FR2480305A1 - Anaerobic digester installation to produce methane from organic waste - can be automatically controlled for continuous large scale prodn. - Google Patents

Anaerobic digester installation to produce methane from organic waste - can be automatically controlled for continuous large scale prodn. Download PDF

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Publication number
FR2480305A1
FR2480305A1 FR8008669A FR8008669A FR2480305A1 FR 2480305 A1 FR2480305 A1 FR 2480305A1 FR 8008669 A FR8008669 A FR 8008669A FR 8008669 A FR8008669 A FR 8008669A FR 2480305 A1 FR2480305 A1 FR 2480305A1
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Prior art keywords
digester
channel
installation
hopper
worm
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French (fr)
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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
    • C12M33/16—Screw conveyor
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
    • C12M41/24—Heat exchange systems, e.g. heat jackets or outer envelopes inside the vessel
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M45/00—Means for pre-treatment of biological substances
    • C12M45/02—Means for pre-treatment of biological substances by mechanical forces; Stirring; Trituration; Comminuting
    • 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
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Genetics & Genomics (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The installation comprises a digester channel located beneath one or more gasometers. Raw material from a reception hopper is fed through a grinder into one end of the digester channel. The channel contains a coaxial screw feeder to move material along the channel. A sealable valve is fitted between the hopper outlet and the channel entry. The material in the channel is kept at fermentation temp. by a hot water circulation system. At the outlet end of the channel, fermented material is evacuated by a discharge conveyor. The rate of feed of raw material into the through the channel is pref. controlled automatically. The screw feeder is pref. reversible and its drive is programmed for periodic reversals prior to advancing the material towards the discharge end of the channel. The sealable valve is pref. actuated by automatically controlled, fluid power cylinders. The installation is intended for the prodn. of methane for power and heating. The operation of the installation is continuous and can be automatically controlled.

Description

L'objet de l'invention concerne un dispositif de production mét@ane en continu et entièrement automatique. The object of the invention relates to a met @ ane continuous and fully automatic production device.

Il est destine aux particuliers comme aux entreprises. It is intended for individuals and businesses.

Jans les installations connues de ce genre, on employait des systèmes de fermentation sans régulation, avec un rendement moindre et necessitant une main d'oeuvre astreignante.In known installations of this kind, fermentation systems were used without regulation, with a lower yield and requiring a demanding workforce.

Le dispositif suivant l'invention donne la possibilité de méthaniser automatiquement des produits de fermentation.The device according to the invention gives the possibility of automatically methanising fermentation products.

Il est constitué d'lm digesteur, d'un ou plusieurs gazomètres d'une vis sans fin, d'une bande tranporteuse et d'un broyeur.It consists of a digester, one or more gasometers, a worm screw, a conveyor belt and a crusher.

Sur le dessin annexe donné à titre d'exemple non limitatif d'une des formes de réalisation de 11 objet de l'invention l'unité de production méthane est représentée vue en coupe. In the accompanying drawing given by way of nonlimiting example of one of the embodiments of the object of the invention, the methane production unit is shown in section.

L'unité de production méthane est constituée, d'un quail de déchargement, manutention 2, chargement de la trémie 3 du broyeur, entrée des produits 4, remplissage en eau du diges teur9, vidage de l'air par purges automatiques 12 et trop plein 21. Le clapet d'admission des matières s'ouvre, simul tanément le broyeur et la vis 6 du digesteur sont mis en service Au bout de 6 minutes le broyeur et la vis du diges teur s'arrêtent, le digesteur est plein, le clapet 25 se ferme. Ouverture de la vanne d'admission d'eau chaude dans26 le système de mise à température du digesteur par parois 7 chauffantes 8 bis, 10, 13 , ou tube central de la vis sans fin. Une régulation automatique maintiendra cette-température 27, ainsi que des thermomètres il et des sondes 17 de prelèvement. The methane production unit is made up of an unloading quail, handling 2, loading the hopper 3 from the crusher, product entry 4, filling the digester with water 9, emptying the air by automatic purges 12 and too full 21. The material intake valve opens, simultaneously the grinder and the digester screw 6 are put into service. After 6 minutes the grinder and the digester screw stop, the digester is full, the valve 25 closes. Opening of the hot water inlet valve in the digester temperature system by 7 heating walls 8 bis, 10, 13, or central tube of the worm. Automatic regulation will maintain this temperature 27, as well as thermometers 11 and sampling probes 17.

