FR2460445A1 - Pulverised charcoal heating burner - has supply silo and burner controls with flue cyclone for ash disposal - Google Patents

Pulverised charcoal heating burner - has supply silo and burner controls with flue cyclone for ash disposal Download PDF

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Publication number
FR2460445A1
FR2460445A1 FR7917442A FR7917442A FR2460445A1 FR 2460445 A1 FR2460445 A1 FR 2460445A1 FR 7917442 A FR7917442 A FR 7917442A FR 7917442 A FR7917442 A FR 7917442A FR 2460445 A1 FR2460445 A1 FR 2460445A1
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France
Prior art keywords
charcoal
hopper
burner
boiler
storage
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Application number
FR7917442A
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French (fr)
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Individual
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Individual
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Publication date
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Priority to FR7917442A priority Critical patent/FR2460445A1/en
Publication of FR2460445A1 publication Critical patent/FR2460445A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C1/00Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air
    • F23C1/10Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air liquid and pulverulent fuel

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

The burner consists of a storage silo (3) filled from a supply line (2). The charcoal is discharged through a metering tube (4) to a feed pipe (5) which receives a supply of combustion air. The feed is connected electrically to controls (6) for the flow of charcoal to the burner box with electrical ignition. It includes a flue gas cyclone (7) which separates the ashes from the charcoal allowing them to drop to the bottom for disposal.

Description

La présente invention concerne les chaudières de chauffage do mestiquescu collectives munies de brûleurs à dispositifs de compression d'air comburant et dont on se propose de réduire la consommation d'hydrocarbures tout en conservant la puissance calorifique nominale, en substituant du charbon de bois pulvérisé à la partie économisée d'hydrocarbures. I1 existe de longue date des chaudières brûlant du charbon de terre pulvérisé mais les installations nécessitent des dispositifs d'allumage, d'alimentation et d'évacuation de cendres compliqués ce qui a limité leur utilisation aux seules grosses centrales industrielles,
L'utilisation de charbon de bois permet une pulvérisation très fine des particules autorisant une fluidisation parfaite du carburant et la simplification des mécanismes d'alimentation et d'inflammation.
The present invention relates to collective domestic heating boilers provided with burners with combustion air compression devices and for which it is proposed to reduce the consumption of hydrocarbons while retaining the nominal calorific power, by substituting pulverized charcoal for the saved part of hydrocarbons. There have long been boilers burning pulverized charcoal, but the installations require complicated ignition, supply and evacuation devices for ash, which has limited their use to large industrial plants only,
The use of charcoal allows a very fine spraying of the particles allowing a perfect fluidization of the fuel and the simplification of the feeding and ignition mechanisms.

L'absence ou la très faible teneur en cendres (1 à 2 %) supprime presque complètement les problèmes d'évacuation des imbrûlés. The absence or very low ash content (1 to 2%) almost completely eliminates the problems of evacuation of unburnt products.

L'augmentation du prix des hydrocarbures intervenue et nrévi- sible a rendu la calorie charbon de bois compétitive avec la calorie pétrole. The increase in the price of hydrocarbons which occurred and was inevitable made the charcoal calorie competitive with the petroleum calorie.

Le dispositif, objet de l'invention, comporte des véhicules capables de transporter le charbon de bois pulvérisé et de l'amener par voie pneumatique vers la trémie de réception et de stockage du client ainsi que de mesurer le poids livré, Les systèmes déjà en service pour les boulangeries étant simplement adaptés aux exien- ces propres au service du charbon de bois. The device, object of the invention, comprises vehicles capable of transporting the pulverized charcoal and of bringing it pneumatically to the customer's receiving and storage hopper as well as of measuring the weight delivered, The systems already in service for bakeries being simply adapted to those specific to the service of charcoal.

La trémie client, lorsaue la place dans la chaufferie est suffisante est unique, sinon on nrévoit deux trémies l'une primaire capable d'un stockage relativement volumineux pour assurer une autonomie de l'ordre d'un mois de fonctionnement et variable avec la puissance de l'installation et la proportion de fuel/charbon de bois adoptée. The customer hopper, when there is enough space in the boiler room, is unique, otherwise there are two hoppers, the primary one capable of relatively large storage to ensure autonomy of around one month of operation and variable with power of the installation and the proportion of fuel / charcoal adopted.

