Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
  • B24C3/00—Abrasive blasting machines or devices; Plants
  • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
  • B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes

Definitions

• the present invention relates to a regeneration process drums or the like and a device for its implementation.
• a drum is a wooden container, which can also be called barrel, barrel, ...
• the interior of the staves forming the barrel is altered on the surface and to a depth of a few millimeters (of the order of 0.5 to 2 millimeters) by microorganisms and by an accumulation of organic and / or inorganic deposits such as dyestuffs, colloids, scale, sulphates or others.
• the accumulation of deposits closes the pores of the wood, leading to a reduction or even a total suppression of gaseous exchanges between the wine and the outside of the barrel to obtain a controlled oxidation, and totally or partially prevents the wood from liberating various substances in the wine. that it contains, for example aromas or tannins.
• Microorganisms that are harmful to the organoleptic qualities of wine include various molds, "Acetobacter” bacteria and Brettanomyces yeasts.
• a first solution is to wash with hot water. This economical solution is very insufficient for return the drum to its original functionality and / or destroy the microorganisms.
• a first category of techniques relies on chemical processes aimed at dissolving organic and mineral deposits and destroying microorganisms.
• these processes can adversely affect the natural production image of the wine or, in the worst case, the organoleptic qualities of the wine.
• Another technique is to repack the barrels by opening them, by planing the interior to find a new wood and submit them to a new heater.
• This solution which makes it possible to find a drum in the new state is generally relatively expensive because it requires a new heating.
• the present invention aims to overcome the disadvantages of the prior art by providing a method for regenerating the barrels to eliminate microorganisms and to find the original features of the wooden drum.
• the subject of the invention is a method of regenerating a drum or the like made of wood, used in particular for rearing wine, characterized in that it consists in projecting an abrasive against at least a part of the inner surface of the barrel, and preferably the entire surface to remove the area of wood altered by deposits and microorganisms.
• the invention also proposes a device for implementing the method.
• FIG. 2 is a section of a part of a stave of a barrel after breeding one or more wines
• FIG. 3 is a section of a part of a stave of a keg after being treated by the process according to the invention
• FIG. 4 is a side elevational view of a device for carrying out the method according to the invention.
• FIG. 5 is a section along line V-V of the device illustrated in FIG. 4;
• FIG. 6 is a section of a nozzle for the projection of abrasive elements
• FIG. 7 is a section of another nozzle
• FIGS. 8A and 8B are sections illustrating a lance for the projection of abrasive elements with a first nozzle in different positions
• FIG. 9 is a section illustrating a lance for the projection of abrasive elements with a second nozzle
• FIG. 10 is a section illustrating a lance for the projection of abrasive elements with a third nozzle.
• a wooden barrel especially oak, for raising wine.
• this shaft is made from staves assembled and rimmed with each end a bottom.
• a drum is a wooden container, which can also be called barrel, barrel, ...
• the inner surface 12 of the barrel is heated to allow the wood to communicate certain aromas to the wine.
• the inside of the barrel is affected by the heating to a depth of the order of a few millimeters (of the order of 5 millimeters), materialized by hatching and referenced 14 in FIG.
• the inside of the barrel is altered on the surface and to a depth of a few millimeters by micro-organisms and by mineral or organic deposits materialized by the zone 16 in FIG. 2.
• the method of the invention is to project an abrasive against at least a portion of the inner surface of the barrel, and preferably the entire surface.
• the method makes it possible to obtain a "peeling" of the inner surface of the barrel over a depth of the order of 0.5 to 3 mm, preferably of 0.5 to 1 mm, in order to remove the area 16 of weathered wood by various deposits.
• the residues of the treatment (abrasives, deposits, micro-organisms, ...) are evacuated by gravity and rinsing with cold water.
• a clean and partially decontaminated wood is ready to receive the complementary phases of disinfection, either successively a saturated steam treatment above 100 0 C and a sulphurous gas treatment under pressure.
• a saturated steam treatment above 100 0 C and a sulphurous gas treatment under pressure The application times of the steam and sulfur gas, the pressures, the steam temperature and the SOz dose will be defined after a specific study.
• the process does not require a new heater since the removal of material is well below the depth affected by the heating.
• the method of the invention allows:
• the complementary phases of disinfection make it possible to treat the barrel between the staves and to obtain a treatment with a high temperature to a depth of about 1 cm thanks in particular to the injection of a sulphurous gas under pressure.
• the abrasive is a mineral abrasive, natural, preferably purified.
• the abrasive has a particle size of about 400 to 2000 microns, and preferably between 600 and 1500 microns.
• the abrasive is propelled with water and / or air with a pressure of the order of 5 to 15 bars, with a percentage of abrasives of the order of 15 to 40%.
• the abrasive is projected against the inner surface of the barrel by means of a lance 18 introduced via the bung hole 20 of the barrel.
• the lance 18 capable of projecting at least one beam 22 of abrasives is set in motion by a motorization so as to translate and pivot on itself so that said at least one beam 22 reaches all the parts of the body. inner surface of the barrel.
• the barrel is arranged in such a way that the staves are substantially horizontal with the bung hole 20 disposed at the level of the horizontal median plane, and the lance 10 is translated horizontally, passing via the bung hole, according to a direction substantially perpendicular to the longitudinal axis of the shaft (axis parallel to the staves), materialized by the axis 24 which is also the axis of the lance 18. Simultaneously, the lance 18 pivots on itself along its axis 24 of displacement .
• the lance 18 can emit abrasive bundles with different degrees of inclination with respect to the axis 24 of the lance.
• the beam 22 may have a mean orientation in the extension of the axis 24 of the lance, as shown in Figure 9, at substantially 90 ° with respect to said axis 24, as shown in Figure 10, or at substantially 45 ° with respect to said axis as illustrated in Figures 8A and 8B.
• the latter comprises at its end a nozzle 26.
• this nozzle may have a rectilinear conduit to obtain a beam in the extension of the axis 24.
• the nozzle 26 may comprise a conduit 28 may be connected at one end to the conduit of the lance 18 and at the other end to at least one conduit opening 30, and preferably two diametrically opposed substantially perpendicular at the conduit 28 so as to obtain at least one beam substantially at 90 ° with respect to the axis 24 of the lance.
• the nozzle 26 may comprise a duct 32 capable of being connected at one end to the duct of the lance 18 and at the other end to at least one opening duct 34, and preferably two in the same median plane, axis substantially at 135 ° to that of the duct 32 so as to obtain at least one beam substantially at 45 ° with respect to the axis 24 of the lance.
• the lance 18 is in the form of a rectilinear tube with at one end connection means 36 to a supply duct 38 in fluid and abrasives under pressure and at a second end of the means. for connecting to a nozzle 26.
• the connection means 36 allow relative rotation between the lance 18 and the supply duct.
• connection between the lance and the nozzle is obtained by means of a ring or sleeve 40 integral with the nozzle that can be screwed onto an external thread formed at the end of the lance 18.
• the three nozzles mentioned above are used so as to treat all the zones of the inner surface of the drum.
• a nozzle with a beam in the extension of the axis is used to treat the area of the inner surface diametrically opposite the bung hole.
• the barrel undergoes a pass with a nozzle with beams oriented at 90 ° and another passes with a nozzle with beams oriented at 45 °, the order of passage of the nozzles at 45 ° and 90 ° may vary .
• the barrel can be subjected to a pass with a nozzle at 45 ° or 90 °, two passes with a nozzle at 45 ° and / or a nozzle at 90 °, or multiple passes.
• the projection of abrasives can be carried out only on the outward or return journey.
• different translation speeds can be provided depending on the projection or not of abrasives. Thus, if the lance projects abrasive on the go a slow speed can be provided while a fast speed can be expected if the abrasive is not projected back.
• FIG. 4 and 5 there is shown a device for carrying out the method according to the invention. It includes a frame 42 with two beams 44 substantially parallel along which can translate a cross or carriage 46. Stoppers 48 disposed on one of the beams allow to adjust the stroke of the carriage 46.
• the carriage 46 is shown in detail without cover.
• Tapered rollers 50 are provided to allow the translation movement of the carriage relative to the beams.
• the translation of the carriage is provided by a geared motor 52 comprising a pinion capable of meshing on a rack attached to one of the beams.
• geared motor 52 comprising a pinion capable of meshing on a rack attached to one of the beams.
• other technical solutions could be envisaged to ensure the translation movement of the carriage on the beam or beams.
• the carriage 46 supports at least one lance 18, and according to the example illustrated in FIG. 5, two lances 18.
• the carriage 46 for each lance, the carriage 46 comprises a bearing 54 a ⁇ / ec a swivel sleeve 56 in which is capable of being immobilized a lance 18. At least one motor 58 is provided to ensure the rotation of the or Sleeves 56.
• the lance 18 is immobilized relative to the sleeve 56 by any appropriate means, in particular by virtue of at least one pressure screw.
• the sleeve 56 can be made in two parts which slide one inside the other.
• other technical solutions can be envisaged to ensure the connection between the carriage and each lance.
• the device also comprises control means 60 for controlling and adjusting the movements of the various moving elements as well as the supply of abrasives and fluid.
• the barrels can be reported on a frame 62, hereinafter referred to drum support, having rollers mounted in pairs to support the barrels and to allow them to rotate.
• a support can support one or more drums. This type of support makes it possible to empty the dry abrasive by gravity via the bung hole 20.
• a washing unit is generally provided for injecting into the barrel via the bung hole of the water under low pressure. with a large flow rate to evacuate the remaining abrasive.
• To collect the drums it is possible to use a drum support.
• the casks to be treated are placed on this support in the cellar.
• the treatment plant may comprise at least one unit for carrying out the complementary disinfection phases, namely means for injecting into the drum saturated water vapor at more than 100 ° C. for a period of one hour. determined time and means for injecting a sulphurous gas under pressure for a determined time.
• the invention is obviously not limited to the embodiment shown and described above, but covers all variants, particularly with regard to the nature of the abrasive, flow rates and pressures used. .

