Characteristics of the section mining method of the empty field mining method

(1) The subsection mining method is also a kind of empty field mining method. It is divided into several sections along the vertical direction of the ore block on the basis of dividing the ore block, and the mine room is arranged at each level of the section. And the ore, the ore collected in each section, is transported from the miner's roadway of each section. That is to say, each section is rocked and mined. Each distribution of the segmentation method is a separate recovery unit. ※ Sectional rock drilling and section mining.
(2) After the mining of the mining section of the subsection method, the pillars of this section can be immediately recovered (top pillar and inter-column) and the goaf can be treated at the same time.

Optical Fiber 1-color Pyrometer

This classification includes one color infrared pyrometers which consist of lens, fiber optics and processing components. Fiber optic can bear high temperature up to 250℃ and do not need additional cooling. It has strong casing, use stainless steel lens(with air purge functions), die cast aluminum housing, protection grade is IP54. One color pyrometer determine the object temperature by receiving the sum of the narrow-band radiation energy, around(0.85~1.1)μm, emitted by the object. product detector nornally use si. Pyrometers can be widely used in metallurgical industry (wire rod, hot rolled plate,forging) and forging industry, heat treatment, induction heating, monocrystalline silicon and polycrystalline silicon,etc. SMART-F series is not only suitable for general industrial occasions of temperature measurement, but also suitable for installation in occasions with strong electromagnetic interference and high environmental temperature.

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