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Product
back>>Polyester Mine Grid
![](/upfile/201806/2018060157025705.jpg)
Description
Mine grid is a kind of high strength polyester mesh mainly used as fake ceiling of coal mine and other mines underground civil projects. It adopts high-modulus and high strength polyester fiber warp knitted and bundled together to form the substrate, then coated with fire retarding and static conducting material. It is a perfect substitute of traditional mine grid, such as: metal mesh, plastic mesh, steel-plastic composite mesh, packing belt mesh, etc.
Characteristics
*Soft, light, high junction strength.
*The tensile strength can range from 40KN to 1200KN.
*Acid and alkali resistance, cold and moisture resistance.
*Corrosion resistance, long life, fire retarding and static conduction.
Application
1. Fake ceiling support in stopping face.
2. Anchoring and shotcreting tunnel support.
3. Temporary and permanent support in tunnel.
4. Other mining tunnel and underground civil projects.
Benefits
1.Avoiding tunnel sliding, leakage of gangue and roof falling and improving mine safety and reducing mining accidents.
2.Reducing ventilation resistance and saving energy.
3.Recyclable and easy installing.
TechnicalParameter
No. | Specification | 100-100 | 200-200 | 400-400 | 600-400 | 600-600 | 800-800 | |
1 | Grid size( MD&CD), mm | 25.4x25.4, 50.8x50.8, 76.2x76.2 | ||||||
2 | Mesh size( MD&CD), mm | 20x20, 40x40, 50x50 | ||||||
3 | Tensile strength(MD), (KN/m≥) | 100 | 200 | 400 | 600 | 600 | 800 | |
Break elongation(MD), (%≤) | 25% | |||||||
5 | Tensile strength(CD), (KN/m≥) | 100 | 200 | 400 | 400 | 600 | 800 | |
6 | Break elongation(CD),( %≤) | 25% | ||||||
7 | Surface resistance,Ω | Upper | <1.0x 109 | |||||
Lower | <1.0x 109 | |||||||
8 |
Flammability (Igniting time by alcohol burner :8s)
| Average burning time (flame) | <3.00s | |||||
Maximum burning time( flame) | <10.00s | |||||||
Average burning time (no flame) | <10.00s | |||||||
Maximum burning time( no flame) | <30.00s | |||||||
9 |
Flammability (Igniting time By alcohol blast burner :8s)
| Average burning time (flame) | <6.00s | |||||
Maximum burning time( flame) | <12.00s | |||||||
Average burning time (no flame) | <10.00s | |||||||
Maximum burning time( no flame) | <30.00s | |||||||
Product quality standard MT141-2005 and Q/YG03-2017 |