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目 錄
1水射流采煤綜述..................................................... 1
1.1 高壓水射流概述....................................................1
1.2 刀具采煤的弊端................................................... 2
1.3 DY---150采煤機(jī)設(shè)計(jì)參數(shù)及水射流的優(yōu)點(diǎn)..........................2
2水射流性能簡介....................................................4
2.1 非淹沒式水射流 .................................................．4
2.2 非淹沒射流的動(dòng)力特性.............................................5
2.3 射流參數(shù)與計(jì)算．..................................................8
3水射流與機(jī)械刀具聯(lián)合切割機(jī)理..................................9
3.1 聯(lián)合切割機(jī)理.....................................................9
3.2 水射流和機(jī)械刀具聯(lián)合兩方法.......................................9
3.3 水射流與刀具聯(lián)合破煤的特點(diǎn)．....................................10
3.4 校核參數(shù)條件...................................................11
4高壓水射流采煤機(jī)控制系統(tǒng).......................................13
4.1 閥控水路系統(tǒng).....................................................13
4.2 設(shè)計(jì)內(nèi)容.....................................................16
5高壓旋轉(zhuǎn)密封結(jié)構(gòu).................................................17
5.1 幾種密封裝置.....................................................17
5.2 本設(shè)計(jì)的高壓旋轉(zhuǎn)密封結(jié)構(gòu)．．.....................................21
6高壓水射流噴嘴結(jié)構(gòu)設(shè)計(jì)......................................... 23
6.1 噴嘴作用．．.....................................................23
6.2 連續(xù)高壓水射流噴嘴種類.........................................．23
6.3 結(jié)噴嘴的質(zhì)量要求.................................................23
6.4 噴嘴設(shè)計(jì)原理，小孔出流基本理論．．．．．．．．．．．．．．．．．．．．．23
6.5 噴嘴的基本結(jié)構(gòu)和材質(zhì)．．．．．．．．．．．...........．．．．．．．．．．．．．．．．．．26
6.6 噴嘴各參數(shù)對(duì)水射流性能的影響................．．．．．．．．．．．．．．．．．27
6.7 失效形式．.....................................................28
6.8 本設(shè)計(jì)中的噴嘴 ．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．29
7滾筒結(jié)構(gòu)參數(shù).....................................................30
8截齒和噴嘴布.....................................................33
8.1截齒的配置.....................................................33
8.2噴嘴在滾筒上的布置................................................36
結(jié)束語 .....................................................38
參考文獻(xiàn) .....................................................39