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联系人:何兴菊
联系电话:0574-27976112; 27975197 ;27868496 ;27976124
传真号码:0574-87460769
移动电话:18157427375
公司地址:宁波市江北区洪塘C区开元路225弄58号
Email:18157427375@163.com
公司网址:http://www.Lxtester.cn
QQ:1273574117


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产品详情
  • 产品名称:瑞柯仪器粉体流动测试仪(转鼓法)

  • 产品型号:FT-7100
  • 产品厂商:瑞柯仪器
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简单介绍:
FT-7100粉体流动测试仪(转鼓法) FT-710 Powder flow tester (Drum method) 9. 概述: Outline 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.
详情介绍:

FT-7100粉体流动测试仪(转鼓法)

FT-710 Powder flow tester (Drum method)

1.   概述: Outline

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.

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.

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.

根据转鼓中颗粒流动层厚度或自由表面倾角,获得流动层的剪切速率,进而计算得到颗粒物质的流动性. 不同转速和转鼓直径下从中心到自由表面的致密流动区域内颗粒的剪切变形速率都具有线性变化特征,平均剪切率,反映颗粒流动的平均剪切变形能力,颗粒尺寸、形状、摩擦因数及流动状态等因素的影响。

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.

二、适用范围:Scope of application

在粉末冶金、食品、制药、金属、化工、农业等生产过程中,广泛涉及到颗粒物流动,如筒仓卸料、传输、混合、流化和固/气分离等, 分析颗粒物料的流动特性,对于防止发生粉体堵塞、控制颗粒成分的均匀性和一致性都具有至关重要的意义。

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.

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

转鼓滚筒截面为透明

The cross section of drum roller is transparent.

转鼓滚筒的转动速率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积50%.

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

转速大致范围 3~9 r/min 时颗粒能够保持稳定的流动,且自由表面保持平直.

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

采用CCD图像处理法,通过PC软件实时分析和数据曲线处理.

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

使用环境:实验室环境Environment: laboratory environment

电源Power supply:220V, 50/60Hz

配套粉体综合分析解决方案:

FT-3400粉体流动行为分析仪(静态力学,剪切法)

FT-7100粉体流动测试仪(动态力学,转鼓法或旋转圆筒法)

FT-3900粉末屈服强度分析仪(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

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