Ceramic color sand and preparation method thereof

A technology for colored sand and ceramics, applied in the field of solid waste utilization, can solve the problems of destroying the ecological environment, wasting resources, irregular colored sand, etc., achieving the effect of not destroying the ecological environment, facilitating industrial production, and reducing mining and fragmentation.

Active Publication Date: 2017-04-26
阳江清大环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are mainly three methods for the preparation of artificial colored sand, which are organic dye dyeing method, binder curing method and high-temperature sintering method. These three methods are to coat or cure organic pigments or inorganic colorants on the base material On the surface, the commonly used basic materials are quartz, mineral particles, basalt sand particles or waste slag particles, etc. These basic materials are generally obtained by crushing mineral slag. It is non-spherical, used as decorative surface aggregate, and the decorative effect is not good; in addition, the color material is coated on the outer surface of the original base material, but this cannot really be integrated, and it is easy to fall off after long-term use
[0005] In the Chinese patent "A Colored Sand and Its Preparation Method" with the publication number CN102464460A, the basic materials of the colored sand are quartz sand, calcite, glass, etc. After primary crushing, ball milling is performed, the process is complicated, and mineral particles such as quartz are required at the same time. , destroy the ecological environment, waste resources, and cost more
[0006] In the Chinese patent "Colored Sand and Its Preparation Method" with the publication number CN1300031C, the colored sand is composed of a base material and a wrapped color layer, wherein the base material is quartz, mineral particles or waste slag particles, and these inorganic minerals or slag are processed by a jaw crusher. After crushing, it is crushed by a cone crusher to form non-spherical particles such as triangular cones and square cones, which makes the final colored sand irregular and affects the decorative effect
[0007] In the Chinese patent "A Kind of Sintered Colored Sand" whose publication number is CN104761286A, the colored sand is made by wrapping the colored ceramic coating on the outer surface of basalt sand grains, and then sintering at 500-600°C to obtain sintered colored sand, but the aggregate basalt sand grains and the The composition of the colored ceramic coating varies greatly, and it is easy to fall off after long-term use after sintering and coating, which affects the service life of the colored sand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Weigh 100 parts of fly ash (200~300 mesh), 80 parts of calcined kaolin, 10 parts of bentonite, 15 parts of silica fume, 5 parts of chrome-tin red material and 2 parts of sodium lignosulfonate, and put them in the mixer Mix well and set aside;

[0041] (2) Pour the mixture obtained in step (1) into a ceramic sand granulator, weigh 35 parts of water, and granulate while spraying water at a water spray rate of 18g / min;

[0042] (3) Put the prepared granules into a drying oven at 70°C to dry;

[0043] (4) After the dried grains are sieved through 20 mesh and 40 mesh, they are subjected to a certain firing system (heating at 20°C / min to 600°C, then at 2min / °C to 700°C, and finally at 10°C / min to 1250°C, and keep it warm for 20 minutes) and sinter to obtain 20-40 mesh colored sand.

Embodiment 2

[0045] (1) Weigh 100 parts of slag (200~300 mesh), 10 parts of calcined kaolin, 5 parts of white clay, 16 parts of silica fume, 7 parts of vanadium zirconium yellow material and 2 parts of polycarboxylate water reducer, and put them in the mixer Mix well and set aside;

[0046] (2) Pour the mixture obtained in step (1) into a ceramic sand granulator, weigh 25 parts of water, and granulate while spraying water at a water spray rate of 10g / min;

[0047] (3) Put the prepared granules into a drying oven at 90°C to dry;

[0048] (4) After the dried granules are sieved through 40 mesh and 70 mesh, they are subjected to a certain firing system (heating at 30°C / min to 600°C, then at 3min / °C to 700°C, and finally at 20°C / min to 1280°C, and keep it warm for 25min) and sinter to obtain 40-70 mesh colored sand.

Embodiment 3

[0050] (1) Weigh 100 parts of coal gangue (200~300 mesh), 60 parts of calcined kaolin, 20 parts of ball clay, 25 parts of silica fume, 10 parts of cobalt blue material and 1 part of naphthalene-based superplasticizer, and put them in the mixer Mix well and set aside;

[0051] (2) Pour the mixture obtained in step (1) into a ceramic sand granulator, and weigh 33 parts of water to granulate while spraying water at a water spray rate of 20g / min;

[0052] (3) Put the prepared granules into a drying oven at 120°C to dry;

[0053] (4) After the dried grains are sieved through 20 mesh and 50 mesh, they are subjected to a certain firing system (heating at 25°C / min to 600°C, then at 5min / °C to 700°C, and finally at 25°C / min to 1230°C, and keep it warm for 30 minutes) and sinter to obtain 20-50 mesh colored sand.

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Abstract

The invention provides ceramic color sand and a preparation method thereof. The ceramic color sand comprises the following raw materials in parts by weight: 100 parts of solid wastes, 5 to 110 parts of plasticizer, 12 to 28 parts of silica fume, 0.1 to 10 parts of pigment, 0.5 to 2 parts of water reducer and 22 to 39 parts of water. The ceramic color sand has the advantages that the solid wastes are used as the main raw material, and are combined with other ceramic raw materials and pigment, so as to prepare the integral artificial color pottery sand through granulating, drying and sintering; the problem of pollution by the solid wastes is effectively relieved, and the problems of complicated artificial color sand preparation technology, destruction to ecological environment, poor degree of sphericity, easiness in stripping and separation of outer coating layer and inner core, short service life and the like are solved.

Description

technical field [0001] The invention belongs to the field of solid waste utilization, and in particular relates to ceramic colored sand and a preparation method thereof. Background technique [0002] Some solid wastes, such as fly ash, coal gangue, tailings, slag, etc., are piled up in a huge amount in my country and have a low utilization rate. Long-term stacking will pollute the environment and endanger human health. Therefore, it is very necessary to provide new ways for the resource utilization of these solid wastes. Using these solid wastes to prepare colored sand is a new way of utilization. These solid wastes contain a large amount of silicon-aluminum components, which can be used as the main raw material for preparing colored sand. [0003] Colored sand can be used as surface aggregate of permeable bricks, asphalt tiles, colored pavement, etc. It is an important building decoration material, which is divided into natural colored sand and artificial colored sand. Na...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/02
CPCC04B18/023C04B18/08C04B14/106C04B14/104C04B18/146C04B14/30C04B18/141C04B18/12
Inventor 贾屹海赵凯何伟发王川行常杰善
Owner 阳江清大环保科技有限公司
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