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Calcined rounded colored sand

A calcining and rounding technology, which is applied to clay mixing devices, grinders, clay preparation devices, etc., can solve the problems of cracks in sand and gravel particles, erosion of decorative layers, sharp edges and corners, etc., to achieve long shelf life, uniform color, and increased use. The effect of longevity

Pending Publication Date: 2022-04-15
河北久申防水建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The colored sand products on the market now have sharp edges and corners, which are not round, and the four seasons will cause thermal expansion and contraction. The sandstone particles will have cracks when they have edges and corners. In wet and rainy weather, the surface of the decorative layer will be eroded, resulting in a short service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of calcined round colored sand, its manufacturing process is as follows.

[0019] Step 1: The original sand is rounded, and the basalt is poured into the sander, and the edges and corners of the basalt are rounded to obtain rounded basalt;

[0020] Step 2: Mix raw materials, pour the rounded basalt obtained in Step 1 into a mixing tank, add kaolin and pigments and mix for 1 minute, then add binder and stir for 30 minutes to achieve full mixing;

[0021] Step 3: raw material drying, conveying the mixture obtained in step 2 to a kiln for drying for 20 minutes to obtain a dry material;

[0022] Step 4: Secondary mixing, transfer the dry material obtained in step 3 out of the kiln for packaging, then pour it back into the mixing tank, add glaze and binder to completely wrap the surface of each particle;

[0023] Step 5: preheating and calcining, conveying the secondary mixture obtained in step 4 into a kiln for preheating at 300°C, and calcining at 800°C to obtain a...

Embodiment 2

[0026] A kind of calcined round colored sand, its manufacturing process is as follows.

[0027] Step 1: The original sand is rounded, and the granite is poured into the sander, and the edges and corners of the granite are rounded to obtain rounded basalt;

[0028] Step 2: Mix raw materials, pour the rounded granite obtained in Step 1 into a mixing tank, add kaolin and pigments and mix for 1 minute, then add binder and stir for 30 minutes to achieve full mixing;

[0029] Step 3: raw material drying, conveying the mixture obtained in step 2 to a kiln for drying for 20 minutes to obtain a dry material;

[0030] Step 4: Secondary mixing, transfer the dry material obtained in step 3 out of the kiln for packaging, then pour it back into the mixing tank, add glaze and binder to completely wrap the surface of each particle;

[0031] Step 5: preheating and calcining, conveying the secondary mixture obtained in step 4 into a kiln for preheating at 290°C, and calcining at a temperature ...

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Abstract

The invention discloses calcined round colored sand which is prepared from the following raw materials in parts by weight: 95% of crude sand, 1% of pigment and 4% of binder and glaze. The preparation method comprises the steps of raw sand rounding, raw material mixing, raw material drying, secondary mixing, preheating calcination and cooling. Each particle is fully wrapped, glazed and calcined to form a glaze surface, so that the round and full colored sand is hard in surface, and is not easy to extrude and grind during production, and the surface is not easy to damage during high-speed stirring. The outer wall can resist acid rain, alkali rain and climate change, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of building materials, in particular to calcined round colored sand. Background technique [0002] Sintered colored sand is mainly used for all kinds of colored epoxy floors, real stone paint, various architectural coatings, sandstone boards, ABS modified linoleum, waterproof coiled materials, colored sand paintings and various high-end handicrafts, etc. It has bright colors and excellent weather resistance. Strong, wear-resistant, acid and alkali resistant, non-slip, seamless, high-grade and beautiful. The colored sand products on the market now have sharp edges and corners and are not round. The four seasons will cause thermal expansion and contraction due to environmental changes. Sand and gravel particles with edges and corners will produce cracks. In wet and rainy weather, the surface of the decorative layer will be eroded, resulting in a short service life. Contents of the invention [0003] The object of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28C3/00B24B31/00B28B11/00
CPCB28C3/00B24B31/00B28B11/00
Inventor 王春义
Owner 河北久申防水建筑材料有限公司
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