EP1254946A1 - Chemischer Russentferner - Google Patents

Chemischer Russentferner Download PDF

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Publication number
EP1254946A1
EP1254946A1 EP02356071A EP02356071A EP1254946A1 EP 1254946 A1 EP1254946 A1 EP 1254946A1 EP 02356071 A EP02356071 A EP 02356071A EP 02356071 A EP02356071 A EP 02356071A EP 1254946 A1 EP1254946 A1 EP 1254946A1
Authority
EP
European Patent Office
Prior art keywords
agent
product
destruction
chemical destruction
weight
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.)
Granted
Application number
EP02356071A
Other languages
English (en)
French (fr)
Other versions
EP1254946B1 (de
Inventor
Lionel Bodo
Jacques Fayle
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.)
CREA
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CREA
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Filing date
Publication date
Application filed by CREA filed Critical CREA
Publication of EP1254946A1 publication Critical patent/EP1254946A1/de
Application granted granted Critical
Publication of EP1254946B1 publication Critical patent/EP1254946B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal

Definitions

  • the present invention relates to sweeping products chemical used in substitution or in addition to devices mechanical chimney sweeping.
  • an agent solid fuel acting preventively or curatively on deposits and soot in the calorie generators includes, among other things, a cellulosic combustible material particulate, an active preventive or curative agent for soot and tar deposits, and optionally a binder.
  • the product active is in small quantity, less than 10%.
  • the agglomerates obtained, for example in the form of briquettes, sticks or granules, are introduced into an active hearth, at a rate of approximately 1 kg / tonne of fuel.
  • the effectiveness of the products thus constituted is not satisfactory, and in particular the destruction of the soot is most often insufficient in the pipe sections away from the fire, which are therefore at higher temperatures low.
  • the problem proposed by the present invention is to design a more effective solid product for more destruction complete with carbon deposits such as soot, a process for its manufacturing, and a method of use providing results improved.
  • the solid cellulosic combustible material particulate can be sawdust.
  • the chemical agent for destroying deposits carbonaceous contains at least one ammonium salt and at least one salt of alkali or alkaline earth metal.
  • the ammonium salt can advantageously be chosen from the family comprising ammonium sulfate, phosphate ammonium and ammonium chloride. We may however prefer refrain from using ammonium chloride, in order to avoid release of chlorine or chlorine products.
  • the ammonium salt is preferably ammonium sulfate.
  • a particularly improved sweeping efficiency, especially in cold chimney flue areas, is obtained using a chemical deposit destruction agent carbon containing, in mixture: an ammonium salt, nitrate of potassium, and potassium carbonate.
  • ammonium salt is present in the chemical destruction of carbon deposits in proportion greater than 50% by weight of the agent.
  • Potassium nitrate and potassium carbonate may be present in the chemical destruction agent depending on percentages close to each other.
  • potassium nitrate may be present in a proportion of approximately 20% by weight, and the carbonate of potassium may be present in a proportion of 15% by weight approximately of the chemical destruction agent of carbonaceous deposits.
  • the mixture when manufacturing the product, the mixture must contain a reduced residual moisture content, corresponding to less than about 15% water by weight, preferably less than 10 %.
  • the solid product for the destruction of carbon deposits such that the soot according to the invention consists of an aggregate mixed and compressed solid cellulosic combustible material particulate such as sawdust, and powders or crystals of an agent for the chemical destruction of carbonaceous deposits.
  • the product according to the invention does not contain other constituents, apart from the usual presence of water and inevitable in solid cellulosic materials such as sawdust and chemical destruction agent crystals such as generally hygroscopic salts.
  • the cellulosic combustible material particulate solid is present in the product in proportion to at least minus 30% by weight of the product, and the chemical destruction agent carbon deposits are present in proportion of at least 20% in product weight.
  • the solid product according to the invention can for example be packaged in the form of a log 1 as illustrated in the figure 1, in which grains 2 of the material can be distinguished solid particulate cellulosic fuel and particles of powder or crystals 3 of chemical agent for the destruction of deposits carbon.
  • the chemical destruction agent according to the invention contains at least one ammonium salt and at least one alkali or alkaline-earth metal salt.
  • the ammonium salt can be chosen from the family comprising ammonium sulfate (NH 4 ) 2 SO 4 , ammonium phosphate (NH 4 ) 3 PO 4 , and ammonium chloride NH 4 Cl. however, prefer ammonium sulphate, which has an improved action on soot and which prevents the release of chlorinated products which are both harmful and corrosive.
  • An advantageous example of a chemical destruction agent according to the invention is a mixture containing an ammonium salt, potassium nitrate KNO 3 and potassium carbonate K 2 CO 3 .
  • the ammonium salt is present in the agent in a proportion greater than 50% by weight.
  • potassium nitrate and potassium carbonate may be present in percentages neighbors, for example around 20% for potassium nitrate and about 15% for potassium carbonate, the percentages being expressed by weight of the chemical destruction agent.
  • This formulation optimizes the sweeping of the smoke, favoring a strong release of active gas at temperature of relatively low focus, and promoting chemical action on soot in all areas of the flue and especially in the coldest areas.
  • Nickel acetate Ni (OCOCH 3 ) 2 catalyzes the action of salts on soot.
  • FIG. 2 The use of the solid product according to the invention is illustrated in Figure 2.
  • a chimney 4 whose fireplace 5 contains a bed of embers 6 supporting a log 1 according to the invention.
  • the heat given off by the ember bed 6 causes slow combustion of cellulosic combustible material particulate solid present in the solid product as log 1, this combustion ensuring the maintenance of a temperature sufficient for sublimation and release of gases 7 from materials constituting the chemical destruction agent.
  • the gases 7 are propagate in line 8, and act on carbon deposits such as soot present in duct 8.
  • Combustion Log 1 can last several hours, allowing almost complete destruction of carbon deposits.
  • FIG. 3 illustrates the steps of a method of manufacture of a solid product for destroying carbon deposits according to the invention. The process includes the following steps.
  • the solid combustible material is mixed particulate and powdered chemical destruction agent or crystals, in a container 9 using a mixing device 10.
  • FIG. 4 the means are more precisely illustrated. pressing techniques to obtain logs of product according to the invention.
  • an alternative press essentially having a tubular structure 14 traversed by a axial piston 12.
  • a reception chamber 15 with orifice upper 16 for introducing the mixture previously formed of particulate solid combustible material and destructive agent chemical.
  • the tubular structure 14 is oriented horizontally, and the upper insertion hole 16 is oriented upwards, below a hopper 17.
  • a braking device 20 consisting of example of a radial jaw that can compress radially a part of material present in the tubular structure 14 at right of the jaw, to slow down the axial progression of the materials and allow compression by the piston 12 in the compression 18.
  • the device In FIG. 4a, the device is in the initial state of reception of material in the receiving chamber 15. Material premixed particulate enters the reception 15 by the upper orifice 16 coming from the hopper 17 upper. The piston 12 is then in the maximum recoil position.
  • the piston 12 is advanced at high speed, until it reaches the compression chamber 18.
  • the material contained in the compression chamber 18 is then relatively compressed, and compression is continued in advance of the piston 12.
  • the braking device 20 is biased radially inward to oppose the progression of the material towards the outlet chamber 19.
  • the alternative press thus constituted enables successive sections of compressed material to be produced and agglomerated.
  • the material continuously leaves the outlet chamber 19 in the form of a continuous bar, which can then be sawn by the saw 13 according to the appropriate lengths.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Detergent Compositions (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Jellies, Jams, And Syrups (AREA)
EP02356071A 2001-04-19 2002-04-18 Chemischer Russentferner Expired - Lifetime EP1254946B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0105530 2001-04-19
FR0105530A FR2823759B1 (fr) 2001-04-19 2001-04-19 Produit de ramonage chimique

