CH226503A - Accelerated drying process. - Google Patents

Accelerated drying process.

Info

Publication number
CH226503A
CH226503A CH226503DA CH226503A CH 226503 A CH226503 A CH 226503A CH 226503D A CH226503D A CH 226503DA CH 226503 A CH226503 A CH 226503A
Authority
CH
Switzerland
Prior art keywords
volatile organic
organic acid
acid
drying
drying process
Prior art date
Application number
Other languages
French (fr)
Inventor
Mayor Jean
Original Assignee
Mayor Jean
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 Mayor Jean filed Critical Mayor Jean
Publication of CH226503A publication Critical patent/CH226503A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00Drying solid materials or objects by processes not involving the application of heat
    • F26B5/005Drying solid materials or objects by processes not involving the application of heat by dipping them into or mixing them with a chemical liquid, e.g. organic; chemical, e.g. organic, dewatering aids

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Description

  

  Procédé de séchage accéléré.    Le séchage artificiel des matières, en par  ticulier à     structure        capillaire,    se heurte tou  jours; au     gros        obstacle    -de la     rétention    de  l'eau.  



  Les procédés usuels de séchage ;à l'aide de  gaz chauds conduisent à une     consommation     exagérée de     combustible.     



  Lorsque ces matières ne peuvent être  désagrégées par     action    mécanique, comme  dans le cas de produits relativement ténus ou  dans ,le cas de     matières    qui ne peuvent être  déchiquetées sans perdre leur valeur mar  chande, on doit     recourir    à d'autres moyens       pour    activer leur processus -de séchage si l'on  tient à utiliser judicieusement les     calories    que  dégagent les gaz de séchage.  



  Dans le procédé de séchage par gaz chaud  selon la     présente        invention,    on effectue le  séchage en présence d'un acide organique  volatil.  



  Des     expériences    ont en effet .démontré que  l'on parvient à sécher plus rapidement des  matières telles que les fourrages: verts, lé-         gumes,        fruits    et toutes les matières de nature  ligneuse ou     fibreuse    d'origine végétale ou  synthétique, si le séchage se fait en présence  d'un acide     organique        volatil.     



  Le procédé s'applique aussi à     ,des    matières  qui ne sont pas de provenance organique.  Parmi les acides organiques utilisables,  on peut employer spécialement l'acide for  mique et l'acide acétique.  



  Ces acides, sont     @de    nature     telle    que, lors  qu'il     s'agit    d'aliments, ils ne peuvent porter  préjudice à la     digestibilité    des produits sé  chés. Au contraire, la     présence    de traces de  ces acides .dans les produits séchés ne peut  être qu'un facteur améliorant la     conservabi-          lité    des produits séchés et peut même éloi  gner les rongeurs et les ferments.  



  La présence de l'acide organique volatil  lors du séchage peut être assurée de .diffé  rentes façons, par exemple:  10 par immersion -des matières à sécher  dans une solution     d'acide    ou par     vaporisation     d'acide sur les     matières    à sécher,      20 par vaporisation d'acide ou formation  d'un brouillard à l'intérieur de l'installation  de séchage,  <B>30</B> par .séchage à l'aide d'un courant d'air  chaud:  a)     charbé    de vapeurs d'acide,  b) chargé de brouillard d'acide.



  Accelerated drying process. The artificial drying of materials, in particular with a capillary structure, always comes up against; the big obstacle - water retention.



  The usual drying processes using hot gases lead to an excessive consumption of fuel.



  When these materials cannot be broken down by mechanical action, as in the case of relatively thin products or in the case of materials which cannot be shredded without losing their market value, other means must be used to activate their process. -drying if one wishes to judiciously use the calories given off by the drying gases.



  In the hot gas drying process according to the present invention, the drying is carried out in the presence of a volatile organic acid.



  Experiments have in fact shown that it is possible to dry materials such as fodder more quickly: greens, vegetables, fruits and all materials of a woody or fibrous nature of vegetable or synthetic origin, if the drying takes place. made in the presence of a volatile organic acid.



  The process also applies to materials which are not of organic origin. Among the organic acids which can be used, there may especially be employed formal acid and acetic acid.



  These acids are of such a nature that, when it comes to food, they cannot prejudice the digestibility of the dried products. On the contrary, the presence of traces of these acids in the dried products can only be a factor improving the preservability of the dried products and can even keep rodents and ferments away.



  The presence of the volatile organic acid during drying can be ensured in various ways, for example: by immersing the materials to be dried in an acid solution or by vaporizing the acid on the materials to be dried, 20 by vaporization of acid or formation of a mist inside the drying installation, <B> 30 </B> by drying with a stream of hot air: acid vapors, b) charged with acid mist.

 

Claims (1)

REVENDICATION: Procédé de séchage accéléré à l'aide de ,gaz chaud, caractérisé par le fait que le #é- chage a lieu en présence d'un acide volatil. SOUS-REVENDICATIONS 1. Procédé selon la revendication, caracté risé en ce que l'acide organique volatil est introduit dans le processus de séchage par immersion de la matière à sécher dans un bain contenant de l'acide organique volatil. 2. CLAIM: Accelerated drying process using hot gas, characterized in that the #exage takes place in the presence of a volatile acid. SUB-CLAIMS 1. A method according to claim, characterized in that the volatile organic acid is introduced into the drying process by immersion of the material to be dried in a bath containing volatile organic acid. 2. Procédé selon la revendication, caracté risé en ce que l'acide organique volatil est mis en contact avec la matière à sécher, par pulvérisation. 3. Procédé selon la revendication, carac térisé en ce que l'acide organique volatil est introduit par pulvérisation au sein du dispo sitif de séchage de façon à charger les gaz chauds de vapeurs d'acide. 4. Procédé selon la revendication, caracté risé en ce que l'acide organique volatil est introduit au sein du dispositif de séchage en eliargeant préalablement le courant des gaz chauds de vapeurs de l'acide organique volatil. 5. Process according to claim, characterized in that the volatile organic acid is brought into contact with the material to be dried by spraying. 3. Method according to claim, charac terized in that the volatile organic acid is introduced by spraying into the drying device so as to charge the hot gases with acid vapors. 4. Method according to claim, characterized in that the volatile organic acid is introduced into the drying device by first expanding the stream of hot gases of volatile organic acid vapors. 5. Procédé selon la revendication, caracté risé en ce que l'acide organique volatil est de l'acide formique. G. Procédé selon la revendication, carac térisé en ce que l'acide organique volatil est de l'acide acétique. Process according to claim, characterized in that the volatile organic acid is formic acid. G. A method according to claim, characterized in that the volatile organic acid is acetic acid.
CH226503D 1941-09-23 1941-09-23 Accelerated drying process. CH226503A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH226503T 1941-09-23

Publications (1)

Publication Number Publication Date
CH226503A true CH226503A (en) 1943-04-15

Family

ID=4454597

Family Applications (1)

Application Number Title Priority Date Filing Date
CH226503D CH226503A (en) 1941-09-23 1941-09-23 Accelerated drying process.

Country Status (1)

Country Link
CH (1) CH226503A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402530A1 (en) * 1989-06-12 1990-12-19 Agfa-Gevaert N.V. A process of cooling a heated polyethylene terephthalate film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402530A1 (en) * 1989-06-12 1990-12-19 Agfa-Gevaert N.V. A process of cooling a heated polyethylene terephthalate film

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