EP0881303A2 - Séchoir pour peaux tannées - Google Patents
Séchoir pour peaux tannées Download PDFInfo
- Publication number
- EP0881303A2 EP0881303A2 EP98109064A EP98109064A EP0881303A2 EP 0881303 A2 EP0881303 A2 EP 0881303A2 EP 98109064 A EP98109064 A EP 98109064A EP 98109064 A EP98109064 A EP 98109064A EP 0881303 A2 EP0881303 A2 EP 0881303A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- dryer
- cyclone
- discharge
- vacuum
- vapor
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims abstract 4
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001131 transforming effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 7
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/045—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying thin, flat articles in a batch operation, e.g. leather, rugs, gels
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/58—Drying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
- F26B25/006—Separating volatiles, e.g. recovering solvents from dryer exhaust gases
Definitions
- the present invention relates to a dryer for skins tanned according to the preamble of claim 1.
- this secondary compressor installation volumetric and cooling unit presents significant costs and, moreover, which even more important, requires very high electrical energy consumption, likely to discourage many potential buyers for cost reasons production.
- a normal installation with a liquid ring vacuum pump can effect consuming more than 20 kW / h, while with the addition of the secondary device, the refrigeration system consumes more than 100 kW / h.
- the object of the present invention is to remedy the aforementioned drawbacks. This is carried out in accordance with the characteristics of the characterizing part of the Claim 1. Other advantageous embodiments are the subject of the subclaims.
- a dryer is produced which creates the vacuum by means of one or more several oil-layer vane pumps, to be mounted on skin dryers multiple shelves, which had never been achieved until now, when the possibility, thanks to the presence of one or more external vapor touts to obtain a much more advantageous apparatus, both in terms of the yield on tanned hides only below that of production costs devices themselves.
- a group of rotary vane pumps extracts vapors and of water from the condenser chambers on the worktops, due to the fact that vacuum valves through which vapors and water are introduced into the external vapor reel which, by means of a condensation system particular, has the effect of reducing all the residual vapors and transforming them into water, which is automatically expelled by means of one or more discharges of condensate.
- the suction air which is now free of vapors or solid particles, is sent through a filter group which allows vacuum pumps of the type to oil bath paddles to work in optimal conditions without the introduction of foreign bodies.
- the electrical operation of the installation can be checked at by means of a specially provided panel, or connected and controlled directly by the central control panel of the multi-shelf dryer, which will control, with a central computer, all the functions that are performed in the plan dryer multiple and in its control devices.
- the condensers 1 arranged on the worktops are connected, via vacuum valves 2, to the reel of external vapors 3, provided with condensate discharges 4, while the vapors are sent through a cyclone 5 to the filter group 6, which is connected, by means of tubes, to the group of vacuum pumps 7, preferably of the vane type.
- the residual steam passes through a vertical tube condenser 9, it is cooled inside by cold water which enters through the inlet opening 10 and leaves through the outlet opening 11, or vice versa. Steam, in contact with cold walls vertical tubes 9 of the condenser, condenses in water, which falls on the bottom to be expelled.
- vapor guide walls In order to condense all possible vapor, vapor guide walls have been inserted 12, through which the condenser tubes 9 pass, walls which constrain the vapor to follow a course in the form of ⁇ S ⁇ , in order to have the best possible condensation.
- vapor guide walls 12 are fixed to the condenser tubes 9 and are independent of the cold wall 8, so that they can thus be extracted together with the tubes 9 if necessary.
- a cyclone 5 is mounted at the outlet of the vertical vapor reel, the discharge of which is connected to the bottom of the reel through the discharge tube 13.
- the treated skin appears dried, retaining the maximum quality and specific characteristics of the skin.
- Another advantage which is not negligible consists in the fact that the operator works on almost cold surfaces.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
Description
Claims (7)
- SECHOIR POUR PEAUX TANNEES, comprenant des plans de travail multiples et des moyens d'aspiration, dans lequel des condenseurs (1) placés dans les plans de travail sont reliés, par l'intermédiaire de vannes à vide (2), à une cuve (3) munie d'au moins une décharge de condensats (4) et d'un cyclone (5), qui est à son tour relié à un groupe filtrant (6) et à un groupe de pompes à vide à palettes (7), caractérisé en ce que la cuve (3) est munie de parois intérieures de séparation (8) à l'intérieur desquelles sont montés des tubes condenseurs (9), soutenus par des parois guide-vapeurs (12) et qui ont pour effet de refroidir les vapeurs en les transformant en eau qui se décharge automatiquement par l'intermédiaire de la ou de chaque décharge de condensats (4).