La seconde, située au dessus du brûleur à mazout est de petite taille (une journée de fonctionnement). Un système de transfert auto natique ou semi-automatique permet de remplir la petite trémie à partir de la grande. Le volume de la deuxième trémie chaudière est de l'ordre de 100 à 200 litres. The second, located above the oil burner is small (one day of operation). An automatic or semi-automatic transfer system makes it possible to fill the small hopper from the large one. The volume of the second boiler hopper is around 100 to 200 liters.

Selon une réalisation de l'invention le transfert d'une trémie vers l'autre est obtenu par transport pneumatique. According to one embodiment of the invention, the transfer from one hopper to the other is obtained by pneumatic transport.

Selon une autre réalisation, l'alimentation de la trémie chaudière est obtenue à partir de sac en papier de 50 à 100 litres, vidés directement dans la trémie par un système d'aspiration en circuit clos évitant l'émission de poussière dans la chaufferie et permettant la vidange complète des sacs, leur "rinçage' étant obtenu par un balayage d'air. La trémie équipée d'un agitateur ou de parois mouvantes empêchant la formation de voûte assure un écoulement continu de la poussière de charbon de bois vers un débimètre constitué par un couloir vibrant équipé d'un ou de plusieurs deversoirs de hauteur règlable. Ceci permet le dosage de la quantité de charbon injecté dans l'air aspiré nar le brûleur et injecté dans la chaudière.Certainsmodèles pourront avoir une injection modulable de gazoil en fonction de la présence ou de l'absence de charbon dans la trémie, ce qui assurera un chauffage normal en toutes circonstances. According to another embodiment, the supply to the boiler hopper is obtained from paper bags of 50 to 100 liters, emptied directly into the hopper by a closed-circuit suction system avoiding the emission of dust in the boiler room and allowing complete emptying of the bags, their "rinsing" being obtained by an air sweep. The hopper equipped with an agitator or moving walls preventing the formation of a vault ensures a continuous flow of charcoal dust to a flow meter consisting of a vibrating corridor equipped with one or more weirs with adjustable height. This allows the metering of the quantity of coal injected into the air sucked in by the burner and injected into the boiler. Some models may have a modular injection of diesel in depending on the presence or absence of coal in the hopper, which will ensure normal heating in all circumstances.

Le dessin annexé illustre à titre d'exemple un mode de réalisation du dispositif conforme à la présente invention. The appended drawing illustrates by way of example an embodiment of the device according to the present invention.

Tel au'il est représenté, le dispositif comnorte une trémie de chaudière(3avec son tuyau de remplissage a partir de la trémie de stockage2ou du sac de panier ou de tout autre conteneur ; un dispo (4) sitif de dosage du charbon vers le brûleur à mazout ; un couloir amenant le charbon dans la veine d'air aspiré par le brûleu5; une connection électrique assurant la simultanéité de fonctionnement entre le brûleur et le distributeur de charboA6et enfin une boite à cendres en forme de cyclone(7)pour récupérer les cendres les plus grossières précipitées dans le conduit de fumée.  As shown, the device includes a boiler hopper (3 with its filling pipe from the storage hopper or the basket bag or any other container; a charcoal dosing device (4) for the burner oil-fired; a corridor bringing the coal into the air stream sucked in by the burner5; an electrical connection ensuring simultaneous operation between the burner and the charboA6 distributor and finally a cyclone-shaped ash box (7) to recover the the coarsest ash precipitated in the flue.

Claims (9)

