EP0997686B1 - Dispositif pour le traitement par oxydation thermique de résidus solides, liquides et gazeux produits par les abattoirs et les unités d'equarrissage - Google Patents
Dispositif pour le traitement par oxydation thermique de résidus solides, liquides et gazeux produits par les abattoirs et les unités d'equarrissage Download PDFInfo
- Publication number
- EP0997686B1 EP0997686B1 EP99402660A EP99402660A EP0997686B1 EP 0997686 B1 EP0997686 B1 EP 0997686B1 EP 99402660 A EP99402660 A EP 99402660A EP 99402660 A EP99402660 A EP 99402660A EP 0997686 B1 EP0997686 B1 EP 0997686B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- furnace
- burner
- axis
- expressed
- fats
- 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
Links
Images
Classifications
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/10—Combustion in two or more stages
- F23G2202/103—Combustion in two or more stages in separate chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/12—Sludge, slurries or mixtures of liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/20—Medical materials
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- 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
- F23G2209/262—Agricultural waste
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- 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
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- 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
- F23G2900/54402—Injecting fluid waste into incinerator
Definitions
- the dehydration and conditioning of the flours produces fumes which are, in fact, the aqueous part of the charge collected in the form of vapor more or less charged with fats carbonated and in highly odorous volatile compounds.
- This vapor phase represents approximately 40% of the initial weight and must be oxidized at high temperature.
- Part of the fat is collected at the outlet of the cooker and another part, after extraction by pressing of the solid residue.
- the solid phase partially dehydrated and defatted, represents 30 to 40% of the incoming charge. Insofar as it comes from contaminated animals declared unfit for recycling in the cattle food chain, it must be incinerated.
- High calorific fats can be used as an auxiliary fuel in the heat treatment device.
- the present invention is based on a oven incinerator type device according to the preamble of claim 1 as described in WO 89/12783.
- the interior of the oven is lined with refractory products, bricks or concrete, to insulate the walls and resist high temperatures.
- the hearth is rotated by means of rollers or by chain and gear.
- Solid waste is introduced at the facade by screw or pusher. It's in also facade which are injected the liquid and gaseous effluents, as well as the combustion air.
- the regular and continuous rotation of the furnace causes the mass of solid waste as soon as it introduction and during combustion in a permanent reversal movement, accompanied by mixing and fractionation of the mass which allows the waste to be exposed, permanently renewed, to the radiation of the refractory lining and to the combustion air, of which depends on the activation of combustion.
- the present invention relates to a device for injecting combustion air, as well as other fluids, which leads to perfect control of the internal aerodynamics of the oven, allows a distribution of the oxygen in the air at the level of the solids load and thereby overcomes the drawbacks and defects of the known devices, linked, as indicated above, to a distribution random combustion air.
- combustion is complete at the outlet of the rotary kiln and the negligible unburnt content, both in gases and in slag.
- the device used consists of a multifluid member, hereinafter designated combustor, whose geometric and energetic characteristics as well as the positioning on the front of the oven constitute the material of the invention.
- the combustor is presented as a multiple inlet and flow injection nozzle parallel, of the tube-in-tube type, which receives all the fluids admitted into the furnace separately, know: liquid or gaseous support fuel, liquid effluents, gaseous effluents, air atomization and combustion air, to inject them in a single jet, strictly flowing axial in the furnace.
- liquid or gaseous support fuel liquid effluents, gaseous effluents, air atomization and combustion air, to inject them in a single jet, strictly flowing axial in the furnace.
- the geometric characteristics of the combustor are dependent on those of the Rotary kiln; as will be explained below.
- the axis of the combustor is offset from the axis of the rotary oven with a distance depending on the diameter of the oven and an angle related to the speed of rotation.
- the device combines a succession of elements whose conjunction achieves the implementation work of the process, as indicated in Figures 1 and 2 attached.
- FIG. 1 shows schematically the device of the invention in longitudinal section.