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
• Cleaning In General (AREA)
• Debarking, Splitting, And Disintegration Of Timber (AREA)
• Chemical And Physical Treatments For Wood And The Like (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=37075695

Family Applications (1)

Country Status (11)

Cited By (2)

Families Citing this family (9)

Family Cites Families (19)

• 2006
  • 2006-04-28 FR FR0651532A patent/FR2900357B1/fr not_active Expired - Fee Related
• 2007
  • 2007-04-25 EP EP07731941A patent/EP2012971B1/de active Active
  • 2007-04-25 US US12/298,819 patent/US20120064805A1/en not_active Abandoned
  • 2007-04-25 ES ES07731941T patent/ES2364979T3/es active Active
  • 2007-04-25 PT PT07731941T patent/PT2012971E/pt unknown
  • 2007-04-25 AU AU2007245508A patent/AU2007245508A1/en not_active Abandoned
  • 2007-04-25 AT AT07731941T patent/ATE494989T1/de not_active IP Right Cessation
  • 2007-04-25 WO PCT/FR2007/051168 patent/WO2007125250A1/fr not_active Ceased
  • 2007-04-25 DE DE602007011915T patent/DE602007011915D1/de active Active
  • 2007-04-27 AR ARP070101849A patent/AR060708A1/es not_active Application Discontinuation
• 2008
  • 2008-10-27 ZA ZA2008/09189A patent/ZA200809189B/en unknown

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