Toutes les heures, la vis du digesteur sera mise en service automatiquement 5, 24, pendant 20 secondes, elle éxécutera un tour dans le sens inverse aux aiguilles dtlme montre et un tour dans le sens des aiguilles d'une montre. Every hour, the digester screw will be put into service automatically 5, 24, for 20 seconds, it will execute one turn anticlockwise and one turn clockwise.

au bout de 12 heures de fermentation le gaz commence à sa dégager et à remplir le gazomètre 19. Ce dégagement de gaz dans le temps est variable, il est fonction de la nature des végétaux introduits dans la trémie. Dès que le gazomè- tre est plein le compresseur 28 se met en service et charge le contenaire prévu à cet effet ( joint de dilatation 18 pour gazomètre)-. Ce (ou ces) contenaire. est plein d'eau ceci pour éviter qu'il n'y est de l'air à l'intérieur 2s. at the end of 12 hours of fermentation the gas begins to release it and to fill the gasometer 19. This release of gas over time is variable, it depends on the nature of the plants introduced into the hopper. As soon as the gasometer is full, the compressor 28 is put into service and loads the container provided for this purpose (expansion joint 18 for gasometer) -. This (or these) container. is full of water this to avoid there being air inside 2s.

Le gaz chasse cette eau jusqu'a concurrence du volume du contenaire , Dès que le contenaire est plein la vanne d1évacua- tion d'eau se ferme. Un manostat 15 maintient en permanence une pression minimum de un bar dès que la pression atteint ce stade la vanne de départ gaz se ferme.The gas flushes this water up to the volume of the container. As soon as the container is full, the water evacuation valve closes. A pressure switch 15 permanently maintains a minimum pressure of one bar as soon as the pressure reaches this stage the gas flow valve closes.

Un manomètre de 0 à 12 bars permet le contrôle visuel du contenaire . Lorsque le gazomètre n'enregistre plus de dégagement de gaz pendant une durée supérieure à une heure l'installation se vide des produits qui une contiennent plus de gaz. La vis sera mise en service, le produit se déversera dans la trémie 8 en bout du digesteur. Simultanément le tapis élévateur 22 extraira ce produit pour le déverser dans une benne placée au bout de l'installation.A pressure gauge from 0 to 12 bars allows visual control of the container. When the gasometer does not record any more gas evolution for a period longer than one hour, the installation empties itself of the products which contain more gas. The screw will be put into service, the product will pour into the hopper 8 at the end of the digester. Simultaneously the lifting belt 22 will extract this product to pour it into a bucket placed at the end of the installation.

Le cycle se renouvelle si la tremie est pleine, la trémie doit toujours etre maintenue pleine pour. obtenir un rendement optima. The cycle is repeated if the hopper is full, the hopper must always be kept full for. obtain optimum performance.

L'eau chaude est donnée par des capteurs solaires ou une chaudière auxiliaire 14.  Hot water is supplied by solar collectors or an auxiliary boiler 14.

Evacuation des boues 20. Digesteur 16  Sludge disposal 20. Digester 16

Claims (5)

REVENDICATIONS 10 dispositif de méthanisation destiné aux entreprises comme aux particuliers, à marche continue, à grands rendements, à régulation automatique, constitué d'un digesteur d'un ou plusieurs gazomètres adaptés a la partie supérieure du digesteur, d'une vis sana fin à déplacement programmé avant, arrière, d'une bande transporteuse pour évacuation des déchets, d'un broyeur, dtun clapet d'ad- mission hermétique, dune trémie, d'un tube-axial(vis sans fin) avec circulation d'eau chaude pour mise en température de fermentation. 10 anaerobic digestion device intended for businesses and individuals, with continuous operation, with high yields, with automatic regulation, consisting of a digester of one or more gasometers adapted to the upper part of the digester, of a fine displacement screw programmed front, rear, a conveyor belt for waste evacuation, a shredder, a hermetic admission valve, a hopper, an axial-tube (worm) with circulation of hot water for setting fermentation temperature. 20 Dispositif suivant la revendication 1 se caractérisant par le fait que ce procédé de méthanisation est à marche continue, à régulation automatique et à grands rendements, qu',il est destiné aux entreprises comme aux particuliers. 20 Device according to claim 1 characterized in that this methanization process is continuous operation, automatic regulation and high yields, that it is intended for businesses and individuals. 30 Dispositif suivant la revendication 1 se caractérisant par.le fait, qu'il est constitué d'un digesteur avec à sa partie supérieure un ou plusieurs gazomètres, d'une vis sans fin équipée dtun tube axial avec circulation dteau chaude afin de permettre la fermentation efficace des produits. 30 Device according to claim 1 characterized by.the fact that it consists of a digester with at its upper part one or more gasometers, an endless screw equipped with an axial tube with circulation of hot water in order to allow the efficient product fermentation. 4 Dispositif suivant la revendication 1 se caractérisant par le fait que, la vis sans fin, par un movement programme avant, arrière, permet 10 la fermentation complète et rapide de tous les produits , 20 de casser las croutes qui se forment en surface du digesteur et 3. l'évacuation complète des produits vers la bande transporteuse.  4 Device according to claim 1 characterized in that, the worm, by a program movement forward, backward, allows 10 complete and rapid fermentation of all products, 20 to break the crusts that form on the surface of the digester and 3. complete evacuation of the products to the conveyor belt. EVENDICATIONS (suite) EVENDICATIONS (continued) 50 Jispositif suivant 3a revendication 1 se caractérisant par le fait que la trémie, possède en son milieu# , un broyeur permettant de déchiqueter les produits pour la fermentation, , cette trémie permet un stockage proportionnel au remplissage du digesteur et alimente régulièrement la vis sans fin 50 Device according to claim 3a 1 characterized in that the hopper, has in its middle #, a grinder for shredding the products for fermentation, this hopper allows storage proportional to the filling of the digester and regularly feeds the worm 60 Dispositif suivant la revendication 1 e caractérisant par le fait que, le clapet d'admission des produits à l'entrée de la vis sans fin, est équipé d'un système à vérin qui permet la réception des produits dans le digesteur et la fermeture hermétique afin d'éviter la sortie des gazs  60 Device according to claim 1 e characterized in that, the product intake valve at the inlet of the worm, is equipped with a jack system which allows the reception of products in the digester and closing hermetic in order to avoid the exit of gases
FR8008669A 1980-04-15 1980-04-15 Anaerobic digester installation to produce methane from organic waste - can be automatically controlled for continuous large scale prodn. Withdrawn FR2480305A1 (en)

