Fire Resistant Steel Cord Conveyor Belt for Coal Mine
Coal Mine Steel Cord conveyor Belt, Fire Resistant Steel Cord Belt, High Temperature Conveyor Belt Manufacturer
Fire resistant steel cord conveyor belt is suitable for underground mines. It should meet requirements of electrical and fire safety properties.
|
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 |
|
|
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 of steel cord conveyor belt
|
Belt type |
ST630 |
ST800 |
ST1000 |
ST1250 |
ST1600 |
ST2000 |
ST2500 |
ST2800 |
ST3150 |
ST3500 |
ST4000 |
ST4500 |
ST5000 |
ST5400 |
|
630 |
800 |
1000 |
1250 |
1600 |
2000 |
2500 |
2800 |
3150 |
3500 |
4000 |
4500 |
5000 |
5400 |
|
|
Steel cord pitch(mm) (±1.5) |
15 |
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|
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 |
|
Item |
Fire resistant properties |
|
|
Alcohol burner test |
Averagevalue of flame duration of 6 samples with covers, not more than 3s, any single value not more than 10s. |
Averagevalue of flame duration of 9samples withoutcovers, not more than 5s, any single value not more than 15s. |
|
Anti-statictest |
Surface resistance≤ 3×108Ω |
|
|
Drum friction test |
no flame reappear, ≤325℃ |
|
|
Tunnel propane burning test |
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