Coal mining Safety lamp
Author: Source: Date:2021-09-15 16:46:43
Coal mining safety lamp, a lighting device which used in underground mines & open mines, in there is dangerous from the explosion of flammable gas or dust.
In the late 18th century of England has a demand for miner’s lamp that would not ignite the gas methane (firedamp), a common hazard of English coal mines.
In 1813 an Irish physician, invented a lamp that the oil-fuelled flame was separated from the atmosphere by water seals. But this required continual pumping for operation.
In 1815 the English engineer George Stephenson invented a lamp that kept explosive gases out by pressure of the flame’s exhaust and held the flame in by drawing in air at high speed.
In 1815 Humphry Davy invented the lamp that bears his name. Davy used a two-layer metal gauze chimney to surround and confine the flame and to conduct the heat of the flame away.
Electric hand and cap lamps were used in mines in the early 1900s and by the middle of the 20th century were used commonly in mines.
Email： [email protected]
Address：Rm17E, ZhuJiang International Center, Long Gang District, Shenzhen City, China