Publications (2)

Publication Number Publication Date
EP1254946A1 true EP1254946A1 (de) 2002-11-06
EP1254946B1 EP1254946B1 (de) 2007-02-14

Family

ID=8862650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02356071A Expired - Lifetime EP1254946B1 (de) 2001-04-19 2002-04-18 Chemischer Russentferner

Country Status (4)

Country Link
EP (1) EP1254946B1 (de)
AT (1) ATE353949T1 (de)
DE (1) DE60218079D1 (de)
FR (1) FR2823759B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2434003A1 (de) 2010-09-23 2012-03-28 Chembo S.A. Feste Zusammensetzung eines chemischen Schornsteinreinigungsmittels

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554458A1 (fr) * 1983-11-03 1985-05-10 Thibonnet Bernard Complexe combustible de nettoyage
EP0837121A1 (de) * 1996-10-10 1998-04-22 Eurexim Fester Brennstoff zur Zerstörung des Russ und der Teeren, Verfahren zu dessen Herstellung, und dessen Verwendung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554458A1 (fr) * 1983-11-03 1985-05-10 Thibonnet Bernard Complexe combustible de nettoyage
EP0837121A1 (de) * 1996-10-10 1998-04-22 Eurexim Fester Brennstoff zur Zerstörung des Russ und der Teeren, Verfahren zu dessen Herstellung, und dessen Verwendung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2434003A1 (de) 2010-09-23 2012-03-28 Chembo S.A. Feste Zusammensetzung eines chemischen Schornsteinreinigungsmittels

Also Published As

Publication number Publication date
FR2823759B1 (fr) 2006-02-03
ATE353949T1 (de) 2007-03-15
DE60218079D1 (de) 2007-03-29
EP1254946B1 (de) 2007-02-14
FR2823759A1 (fr) 2002-10-25

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