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  • 产品名称:粉体流动测试仪(转鼓法)

  • 产品型号:FT-7100
  • 产品厂商:瑞柯仪器
  • 产品价格:0
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简单介绍:
器粉体流动测试仪(转鼓法)概述: 转鼓法即将粉体颗粒填充转鼓中让其缓慢转动,测定固定转速下每旋转一圈颗粒发生坍塌的次数,次数越大,流动性越好;反之越小,流动性越差。此方法反映了颗粒流动的稳定性、临界转变及坍塌规模.和质量流率.满足欧洲药典要求.粉体流动测试仪(转鼓法)。
详情介绍:

粉体流动测试仪(转鼓法)

1.   概述: Outline

转(zhuan)(zhuan)(zhuan)鼓法(fa)即将粉体颗粒(li)填充(chong)转(zhuan)(zhuan)(zhuan)鼓中让其缓(huan)慢(man)转(zhuan)(zhuan)(zhuan)动(dong),测定(ding)固定(ding)转(zhuan)(zhuan)(zhuan)速下(xia)每旋(xuan)转(zhuan)(zhuan)(zhuan)一圈颗粒(li)发(fa)生坍塌的次数(shu),次数(shu)越大,流动(dong)性(xing)越好(hao);反之越小(xiao),流动(dong)性(xing)越差。此方法(fa)反映了(le)颗粒(li)流动(dong)的稳(wen)定(ding)性(xing)、临界转(zhuan)(zhuan)(zhuan)变(bian)及坍塌规模.和质量流率.满(man)足(zu)欧洲药典要求.

Drum method is filling  the powder in the granular drum and make it slow rotation, measue the number of times the particles collapse at the fixed speed, the greater the number, the better the liquidity;The smaller the reverse, the worse the liquidity.This method reflects the stability of particle flow, critical transformation and collapse scale, and mass flow rate. Meet the requirements of European pharmacopoeia.

粉(fen)体流动测试仪(转鼓法(fa))

转鼓中颗粒表面因流速不同从上到下可分为 3个区域:即稀疏流动区、致密流动区和蠕变区;剪切率的变化对颗粒流动特征和运动状态具有决定性影响;颗粒在转鼓中的运动有一个显著特点,即可以大致分为流动表层和静止底层两个区域,将颗粒物质从静止状态发展到流动、再由流动通过堵塞转变为静止的全过程有机地统一起来。通过调节转鼓的旋转速度,可获得颗粒的流动过程与流动状态.

 The particle surface of the drum is divided into three regions due to different flow velocity: the sparse flow area, the dense flow area and the creep region.The change in shear rate has a decisive effect on the Flow characteristics and motion state of the particles.Particle motion in the drum has a distinctive features, which can be roughly divided into flow surface and static bottom two area, The whole process of moving particles from rest to flowing and flowing through blockages to static processes is organic unify .By adjusting the rotation speed of the drum, the flow process and flow state of the grain can be obtained.

粉体(ti)流动测试仪(转(zhuan)鼓法)

根(gen)据(ju)转(zhuan)鼓(gu)中颗(ke)粒(li)流动层(ceng)厚度或自(zi)由(you)表面(mian)倾(qing)角(jiao),获得(de)流动层(ceng)的(de)剪切(qie)速(su)率(lv),进而计(ji)算(suan)得(de)到颗(ke)粒(li)物质的(de)流动性(xing). 不同转(zhuan)速(su)和(he)转(zhuan)鼓(gu)直(zhi)径下(xia)从中心到自(zi)由(you)表面(mian)的(de)致密流动区域内(nei)颗(ke)粒(li)的(de)剪切(qie)变(bian)形速(su)率(lv)都具有线性(xing)变(bian)化(hua)特征(zheng),平均剪切(qie)率(lv),反映颗(ke)粒(li)流动的(de)平均剪切(qie)变(bian)形能力,颗(ke)粒(li)尺(chi)寸、形状、摩擦因数及流动状态等因素的(de)影响。

According to particle flow layer thickness in drum or free surface inclination, obtain flow layer shear rate, and then calculate the particle nature of liquidity. Under different rotational speed and different drum diameter ,The shear deformation rate of particles in the dense flow area from the center to the free surface has linear variability,The average shear rate, reflect  the effect of average  flow shear and deformation capacity of the particle, particle size, shape, friction factor and the flow state etc factors.


瑞柯仪器粉体流动测试仪(转鼓法)二、适用范围:Scope of application

在(zai)粉末冶金(jin)、食品、制药(yao)、金(jin)属、化工、农业等生(sheng)产过程中,广泛涉及到颗(ke)粒(li)物(wu)流动,如筒仓(cang)卸料(liao)、传输、混合(he)、流化和(he)固/气分(fen)离等, 分(fen)析颗(ke)粒(li)物(wu)料(liao)的(de)流动特(te)性,对于防止(zhi)发生(sheng)粉体堵(du)塞、控制颗(ke)粒(li)成分(fen)的(de)均(jun)匀性和(he)一致(zhi)性都具有至关重要的(de)意义。

Widely used in powder metallurgy, food, pharmaceutical, metal, chemical industry, agriculture, etc. production process, Widely involved in particle flow, such as silo unloading, transport, mix, fluidization and solid/gas separation and so on, Analysis of the flow characteristics of the material particles, It is of vital important to prevent powder blocking and Control particle components’s evenness and uniformity.

粉体流动测试仪(转鼓法)三、技术参数:technical parameter

转鼓圆筒直径diameter of the drum cylinder:20cm

深度(长度)Depth(length):13.3cm

转鼓(gu)滚筒截面为透明

The cross section of drum roller is transparent.

转鼓(gu)滚(gun)筒的转动速率(lv)rotation rate of drum roller:0.8 r/min -120 r/min,

分辨率Resolution: 0.01 r/min.

转鼓内部填充粉体试样至容(rong)积50%.

The drum is filled with powder sample to volume 50%.

转速大致范围 3~9 r/min 时(shi)颗粒(li)能够保持(chi)(chi)稳定的流动(dong),且自由(you)表面(mian)保持(chi)(chi)平直.

When the rotation rate is about 3~9 r/min, particles can maintain steady flow,and the free surface remains flat.

采用(yong)CCD图像处(chu)理法,通过PC软件实时分析(xi)和数据曲(qu)线处(chu)理.

Using CCD image processing method, real time analysis and data processing by PC software.

使用环(huan)境(jing):实验室环(huan)境(jing)Environment: laboratory environment

电源(yuan)Power supply:220V, 50/60Hz

粉体流动测试仪(转鼓法)

FT-3400粉体流动行为分析仪(静态力学,剪切法(fa))

FT-7100粉体流动(dong)测试仪(动(dong)态力学,转鼓法(fa)或旋转圆筒(tong)法(fa))

FT-3900粉末屈(qu)服强度(du)分析仪(单轴压缩法)

FT-3500粉体压缩强度测试仪(可压性,压缩方程)

FT-2000智能颗粒和粉末特性分析仪系列(传统方法)

FT-301系列智能粉末电阻率测试系统(tong)

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