VDI 2762 Blatt 3-2017

Mechanical solid-liquid separation by cake filtration - Mechanical deliquoring of incompressible filter cakes by undersaturation using a gas pressure difference


VDI 2762 Blatt 3-2017 发布历史

The standard provides a basis for quantitative statements about the mechanical deliquorability of incompressible filter cakes by means of gas differential pressure. It continues VDI 2762 Part 2, where the formation of such filter cakes out of a suspension is described. Corresponding to the typical technical applications, the gas pressure difference is limited upwards to approx. 0,6 MPa. The filter cake is formed out of a homogeneously mixed suspension on the surface of a porous filter media (cf. VDI 2762 Part 2) and is fully saturated with liquid at the beginning of the deliquoring process. The deliquoring of the filter cake takes place exclusively by displacement. The gas displaces liquid out of the pore, if the magnitude of the gas pressure difference applied to the cake exceeds the effective capillary pressure inside the pore. Decisive for the deliquoring is the magnitude of the pressure difference applied to the filter cake, which can be generated against the ambient pressure either by an underpressure behind the filter media or an overpressure above the cake. This is the reason why in the experimental part of this standard the range of vacuum filtration is covered by appropriate experiments in a pressure filter cell.

VDI 2762 Blatt 3-2017由德国机械工程师协会 DE-VDI 发布于 2017-03。

VDI 2762 Blatt 3-2017在国际标准分类中归属于: 71.040.40 化学分析。

VDI 2762 Blatt 3-2017 发布之时,引用了标准

VDI 2762 Blatt 3-2017的历代版本如下:

  • 2015年08月01日 VDI 2762 BLATT 3-2015 Mechanical solid-liquid separation by cake filtration - Mechanical deliquoring of incompressible filter cakes by undersaturation using a gas pressure difference
  • 2017年03月 VDI 2762 Blatt 3-2017

 

 

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标准号
VDI 2762 Blatt 3-2017
发布日期
2017年03月
实施日期
废止日期
国际标准分类号
71.040.40
发布单位
DE-VDI
引用标准
DIN 1343-1990 VDI 1000-2017 VDI 2762 Blatt 1-2006 VDI 2762 Blatt 2-2010
被代替标准
VDI 2762 Blatt 3-2015
适用范围
The standard provides a basis for quantitative statements about the mechanical deliquorability of incompressible filter cakes by means of gas differential pressure. It continues VDI 2762 Part 2, where the formation of such filter cakes out of a suspension is described. Corresponding to the typical technical applications, the gas pressure difference is limited upwards to approx. 0,6 MPa. The filter cake is formed out of a homogeneously mixed suspension on the surface of a porous filter media (cf. VDI 2762 Part 2) and is fully saturated with liquid at the beginning of the deliquoring process. The deliquoring of the filter cake takes place exclusively by displacement. The gas displaces liquid out of the pore, if the magnitude of the gas pressure difference applied to the cake exceeds the effective capillary pressure inside the pore. Decisive for the deliquoring is the magnitude of the pressure difference applied to the filter cake, which can be generated against the ambient pressure either by an underpressure behind the filter media or an overpressure above the cake. This is the reason why in the experimental part of this standard the range of vacuum filtration is covered by appropriate experiments in a pressure filter cell.




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