REVENDICATIONS 1. Dispositif permettant de substituer du charbon de bois pulvérisé à une partie du fuel brûlé par les chaudières de chauffage inx dividuel et collectif, La partie de fuel brûlé assurant la complète combustion de la poudre de charbon injecté dans la veine d'air compressé par le brûleur de conception traditionnelle, la permanence du chauffage en cas de manque de charbon de bois, le nettoyage des dépots de pyroligneux éventuellement produits par certains charbons. 1. Device making it possible to substitute pulverized charcoal for part of the fuel burned by individual and collective inx heating boilers, The part of burned fuel ensuring the complete combustion of the coal powder injected into the stream of air compressed by the burner of traditional design, the permanence of the heating in the event of lack of charcoal, the cleaning of the deposits of pyroligneux possibly produced by certain coals. 2. Dispositif selon la revendication 1, caractérisé nar le fait que le moyen destiné à alimenter des chaufferies en charbon de bois est constitué par des conteneurs types sacs en papier permettant un stockage propre au voisinage immédiat des chaudières. 2. Device according to claim 1, characterized nar the fact that the means for supplying boilers with charcoal consists of paper bag type containers for proper storage in the immediate vicinity of the boilers. 3. Dispositif selon la revendication 1,caractérisé par la présence d'une trémie de stockage approvisionnable par véhicule à transfert pneumatique. 3. Device according to claim 1, characterized by the presence of a storage hopper supplyable by pneumatic transfer vehicle. 4. Dispositif selon les revendications 2 ou 3, caractérisé par un système pneumatique permettant le transfert du charbon pulvérisé contenu dans le sac ou la trémie de stockage vers une trémie d'alimentation située au dessus du brûleur à mazout de la chaudière. 4. Device according to claims 2 or 3, characterized by a pneumatic system for the transfer of pulverized coal contained in the bag or the storage hopper to a feed hopper located above the oil burner of the boiler. 5. Dispositif selon la revendication 4, caractérisé par une trémie close équipée d'un filtre permettant la sortie de l'air nécessaire au transfert pneumatique mais interdisant la sortie de la poussière de charbon dans la chaufferie. 5. Device according to claim 4, characterized by a closed hopper equipped with a filter allowing the exit of the air necessary for the pneumatic transfer but prohibiting the exit of the coal dust in the boiler room. 6. Dispositif selon la revendication 5, caractérisé par l'équipement des parois de la trémie avec des dispositifs interdisant la formation d'une voûte à la base de la trémie et au dessus du dispositif d'alimentation automatique en poudre de charbon de bois. Ces dispositifs pouvant être un agitateur et/ou des bandes mouvantes. 6. Device according to claim 5, characterized by equipping the walls of the hopper with devices preventing the formation of a vault at the base of the hopper and above the automatic feeding device for charcoal powder. These devices can be an agitator and / or moving bands. 7. Dispositif selon la revendication 6, caractérisé par un svs- tème d'alimentation automatique et modulable fonction fonctionnant simultanément avec le brûleur à hydrocarbures de l'installation d'origine et avec les dispositifs antivoute de la trémie de la chaudière. 7. Device according to claim 6, characterized by an automatic and modular supply system operating simultaneously with the hydrocarbon burner of the original installation and with the anti-drip devices of the boiler hopper. 8. Dispositif selon la revendication 7, modulant la richesse de la flamme en hydrocarbures en fonction de la présence ou de l'absence de charbon de bois dans la trémie d'alimentation. 8. Device according to claim 7, modulating the richness of the flame in hydrocarbons as a function of the presence or absence of charcoal in the feed hopper. 9. Dispositif selon la revendication 8,permettant l'élimination et le stockage des cendres volantes les plus grossières précipitées dans le conduit de fumée.  9. Device according to claim 8, allowing the elimination and storage of the coarsest fly ash precipitated in the flue.
FR7917442A 1979-07-03 1979-07-03 Pulverised charcoal heating burner - has supply silo and burner controls with flue cyclone for ash disposal Withdrawn FR2460445A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7917442A FR2460445A1 (en) 1979-07-03 1979-07-03 Pulverised charcoal heating burner - has supply silo and burner controls with flue cyclone for ash disposal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7917442A FR2460445A1 (en) 1979-07-03 1979-07-03 Pulverised charcoal heating burner - has supply silo and burner controls with flue cyclone for ash disposal

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FR2460445A1 true FR2460445A1 (en) 1981-01-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000600A1 (en) * 1982-07-23 1984-02-16 Comfort Heiztechnik Method and device for supplying solid fuels to consumers
WO2006042268A2 (en) * 2004-10-07 2006-04-20 Step Saver, Inc. Apparatus and method for delivery and reclamation of biomass fuel
WO2016174235A1 (en) * 2015-04-29 2016-11-03 Engie Supply method and associated supply container and management system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000600A1 (en) * 1982-07-23 1984-02-16 Comfort Heiztechnik Method and device for supplying solid fuels to consumers
US7305924B2 (en) 2003-07-30 2007-12-11 Step Saver, Inc. Apparatus and method for delivery of biomass fuel
WO2006042268A2 (en) * 2004-10-07 2006-04-20 Step Saver, Inc. Apparatus and method for delivery and reclamation of biomass fuel
WO2006042268A3 (en) * 2004-10-07 2006-10-05 Step Saver Inc Apparatus and method for delivery and reclamation of biomass fuel
WO2016174235A1 (en) * 2015-04-29 2016-11-03 Engie Supply method and associated supply container and management system
FR3035649A1 (en) * 2015-04-29 2016-11-04 Gdf Suez PROCESS OF SUPPLY, CONTAINER OF SUPPLY AND MANAGEMENT SYSTEM THEREOF

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