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Calcium silicate material prepared from waste ceramic powder and preparation method thereof

A technology of waste porcelain powder and calcium silicate, which is applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of waste ceramics polluting the environment, and achieve the effect of cost saving and stable quality

Inactive Publication Date: 2011-01-19
NANJING MINGYUHENG MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the shortage that a large number of waste ceramics are abandoned and cause serious environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A calcium silicate material prepared by using waste porcelain powder described in this embodiment includes the following raw materials in kilograms: waste porcelain powder 60, calcareous raw material (quicklime) 31, Portland cement 9, wherein The chemical composition of waste porcelain powder is:

[0018] IL SiO 2 al 2 o 3 Fe 2 o 3 TiO 2 CaO MgO K 2 O Na 2 o

[0019] 2.43 41.64 10.73 0.38 0.07 0.68 1.21 1.31 1.55

[0020] The preparation method of described calcium silicate material, comprises the following steps:

[0021] 1) Preparation of waste porcelain powder: directly obtained from the ceramic production process;

[0022] 2) Ingredients: First, weigh the raw materials according to the following weight (kg): waste porcelain powder 60, calcareous raw material (quicklime) 31, Portland cement 9; then mix the weighed composition with water to prepare a moisture content of 15% (weight percent) powder;

[0023] 3) Molding: Firstly, the above-mention...

Embodiment 2

[0027] A calcium silicate material prepared by using waste porcelain powder described in this embodiment includes the following weight (kg) of raw materials: waste porcelain powder 65, calcareous raw material (quicklime) 35, wherein the chemical waste porcelain powder Composed of:

[0028] IL SiO 2 al 2 o 3 Fe 2 o 3 TiO 2 CaO MgO K 2 O Na 2 o

[0029] 2.64 45.11 11.62 0.40 0.08 0.74 1.31 1.43 1.67

[0030] The preparation method of the calcium silicate material described in this embodiment is the same as embodiment 1, and the obtained density is 1.25 g / cm 3 Calcium silicate material, and stacked into the warehouse.

Embodiment 3

[0032] A calcium silicate material prepared by using waste porcelain powder in this embodiment includes the following raw materials by weight (kg): waste porcelain powder 35 , other siliceous raw materials 5 , calcareous raw materials 55 , and reinforcing fibers 5 .

[0033] The preparation method of the calcium silicate material described in this embodiment is the same as that in Example 1.

[0034] The sources of waste porcelain powder are waste materials of silicate products such as architectural ceramics, daily-use porcelain, and sanitary ceramics. Waste porcelain powder can be directly obtained by ceramic polishing and other processes, or can be obtained by crushing ceramics and ball milling. Other siliceous raw materials are one or a combination of siliceous raw materials with high silica content such as silica, silica sand, rock with high quartz content, quartz powder, diatomaceous earth, and mica.

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Abstract

The invention relates to a calcium silicate material prepared from waste ceramic powder. The material comprises the following raw materials in part by weight: 35 to 70 parts of waste ceramic powder, 0 to 35 parts of other siliceous raw materials, 35 to 55 parts of calcareous raw material, 0 to 15 parts of reinforcing fiber and 0 to 10 parts of Portland cement, wherein the other siliceous raw materials are one or more of quartz powder, diatomite and mica. The calcium silicate material has the following advantages that: the waste ceramic powder is used for gradually replacing the primary siliceous raw material in the raw materials for producing the calcium silicate material; the cost is saved and environmental protection and quality stability are ensured; and the produced calcium silicate material can be used as gas filling blocks, calcium silicate boards or exterior wall bricks or as a porous carrier material.

Description

technical field [0001] The invention relates to a calcium silicate material prepared by using waste porcelain powder and a preparation method thereof. Background technique [0002] Calcium silicon board is the main variety of calcium silicate material, which was first used for heat insulation of high temperature furnace. For example, "In order to improve the clinker output and quality of the shaft kiln, to facilitate the coal blending of raw materials and reduce the coal consumption of clinker firing, it is necessary to strengthen the insulation of the shaft kiln body. The usual method is to adopt the internal insulation method, and the total thickness of the refractory layer and the insulation layer should be ≥650mm, a calcium silicate board or aluminum silicate fiber felt of ≥60mm should be added near the kiln wall. Calcium silicate board is a high-grade ceiling and wall material commonly used in the world, and it is a commonly used building board in developed countries s...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B30/00C04B18/16
CPCY02W30/91
Inventor 朱孔军
Owner NANJING MINGYUHENG MATERIAL TECH
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