Product Main

Specifications

Product Name:  
  Geogrid for mining - coal mine in double anti-network, care to help network, leave the top network
Products:  
 

        Mine with plastic to help protect network is independently developed by the company as a "double anti-" plastic net. The product is ease of construction, low cost, safe and beautiful. The main features of the static friction is not easy, good flame retardancy, anti-corrosion ability, but in the construction and transport, easy washing, have a strong vertical and horizontal bearing capacity of the other excellent features.

Features:
        The product is based on polypropylene as the main raw materials, through flame-retardant, antistatic technology treatment, biaxially oriented approach to the formation of the overall structure of the grid.
      1, static friction is not easy. In underground coal mine environment, the average surface resistance of plastic mesh are in the 1 × 109Ω or less.
      2, flame-retardant performance is good. Melted in the fire environment is not only burning, burning from the fire even though a maximum of 10s Jimie.
      3, easy washing. The density of the plastic mesh around 0.92 less than the density of water in the coal washing process, the broken mesh floating on the water, easy to be flushed out.
       4, anti-corrosion ability, anti-aging.
       5, to facilitate the construction and transportation. Relatively soft plastic mesh, should not be scratched in the construction workers, but also easy to curl bundling, tailoring, and the advantages of light weight, and thus facilitate the underground transport, carry, and construction.
        6, vertical and horizontal directions have a strong bearing capacity. After extrusion and drawing process after the plastic mesh, re-alignment of its molecular structure, not stretching the tensile strength is 2-3 times before. The formation of two-way stretch tendons and ribs perpendicular to each other, this structure makes the pressure imposed on the mesh nodes through an effective transfer to the surrounding rib muscle, thus greatly improving the overall bearing capacity of the mesh. When the external force applied certain a tendon (or rib) on, they will be evenly distributed force to other bars (or ribs) on the lower cut-off single centralized bearing capacity, and thus not easily broken rib caused by gluten. Second, due to the plastic net is not knit two-way stretch, so a small amount of creep mesh and uniform mesh size, can effectively prevent the broken coal in the fall to protect the safety of mine workers and mine workers under the safety and the safety of tramcar operation.
 

Executive Standard:Q / ZTJ · TG02-2006"coal mine to help with the plastic protection network"
Mine with plastic mesh to help protect the quality of unit area, size and deviations
 
Project
HB PP25-25MS
HB PP30-30MS
Mass per unit areag / M2
300 ± 50
400 ± 50
Roll Length:M
5∽50 (+0.5)
Width:M
4.0/3.5/3.0/2.5/2.0/1.5/1.0
Width of the error:M
0 +0.20
Mesh side length:mm
40 (± 5) × 40 (± 5)
 
Mine with plastic mesh to help protect the physical and mechanical properties
 
No.
Project
Units
HB PP25-25MS
HB PP30-30MS
1
Longitudinal tensile force per meter
KN / M
≥ 25
≥ 30
2
Horizontal tensile force per meter
KN / M
≥ 25
≥ 30
3
Yield longitudinal elongation
%
<25
4
Transverse Elongation Yield
%
<25
 
Mine flame-retardant plastic anti-static properties help network protection
 
No.
Project
Units
HB PP25-25MS,HB PP30-30MS
1
Alcohol torch flaming time average
S
≤ 3
2
Alcohol torch flaming maximum time
S
≤ 10
3
Alcohol burner with combustion time average
S
≤ 10
4
Alcohol burner with combustion time of maximum
S
≤ 30
5
Alcohol lamp flaming time average
S
≤ 6
6
Flaming combustion time alcohol lamp maximum
S
≤ 12
7
Alcohol burner with combustion time average
S
≤ 10
8
Alcohol lamp maximum flameless combustion time
S
≤ 30
9
The average surface resistance
Ω
≤ 1.0 × 109