Coal Mine Steel Cord conveyor Belt, Fire Resistant Steel Cord Belt, High Temperature Conveyor Belt Manufacturer
- Applications
Fire resistant steel cord conveyor belt is suitable for underground mines. It should meet requirements of electrical and fire safety properties.
- Physical Properties of Rubber Cover
|
Item
|
Index
|
|
Tensile Strength/Mpa ≥
|
15
|
|
Breaking Elongation/% ≥
|
350
|
|
Abrasion Loss/mm3 ≤
|
200
|
|
After aging test(70℃×168h)
|
Change rate of tensile strength/%
|
±25
|
|
Change rate of breaking elongation/%
|
±25
|
- Adhesion
- Adhesion between rubber cover and belt core: ≥12N/mm.
- Adhesion of steel core (N/mm)
|
Belt type
|
630
|
800
|
1000
|
1250
|
1600
|
2000
|
2500
|
2800
|
3150
|
3500
|
4000
|
4500
|
5000
|
5400
|
|
Before- aging, ≥
|
60
|
70
|
80
|
95
|
105
|
105
|
130
|
135
|
140
|
145
|
150
|
165
|
175
|
180
|
|
After- aging, ≥
|
55
|
65
|
75
|
90
|
95
|
95
|
120
|
125
|
130
|
140
|
145
|
160
|
170
|
175
|
- Specification
Specification of steel cord conveyor belt
|
Belt type
|
ST630
|
ST800
|
ST1000
|
ST1250
|
ST1600
|
ST2000
|
ST2500
|
ST2800
|
ST3150
|
ST3500
|
ST4000
|
ST4500
|
ST5000
|
ST5400
|
|
Min. tensile strength (N/mm)
|
630
|
800
|
1000
|
1250
|
1600
|
2000
|
2500
|
2800
|
3150
|
3500
|
4000
|
4500
|
5000
|
5400
|
|
Max. diameter of steel cord (mm)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Steel cord pitch (mm) (±)
|
|
|
|
|
|
|
1
|
15
|
1
|
1
|
1
|
1
|
1
|
|
|
Top cover thickness (mm)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Bottom cover thickness (mm)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Belt width
|
Number of steel cord
|
|
800
|
75
|
75
|
63
|
63
|
63
|
63
|
50
|
50
|
50
|
50
|
50
|
46
|
46
|
43
|
|
1000
|
95
|
95
|
79
|
79
|
79
|
79
|
64
|
64
|
64
|
64
|
64
|
59
|
59
|
55
|
|
1200
|
113
|
113
|
94
|
94
|
94
|
94
|
76
|
76
|
76
|
76
|
76
|
71
|
71
|
66
|
|
1400
|
133
|
133
|
111
|
111
|
111
|
111
|
89
|
89
|
89
|
89
|
89
|
84
|
84
|
78
|
|
1600
|
151
|
151
|
126
|
126
|
126
|
126
|
101
|
101
|
101
|
101
|
101
|
96
|
96
|
90
|
|
1800
|
171
|
171
|
143
|
143
|
143
|
143
|
114
|
114
|
114
|
114
|
114
|
109
|
109
|
102
|
|
2000
|
191
|
191
|
159
|
159
|
159
|
159
|
128
|
128
|
128
|
128
|
128
|
121
|
121
|
113
|
|
2200
|
211
|
211
|
176
|
176
|
176
|
176
|
141
|
141
|
141
|
141
|
141
|
134
|
134
|
125
|
- Safety property
|
Item
|
Fire resistant properties
|
|
Alcohol burner test
|
Average value of flame duration of 6 samples with covers, not more than 3s, any single value not more than 10s.
|
Average value of flame duration of 9 samples without covers, not more than 5s, any single value not more than 15s.
|
|
Anti-static test
|
Surface resistance ≤ 3×108Ω
|
|
Drum friction test
|
no flame reappear, ≤ 325℃
|
|
Tunnel propane burning test
|
a. Undamaged sample length ≥600mm, or
b. Undamaged sample length ≥50mm, ≤140℃ rising, damaged length≤1250mm
|
Rubber Belt, Fabric Conveyor Belt, Steel Cord Conveyor Belt, Solid Woven Conveyor Belt Manufacturer
