EP0450574A2 - Zusätzlicher Umkreis für Filter in Trockenreinigungsmaschinen - Google Patents

Zusätzlicher Umkreis für Filter in Trockenreinigungsmaschinen Download PDF

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Publication number
EP0450574A2
EP0450574A2 EP91105199A EP91105199A EP0450574A2 EP 0450574 A2 EP0450574 A2 EP 0450574A2 EP 91105199 A EP91105199 A EP 91105199A EP 91105199 A EP91105199 A EP 91105199A EP 0450574 A2 EP0450574 A2 EP 0450574A2
Authority
EP
European Patent Office
Prior art keywords
circuit
drying
dry
filter
duct
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
EP91105199A
Other languages
English (en)
French (fr)
Other versions
EP0450574B1 (de
EP0450574A3 (en
Inventor
Gualtiero Ghelardini
Tommaso Arbizzani
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.)
Sodibo SpA
Original Assignee
Sodibo SpA
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 Sodibo SpA filed Critical Sodibo SpA
Publication of EP0450574A2 publication Critical patent/EP0450574A2/de
Publication of EP0450574A3 publication Critical patent/EP0450574A3/en
Application granted granted Critical
Publication of EP0450574B1 publication Critical patent/EP0450574B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/08—Associated apparatus for handling and recovering the solvents
    • D06F43/081—Reclaiming or recovering the solvent from a mixture of solvent and contaminants, e.g. by distilling
    • D06F43/085—Filtering arrangements; Filter cleaning; Filter-aid powder dispensers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/08—Associated apparatus for handling and recovering the solvents

Definitions

  • the present invention relates to an auxiliary circuit for filters in dry-cleaning machines.
  • the washing liquid composed of solvents and water
  • a filter known as needle trap filter
  • Fluff from the washed fabrics accumulates in said filter, and must be removed periodically in order to restore the filter effectiveness; however, when the accumulated fluff is to be removed, it is impregnated with solvent and therefore cannot be disposed immediately: one must in fact bear in mind that there are specific and stringent rules governing the disposal of waste impregnated with solvents.
  • the aim of the present invention is to obviate the above mentioned disadvantage, i.e. to provide an auxiliary needle trap circuit in dry-cleaning machines which eliminates moisture and solvent from the collected fluff, so as to make the dried fluff easily disposable and so as to avoid the persistence of moisture and solvent inside the machine after the washing cycle is completed.
  • auxiliary circuit for filters in dry-cleaning machines characterized in that a duct is arranged between the base of the filter and the stack which connects the drum to the drying air condensation circuit, said duct being suitable for providing a circuit for drying the filter compartment which is arranged in parallel to the drying circuit of the washing drum so that the collected fluff is dried, part of the forced air being conveyed, during the drying cycle, so as to pass through the filter and return into the drying circuit for the condensation and separation of the moisture and solvent residuals.
  • auxiliary circuit for a filter for example a so-called needle trap filter, according to the invention, is generally indicated by the reference numeral 1.
  • the circuit 1 is installed in a dry-cleaning machine which comprises a washing drum 3, a stack 4 for the outflow of air from the drum and a stack 5 for the inflow of air into said drum; said stacks are mutually connected by a condensation chamber 6 in which a fan 7, driven by a motor 8, operates; an evaporator 9 of a refrigeration device suitable for separating the solvent and the moisture present in the air operates inside the chamber 6, and the condenser 10 of said refrigeration device is installed in the stack 5.
  • a dry-cleaning machine which comprises a washing drum 3, a stack 4 for the outflow of air from the drum and a stack 5 for the inflow of air into said drum; said stacks are mutually connected by a condensation chamber 6 in which a fan 7, driven by a motor 8, operates; an evaporator 9 of a refrigeration device suitable for separating the solvent and the moisture present in the air operates inside the chamber 6, and the condenser 10 of said refrigeration device is installed in the stack 5.
  • the base of the drum is connected in a known manner by means of a pipe 11 to the needle trap filter 2, which is connected by means of a pipe 12 to a pump B; said pipe 12 is cutoff by an electric valve 12a.
  • the needle trap filter 2 is constituted, in a known manner, by an upper half-chamber 14 and by a lower half-chamber 15 which are separated by a filtration sector 16; the upper half-chamber is open upward, and its upper inlet is closed by a lid 14a which can be removed for the periodic maintenance of the trap.
  • the letter P indicates the fluff which collects in the needle trap.
  • the circuit according to the invention is obtained by connecting the lower half-chamber 15 of the needle trap and the stack 4 by means of a duct 17; thus, during the drying cycle, part of the air forced by the fan 7 can be conveyed through the trap filter 2; moisture and solvent are thus progressively removed from the fluff and are then condensed by 9 and collected.
  • the fluff contained in 2 is therefore perfectly dry; it is thus possible to remove it through the upper opening of the needle trap and dispose it.
  • a valve 17a can be arranged on the duct 17 and can be actuated either manually or electrically to dry the fluff only when required instead of at the end of each wash.
EP91105199A 1990-04-06 1991-04-02 Zusätzlicher Umkreis für Filter in Trockenreinigungsmaschinen Expired - Lifetime EP0450574B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT3437A IT1238545B (it) 1990-04-06 1990-04-06 Circuito ausiliario per il filtro prendispilli in macchine lavasecco.
IT343790 1990-04-06

Publications (3)

Publication Number Publication Date
EP0450574A2 true EP0450574A2 (de) 1991-10-09
EP0450574A3 EP0450574A3 (en) 1992-12-02
EP0450574B1 EP0450574B1 (de) 1997-02-12

Family

ID=11107363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105199A Expired - Lifetime EP0450574B1 (de) 1990-04-06 1991-04-02 Zusätzlicher Umkreis für Filter in Trockenreinigungsmaschinen

Country Status (3)

Country Link
EP (1) EP0450574B1 (de)
DE (1) DE69124634T2 (de)
IT (1) IT1238545B (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE19986E (en) * 1926-08-30 1936-05-26 Dry cleaning apparatus
FR2494316A1 (fr) * 1980-11-18 1982-05-21 Mordelet Francis Procede de desodorisation pour machine de nettoyage a sec
EP0082443A2 (de) * 1981-12-17 1983-06-29 Walter Jost Reinigungsanlage zum chemischen Reinigen von Gegenständen aus Stoff
EP0191423A2 (de) * 1985-02-14 1986-08-20 Walter Jost Reinigungsmaschine zum chemischen Reinigen von Gegenständen aus Stoff

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE19986E (en) * 1926-08-30 1936-05-26 Dry cleaning apparatus
FR2494316A1 (fr) * 1980-11-18 1982-05-21 Mordelet Francis Procede de desodorisation pour machine de nettoyage a sec
EP0082443A2 (de) * 1981-12-17 1983-06-29 Walter Jost Reinigungsanlage zum chemischen Reinigen von Gegenständen aus Stoff
EP0191423A2 (de) * 1985-02-14 1986-08-20 Walter Jost Reinigungsmaschine zum chemischen Reinigen von Gegenständen aus Stoff

Also Published As

Publication number Publication date
IT9003437A1 (it) 1991-10-06
IT1238545B (it) 1993-08-18
EP0450574B1 (de) 1997-02-12
IT9003437A0 (it) 1990-04-06
DE69124634T2 (de) 1997-06-05
EP0450574A3 (en) 1992-12-02
DE69124634D1 (de) 1997-03-27

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