A electrostatic separation Electrostatic separation is based on the electrical properties (conductivity and capacitance) of minerals, and the separation of minerals by the different electrostatic forces (attraction and repulsive forces) that minerals receive in electrostatic fields. The ability of a mineral to conduct electricity is called the conductivity of a mineral. The conductivity of minerals depends to a large extent on the type of chemical bonds. Mineral having a metallic bond, in the structure due to the presence of free electrons, the electrical conductivity and strong; ionic or covalent bonds mineral weakly conductive or non-conductive. Conductive mineral into three: a good conductor of minerals (natural gold, natural copper, graphite, etc.), a semiconductor minerals (pyrite, galena, arsenopyrite, chalcopyrite, sphalerite, etc.), mineral non-conductor ( Quartz , feldspar , mica , calcite , gypsum , asbestos, etc.). B dielectric separation Dielectric separation is a method of separating minerals based on differences in the dielectric constants of minerals. Place an appropriate amount of the sample in a suitable dielectric solution and insert it into the separation electrode. Under the electric field, the mineral particles with a dielectric constant greater than the dielectric liquid are adsorbed to the electrode, and the mineral particles with a dielectric constant smaller than the dielectric liquid are Repelling, thereby separating minerals having different dielectric constants from each other. The electric field can be a low frequency electric field or a high frequency electric field. With a high-frequency dielectric separator, conductive minerals may be present in the ore sample, and in the low-frequency dielectric separation, there may be no conductive minerals, which may cause a short circuit. Commonly used dielectric fluids include carbon tetrachloride, ethanol, distilled water, and the like. Mineral separation must be achieved when the separated minerals have a dielectric constant difference greater than 2 to achieve better separation. At urban construction project, surface mining, quarries ,construction work sites,foundation pit construction, road slope protection project etc.
5.Piston tramming motor, special process casted track shoe for stronger tramming traction force & more stable quality.
6.Construction Features:
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1. This drill rig upgrades tramming components, hydraulic system, feed beam, rotary head and whole rig chassis to optimize the functional capacity of the drill rig.
2. The upgraded rig with improved features of strong climbing ability, large rotation torque & long life motor is widely applicable to various surface mining environment.
3. With larger displacement single motor, compact size & large rotation torque, the rotary head adjustable according to different work conditions & requirement, greatly increasing drilling efficiency.
4.All controls integrated on the control panel for convenient operation, higher work efficiency & lower drilling cost, safer and more comfortable operation.
→Three-wing bit drilling, mud discharge. It is suitable for high speed drilling in soil layer sand layer, etc..
→Air down-hole hammer drilling, air slag discharge.It is suitable for construc tion of rock layer and broken layer.
→Drilling with hydraulic hammer at bottom of hole, mud discharge The utility model is suitable for the construction of broken layer sand-egg layer and other strata with high water content.→Casing drilling.
→Combined drilling of drill pipe and casing.
The electro-optic separation method is separated according to the electrical properties of minerals, and is divided into electrostatic separation and high-frequency dielectric separation.