- the rotary kiln (1) inclined at an angle ⁇ to the horizontal and of internal diameter D, is supplied on the front with solids to be incinerated by the screw (2) and with active fluids by the combustor (3). It opens at the other end into the fixed afterburner (4). Upstream, the solid residues (5) are brought into a storage (6), then distributed by a hopper recovery screw (7) to the screw (2).
- the liquid effluents (8) are stored in the tank (9), then admitted by pumping to the fuel (3).
- the combustor (3) also receives compressible fluids, such as: atomizing air (10), gaseous or mist effluents (11), combustion air (12).
- the slag (13) is collected under the post-combustion chamber (4) and the combustion gases (14) escape at the top towards the treatment of the fumes.
- Figure 2 shows schematically a front view, facade side, of the rotary kiln (1). It specifies the position of the burner (3) and the solid screw (2), as well as the direction of rotation of the oven (1).
- the radial axis of the combustor (3) makes an angle ⁇ relative to the vertical, depending on the oven rotation speed (1).
- this angle is close to 20 °.
- the auxiliary fuel consists of animal fats with high calorific value, extracted during the flour making process.
- the condition G ⁇ 60 W must be fulfilled, that is: G ⁇ 410 Newton.
- the device can be used for other applications which are not outside the scope of the invention.
- the device makes it possible to incinerate gaseous and liquid effluents simultaneously, some of these effluents with appreciable calorific value being able to be used as energy supply of support.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Description
- Les farines impropres à la consommation animale.
- Les graisses et les boues grasses du traitement des effluents de l'usine.
- Les buées de déshydratation et de cuisson.
- Broyage
- Déshydratation dans un cuiseur chauffé à la vapeur
- Pressage et conditionnement des farines
Les scories (13) sont recueillies sous la chambre de post-combustion (4) et les gaz de combustion (14) s'échappent à la partie supérieure vers le traitement des fumées.
G est le débit de quantité de mouvement axial ou poussée de réaction ou impulsion du combusteur, exprimé en Newton.
- 950 Kg/h de farines animales, collectées en service public ou produites pour partie in situ.
- 2500 Kg/h de buées de déshydratation provenant de cuiseurs à vapeur.
- 400 Kg/h de déchets solides divers, tels que soies de porcs, sciures et emballages souillés, boues grasses d'épuration.
- Pour l'air de combustion (12) : 9000 Nm3/h à 600 mmCE. (à 6 kPa)
- Pour l'air d'atomisation (10) : 1500 Nm3/h à 700 mbars. (à 70 kPa)
- Pour les buées (11) : 2000 Nm3/h à 100 mmCE. (à 1 kPa)
Claims (5)
- Dispositif du type incinérateur à four (1) rotatif pour la destruction de résidus du type farines animales, graisses et buées de déshydratation, comprenant :Un combusteur (3) qui reçoit la totalité des fluides actifs, tels que : air d'atomisation (10), air de combustion (12), combustible de soutien éventuel, buées résiduaires (11), graisses et liquides résiduaires (8) et les transfert dans le four (1) rotatif, en un jet unique à écoulement strictement axial, parallèle à l'axe du four (1);Une vis (2) pour l'alimentation continue du four (1) en résidus solides broyés (5); etl'impulsion axiale G du combusteur (3), exprimée en Newton, qui est reliée à la puissance thermique W du four (1), exprimée en MW, par la condition G ≥ 60,W.
- Dispositif, selon la revendication 1, caractérisé en ce que le four est cylindrique et que la position du combusteur (3), définie par la hauteur H de son axe horizontal au-dessus de l'axe de rotation du four (1) de diamètre intérieur D, qui satisfait à la condition H = 0,3 D.
- Dispositif, selon les revendications 1 et 2, caractérisé par le fait que l'axe radial du combusteur (3) fait un angle β = 20° avec l'axe vertical, les dits axes par le centre de la façade du four (1).
