Mine ventilation duct is widely used in various coal mines, iron ore, copper ore and rare metal mines. Explosions caused by dust ignition present a significant problem in a variety of industry sectors. When facilities fail to follow NFPA standard engineering controls that include both dust and static control, they drastically increase the likelihood of severe property damage, injury, and/or death within their operation. Flexible hoses used in highly volatile industrial environments have the potential to produce sparks, which may ignite flammable dust particles to cause fires or explosions. This potential makes it necessary for high-risk facilities to use anti static tarpaulin in their facilities and operations. Constructed from Anti static tarpaulin these ducts are durable, heavy-duty and flame retardant. Matching with the explosive proof ventilator, the explosive proof flexible ducts are widely used for ventilating in the inflammable and explosive spaces such as: petro-chemical industry, medicament, oil carrier and oil depot. In order to exhaust the chemical odour. Mine ventilation duct usually matching with the explosive proof ventilator, the explosive proof flexible ducts are widely used for ventilating in the inflammable and explosive spaces.
DuraTarps independently researches and develops high-quality air duct film formulas, and adjusts them in time according to seasons, uses and performance. Never add waste, recycled materials, low-quality oil, never rely on calcium powder to fill low cost, never rely on cutting corners to make ill-gotten gains; adhere to the difference between high, middle and low-end fabrics, different seasons, and performance Therefore, it can ensure the stability of product quality, excellent cost performance, long service life and environmental adaptability.
The unique surface carbon black treatment antistatic technology of DuraTarps to ensure that the surface resistance value is stable at two years after underground use Within 108Ω. Our company has successfully developed an anti-static surface formulation. The anti-static index is stable at about 108Ω. The air duct fabric has no volatile components, and no VOC emissions can be achieved during the production process.
Mine ventilation duct specifications:
|Ventilation duct material | DuraTarps DLT-5303|
|Base fabric:||1000D 9*9|
|Flame retardant:||FR DIN4102 B1, M2, CLASS 1|
|Suitable temperature:||-20° to +70°|
|Package:||Paper tube + Craft paper|
|Meter per roll:||30m-506m|
- Excellent anti-static performance with surface resistivity of 106 to 108 Ω and a half-life period of one second or less.
- Long lasting static protection.
- Takes advantage of such superb features of rigid PVC plates as chemical resistance, processability, and flammability.
- Static Electricity
- As the name implies, static electricity is electricity at rest. The electrical charge is the transference of electrons that occurs when there is sliding, rubbing, or separating of a material, which is a generator of electrostatic voltages. For example: plastics, fiber glass, rubber, textiles, ect. Under the right conditions, this induced charge can reach 30,000 to 40,000 volts.
When this happens to an insulating material, like plastic, the charge tends to remain in the localized area of contact. This electrostatic voltage may then discharge via an arc or spark when the plastic material comes in contact with a body at a sufficiently different potential, such as a person or microcircuit.
If Electrostatic Discharge (ESD) occurs to a person, the results may range anywhere from a mild to a painful shock. Extreme cases of ESD, or Arc Flash, can even result in loss of life. These types of sparks are especially dangerous in environments that may contain flammable liquids, solids or gasses, such as a hospital operating room or explosive device assembly.
Some micro-electronic parts can be destroyed or damaged by ESD as low as 20 volts. Since people are prime causes of ESD, they often cause damage to sensitive electronic parts, especially during manufacturing and assembly. The consequences of discharge through an electrical component sensitive to ESD can range from erroneous readings to permanent damage resulting in excessive equipment downtime and costly repair or total part replacement.
How is static resistance measured?
Static resistance is measured in Ohms (Ω) and can be measured using what are called Ohm meters (a common instrument in most workshops). Resistance measurements will fall somewhere between 0 (for a truly conductive material such as metal or water) and infinity (for truly insulative materials such as rubber and fabrics). Resistance measurements for plastic materials with some level of conductivity are usually measured in Mega-Ohms (MΩ). 1 Mega-Ohm = 1,000,000 (1 million) Ohms.
- Preventing the buildup of static electricity. Reducing static electric charges, as on textiles, waxes, polishes, etc., by retaining enough moisture to provide electrical conduction.