[article]
| Titre : |
Refining 'bucket chemistry' through vessel automation |
| Type de document : |
texte imprimé |
| Auteurs : |
Steve Hodges, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 29-34 |
| Langues : |
Anglais (eng) |
| Catégories : |
Automatisation
Cuirs et peaux -- Industrie
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The wet end of the tannery is probably its most unattractive face - often dirty, noisy and damp, with an odorous and corrosive atmosphere. Technology has been slower to penetrate here than in other more salubrious areas. The wet end, however, is the heart of the tannery, where leather quality is made or lost, and the automation of drums and process vessels should now be regarded as vital for the modern leather-making industry. |
| Note de contenu : |
- Two routes to follow
- The mechanical action
- Getting loaded
- Adding the chemicals
- Semi-robotic pH measurement
- Affordable computing
- Fig. 1 et 2 : Local drum control panel by Vallero/Incotec, housed in a fully sealed stainless steel cabinet. Pressure-sensitive "pushbuttons" and numeric keys are protected by a heavy clear membrane.
- Fig. 3 : Water mixing unit by Dose incorporating linked butterfly valves with pneumatic actuator.
- Fig. 4 : Water mixing unit by Olcina with electrically actuated valves.
- Fig. 5 : Chemicals in palletised IBCs can be racked to form a "tank farm", with gravity or pump feed to the automated mixing system.
- Fig. 6 : Twin chemical mixing stations by Olcina, supplying 32 chemicals to 18 process vessels.
- Fig. 7 : Stainless chemical mixing vessel from Vallero, with electric agitator and access hatch.
- Fig. 8 : Polypropylene chemical addition holding tank from Italprogetti.
- Fig. 9 : Bulk chemical storage in exterior tanks can be linked to the automation system, controlling temperature, monitoring levels and dispensing.
- Fig. 10 : Semi-automated pH measurement station from Olcina. The probe is carried from the buffer solution to the sample and back again, via a washing position.
- Fig. 11 : The pH probe at the washing position, showing the two water spray nozzles and the splash plate. |
| En ligne : |
https://drive.google.com/file/d/1DeLvfPAdF6AS4VR7sR8LrvZVJeTPk8us/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32225 |
in WORLD LEATHER > Vol. 15, N° 4 (06-07/2002) . - p. 29-34
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Refining 'bucket chemistry' through vessel automation in WORLD LEATHER, Vol. 15, N° 4 (06-07/2002)
