GB50431-2020······1
1 总则······16
2 术语和符号······17
2.1 术语······17
2.2 符号······18
3 主要参数······30
3.1 输送量······30
3.2 带速······39
3.3 带宽······39
4 运行阻力······42
4.1 运行阻力······42
4.2 传动滚筒圆周力······61
5 输送带张力和驱动功率······64
5.1 输送带张力······64
5.2 输送带各特征点的张力计算······67
5.3 电动机功率······68
5.4 驱动功率分配······69
5.5 拉紧力······69
6 启动和停机······70
6.1 惯性力······70
6.2 启动加速度······71
6.3 停机减速度······72
7 下运带式输送机······74
7.1 一般规定······74
7.2 启动和制动······75
8 主要部件······77
8.1 输送带······77
8.2 滚筒······86
8.3 托辊组······90
8.4 机架······99
8.5 驱动装置······102
8.6 拉紧装置······103
8.7 制动和逆止装置······104
8.8 清扫器······105
9 安全保护装置······107
9.1 一般规定······107
9.2 紧急开关······107
9.3 输送带保护······107
9.4 料流检测装置······108
9.5 下运带式输送机和管状带式输送机保护······108
10 整机布置······110
10.1 一般规定······110
10.2 受料······111
10.3 卸料······112
10.4 过渡段······113
10.5 曲线段······121
10.6 输送带翻转装置······132
10.7 转载站和驱动站······133
10.8 栈桥和隧道······133
11 电气和控制······135
11.1 供电电源······135
11.2 配电······135
11.3 单机控制······135
11.4 集中控制······136
11.5 智能控制······137
11.6 电气保护和通信······137
12 优化设计和动态性能评价······138
13 附属设备······140
14 消防和环保······142
14.1 消防······142
14.2 粉尘防治······142
14.3 清扫······143
14.4 噪声和光电污染控制······143
15 工程施工······144
15.1 一般规定······144
15.2 施工······145
15.3 试运转······148
16 工程验收······151
16.1 工程划分······151
16.2 工程验收······151
附录A 普通带式输送机输送带承载物料的理论横截面积······153
附录B 托辊载荷计算······159
本标准用词说明······161
引用标准名录······162
附：条文说明······164
1 总则······170
2 术语和符号······171
2.1 术语······171
2.2 符号······171
3 主要参数······172
3.1 输送量······172
3.2 带速······174
3.3 带宽······175
4 运行阻力······176
4.1 运行阻力······176
4.2 传动滚筒圆周力······180
5 输送带张力和驱动功率······181
5.1 输送带张力······181
5.2 输送带各特征点的张力计算······181
5.3 电动机功率······182
5.4 驱动功率分配······182
5.5 拉紧力······183
6 启动和停机······184
6.1 惯性力······184
6.2 启动加速度······184
6.3 停机减速度······185
7 下运带式输送机······186
7.1 一般规定······186
7.2 启动和制动······186
8 主要部件······188
8.1 输送带······188
8.2 滚筒······191
8.3 托辊组······192
8.4 机架······195
8.5 驱动装置······196
8.6 拉紧装置······196
8.7 制动和逆止装置······197
8.8 清扫器······198
9 安全保护装置······199
9.1 一般规定······199
9.2 紧急开关······199
9.3 输送带保护······199
9.4 料流检测装置······200
9.5 下运带式输送机和管状带式输送机保护······200
10 整机布置······202
10.1 一般规定······202
10.2 受料······209
10.3 卸料······210
10.4 过渡段······211
10.5 曲线段······212
10.6 输送带翻转装置······215
10.8 栈桥和隧道······216
11 电气和控制······217
11.1 供电电源······217
11.2 配电······217
11.3 单机控制······218
11.4 集中控制······218
11.5 智能控制······219
11.6 电气保护和通信······219
12 优化设计和动态性能评价······220
13 附属设备······222
14 消防和环保······223
14.1 消防······223
14.2 粉尘防治······223
14.3 清扫······224
14.4 噪声和光电污染控制······224
15 工程施工······225
15.1 一般规定······225
15.2 施工······225
15.3 试运转······225
16 工程验收······227
16.1 工程划分······227
16.2 工程验收······227
附录B 托辊载荷计算······228