- SECHOIR POUR PEAUX TANNEES, selon la revendication 1, caractérisé en ce que les vapeurs qui pénètrent, à travers les vannes à vide (2), se rabattent contre la paroi intérieure de séparation (8), en perdant de la vitesse et en se transformant en eau liquide qui tombe immédiatement pour être expulsée par l'intermédiaire de la ou de chaque décharge des condensats (4).
- SECHOIR POUR PEAUX TANNEES, selon les revendications 1 et 2, caractérisé en ce que la vapeur résiduelle passe à travers une cuve munie intérieurement de tubes condenseurs verticaux (9) et refroidie à l'intérieur par de l'eau froide, ladite vapeur résiduelle se transformant ainsi en eau afin d'être expulsée par la ou chaque décharge de condensats (4).
- SECHOIR POUR PEAUX TANNEES selon les revendications 1 à 3, caractérisé en ce que, afin de condenser toute la vapeur possible, les parois guide-vapeurs (12) sont traversées par les tubes du condenseur (9) qui contraignent la vapeur à suivre un itinéraire en forme de 〈〈S〉〉.
- SECHOIR POUR PEAUX TANNEES, selon les revendications 1 à 4, caractérisé en ce qu'afin de rabattre d'éventuelles vapeurs résiduelles ou des particules solides, le cyclone (5) est monté à la sortie de l'espace où sont insérés les tubes condenseurs (9) disposés à l'intérieur de la cuve (3), ledit cyclone (5) étant muni d'une décharge reliée au fond du rabatteur par l'intermédiaire de tubes de décharge (13).
- SECHOIR POUR PEAUX TANNEES selon les revendications 1 à 5, caractérisé en ce qu'à la suite du cyclone (5) sont placés un ou plusieurs filtres (6) qui permettent aux pompes à palettes (7) d'aspirer de l'air sec et propre.
- SECHOIR POUR PEAUX TANNEES, selon les revendications 1 à 6, caractérisé en ce que le vide régnant sur les plans de travail est obtenu au moyen d'une ou plusieurs pompes à palettes (7) du type à couche d'huile, en permettant de cette façon de réduire la pression résiduelle à l'intérieur des chambres à vide, grâce à la présence de la cuve (3), du cyclone (5) et des filtres (6).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITVI970078 | 1997-05-26 | ||
IT97VI000078A IT1292997B1 (it) | 1997-05-26 | 1997-05-26 | Essiccatoio per pelli conciate a pianali multipli con aspirazione di tipo particolare |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0881303A2 true EP0881303A2 (fr) | 1998-12-02 |
EP0881303A3 EP0881303A3 (fr) | 1999-10-27 |
EP0881303B1 EP0881303B1 (fr) | 2002-09-04 |
Family
ID=11426372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98109064A Expired - Lifetime EP0881303B1 (fr) | 1997-05-26 | 1998-05-19 | Séchoir pour peaux tannées |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0881303B1 (fr) |
DE (1) | DE69807580D1 (fr) |
IT (1) | IT1292997B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20130009A1 (it) * | 2013-01-17 | 2014-07-18 | Cartigliano Off Spa | Apparato compatto per l'essicatura sotto vuoto di pelli industriali |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3224109A (en) * | 1962-02-09 | 1965-12-21 | Cartigliano Off Spa | Apparatus for the vacuum-drying of leather |
DE1959286A1 (de) * | 1968-12-03 | 1970-06-18 | Cartigliano Ind Metalmecc | Vakuumtrockenvorrichtung fuer tierische Haeute od.dgl. |
-
1997
- 1997-05-26 IT IT97VI000078A patent/IT1292997B1/it active IP Right Grant
-
1998
- 1998-05-19 DE DE69807580T patent/DE69807580D1/de not_active Expired - Lifetime
- 1998-05-19 EP EP98109064A patent/EP0881303B1/fr not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3224109A (en) * | 1962-02-09 | 1965-12-21 | Cartigliano Off Spa | Apparatus for the vacuum-drying of leather |
DE1959286A1 (de) * | 1968-12-03 | 1970-06-18 | Cartigliano Ind Metalmecc | Vakuumtrockenvorrichtung fuer tierische Haeute od.dgl. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20130009A1 (it) * | 2013-01-17 | 2014-07-18 | Cartigliano Off Spa | Apparato compatto per l'essicatura sotto vuoto di pelli industriali |
Also Published As
Publication number | Publication date |
---|---|
EP0881303B1 (fr) | 2002-09-04 |
ITVI970078A1 (it) | 1998-11-26 |
IT1292997B1 (it) | 1999-02-11 |
DE69807580D1 (de) | 2002-10-10 |
EP0881303A3 (fr) | 1999-10-27 |
ITVI970078A0 (fr) | 1997-05-26 |
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