煤炭破碎设备的现状及适用范围

煤炭破碎设备的现状及适用范围摘要就破碎作业的作用与地位及各类破碎机的性能特点做了系统的阐述，提出各类破碎机的适用范围，指出新齿型分级破碎机是煤炭破碎作业的最佳选择。关键词过粉碎比表面积新齿型分级破碎机1煤炭破碎作业的作用与地位无论是原煤的初加工，还是在选煤过程中，破碎作业都是非常关键的一环，它直接影响着煤炭的销售和后续加工过程的投资，直接关系到煤炭企业的经济效益。随着市场经济的进一步发展和选煤设备技术的进步提高，对传统的破碎作业提出了新的要求，主要体现在以下几方面11市场的需要煤炭用户对产品粒度的要求非常严格，不同的用户有着不同的粒度要求，而且这种要求随着市场在不断变G2282，一G7098G17810不到要求就G1262G1363煤炭G9394销G6122G3252粒度G17241G19492而G6310G1196G17147G8466，直接影响煤炭企业的经济效益。同G7114，不同G7114G7411，不同粒度G16280格的产品G1227格不同，企业G1038了G14731G2474最G3835G19492度的G2045G9082，G1075G5529G20047G1393G19764有效的破碎作业。12煤炭深加工、洁净煤的需要煤炭在G8939选加工过程中，G1038了最G3835G19492度地G4466现G11724G11719同煤炭的G2345体G16311G12175，G3698加原G7021的比表面积，提高煤炭G17148G18339G708G19489G1314G9796分G451提高发G9921G18339G709，G19512G2447煤中的G11839G451G11979G12573有G4487G10301G17148，G1955G4579煤炭在G10135G9915G7114对G3835G8680G17908G6116的G8757G7591，G5529G20047对煤炭进G15904有效的粉碎作业。13洗选设备的要求不同的G8939选设备有着不同的G3800G10714粒度范围，G5529G20047G17902过破碎作业，以G9397G17287G8939选设备的要求。比G3926G18337G1183G17148G7071G8981G3132是分选效G10587G5468高的G8939选设备，而且适G5224性G5468G5390，G10995产G7143G1122G4466现G14270G2172G2282，G1363用非常G5203G8879。G1306G3926G7536G8939选产品粒度G17241G19492，G7509G7143G17908G6116G3593G2487现G16949，G1363G1866不能发G6393高效的作用，G1038了G16311G1927这G1022G19394G20076就G5529G20047G17902过破碎作业严格G1457G16789G1849G7021粒度。14降低破碎过程的过粉碎破碎过程中过粉碎，不G1306G17908G6116资G9316的G9022G17165，影响煤炭企业的经济效益，而且G1262G1363选后粉煤G8712分G3698加，煤G8889G8712系统G2399G2159G3698G3835，G18337选G12946煤G4466G19481产G10587G19489G1314。随着环G1457要求的提高以及粉煤G3800G10714G17165用的G3698加，G4570粉煤出G18339G19489G14279最G1314就G6116G1038破碎作业的关键G6164在。15节能降耗的需要G11458G2081，在选G11731G2390中，破碎G11964G11731作业的G10995产G17165用要G2356G1852G18108选G11731G17165用的G23G19G705以G990，而破碎G11964G11731设备的投资G17165要G2356选G11731G2390G5647投资的G25G19G705左右。选煤G2390破碎作业的G10995产G17165用和基建投资虽然G6164G2356比例比选G11731G2390G1314，G1306原煤准备系统的G10995产G17165用和基建投资对选煤G2390技术经济指标的影响G1075不容忽视。G6164以，提高破碎G10995产G10587，G19489G1314破碎功耗有G18337G3835意义。2破碎设备的主要形式及性能特点G11458G2081，破碎机的形式非常多，按G1866破碎G10301G7021的主要作用G2159G3835致可分G1038挤G2399型G451冲击型G451剪切型破碎机。21挤压型破碎机主要包括颚式破碎机G451G7071回破碎机G451圆锥破碎机G451光面G6122槽型齿面的辊式破碎机G12573。G1866工作原G10714G1038G10301G7021在破碎机械的固定齿板和可G2172齿板之间受到挤G2399G451劈裂和弯曲作用而被破碎。该种破碎机对破碎腔内的G10301G7021混杂破碎，G7509G7143形G6116过粉碎，且容G7143形G6116G3835片状产品，不能G1457G16789产品粒度，功G10587消耗G3835。主要用G1122坚硬G10301G7021的破碎，在金属G11731山和碎G11719G7021领域内G5224用G5203G8879。22冲击型破碎机主要包括反击式破碎机G451环锤式破碎机G12573。该种破碎机是以高速运G2172的锤头打击G10301G7021，每次打击后，G10301G7021加速，飞向冲击板，冲击G451反冲击，反复受到同样的作用，同G7114被打击G10301在破碎腔内受到相互破碎冲击，还有一G18108分在打击刃和冲击板作用下被剪切。这种破碎方法可控性G5468差，最后G1262导致产G10995G3835G18339粉煤，对G1122硬度不高且脆性G5468高的煤炭用这种方法破碎G7114情况更G1038糟糕，而且对G1849G7021粒度有G19492制,不适合煤炭的粗G451中碎作业。比较适合粉碎作业。23剪切型破碎机煤科G5647院唐山分院研制的新齿型分级破碎机G451英国MMD公司的双齿辊分级机G451德国的WMG型辊碎机G451以及德国的KRUPP公司G10995产的双齿辊破碎机都属G1122该种类型破碎机。主要是G17902过对G10301G7021的剪切G451拉伸G451弯曲G451刺破G451折断G451劈裂G12573作用G4466现破碎的G11458的。充分G2045用了岩G11719G451煤炭G451焦炭G12573的G5390度特性抗G2399G5390度抗剪G5390度抗拉G5390度G708表1G709。由G1122破碎原G10714先进，该种破碎机的节能G19489耗非常明显。