ES2131031B1 - Dispositivo y procedimiento para medir la cohesion de medios granulares finos. - Google Patents

Dispositivo y procedimiento para medir la cohesion de medios granulares finos.

Info

Publication number
ES2131031B1
ES2131031B1 ES009702518A ES9702518A ES2131031B1 ES 2131031 B1 ES2131031 B1 ES 2131031B1 ES 009702518 A ES009702518 A ES 009702518A ES 9702518 A ES9702518 A ES 9702518A ES 2131031 B1 ES2131031 B1 ES 2131031B1
Authority
ES
Spain
Prior art keywords
measure
procedure
granular
cohesion
fine granular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
ES009702518A
Other languages
English (en)
Other versions
ES2131031A1 (es
Inventor
Mata Antonio Castellanos
Reyes Antonio Ramos
Millan Jose Manuel Valverde
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universidad de Sevilla
Original Assignee
Universidad de Sevilla
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universidad de Sevilla filed Critical Universidad de Sevilla
Priority to ES009702518A priority Critical patent/ES2131031B1/es
Priority to PCT/ES1998/000325 priority patent/WO1999027345A1/es
Publication of ES2131031A1 publication Critical patent/ES2131031A1/es
Application granted granted Critical
Publication of ES2131031B1 publication Critical patent/ES2131031B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0091—Powders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006—Dispersed solids
    • G01N2001/1012—Suspensions
    • G01N2001/1018—Gas suspensions; Fluidised beds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

Dispositivo y procedimiento para medir la cohesión de medios granulares finos. El objeto de la presente invención es un dispositivo automatizado para la medida de la cohesión de medios granulares finos (polvos). El aparato se basa en un procedimiento que usa de forma novedosa el asiento fluido, donde el medio granular primero se inicializa a un estado reproducible; el medio granular inicializado se consolida o desconsolida por medio de un flujo controlado de gas; el asiento de polvo consolidado/desconsolidado se somete entonces a un flujo de gas, dirigido de tal forma que el material granular se halle bajo tensión; la sobrepresión que causa la ruptura del asiento de polvo proporciona entonces una medida del esfuerzo tensil del material granular, que a su vez es una función de la consolidación y de la fracción de vacío. La determinación de estas tres propiedades interdependientes constituye una medida de la fluidez del material. La técnica inventada es de gran interés para la industria xerográfica como método de diagnóstico basado en las propiedades físicas fundamentales.
ES009702518A 1997-11-26 1997-11-26 Dispositivo y procedimiento para medir la cohesion de medios granulares finos. Expired - Fee Related ES2131031B1 (es)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES009702518A ES2131031B1 (es) 1997-11-26 1997-11-26 Dispositivo y procedimiento para medir la cohesion de medios granulares finos.
PCT/ES1998/000325 WO1999027345A1 (es) 1997-11-26 1998-11-26 Dispositivo y procedimiento para medir la cohesion de medios granulares finos

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES009702518A ES2131031B1 (es) 1997-11-26 1997-11-26 Dispositivo y procedimiento para medir la cohesion de medios granulares finos.

Publications (2)

Publication Number Publication Date
ES2131031A1 ES2131031A1 (es) 1999-07-01
ES2131031B1 true ES2131031B1 (es) 2000-03-01

Family

ID=8301386

Family Applications (1)

Application Number Title Priority Date Filing Date
ES009702518A Expired - Fee Related ES2131031B1 (es) 1997-11-26 1997-11-26 Dispositivo y procedimiento para medir la cohesion de medios granulares finos.

Country Status (2)

Country Link
ES (1) ES2131031B1 (es)
WO (1) WO1999027345A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2695451A1 (es) * 2017-06-29 2019-01-04 Tecn Mecanicas Ilerdenses S L Dispositivo para ensayo de colapso de una columna de material pulverulento o granular

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002095364A1 (es) * 2001-05-22 2002-11-28 Ingenieria Energetica Y De Contaminacion, S.A. Sistema automatico para la captacion, pesada y evacuacion de particulas solidas
WO2007042585A2 (es) * 2005-10-11 2007-04-19 Universidad De Sevilla Procedimiento y dispositivo para medir el ángulo de fricción y la cohesión de medios granulares
CN102706773A (zh) * 2011-03-28 2012-10-03 厦门钨业股份有限公司 挤压成型过程中粉末宏观流动表征方法及所用设备
CN108776081B (zh) * 2018-07-05 2021-02-09 中国石油大学(华东) 一种溶气原油流动特性实验环道装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3701399A1 (de) * 1986-02-24 1987-08-27 Freiberg Brennstoffinst Verfahren und vorrichtung zur bestimmung rheologischer kennwerte von feinen schuettguetern
JP2889640B2 (ja) * 1990-03-20 1999-05-10 ホソカワミクロン株式会社 粉粒体の付着力測定方法、並びに、付着力測定装置
NL9302093A (nl) * 1993-12-02 1995-07-03 Univ Groningen Fluidisatie van een bed van een cohesief poeder.
US5847294A (en) * 1996-04-09 1998-12-08 Amherst Process Instruments, Inc. Apparatus for determining powder flowability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2695451A1 (es) * 2017-06-29 2019-01-04 Tecn Mecanicas Ilerdenses S L Dispositivo para ensayo de colapso de una columna de material pulverulento o granular

Also Published As

Publication number Publication date
ES2131031A1 (es) 1999-07-01
WO1999027345A1 (es) 1999-06-03

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