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                                                  如何选择适合自己的混合机

                                                     粉体混合操作相当复杂,特别是由于粉料的性质对混合效果形响很大.所以越是大型的混合机选型田难就越大。因此对混合机的选型,除裔掌捉上述的一般原理外,还要进一步掌握选型的一般方法。 
                                                        一般?#27492;擔?#36873;型的办扶有:类比法、小试法,中试法 
                                                  类比法 
                                                      用户一般根据自己的物料,?#25569;?#21516;行厂家选用的机型.可以较快地选定自己所需的混合机机型。该方法的优点是方法简便.选型过程中投入费用较少.由于有别人的经验作借鉴,因此选型的正确性?#27927;螅?#22833;误较少.缺点是目前市场竞争异常激烈,有时同行之问技术保密,很难了解到确切情况。 
                                                  小试法 
                                                      用户可报据自己的物料.参考生产厂家的产品说明书及其他资料.初步选定小试机型进行试?#22330;?#22312;小试中要测定混合机的什能、混合均匀度、最佳混合状态等。在小试中,可光选用几种定型混合机进行对比实验.然后按照下列原则,最终选定混合机:① 混合均匀度和混合所需时间;②综合比较设备费用、能耗费用、维修费用和操作费川;③ 安装条件,如有否场地?#25237;?#21147;的限制。根据试验分析结果.确定机型。如对选定产品还有不满愈的地方,?#19978;?#24191;方提出修正要求.使之更适合生产要求。 
                                                  中试法 
                                                        在大型没备选型中.有时仅仅依靠小?#36234;?#26524;还?#36824;唬?#26368;好还要进行中试,中试的目的是验证小?#36234;?#26524;,同时为选提供进一步的依据.中试时应注意以下儿点: 
                                                        1、中试设备规模越大,越接近要选用的大型设备,则试验结果能越可靠。 
                                                        2、由于粉体混合机的放大数据发表甚少.因此中试时更要与制造厂家紧密配合,一般由厂方提供中试(放大)的操作数据或结构改进。在中试过程巾,还应把注意力放在混合均匀度、功?#26102;?#21270;、混合时间以及混合讥的启动等问题上。只有中?#36234;?#26524;与小?#36234;?#26524;相一致后.进一步的设备选型才有可靠依据 
                                                        3、中试时,应尽可能采用给定过程物料,与小试物料相一致。 
                                                        该方法的优点是:选型比较准确,在今后生产中,产品的的产最、?#39318;?#37117;可以得到充分保证,混合时间、能耗、设备费用都可以控制在较佳的范围内。缺合是:设备选型时间较长.所花费的人力、物力?#27927;?/span>

                                                  快乐十分开奖记录

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                                                                                                  2019白菜网彩金 最全的11选五 广西十一选五开奖情况 p3开机号试机号及金胆 安徽快三开奖时间 老11选5开奖视频 江苏体彩七位数开奖结果 吉林十一选五开将结果 金7乐今日开奖结果 360广东十一选五走势图 3o选五开奖结果 老时时彩开奖 北京快乐8开奖视频实时直播 qq宠物里的游戏还可以玩吗 亚盘