Table of Contents
What type of light source would be safest to use in buildings or mines that could be filled with explosive gas?
Open flame lamps
Open flame lamps could ignite flammable gases which collected in mines, causing explosions; safety lamps were developed to enclose the flame and prevent it from igniting the surrounding atmosphere. Flame safety lamps have been replaced in mining with sealed explosion-proof electric lights.
What are the lighting sources in mines?
The trend in mine lighting is to use more efficient light sources. These are the four high-intensity discharge (HID) sources called mercury vapour, metal halide, high-pressure sodium and low-pressure sodium. Each requires a few minutes (one to seven) to come up to full light output.
How do you make mines safer?
The following 18 tips can increase the safety of your mining facility.
- Prioritize Planning.
- Maintain Rigorous Standards.
- Wear Personal Protective Gear.
- Pay Attention to Equipment Upkeep.
- Improve Visibility.
- Take Lifting Precautions.
- Manage Vibration and Noise Levels.
- Account for Harsh Temperatures.
Which type of mining is safer for miners?
Surface mines
Surface mines offer advantages and disadvantages when compared to underground mining. Amongst the advantages are that it is cheaper, can recover more of the resource (usually up to 100\% within the mining excavation), is safer and can use larger-scale mining equipment offering higher production rates.
What were miners lamps used for?
Created in 1815, it was designed to be lit safely for miners to use without allowing the heat from the flame to explode the concentration of methane gas often found as miners dug deeper. Humphry Davy miners’ lamps.
Who uses safety lamp?
safety lamp, lighting device used in places, such as mines, in which there is danger from the explosion of flammable gas or dust. In the late 18th century a demand arose in England for a miner’s lamp that would not ignite the gas methane (firedamp), a common hazard of English coal mines.
What is flame safety lamp?
A lamp, the flame of which is so protected that it will not immediately ignite combustible gases. An explosive or flammable mixture of gas entering the lamp will be ignited by the flame, but the flame of combustion will not pass through the cool gauze and ignite the gas outside the lamp. …
What are the standard of lighting in underground & opencast mines?
In opencast mining efficient lighting system is required while working during dark hours….Table of Minimum standards for underground lighting (CMR, 1957)
| PLACE | MINIMUM AVERAGE ILLUMINATION LEVEL (lux) |
|---|---|
| Pit bottom Main junctions Roadways Haulage engines, control gear and haulage drum | 15-30 12.5 4 15 |
Is mine safe to use?
The Say Mine app is safe as they come. The app was built on a secure environment and was developed by data security experts. Protecting users’ privacy and security is at the core of Mine’s values (or at least so they say so on their website…)
What are advantages and disadvantages of mining?
Top 10 Mining Pros & Cons – Summary List
| Mining Pros | Mining Cons |
|---|---|
| Higher tax income for governments | Habitat destruction |
| Mining is crucial for technological progress | Biodiversity loss |
| Mining is a mature technology | Endangerment of species |
| Processes around mining are quite efficient | Mining can lead to ecological imbalance |
Is surface mining safer than underground mining?
On a production basis, comparing fatalities per million tons, strip mines are over four times safer than underground mines; and on an exposure basis, comparing fatalities per million man hours, strip mines are approximately twice as safe. This disparity in numbers is due to the higher productivity of the strip mine.
https://www.youtube.com/watch?v=rscnt0DdeUY