EP0375629B1 - Procédé et appareil pour le traitement des balles de coton en vue d'enlèvement de champignons et des micro-organismes - Google Patents

Procédé et appareil pour le traitement des balles de coton en vue d'enlèvement de champignons et des micro-organismes Download PDF

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Publication number
EP0375629B1
EP0375629B1 EP89830501A EP89830501A EP0375629B1 EP 0375629 B1 EP0375629 B1 EP 0375629B1 EP 89830501 A EP89830501 A EP 89830501A EP 89830501 A EP89830501 A EP 89830501A EP 0375629 B1 EP0375629 B1 EP 0375629B1
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EP
European Patent Office
Prior art keywords
bales
tunnel
cotton
processing
processed
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
EP89830501A
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German (de)
English (en)
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EP0375629A1 (fr
Inventor
Edoardo Polli
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Individual
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Individual
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Publication date
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Priority to AT89830501T priority Critical patent/ATE86681T1/de
Publication of EP0375629A1 publication Critical patent/EP0375629A1/fr
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G99/00—Subject matter not provided for in other groups of this subclass
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/04—Heating using microwaves
    • H05B2206/045—Microwave disinfection, sterilization, destruction of waste...

Definitions

  • the present invention relates to a method and an apparatus which have been specifically designed for processing cotton bales to remove fungi and micro-organisms therefrom.
  • the main object of the present invention is to solve the above mentioned problem by providing a method for processing cotton bales to safely remove therefrom fungi and micro-organisms.
  • Another object of the invention is to provide such a method which processes high amounts of cotton with a very high hour yield and a perfect removal of fungi and micro-organisms,without negatively affecting the textile properties of the processed cotton.
  • Another object of the invention is to provide such a method which affords the possibility of processing pressed cotton bales of conventional shapes and size.
  • Yet another object of the invention is to provide an apparatus for carrying out the inventive method which apparatus is very simple construction-wise and can be made starting from easily available component and materials.
  • a method for processing cotton bales for removing fungi and micro-organisms therefrom comprises the steps of continuously conveying pressed cotton bales to a processing tunnel,microwave radiating said bales in said tunnel with set frequency and power microwaves and discharging processed bales from said tunnel.
  • the pressed cotton bales can be subjected,in said tunnel,to a combined processing by microwaves and cooling air to cool the outer surfaces of said cotton bales.
  • the apparatus for carrying out the above defined method comprises a loading platform consisting of an endless conveyor belt thereon the pressed cotton bales are successively arranged.
  • This conveyor belt conveys the pressed cotton bales to a processing tunnel therein there are arranged,according to any suitable set arrangement,a plurality of microwave generating units for microwave radiating the individual cotton bales conveyed to the tunnel,the cotton bales processed by microwave power and optionally by cooling air being discharged from the tunnel by means of a discharging conveyor belt.
  • the invention is based on the discovery that as cotton fibres,in bale form,are processed by microwaves,the textile properties of the fibres are not affected,while polluting substances such as fungi and micro-organism are destroyed.
  • microwave generating units For carrying out the inventive method,several types of microwave generating units have been tested and it has been found that optimum results could be obtained by using microwave generating units adapted to provide microwave beams having a frequency of 2,450 MHz with powers from 0.3 to 20 Kw.
  • this apparatus comprises three main components, i.e a loading conveyor belt 2, a processing tunnel 3 and an unloading conveyor assembly 4.
  • the pressed cotton bales are conveyed successively one by one,or in parallel rows,by means of the loading conveyor belt 8,in the direction of the arrow,to the inlet of the cotton bale processing tunnel 3,inside of which there are arranged a plurality of microwave generating units,indicated at the reference number 9,which are so arranged as to cover a broad radiating region,that is the conveying path of the cotton bales.
  • the loading conveyor assembly supported thirty cotton bales and operated as a supply and microwave dampening system.
  • the cotton bales loading system consisted of a bearing frame of stainless steel with a size of 15,000 x 2,000 x 1,100 mm.
  • the tunnel 3 consisted of an inner conveyor slat belt,indicated in the drawing at the reference number 10,with polythetrafluoroethylene (PTFE) supporting members,not shown,of the reinforced low loss type,in order to prevent said supporting members from excessively heating.
  • PTFE polythetrafluoroethylene
  • the tunnel supporting structure was made of AISI 304 stainless steel and defined a multimode microwave heating chamber.This tunnel or oven also comprised a forced air cooling assembly.
  • the microwave generating assembly which is the core of the method and apparatus according to the present invention,comprised,in this embodiment,ten microwave generating units of the MW 1540/03 type,the microwaves having a frequency of 2,450 MHz and a microwave power varying from 300 to 1,100 Watts,with ten additional microwave generating units of the MW 1540/01 type having a fixed microwave power of 1,200 Watts,and supplied from the mains at a voltage of 220V,50Hz.
  • the apparatus also included an unloading conveyor slat belt having substantially the same characteristics as the loading belt.
  • the overall size of the system was of 42,500 x 2,400 x 2,700 mm;in particular the length was of 42,500 mm,the width of 2,400 mm and the useful height at the inlet of the tunnel of 800 mm;the tunnel was lined by a thermally insulating mat and means for automatically adjusting the microwave power were provided,as well as several inspection doors.
  • the processed bales consisted of pressed cotton bales and two bales types,different in volume,density and weight were processed.
  • the first cotton bale type had a volume of 0.553 m3,a net weight of 185 Kg and a density of 334.5 Kg/m3;whereas the second type had a volume of 0.705 m3,a net weight of 220 kg and a density of 312 Kg/m3.
  • the moisture of both types was of about 6%.
  • bale types are conventional cotton bales,which can be directly processed as supplied by the bale supplyer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Mushroom Cultivation (AREA)

