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Preparation method for water permeable ceramic brick with powder as raw material and prepared product

A permeable brick and powder technology, which is applied in the field of ceramic materials, can solve the problems of low reserves of block raw materials, etc., and achieve the effect of increasing resource utilization, high strength and wear resistance, and high porosity

Active Publication Date: 2017-07-11
JINGDEZHEN CERAMIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the wide application of ceramic permeable bricks, the reserves of massive raw materials suitable for preparing ceramic permeable bricks are becoming less and less, which has a significant impact and restriction on the development of ceramic permeable brick technology and applications.
At present, the powder with small particle size has not been applied in the preparation of ceramic permeable bricks, and has only been used in unfired permeable bricks.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this embodiment, a method for preparing a ceramic permeable brick using powder as a raw material, the steps are as follows:

[0025] (1) Mix 100 parts of shale powder, 2 parts of carbon powder, and 4 parts of water according to parts by weight, and then granulate, then burn to 1000°C for 3 hours and keep it warm for 1 hour to obtain granules with a particle size of Porous ceramic balls of 1mm and 4mm;

[0026] (2) Add 2wt% CMC and 5wt% water to the above-mentioned porous ceramic balls and stir evenly to distribute the material. The above-mentioned porous ceramic balls with a particle diameter of 4mm are used as the bottom layer as the bottom material, and the porous ceramic balls with a particle diameter of 1mm are laid on the bottom layer The above is the fabric, the thickness of the base material: fabric = 5:1; then it is pressed and formed under a pressure of 13MPa, and after drying at a temperature of 100°C, the moisture content of the green body is less than 0.5...

Embodiment 2

[0029] In this embodiment, a method for preparing a ceramic permeable brick using powder as a raw material, the steps are as follows:

[0030] (1) According to the parts by weight, mix 100 parts of fly ash, 5 parts of starch and 6 parts of water evenly and then granulate, then burn to 1050°C for 4 hours and keep it warm for 1 hour to obtain granular powder with a particle size of 2mm And 6mm porous ceramic ball;

[0031] (2) Add 1wt% CMC and 4wt% water to the above-mentioned porous ceramic balls and stir evenly to distribute the material. The above-mentioned porous ceramic balls with a particle diameter of 6mm are used as the bottom layer as the bottom material, and the porous ceramic balls with a particle diameter of 2mm are laid on the bottom layer The above is the fabric, the thickness of the base material: fabric = 6:1; then it is pressed and formed under a pressure of 14MPa, and after drying at a temperature of 110°C, the moisture content of the green body is less than 0....

Embodiment 3

[0034] In this embodiment, a method for preparing a ceramic permeable brick using powder as a raw material, the steps are as follows:

[0035] (1) Mix 100 parts of polished brick waste residue, 2 parts of starch, and 2 parts of water according to parts by weight, and then granulate them, then burn them to 950°C for 3.5 hours and keep them warm for 1 hour to obtain granules with a particle size of 2mm and 7mm porous ceramic balls;

[0036] (2) Add 2wt% CMC and 2wt% water to the above-mentioned porous ceramic balls and stir evenly to distribute the material. The above-mentioned porous ceramic balls with a particle diameter of 7mm are used as the bottom layer as the bottom material, and the porous ceramic balls with a particle diameter of 2mm are laid on the bottom layer The above is the fabric, the thickness of the base material: fabric = 7:1; then it is pressed and formed under a pressure of 15MPa, and after drying at a temperature of 120°C, the moisture content of the green bo...

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Abstract

The invention discloses a preparation method for a water permeable ceramic brick with a powder as a raw material, wherein the preparation method comprises the steps: firstly, granulating, and sintering the powder for a first time to obtain granular ceramic balls; and then distributing the ceramic balls, molding, drying and sintering for a second time to obtain the water permeable ceramic brick. In addition, the invention further discloses the product prepared by the preparation method. The ceramic ball particles are firstly prepared by the powder; with use of stacking of the ceramic ball particles and the pores between the ceramic ball particles, water retention and water permeability properties of the water permeable ceramic brick are achieved. The sources of the raw materials of the water permeable ceramic brick are enlarged, the use and dependency on block raw materials in a conventional preparation technology of a water permeable ceramic brick are reduced, and promotion of application and development of the water permeable ceramic brick technology is facilitated; at the same time, the resource utilization of an inorganic non-metallic waste powder is increased, and an important role is played in environmental management and protection.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to a method for preparing a ceramic permeable brick and a product thereof. Background technique [0002] Permeable bricks have good water permeability and air permeability, which can quickly infiltrate rainwater into the ground, replenish soil water and groundwater, and maintain soil moisture, thereby improving the living conditions of urban ground plants and soil microorganisms. At the same time, due to its good water permeability, the ground paved with permeable bricks can effectively relieve the flood discharge pressure of the urban drainage system, thereby reducing the accumulation and overflow of urban rainwater. The water seepage, moisturizing and breathable functions of permeable bricks can effectively inhibit the "urban heat island" effect. Therefore, permeable bricks have been more and more widely used. [0003] At present, the production method of the prior art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B38/02C04B38/00C04B33/32C04B33/135C04B33/132C04B35/626C04B33/04
CPCC04B33/04C04B33/1321C04B33/1324C04B33/1352C04B33/32C04B35/62204C04B35/62695C04B38/00C04B38/02C04B38/0645C04B38/068C04B2235/96C04B38/0074Y02P40/60
Inventor 梁健徐贵荣苗立锋江伟辉刘健敏
Owner JINGDEZHEN CERAMIC UNIV