表1煤炭强度特性表A1A0A3A2A4A5A7MPAA8A3A6A4A5A7MPAA8A3A9A4A5A7MPAA8A11A105A13501A151A1316A1550A1525A135A159A16A1210A13162A155A1351A155A132A155A3A210A1525A130A1550A15009A130A1506A18A14A17A19A20A23A24A20A23A25A21A25A22A26A27A28A29A30A33A34A31021A130A1545KWA32H/TA33A36A35A37A14A17A38A39A34A31046A131A155KWA32H/TA33A41A40A37A14A17A38094A131A1527KWA32H/TA33A43A42A37A14A17A38A44086A13124KWA32H/TA33A46A45A47A48A14A17A38A44035A130A1556KWA32H/TA50A19A49A51A52A53A54A55A52A56A57A39A58A47A59A55A60A14A17A38A39A61A62A63A64A44A66A65A67A68A14A17A23A55A60A39A69A70A71A72A50A58A47A59A55A60A14A17A38A33A14A17A47A73A74A75A76A18A47A48A77A33A78A48A79A80A81A82A83A74A84A39A85A86A33A87A88A89A90A91A92A93A94A95A96A97A98A99A100A101A102A95A96A103A104A105A106A99A107A108A109A103A110A105A106A111A94A95A96A112A113A105A106A94A114A115A116A117A118A105A106A119A97A120A94A121A122A123A124A99A125A126A127A128A129A130A131A132A133A134A135A105A119A97A136A137A99A138A139A140A141A97A120A142A141A99A143A144A145A146A99A147A148A149A150A116A151A152A153A154A155A90A91A92A93A116A156A111A157A158A159A127A160A161A162A99A100A95A96A103A104A163A104A105A106A99A164A165A94A166A167A168A169A170A171A90A91A92A93A172A173A103A104A142A174A99A152A153A175A176A90A91A177A178A94A179A180A168A169A99A136A181A182A183A94A92A93A184A185A105A106A142A141A116A90A91A92A93A186A187A188A153A119A189A190A191A192A193A119A147A194A195A196A119A142A141A197A158A198A199A200A116A105A106A164A201A202A203A204A205A131A206A207A208A209A210A211A212A213A214A164A215A99A216A217A218A219A119A220A90A221A210A222A158A223A116A224A178A189A106A225A223A116A157A158A226A227A228A229A99A88A89A172A173A92A93A94A95A96A206A207A177A178A99A230A100A101A89A92A93A172A173A94A95A96A103A104A105A106A99A107A108A109A103A110A105A106A111A94A95A96A112A113A105A106A94A114A115A99A231A232A117A118A225A223A94A178A189A106A233A116A100A89A190A234A119A235A234A236A160A237A95A96A99A178A189A106A233A126A238A1255A239A232A240A116A241A166A167A143A132A119A140A118A242A103A94A178A243A154A244A245A246A116A247A248A109A249A146A105A106A111A160A94A200A164A164A250A249A251A252A253A254A145A146A99A255A193A109A160A180A194A196A252A208A0A1A116A211A111A2A136A143A132A119A78A165A134A3A100A4A117A118A5A6A94A7A214A8A116A219A140A118A9A10A178A243A154A244A145A146A252A11A12A249A251A154A244A13A99A225A142A118A14A15A94A111A16A154A244A245A246A99A197A161A211A111A17A104A131A229A99A36A126A18A191A204A19A20A204A21A217A22A23A251A24A111A25A26A191A27A28A99A154A244A111A128A29A211A30A145A146A116A31A160A161A162A131A32A116A244A130A33A34A35A204A154A155A90A91A92A93A37A38A240A94A39A8A131A32A99A131A170A171A90A91A92A93A172A173A216A217A218A219A108A40A232A32A211A116A220A90A160A99A83A41A42A43A105A106A142A141A44A188A229A99A44A45A22A46A135A44A47A172A94A194A48A49A222A99A36A50A22A51A189A190A192A52A40A36A38A53A54A190A55A229A222A158A99A212A51A92A93A44A188A153A56A57A190A234A58A59A99A206A207A202A60A61A137A94A62A63A124A64A1163结语A65A77A66A67A68A69A70A71A72A73A254A74A75A76A79A80A81A82A84A85A68A86A87A249A88A89A90A91A92A93A94A95A96A97A98A99A100A101A102A103A104A105A106A107A98A109A110A111A112A113A114A115A109A110A116A117A118A119A113A120A132A121A122A123A132A124A86A125A126A103A127A129A140A130A118A119A98A131A133A134A135A123A205A136A100A137A113A89A138A118A119A98A109A110A111A112A103A114A139A113A141A142A143A144A145A146A118A119A106A107A98A109A110A116A114A115A109A110A190A117A118A119A113A147A148A118A119A98A120A132A121A122A103A149A150A151A109A110A116A120A