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Granulación por aglomeración de composiciones cerámicas molturadas en fase seca
Se propone una alternativa al proceso de molturación en fase líquida y secado por atomización. El proceso consta de una molturación en fase seca y preparación de composiciones cerámicas arcillosas sin aglutinantes, aditivos, o defloculantes a partir de minerales arcillosos (aprox. 60%) en mezcla con materiales inorgánicos, tamaños de grano inferior a 120 micrómetros, en un aparato cilíndrico rotatorio horizontal con paletas deflectoras, la entrada de dichos minerales, materiales pulverulentos y agua se realiza en un extremo de dicho aparato; y por la rotación de dicho aparato se forman gránulos que se trasladan por dichas paletas deflectoras. La salida del material granulado se encuentra en el extremo opuesto de dicho aparato.
The invention relates to the granulation by agglomeration of ceramic compositions ground in dry phase. The invention proposes an alternative to the method of wet-phase grinding and drying by atomization. The method consists of dry-phase grinding and preparing argillaceous ceramic compositions without binders, additives, or deflocculants from argillaceous minerals (about 60%) mixed with inorganic materials, grain sizes of less than 120 micrometers, in a horizontal rotary cylindrical device with deflecting paddles, the intake of said minerals, powdery materials and water takes place at one end of said device; and granules that are moved by said deflecting paddles are formed due to the rotation of said device. The outlet of the granulated material is at the opposite end of said device. The invention offers the following advantages: energy savings of 80%; savings in water consumption during granulation of 75-80% and 10-20% of additional savings in the pressure for pressing the granules. The time necessary to change from one ceramic composition to another is one hour, compared with several days using the current method of atomization. The method of granulation constitutes a novel environmental technology with zero air and water table pollution, and with much lower water consumption.
Granulación por aglomeración de composiciones cerámicas molturadas en fase seca
Se propone una alternativa al proceso de molturación en fase líquida y secado por atomización. El proceso consta de una molturación en fase seca y preparación de composiciones cerámicas arcillosas sin aglutinantes, aditivos, o defloculantes a partir de minerales arcillosos (aprox. 60%) en mezcla con materiales inorgánicos, tamaños de grano inferior a 120 micrómetros, en un aparato cilíndrico rotatorio horizontal con paletas deflectoras, la entrada de dichos minerales, materiales pulverulentos y agua se realiza en un extremo de dicho aparato; y por la rotación de dicho aparato se forman gránulos que se trasladan por dichas paletas deflectoras. La salida del material granulado se encuentra en el extremo opuesto de dicho aparato.
The invention relates to the granulation by agglomeration of ceramic compositions ground in dry phase. The invention proposes an alternative to the method of wet-phase grinding and drying by atomization. The method consists of dry-phase grinding and preparing argillaceous ceramic compositions without binders, additives, or deflocculants from argillaceous minerals (about 60%) mixed with inorganic materials, grain sizes of less than 120 micrometers, in a horizontal rotary cylindrical device with deflecting paddles, the intake of said minerals, powdery materials and water takes place at one end of said device; and granules that are moved by said deflecting paddles are formed due to the rotation of said device. The outlet of the granulated material is at the opposite end of said device. The invention offers the following advantages: energy savings of 80%; savings in water consumption during granulation of 75-80% and 10-20% of additional savings in the pressure for pressing the granules. The time necessary to change from one ceramic composition to another is one hour, compared with several days using the current method of atomization. The method of granulation constitutes a novel environmental technology with zero air and water table pollution, and with much lower water consumption.
Granulación por aglomeración de composiciones cerámicas molturadas en fase seca
ARNAU VILLANOVA ANTONIO (author)
2021-10-28
Patent
Electronic Resource
Spanish
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