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Application Number Priority Date Filing Date Title
FR8008669A FR2480305A1 (en) 1980-04-15 1980-04-15 Anaerobic digester installation to produce methane from organic waste - can be automatically controlled for continuous large scale prodn.

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FR8008669A FR2480305A1 (en) 1980-04-15 1980-04-15 Anaerobic digester installation to produce methane from organic waste - can be automatically controlled for continuous large scale prodn.

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000378A1 (en) * 1982-07-16 1984-02-02 Josef Probst Device for the production of biogas
FR2596772A1 (en) * 1986-04-03 1987-10-09 Cirad PROCESS FOR THE ANAEROBIC DIFFERENTIAL COBIODEGRADATION OF A CELLULOSIC SUBSTRATE AND A SUBSTRATE SUITABLE FOR FERMENTATION, AND APPARATUS FOR CARRYING OUT SAID METHOD
EP0374708A1 (en) * 1988-12-13 1990-06-27 Josef Probst Biogas reactor
FR3053698A1 (en) * 2016-07-11 2018-01-12 Incorporateur -Biogaz Com Sas DEVICE FOR THE PREPARATION OF BIOMASSES INTENDED FOR METHANIZATION AND THE USE THEREOF

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR732738A (en) * 1931-07-23 1932-09-24 Method and device for operating sludge rot chambers
FR987924A (en) * 1943-04-14 1951-08-21 Continuous humification of waste
FR1107340A (en) * 1953-09-18 1955-12-29 Kaiserslautern Guss Armatur <biological> gas installation with supply and discharge wells for treated materials
DE2535756A1 (en) * 1975-08-11 1977-02-24 Hermann Besler Anaerobic fermenter for animal and vegetable waste - producing methane gas and fertiliser acting fermented product
US4121539A (en) * 1977-02-14 1978-10-24 Joseph Terrell Moore Animal enclosure system with waste treatment means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR732738A (en) * 1931-07-23 1932-09-24 Method and device for operating sludge rot chambers
FR987924A (en) * 1943-04-14 1951-08-21 Continuous humification of waste
FR1107340A (en) * 1953-09-18 1955-12-29 Kaiserslautern Guss Armatur <biological> gas installation with supply and discharge wells for treated materials
DE2535756A1 (en) * 1975-08-11 1977-02-24 Hermann Besler Anaerobic fermenter for animal and vegetable waste - producing methane gas and fertiliser acting fermented product
US4121539A (en) * 1977-02-14 1978-10-24 Joseph Terrell Moore Animal enclosure system with waste treatment means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000378A1 (en) * 1982-07-16 1984-02-02 Josef Probst Device for the production of biogas
FR2596772A1 (en) * 1986-04-03 1987-10-09 Cirad PROCESS FOR THE ANAEROBIC DIFFERENTIAL COBIODEGRADATION OF A CELLULOSIC SUBSTRATE AND A SUBSTRATE SUITABLE FOR FERMENTATION, AND APPARATUS FOR CARRYING OUT SAID METHOD
EP0241357A1 (en) * 1986-04-03 1987-10-14 Centre De Cooperation Internationale En Recherche Agronomique Pour Le Developpement (C.I.R.A.D.) Process for the anaerobic differential cobiodegradation of a cellulosic substrate and of a substrate suitable for the fermentation, and apparatus for carrying out this process
EP0374708A1 (en) * 1988-12-13 1990-06-27 Josef Probst Biogas reactor
WO1990006987A1 (en) * 1988-12-13 1990-06-28 Josef Probst Biogas reactor
FR3053698A1 (en) * 2016-07-11 2018-01-12 Incorporateur -Biogaz Com Sas DEVICE FOR THE PREPARATION OF BIOMASSES INTENDED FOR METHANIZATION AND THE USE THEREOF

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