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巩义粉末输送泵概述
创新低压气力输送设备粉末输送泵系列产品,在引进国外先进技术的基础上,针对国内行业不同类型气力输送设备存在的各种问题开发出的新型低压气力输送泵设备。
该粉末输送泵广泛应用于火电厂、热电厂气力除灰系统,水利水电施工工地和城市商品混凝土搅拌楼、搅拌站系统中的粉状物料输送,水泥均化及倒库、各种粉状物料的输送,以及冶金、化工、建材、码头等行业的粉状物料输送、转运工艺中。创新系列低压气力输送设备粉末输送泵已成功应用于众多的粉体工程项目,是粉状物料*理想的气力输送设备之一。
巩义粉末输送泵工作原理和结构特征
低压气力输送设备粉末输送泵是利用气力压差原理与喷射流技术、流态化技术相结合,充分吸收现代气力输送的理论,经过多年运行实践总结,针对粉体气力输送工艺系统中,大量要求连续输送的方式而开发的专用设备。该设备与其它气力输送设备如仓式泵相比,具有如下特点:
1.结构简单,运行可靠
低压气力输送设备粉末输送泵将物料由常压进入粉末输送泵中,利用独特设计的喷射装置,将物料送入到输送管内,利用气力压差使物料沿管道送到受料目的地。整体结构简单,运行很 可靠。
2.磨损小,使用寿命长
由于采用连续输送,低压大风量,管内流速较低且恒定,因而磨损小,整个系统设备使用寿命长。
3.布置方便灵活
粉末输送泵可以根据系统具体情况,布置成单泵单管或多泵共管、多泵共气源等型式。管道可以水平、垂直、斜上布置,满足工程千变万化的布置要求。
4.全密封、输送,满足自身环保及工程对所输物料的品质要求
由于该粉末输送泵采用低正压、全密封输送,外界物质不能进入管内,因此不会引起所需物料性质的任何改变。
5.输送稳定
由于采用连续输送利用低压力、大风量,不存在堵管现象。
6.操作简单
由于该设备运转部件仅有限,配套部件只有罗茨风机,则本体控制只需“启动”和“停机”操作,不需要人工值守,只需巡视。由于连续输送泵工艺系统简单,所配置的控制系统逻辑关系也随之简单、操作维然简单可靠。
7.对气源的品质要求不高
由于采用了连续输送的形式,加之输送动力气源一般采用罗茨风机,因此动力气源一般不需设立净化系统,只对气量和压力有一定的要求,可使用独立气源或工程中常用的空压站气源(集中气源)。
8.系统可靠性高
低压气力输送设备粉末输送泵组成的低压气力连续输送系统,具有其它任何气力输送设备组成的输送系统无法达到的可靠性。这是由于:
低压连续输送系统一般采用罗茨风机(也可视情况采用高压离心风机或空压机),罗茨风机的高可靠性决定了系统的可靠性。
设备本体简单,无常规气力输送工艺中阀门的频繁动作,设备故障率大大降低。
由低压气力输送设备粉末输送泵组成气力输送系统,一般设备数量和种类都较少,使得整个系统简洁可靠。
连续输送压力平稳,无任何冲击荷载。
9.经济合理,造价低,系统运行费低。
由低压气力输送设备粉末输送泵组成的低压连续气力输送系统,由于具有上述特点,因而同时具有造价低、运行指标优越的特点。
所以,本系统的优越性:不仅在工程上马时体现其投资省,更在于以后的运行使用过程中将不断体现出较低的运行维护费用!
巩义粉末输送泵选型原则及适用条件
1.选型原则选用低压气力输送设备粉末输送泵为核心设备组成气力输送系统,首先用户应提供:系统要求输送量,输送距离,或物料的理化参数、*温度和正常工作温度;若是锅炉除尘器下,则应提供除尘器灰斗布置及灰量分配等基本参数。然后由我厂技术人员先确定输送基本方案,如所需气量、如何分组、连续泵型号、进气和输送管道配置、库顶除尘器配置,*终由用户审查确定。
2.适用条件
低压气力输送设备粉末输送泵,由于采用低压输送,因此使用范围受到一定限制,只能在下列条件下才能正常*使用,并达到应有的效果。
输送距离≤500m(当量距离)。
物料比重≤2.0t/m3(粉料)。
*串泵不超过4台(即4台共一根输灰管)。
物料*瞬时温度≤250℃。
巩义粉末输送泵基本技术参数
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