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Traditional Geocache

Espessador de Lamas

A cache by Sphinx_n_Sophie
Hidden : 4/30/2013
In Castelo Branco, Portugal
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size: small (small)

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Geocache Description:



Os primeiros registos oficiais da exploração nas Minas da Panasqueira remonta ao final do sec. XIX, sendo a primeira concessão de 25 de Novembro de 1898.

A separação do minerio foi feita desde 1904 até 1996 na lavaria do Rio (cabeço do Pião), aproveitando a proximidade do rio Zêzere como fornecimento de água para o processo e como local de descarga de águas.

As lamas resultantes do processo são depositadas em barragens, conhecidas localmente como barragens das lamas, no entanto para que o processo final de secagem dessas lamas seja mais rapido e eficiente torna-se necessario proceder ao engrossamento das lamas, reduzindo a água contida nas lamas ao minimo possivel mas mantendo a capacidade de serem bombeadas para facilitar o seu transporte.

Este processo era feito num tanque espessador de lamas, as águas da lavagem do minerio eram depositadas aqui e por processos de gravidade as lamas depositam-se no fundo do tanque enquanto a água limpa fica a superficie, era adicionada cal de modo a neutralizar o pH da água antes de a devolver ao rio.

As lamas depositadas eram posteriormente bombeadas para as barragens de lama onde terminavam o processo de secagem.


The first official records of exploration in Minas Panasqueira dates back to the end of the 19th Century, the first concession dates back from November 25, 1898.

The separation of the ore was made from 1904 until 1996 in the wash of Rio (Cabeço do Pião), taking advantage of the proximity of the river Zêzere as water supply for the process and to water discharge.

The sludge resulting from the process are deposited in dams, reservoirs locally known as barragem das lamas, however to alow that the final process of drying these slurries can be done faster and more efficiently it becomes necessary to do sludge thickening, reducing the water content of the sludge to the minimum while maintaining the ability to pump it facilitating their transportation.

This process was done in a sludge thickening tank, the water from the separation of the ore was deposited here and by processes of gravity the sludge settle to the bottom of the tank while the water stays at the surface, lime was added to neutralize the water pH before returning it to the river.

The slurries were then pumped to the mud dams where they finish the drying process.

A Cache

Numa visita ao Cabeço do Pião em busca de locais interessantes para a colocação de caches encontramos este local abandonado da historia da Mina.

Aquilo que à primeira vista nos pareceu uma ETAR, revelou-se durante a pesquisa para a criação desta listting, um Espessador de Lamas.

Esta cache pretende mostrar-vos mais umas ruinas da industria mineira da Minas da Panasqueira.

In a visit to Cabeço Pião seeking places for hidding caches found this abandoned spot in the history of the mine.

What at first glance looked like a normal water treatment facility, revealed it self as a sludge thickner during the research for the creation of this listting.

This cache intention is to show you some more ruins of the mining industry of Minas Panasqueira.


This page was generated by GeoPT Listing Generator

Additional Hints (Decrypt)

[PT]Ab Prageb
[EN] Va gur pragre

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)

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Current Time:
Last Updated: on 11/9/2014 1:14:15 PM (UTC-08:00) Pacific Time (US & Canada) (9:14 PM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum