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Granulation by agglomeration of ceramic compositions ground in dry phase

A composite, granulation technology, used in grain processing, granulation in stationary tanks/troughs, other household appliances, etc., can solve problems such as different performance, and achieve the effect of eliminating high energy consumption

Active Publication Date: 2013-08-28
安东尼奥·阿尔诺·维拉诺瓦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the properties of the prepared material are completely different from the composites used in the fine ceramic industry

Method used

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  • Granulation by agglomeration of ceramic compositions ground in dry phase
  • Granulation by agglomeration of ceramic compositions ground in dry phase
  • Granulation by agglomeration of ceramic compositions ground in dry phase

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Embodiment Construction

[0099] The preferred embodiment is based on successive steps according to figure 1 The illustrated execution, wherein the step of direct compression of the particulate ceramic composition additionally includes:

[0100] Gather raw materials

[0101] mixed material => composite

[0102] dry phase grinding

[0103] Granulation

[0104] filter

[0105] storage

[0106] compression

[0107] Observation: For the preferred embodiment, the components are mixed prior to granulation. A mineral with 62% illite clay was mixed with another mineral with a silica sand content of 30% and another mineral with potash content. The components are mixed prior to milling. The composition of the ceramic mixture before the end of grinding has a particle size of less than 120 microns. Table 1 below shows the chemical analysis of the resulting compositions.

[0108] Elements / Pelletizing Components

[0109] SiO 2 / 50.29

[0110] Al 2 O 3 / 25.37

[0111] Fe 2 O 3 / 2.51

[0112] Na 2...

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Abstract

The invention relates to the granulation by agglomeration of ceramic compositions ground in dry phase. The invention offers an alternative to the method of wet-phase grinding and drying by atomisation. The method consists of dry-phase grinding and preparation of argillaceous ceramic compositions with no binders, additives or deflocculants using argillaceous materials (approx. 60%) in a mixture with inorganic materials, grain sizes of less than 120 micrometres, in a horizontal rotary cylindrical appliance with deflecting paddles; the intake of said minerals, powdery materials and water taking place at one end of said appliance; and the rotation of said appliance causing the formation of granules that are moved by said deflecting paddles. The output of the granulated material is located at the opposite end of said appliance. The invention offers the following advantages: energy savings of 80%; savings in water consumption during granulation of 75% to 80% plus an extra 10% to 20% of savings in the pressure for pressing the granules. The time required to change from one ceramic composition to another is one hour, compared with several days using the current atomisation method. The granulation method constitutes novel environmental technology with zero pollution of the atmosphere and the water table, and with much lower water consumption.

Description

technical field [0001] The present invention relates to the manufacture of fine ceramics, such as coverings, pottery, porcelain, sanitary ceramics and sanitary ware, using composites of raw materials consisting of clays and other minerals. The present invention particularly relates to granulation by agglomeration of compositions forming ceramic raw materials obtained by dry phase milling. [0002] The present invention provides a method of dry-phase milling of mixed granulated materials to replace the currently used methods of wet-phase milling and subsequent drying by atomization, wherein the dry-phase method prevents the technical drawbacks caused by the wet phase. Background technique [0003] Agglomeration is a common term that defines the increase in grain size due to mechanical force, ie it covers the methods of agglomerating and bonding highly dispersed particles into larger masses. In fact, the term agglomeration is technically the opposite of disintegration or disi...

Claims

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Application Information

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IPC IPC(8): B01J2/10C04B33/00
CPCB01J2/10C04B33/04C04B33/131C04B35/62695C04B2235/3201C04B2235/3206C04B2235/3208C04B2235/3215C04B2235/3232C04B2235/3244C04B2235/3272C04B2235/3418C04B2235/3472C04B2235/42C04B2235/5436C04B2235/5445C04B2235/72C04B2235/725C04B2235/726C04B2235/727B02C17/18
Inventor 安东尼奥·阿尔诺·维拉诺瓦
Owner 安东尼奥·阿尔诺·维拉诺瓦
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