Claims (10)

  1. Procédé pour le traitement des balles de coton en vue d'enlever les fungi et les micro-organismes, caractérisé en ce que ledit procédé comprend le stade de transporter en continu les balles de coton pressées dans un tunnel de traitement, d'irradier par des micro-ondes lesdites balles dans ledit tunnel par des micro-ondes ayant une fréquence et une puissance réglée, et de décharger lesdites balles traitées dudit tunnel.
  2. Procédé selon la revendication 1, caractérisé en ce que ledit procédé comprend en outre le stade de traiter lesdites balles par de l'air de refroidissement.
  3. Procédé selon la revendication 1, caractérisé en ce que ledit procédé comprend en outre le stade de traiter lesdites balles par des micro-ondes et de l'air de refroidissement au même temps.
  4. Procédé selon la revendication 1, caractérisé en ce que ladite fréquence desdites micro-ondes se trouve entre 500 et 4.500Mhz.
  5. Procédé selon la revendication 4, caractérisé en ce que ladite fréquence est de 2.450 Mhz.
  6. Procédé selon la revendication 1, caractérisé en ce que ladite puissance desdites micro-ondes tombe entre 10 watts et plusieurs centaines de watts.
  7. Appareil pour effectuer le procédé selon la revendication 1, caractérisé en ce que ledit appareil comprend un système pour charger les balles de coton en vue de transporter les balles de coton qui doivent être traitées dans un tunnel de traitement, une pluralité d'unités génénatrices de micro-ondes dans ledit tunnel et un système de déchargement pour les balles de coton traitées pour enlever les balles de coton traitées dudit tunnel.
  8. Appareil selon la revendication 7, caractérisé en ce que lesdites unités génératrices de micro-ondes s'étendent à travers dudit tunnel d'une relation écartée.
  9. Appareil selon la revendication 7, caractérisé en ce que dans ledit tunnel il y a arrangé une unité génératrice d'air, au moins.
  10. Appareil selon la revendication 7, caractérisé en ce que ledit appareil comprend en outre, dans la région de sortie dudit tunnel, un système de refroidissement des balles de coton.
EP89830501A 1988-12-21 1989-11-17 Procédé et appareil pour le traitement des balles de coton en vue d'enlèvement de champignons et des micro-organismes Expired - Lifetime EP0375629B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89830501T ATE86681T1 (de) 1988-12-21 1989-11-17 Verfahren und vorrichtung zur behandlung von baumwollballen zwecks beseitigung von pilzen und mikroorganismen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2304588 1988-12-21
IT8823045A IT1227705B (it) 1988-12-21 1988-12-21 Procedimento ed apparecchiatura, particolarmente studiati per sottoporre cotone in balle pressate ad un trattamento di sterilizzazione, atto ad eliminare funghi e microrganismi, presenti nel cotone stesso

Publications (2)

Publication Number Publication Date
EP0375629A1 EP0375629A1 (fr) 1990-06-27
EP0375629B1 true EP0375629B1 (fr) 1993-03-10

Family

ID=11203217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830501A Expired - Lifetime EP0375629B1 (fr) 1988-12-21 1989-11-17 Procédé et appareil pour le traitement des balles de coton en vue d'enlèvement de champignons et des micro-organismes

Country Status (4)

Country Link
EP (1) EP0375629B1 (fr)
AT (1) ATE86681T1 (fr)
DE (1) DE68905315D1 (fr)
IT (1) IT1227705B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO791997A0 (en) * 1997-07-16 1997-08-07 Illawarra Technology Corporation Limited Processing wool bales
BR0110507B1 (pt) * 2000-05-01 2010-10-19 processo para o tratamento térmico de carga de alimentação de fibras em fardos.
US6557267B2 (en) 2000-05-01 2003-05-06 Freddy Wanger Method for the heat treatment of bales
CN112219642A (zh) * 2020-08-03 2021-01-15 承德楚迈农业科技有限公司 一种食用菌培养基微波灭菌设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1133286B (de) * 1959-10-06 1962-07-12 Fritz Hadwich Dipl Ing Verfahren und Vorrichtung zum Ausscheiden von festen und in der Hitze erweichbaren Fremdkoerpern aus einem Faserflor
LU62048A1 (fr) * 1970-11-12 1972-07-26
DE3538899A1 (de) * 1985-11-02 1987-05-07 Hauni Werke Koerber & Co Kg Anlage zur mikrowellenbehandlung eines gutes
DE3819883A1 (de) * 1988-06-03 1989-12-07 Rieter Ag Maschf Verfahren und vorrichtung zur behandlung von mit honigtau befallene baumwolle

Also Published As

Publication number Publication date
EP0375629A1 (fr) 1990-06-27
IT8823045A0 (it) 1988-12-21
DE68905315D1 (de) 1993-04-15
IT1227705B (it) 1991-04-23
ATE86681T1 (de) 1993-03-15

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