- Dispositif du type incinérateur à four (1) fixe pour la destructione de résidus du type graisses et buées de déshydratation, caractérisé par un combusteur (3) qui reçoit la totalité des fluides actifs, tels que: air d'atomisation (10) , air de combustions (12), combustible de soutien éventuel, buées résiduaires (11), graisses et liquides résiduaires (8) et les transfert dans le four (1) fixe, en un jet unique à écoulement strictement axial, parallèle à un axe longitudinal du four (1), et par l'impulsion axiale G du combusteur (3), exprimée en Newton, qui est reliée à la puissance thermique W du four (1), exprimée en MW, par la condition G ≥ 60.W.
- Dispositif selon la revendication 4, caractérisé par le fait que l'axe radial du combusteur (3) fait un angle β = 0° avec l'axe vertical, lesdits axes passant par le centre de la façade du four (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9813676A FR2785366B1 (fr) | 1998-10-30 | 1998-10-30 | Dispositif pour le traitement par oxydation thermique de residus solides, liquides ou gazeux produits par les abattoirs et les unites d'equarrissage |
FR9813676 | 1998-10-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0997686A1 EP0997686A1 (fr) | 2000-05-03 |
EP0997686B1 true EP0997686B1 (fr) | 2004-09-29 |
Family
ID=9532208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99402660A Expired - Lifetime EP0997686B1 (fr) | 1998-10-30 | 1999-10-26 | Dispositif pour le traitement par oxydation thermique de résidus solides, liquides et gazeux produits par les abattoirs et les unités d'equarrissage |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0997686B1 (fr) |
AT (1) | ATE278157T1 (fr) |
DE (1) | DE69920625D1 (fr) |
FR (1) | FR2785366B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1248041A3 (fr) * | 2001-04-04 | 2002-12-18 | Adolfo Fernandez Mesa | Procédé de destruction thermique |
CN105716093B (zh) * | 2016-03-14 | 2017-10-03 | 哈尔滨工业大学 | 一种可同时处理多形态危险废物的熔融装置 |
CN109708125A (zh) * | 2019-02-14 | 2019-05-03 | 长沙中硅水泥技术开发有限公司 | 一种处理砷碱渣及低熔点重金属废渣组合式熔炼炉 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4797087A (en) * | 1985-07-15 | 1989-01-10 | American Combustion, Inc. | Method and apparatus for generating highly luminous flame |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH409210A (de) * | 1964-06-05 | 1966-03-15 | Keller Otto | Verbrennungsanlage für Abfallprodukte |
DE1551845A1 (de) * | 1967-07-01 | 1970-04-23 | Keller Peukert Gmbh | Drehtrommel-Muellverbrennungsanlage |
FR2605715B1 (fr) * | 1986-10-23 | 1989-12-01 | Tunzini Nessi Entreprises Equi | Dispositif d'incineration des dechets industriels |
JPH03505910A (ja) * | 1988-06-17 | 1991-12-19 | アメリカン コンバスション インコーポレーテッド | 廃棄物処理の方法および装置 |
US5188042A (en) * | 1991-04-18 | 1993-02-23 | Praxair Technology, Inc. | Fluid waste burner system |
US5724901A (en) * | 1995-11-02 | 1998-03-10 | Gaz Metropolitan And Company Limited | Oxygen-enriched gas burner for incinerating waste materials |
-
1998
- 1998-10-30 FR FR9813676A patent/FR2785366B1/fr not_active Expired - Fee Related
-
1999
- 1999-10-26 AT AT99402660T patent/ATE278157T1/de not_active IP Right Cessation
- 1999-10-26 DE DE69920625T patent/DE69920625D1/de not_active Expired - Fee Related
- 1999-10-26 EP EP99402660A patent/EP0997686B1/fr not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4797087A (en) * | 1985-07-15 | 1989-01-10 | American Combustion, Inc. | Method and apparatus for generating highly luminous flame |
Also Published As
Publication number | Publication date |
---|---|
EP0997686A1 (fr) | 2000-05-03 |
FR2785366A1 (fr) | 2000-05-05 |
ATE278157T1 (de) | 2004-10-15 |
DE69920625D1 (de) | 2004-11-04 |
FR2785366B1 (fr) | 2001-02-23 |
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