EP0881303B1 - Séchoir pour peaux tannées - Google Patents

Séchoir pour peaux tannées Download PDF

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Publication number
EP0881303B1
EP0881303B1 EP98109064A EP98109064A EP0881303B1 EP 0881303 B1 EP0881303 B1 EP 0881303B1 EP 98109064 A EP98109064 A EP 98109064A EP 98109064 A EP98109064 A EP 98109064A EP 0881303 B1 EP0881303 B1 EP 0881303B1
Authority
EP
European Patent Office
Prior art keywords
vapour
drier
fact
distinguished
cyclone
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.)
Expired - Lifetime
Application number
EP98109064A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0881303A2 (fr
EP0881303A3 (fr
Inventor
Gianni Dal Lago
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.)
Escomar Italia Srl
Original Assignee
Escomar Italia Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Escomar Italia Srl filed Critical Escomar Italia Srl
Publication of EP0881303A2 publication Critical patent/EP0881303A2/fr
Publication of EP0881303A3 publication Critical patent/EP0881303A3/fr
Application granted granted Critical
Publication of EP0881303B1 publication Critical patent/EP0881303B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 an “S” shaped course, 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)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
EP98109064A 1997-05-26 1998-05-19 Séchoir pour peaux tannées Expired - Lifetime EP0881303B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97VI000078A IT1292997B1 (it) 1997-05-26 1997-05-26 Essiccatoio per pelli conciate a pianali multipli con aspirazione di tipo particolare
ITVI970078 1997-05-26

Publications (3)

Publication Number Publication Date
EP0881303A2 EP0881303A2 (fr) 1998-12-02
EP0881303A3 EP0881303A3 (fr) 1999-10-27
EP0881303B1 true 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 (enrdf_load_html_response)
DE (1) DE69807580D1 (enrdf_load_html_response)
IT (1) IT1292997B1 (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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.

Also Published As

Publication number Publication date
DE69807580D1 (de) 2002-10-10
EP0881303A2 (fr) 1998-12-02
IT1292997B1 (it) 1999-02-11
ITVI970078A1 (it) 1998-11-26
ITVI970078A0 (enrdf_load_html_response) 1997-05-26
EP0881303A3 (fr) 1999-10-27

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