Lithium, beryllium, niobium, tantalum ore industry requirements, "rare metal mine geological exploration specification (Trial)", the development of the lithium, beryllium, niobium, tantalum deposit industrial index reference issued in China in 1984. Among them, lithium, beryllium cutoff grade and industrial grade mineral deposits are divided into stone hand and machine ores, and were determined grade index. Hand selection and machine selection ore division, according to production practice experience, if the spodumene particle size in the ore body is >3cm, the ore grade is above 2%~3%; the beryl particle size is >0.5cm, the ore grade is 0.1%. ~ 0.2% or more, suitable for hand selection, divided into hand-selected ore, and hand-selected mineral reserves calculation. Niobium, tantalum iron ore particle diameter> 0.3cm, in the mining process may be included with hand-selected. Hand-selected ore tailings are machine-selected and not suitable for hand-selected ore, all of which are machine-selected ores.
Lithium, tantalum, niobium, tantalum, etc. are sometimes associated with each other to form a comprehensive deposit, or associated with polymetallic deposits such as tungsten and tin , and have comprehensive mining and comprehensive utilization value, and should be comprehensively evaluated in the geological exploration process.
Winch Hoist is a open winch used as a hoist for Double Girder Overhead Crane, Double Girder Gantry Crane, etc. It can be also used as the gate hoist for hydropower station dam. The open winch hoist is an electric crane widely used in buildings, bridges, metallurgy, mining, etc. for lifting of materials, hoisting projects and dragging of various materials and equipment.
Open winch hoist is also used to pull or lift heavy objects in road and bridge projects, civil construction, mining area, factory, port, marine, etc. For example, Installation and disassembly of large or extreme large steel structure and machinery equipment, reinforce concrete, drag ships, etc.
While the gate winch hoist is for hoisting spillway gates, tailrace gate and other gate of hydropower plant. The gate winch hoist is mainly used for hydraulic equipment transport, installation and maintenance of hydroelectric generating units, hoisting of floodgates, trash rack etc.
Capacity: 1t ~ 1000t
Lifting height: customized
Lifting speed: customized
Voltage: 220v/380v/400v/415v
Electric: Siemens or Schneider electrical system
Safety: Current overload protection, voltage lower protection
Winch Hoist
Hoist Winch,Floodgate Hoist,Open Winch Dam Hoist,Hydropower Plant Gate Hoist
Henan Weihua Heavy Machinery Co., Ltd. , https://www.weihuacranefactory.com