Mine geological work is an indispensable basic technical work in mining. It refers to the geological work directly for production in the production area or mining area of ​​the deposit in the mining process, according to the needs of the mine work. The geological work of the mine geol
Production dust is generally classified into the following categories according to their nature: An inorganic dust: mineral dust such as silica, asbestos, talc, coal and the like; gold attributes dust, such as iron, tin, aluminum, manganese, lead, zinc and the like; artificial inorganic dust, such
Recently, the US Consumer Product Safety Commission (CPSC) formally adopted a new third-party testing and certification requirement for phthalates to ensure that children's toys and child care products comply with US federal regulations. The acid salt limit, which will take effect on D
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Most people in the country have a preference for “being foreign and respecting foreigners†and believe that the products of foreign brands must be better than Chinese brands. Not long ago, a program broadcast on CCTV's "Consumer Claims" column surprised many people. The
Raptors crossing the river has always been a suspense. In the past two months, the whirlwind of electric vehicle upstart Tesla's debut in China has remained strong, but competitors have begun to fight back. At the Buffett shareholders' meeting held yesterday at the Chinese investor
From 20 to 20 January 2018, the 2018 Dakar Rally will be held in Peru, Bolivia and Argentina in South America. The current Dakar Rally has very special significance for this veteran event: this is Dakar's 40th tournament and also the 10th year Dakar moved to South America. Although Dakar
In order to determine as a gold - arsenic sulphide concentrate feed - preparation stage cyanidation step chlorination roasting process results, and study the phase transition sequence of the structural transformation of arsenic pyrite produced during the heat treatment, and with a noble metal sulph
The prediction of mine flooding refers to determining the danger degree of mine flooding according to the hydrogeological data of geological exploration and the special water hazard survey data before mining, and compiling the mine flood forecasting map. I. Determination of the danger level of min
Many of ore gold ore containing arsenic, often arsenopyrite (arsenic pyrite) exists in the form of inconvenience to the extraction of gold is usually pretreated. It is easy to produce arsenic-containing gas and arsenic-containing wastewater in the pretreatment process. The arsenic-containing wastew
Mining is the oldest industry in our country, but also is the basic industry of national economy, involving agriculture, light industry, chemical industry, metallurgy, machinery fields, construction, energy, transportation, national defense and people's daily lives, and It has penetrated into t
After the water source is detected, it is not possible to release water due to conditions, or it is possible to release water, but it is not reasonable. Waterproof measures should be taken to isolate the water source and intercept the water flow. First, isolate the water source. The measures for i