Some low-grade tungsten concentrates produced by tungsten preparation plants do not meet the quality standards. The grade of WO 3 is 5% to 30%, and other impurities are also relatively high. Mainly for low-grade ore of tungsten fine mud, tungsten, tin ore, tungsten-iron sand and other refractory co
The mining methods of diatomaceous earth are open pit mining and underground mining. The open-pit mining methods include: Jilin Dunhua Gaosongshu Mine, Jilin Meihekou Qujia Street Mine, and Jilin Huadiandian Diatomite Mine. The county is located in the open-pit mine of small-scale soil mining. Pione
The electric detonation method should be carried out as follows: 1. After the detonator is inspected, the wire is short-circuited. It is best to wrap the short-circuit head with industrial tape, put it into a special box, transport it to the blasting site according to the design requirements, and
Ren Ge, Key Laboratory of Light Beam Control, Institute of Optics and Electronics, Chinese Academy of Sciences, made a new progress in the research of phase difference technology. The phase space difference technique of laminated space modulation was proposed for the first time. The pupil plane of
Yang Xiaotao, a researcher at the National Center for Geological Experiments and Testing Center, began working on atomic spectroscopy and instrument development in 1970, and it has been more than 40 years. Yang Xiaotao jokes that he is a "veteran" of the spectrum. The production
Status of purchase restriction On December 23, 2010, Beijing officially announced the "Interim Regulations on the Control of the Number of Small Passenger Cars in Beijing", becoming the first city in China to issue an automobile purchase restriction order. There are two aspects
Experts say that Tanabata is a sad day not suitable for Valentine's Day March three more suitable diesel generator | diesel generator price / 2012-08-23 Sad days are not suitable for Valentine's Day. Experts suggest: Chinese Valentine's Day, March 3 is more suitable than Chinese
When the water partial separation titanate, in part of smaller particles of metatitanic acid through the filter layer and into the filtrate (i.e., the spent acid), and to improve the recovery rate must recover this metatitanic acid. A plurality of plastic rice settling tanks are generally used for
Gray sand brick May Copper Mountain mine tailings discharged annual production of 75 000 t, is currently stockpiling capacity of 1.1 million t, this copper mine tailings are mainly of quartz sand by the dozen mineral which, after technical analysis to prove No comprehensive recovery value. The min
Impurities in the crude lead, bismuth, silicon into the anode mud of electrolytic lead hydrofluoric acid. After the anode mud is reduced and smelted, the bismuth enters the precious lead together with gold and silver , is charged into a silver furnace, and is oxidized to form slag, and the rutheniu
In order to gain insights into the industrial development in southern central Taiwan, and establish a working relationship, from December 22nd to 24th, Li Ronggyong, a Taipei office of the Electrical and Mechanical Commerce Chamber, went to Kaohsiung to conduct business research. The resea
Although the vibration probability sieve has the above three types, it is screened by the principle of large sieve hole, multi-layer sieve surface and large inclination angle. The general working principle and structure are shown in the following figure. The screen box is usually hoisted on the fac