Guide The characteristics of the mining and mining method are: the stage is divided into ore blocks, and the ore blocks are further divided into mine houses and pillars for secondary recovery. The mining room is stratified and collected from bottom to top. Each time the ore that has collapsed is r
Tellurium is L1 J 1782 Nian Lai Hing Stein found in the gold-containing ore, there are also claims that in 1798 MH carat Puluo Zi in a white metal was first discovered tellurium. Selenium and tellurium, rhenium and the like are generally known as "rare elements", "dispersing element&
White tungsten has good floatability and is usually treated by re-election-flotation combined method. Scheelite flotation, and sulphide ore mainly to solve the problem of separation and non-metallic ore, specifically: 1. Separation of white tungsten from sulfide ore. Flotation of scheelite prior
China is a large country of silica minerals. A variety of siliceous material deposits have been developed in China, but high-grade deposits (SiO2 content > 99.95%) are quite rare. Purity quartz is purified siliceous raw mineral depth, widely used in a variety of glass, plastic materials microele
The automatic parallel and grid-connected control technology of the diesel generator set and the communication technology that realizes the “three remote* (ie remote control, telemetry and remote signaling) of the generator set and the host computer have been considered as the difficult tec
Sometimes generator shutdowns occur during the use of generators. When this happens, we need to find and avoid them in time. What are the precautions for generator shutdown? 1, check the diesel generator for "three leakage" phenomenon, including oil, fuel, coolant 2. Turn off the gener
The network camera has already been popular at present, among them many common idioms involved still do not understand, we come to understand the security network camera professional technical term explanation now. Video section Resolution: divided into display resolution and image resolution. I
More iron ore dressing plant because he did not mine, beneficiation process backward, outdated equipment rough, small-scale, low-grade ore, low sales prices, sales difficulties and other reasons, so that this type of concentrator at the edge of small profits and losses. How to make such enterprises
Copper ore chloro When I was studying Western economics, I couldn’t figure out why foreign economic theory always went to extremes, and there was a very obvious tendency. It can be said that there are obvious realities and impossibility. The inventors and developers of the theory should u