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Light hollow ceramsite and production method thereof

A kind of ceramsite and light-weight technology, which is applied in the field of lightweight hollow ceramsite and its preparation, can solve the problems that it is not easy to form cavities and seals in molding, the space resistance of irregular ceramsite is large, and the quality of water and ash is not easy to control. The effects of circulation and cultivated land protection are obvious, the product integrity rate is improved, and the production cost is low.

Active Publication Date: 2014-06-18
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN 91110948.X "Shaft Kiln Cement Raw Meal Hollow Forming Equipment and Technology" proposes a similar method to prepare hollow ceramsite with irregular shape. When these ceramsite is used as light aggregate to prepare light concrete, the first shape is Irregularity, it is easy to produce stress concentration when forming a concrete structure. Secondly, the irregular ceramsite produces a large space resistance during mixing, and the ceramsite is easy to be destroyed, and the concrete is easy to mix unevenly. Furthermore, the above method is not easy to form a closed cavity. Hollow ceramsite makes it difficult to control the water-cement mass ratio when preparing lightweight aggregate concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: Hollow ceramsite of the present invention, the raw material used has two parts, pottery material and template material, pottery material is waste paper papermaking sludge (dry), fly ash, clay, the respective mass of three The fraction is: 40% of waste paper and papermaking sludge; 40% of fly ash; 20% of clay, the particle size of the three raw materials is ￡0.08mm, and the template material is polystyrene foam particles.

[0019] In the hollow ceramsite of the present invention, the polystyrene foam particles of the template material are spherical or spherical, and the particle diameter is in the range of 5-20 mm.

[0020] The hollow ceramsite of the present invention has a spherical or quasi-spherical finished product shape, and the intermediate cavity is also spherical, and the intermediate cavity is separated from the outside by a layer of ceramic structure with a wall thickness of 0.5-2.5 mm.

[0021] Hollow ceramsite of the present invention, its prep...

Embodiment 2

[0027] Embodiment 2: the hollow ceramsite of the present invention, the raw material used has two parts, pottery-forming material and formwork material, and pottery-making material is waste paper papermaking sludge (dry), fly ash, clay, and the respective masses of the three The fractions are: 30% of waste paper and papermaking sludge; 50% of fly ash; 20% of clay, the particle size of the three raw materials is ￡0.08mm, and the template material is polystyrene foam particles.

[0028] In the hollow ceramsite of the present invention, the polystyrene foam particles of the template material are spherical or spherical, and the particle diameter is in the range of 5-20 mm.

[0029] The hollow ceramsite of the present invention has a spherical or quasi-spherical finished product shape, and the intermediate cavity is also spherical, and the intermediate cavity is separated from the outside by a layer of ceramic structure with a wall thickness of 0.5-2.5mm.

[0030] Hollow ceramsite ...

Embodiment 3

[0036] Embodiment 3: the hollow ceramsite of the present invention, the raw material used has two parts, pottery material and formwork material, pottery material is waste paper papermaking sludge (dry), fly ash, clay, the respective mass of the three The fractions are: 30% of waste paper and papermaking sludge; 50% of fly ash; 20% of clay, the particle size of the three raw materials is ￡0.08mm, and the template material is polystyrene foam particles.

[0037] In the hollow ceramsite of the present invention, the polystyrene foam particles of the template material are spherical, spherical-like, and the particle diameter is in the range of 5-20mm.

[0038] The hollow ceramsite of the present invention has a spherical or quasi-spherical finished product shape, and the intermediate cavity is also spherical, and the intermediate cavity is separated from the outside by a layer of ceramic structure with a wall thickness of 0.5-2.5mm.

[0039] Hollow ceramsite of the present inventio...

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Abstract

The invention provides a light hollow ceramsite and a production method thereof and belongs to the technical field of artificial lightweight aggregate processing. The light hollow ceramsite is made of a ceramic forming material and a template material, wherein the ceramic forming material is composed of waste paper papermaking dry sludge, fly ash and clay, and the template material is composed of polyphenyl foam particles. The obtained light hollow ceramsite is spherical or similar to a sphere in appearance, a middle cavity is spherical or similar to a sphere, and the middle cavity is separated from the outside through a ceramic structure with wall thickness to be 0.5-2.5mm. According to the light hollow ceramsite, barrel pressure strength is 33MPa, stacking bulk weight is 300-500kg / m<3> and particle size is 5-20mm, and therefore the light hollow ceramsite can be used for preparing high performance light aggregate concrete or suspended bio-film ceramic filter materials used for sewage treatment.

Description

technical field [0001] The invention belongs to the technical field of artificial light aggregate processing, and in particular relates to a light hollow ceramsite and a preparation method thereof. Background technique [0002] At present, the widely used artificial lightweight aggregate is mainly intumescent ceramsite. The traditional manufacture of intumescent ceramsite is to use inflammable raw materials such as clay, shale or fly ash to mix with water and form into balls. Expansion characteristics, in the high-temperature rotary kiln, the porous sphere or spherical column is formed by puffing, and after cooling, it is swelled ceramsite, and they are mostly irregular sub-circular, sub-water chestnut and other shapes. The raw material for the production of intumescent ceramsite must be intumescent raw material, and this kind of raw material is rare in nature, so it is generally necessary to use additives to improve its expansion characteristics. Because the properties of c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/132
CPCY02P40/60
Inventor 雷团结樊传刚唐世敏李亚辉金仁才刘磊彬钱元弟盛海涛王孝平
Owner CHINA MCC17 GRP
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