge is also burned. This method is considerably less dangerous than discharging the sewage sludge onto fields, since the heavy metal contamination, which is always present to a small extent, is removed from the area of the food cycle.
  • the extracted gases can be treated subsequently in various ways and in different stages. It certainly makes sense to attach a filter that can be used to filter out solid particles from the gases.
  • a filter that can be used to filter out solid particles from the gases.
  • Filter 9 represented symbolically. The vacuum pump or that
  • Suction fan 8 is through the filter 9 from dust, soot and
  • Lean gases can contain fractions of the following gases in particular: CO, Co 2 / CH 2 / H 2 0, as well as organic vapors from the drying of the sewage sludge as well as from the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

On introduit dans une décharge (1) une conduite d'amenée de gaz oxydant, ainsi qu'une ou plusieurs conduites d'aspiration (3). L'air est alimenté (5) via la conduite d'amenée de gaz oxydant (2) au moyen d'un ventilateur soufflant (6). Au moyen d'un ventilateur d'air sortant (8), le gaz (7) peut être aspiré de la conduite d'aspiration (3). Au moyen d'un dispositif de chauffe (4), le gaz oxydant (5) introduit est préchauffé jusqu'à allumage final. La combustion est réglée par contrôle volumétrique des gaz introduits (Vein) et des gaz expulsés (Vaus). On contrôle en outre la température des gaz introduits (Tein) et des gaz expulsés (Taus), ainsi que la teneur en oxygène des gaz oxydants soufflés (5) et des gaz sortants. Les gaz sortants peuvent être soumis à un post-traitement au moyen d'un filtre (9), d'une combustion à la torche (10) ou d'un système d'épuration des gaz brûlés (11). Le procédé précité est particulièrement économique, avec réduction du temps de traitement ainsi que des émissions, à la fois, de bruits et de gaz. Du fait de son caractère économique, le procédé peut en outre être mis en oeuvre dans des pays en voie de développement.
PCT/CH2000/000264 1999-06-02 2000-05-12 Procede et installation pour la calcination in situ de depots d'ordures Ceased WO2000075568A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00922401A EP1183484A1 (fr) 1999-06-02 2000-05-12 Procede et installation pour la calcination in situ de depots d'ordures
AU42830/00A AU4283000A (en) 1999-06-02 2000-05-12 Method and installation for incinerating deposited refuse in situ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1033/99 1999-06-02
CH103399 1999-06-02

Publications (1)

Publication Number Publication Date
WO2000075568A1 true WO2000075568A1 (fr) 2000-12-14

Family

ID=4200888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2000/000264 Ceased WO2000075568A1 (fr) 1999-06-02 2000-05-12 Procede et installation pour la calcination in situ de depots d'ordures

Country Status (3)

Country Link
EP (1) EP1183484A1 (fr)
AU (1) AU4283000A (fr)
WO (1) WO2000075568A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007066125A3 (fr) * 2005-12-10 2007-11-15 Univ Edinburgh Procede et appareil pour decontaminer le sol
CN107448954A (zh) * 2017-08-16 2017-12-08 广东海翔教育科技有限公司 一种节能环保垃圾焚烧炉

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664278A (en) * 1970-09-08 1972-05-23 Gerhard Steen Method and apparatus for incinerating solid materials
DE2317441A1 (de) * 1973-04-06 1974-10-24 Alumko Ag Verfahren und vorrichtung zum verhindern der umweltverschmutzung
GB1420827A (en) * 1972-04-06 1976-01-14 Messerschmitt Boelkow Blohm Process and apparatus for the incineration of refuse
WO1992000491A1 (fr) * 1990-06-27 1992-01-09 Nobuyasu Hasebe Procede d'incineration de dechets solides, procede de traitement de dechets solides et procede de traitement de gaz emis par incineration de ces dechets
US5159885A (en) 1990-06-27 1992-11-03 Nobuyasu Hasebe Process for incinerating solid wastes and a process for treating solid wastes and a process for treating gases generated through incineration of these wastes
US5181795A (en) 1992-08-19 1993-01-26 Circeo Jr Louis J In-situ landfill pyrolysis, remediation and vitrification
US5228804A (en) * 1992-06-25 1993-07-20 Balch Thomas H Method and apparatus for hydrocarbon-contaminated soil remediation
US5261765A (en) * 1990-02-05 1993-11-16 Hrubetz Environments Services, Inc. Method and apparatus for heating subsurface soil for decontamination
US5276253A (en) 1992-09-09 1994-01-04 Circeo Jr Louis J In-situ remediation and vitrification of contaminated soils, deposits and buried materials

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664278A (en) * 1970-09-08 1972-05-23 Gerhard Steen Method and apparatus for incinerating solid materials
GB1420827A (en) * 1972-04-06 1976-01-14 Messerschmitt Boelkow Blohm Process and apparatus for the incineration of refuse
DE2317441A1 (de) * 1973-04-06 1974-10-24 Alumko Ag Verfahren und vorrichtung zum verhindern der umweltverschmutzung
US5261765A (en) * 1990-02-05 1993-11-16 Hrubetz Environments Services, Inc. Method and apparatus for heating subsurface soil for decontamination
WO1992000491A1 (fr) * 1990-06-27 1992-01-09 Nobuyasu Hasebe Procede d'incineration de dechets solides, procede de traitement de dechets solides et procede de traitement de gaz emis par incineration de ces dechets
US5159885A (en) 1990-06-27 1992-11-03 Nobuyasu Hasebe Process for incinerating solid wastes and a process for treating solid wastes and a process for treating gases generated through incineration of these wastes
US5228804A (en) * 1992-06-25 1993-07-20 Balch Thomas H Method and apparatus for hydrocarbon-contaminated soil remediation
US5181795A (en) 1992-08-19 1993-01-26 Circeo Jr Louis J In-situ landfill pyrolysis, remediation and vitrification
US5276253A (en) 1992-09-09 1994-01-04 Circeo Jr Louis J In-situ remediation and vitrification of contaminated soils, deposits and buried materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007066125A3 (fr) * 2005-12-10 2007-11-15 Univ Edinburgh Procede et appareil pour decontaminer le sol
US8132987B2 (en) 2005-12-10 2012-03-13 University Court Of The University Of Edinburgh Method for remediating contaminated land
CN107448954A (zh) * 2017-08-16 2017-12-08 广东海翔教育科技有限公司 一种节能环保垃圾焚烧炉

Also Published As

Publication number Publication date
AU4283000A (en) 2000-12-28
EP1183484A1 (fr) 2002-03-06

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