WO2017035680A1 - Système de ventilation par flux d'air croisé basse énergie pour installation d'électro-obtention et procédé de ventilation par flux d'air croisé basse énergie - Google Patents
Système de ventilation par flux d'air croisé basse énergie pour installation d'électro-obtention et procédé de ventilation par flux d'air croisé basse énergie Download PDFInfo
- Publication number
- WO2017035680A1 WO2017035680A1 PCT/CL2016/050049 CL2016050049W WO2017035680A1 WO 2017035680 A1 WO2017035680 A1 WO 2017035680A1 CL 2016050049 W CL2016050049 W CL 2016050049W WO 2017035680 A1 WO2017035680 A1 WO 2017035680A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- injectors
- electro
- flat
- cells
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
- F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
Definitions
- the present invention relates to a ventilation system by applying a cross flow of low energy air, which allows the removal of pollutants generated by the electro-obtaining process of copper or other metals.
- the electro-obtaining process of copper or other metals is based on the application of an electric potential difference on two conductive metal plates submerged in a solution called electrolyte, where the metal to be obtained is in solution.
- cupric sulfate (CuSO4) from leaching is introduced into an electrolytic cell, which is composed of lead anodes and stainless steel cathodes.
- the cell described is schematized in Figure 1.
- a power source (101) generates the difference in electrical potential between the electrochemical anode (102) and the electrochemical cathode (103). When applying the electric potential, the deposition of the metal ions in the electrochemical cathode occurs.
- the oxygen in the form of bubbles (104) rises to the free surface of the electrolyte, where the bubble bursts producing microscopic aerosols (105), which are subsequently transported by the movement of air into the spacecraft.
- This phenomenon is known as "acid mist", since in i
- the small droplets in suspension have the same electrolyte composition, mostly containing sulfuric acid and copper sulfate in solution.
- the acid mist is very harmful, since aerosols travel through the air to the operator, causing irritation of the skin, eyes, mucous membranes, teeth and respiratory tract, since the smallest drops of mist (of the order of 20 pm) they are difficult to eliminate, reaching the lungs of the operators without modification, being able to produce a great damage in the health, besides producing high levels of corrosion in the environment damaging the structure of the buildings, also affecting the machinery of the plant; Therefore, these emissions are heavily regulated by health and environmental control entities (Electro Obtainment Plant Operation Training, ENAMI - Vallenar Plant, Dr. Clark Vargas R., Department of Chemical Engineering University of Santiago de Chile).
- the current state of the art to mitigate acid mist emissions resulting from the electro-obtaining process of copper or other metals presents the following solutions: i) mitigation of emissions from the emitting source (electro-obtaining cells) by use of surfactants (FC-1 100®, quillay, etc.) and use of mechanical barriers (polypropylene pellets), among others; I) use of extractor hoods on the cells (SAME® High Energy Hoods, Outotec® System); i ⁇ ) local ventilation over each of the cells (LateralVex® system, SELE® system); iv) Ventilation by cross air flow over the cells (DESOM® system).
- the system comprises a plurality of primary injectors distributed in an arrangement for high-speed air supply, which are arranged on electro-obtaining cells inside electro-obtaining ships. Said injectors generate a cross horizontal velocity field over the cells.
- An arrangement of secondary injectors or lattices that supply air at low speed, is responsible for providing a supply of clean air, from the outside, to reduce the incorporation of contaminated air into the flow of air carried by the primary injectors.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Central Air Conditioning (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CL2015002477A CL2015002477A1 (es) | 2015-09-04 | 2015-09-04 | Sistema de ventilación por flujo de aire cruzado de baja energía para naves de electroobtención y método de ventilación por flujo de aire cruzado de baja energía. |
CL2477-2015 | 2015-09-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017035680A1 true WO2017035680A1 (fr) | 2017-03-09 |
Family
ID=56610062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CL2016/050049 WO2017035680A1 (fr) | 2015-09-04 | 2016-09-05 | Système de ventilation par flux d'air croisé basse énergie pour installation d'électro-obtention et procédé de ventilation par flux d'air croisé basse énergie |
Country Status (3)
Country | Link |
---|---|
CL (1) | CL2015002477A1 (fr) |
PE (1) | PE20180847A1 (fr) |
WO (1) | WO2017035680A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2997132A (en) * | 1956-03-23 | 1961-08-22 | Svenska Flaektfabriken Ab | Method for the ventilating of plants for the manufacture of aluminium or similar products |
US3470811A (en) * | 1968-02-05 | 1969-10-07 | Wellman Lord Inc | Storage building |
US3974754A (en) * | 1974-12-04 | 1976-08-17 | Powlesland Engineering Limited | Controlled fluid flow systems |
FR2731267A1 (fr) * | 1995-03-03 | 1996-09-06 | Sarl Tuffigo | Dispositif pour augmenter le mouvement de l'air dans les batiments d'elevage |
-
2015
- 2015-09-04 CL CL2015002477A patent/CL2015002477A1/es unknown
-
2016
- 2016-09-05 WO PCT/CL2016/050049 patent/WO2017035680A1/fr active Application Filing
- 2016-09-05 PE PE2018000337A patent/PE20180847A1/es not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2997132A (en) * | 1956-03-23 | 1961-08-22 | Svenska Flaektfabriken Ab | Method for the ventilating of plants for the manufacture of aluminium or similar products |
US3470811A (en) * | 1968-02-05 | 1969-10-07 | Wellman Lord Inc | Storage building |
US3974754A (en) * | 1974-12-04 | 1976-08-17 | Powlesland Engineering Limited | Controlled fluid flow systems |
FR2731267A1 (fr) * | 1995-03-03 | 1996-09-06 | Sarl Tuffigo | Dispositif pour augmenter le mouvement de l'air dans les batiments d'elevage |
Also Published As
Publication number | Publication date |
---|---|
PE20180847A1 (es) | 2018-05-16 |
CL2015002477A1 (es) | 2016-06-03 |
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