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Lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge

A technology for printing and dyeing sludge and municipal sludge, applied in the directions of climate sustainability, sustainable waste treatment, solid waste management, etc. The effect of improving production efficiency and reducing usage

Active Publication Date: 2011-11-23
江门市绿润炭化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, there have been many studies on using urban sludge as a raw material to partially replace clay for firing ceramsite, and there are also studies on printing and dyeing sludge instead of clay for firing ceramsite. Printing and dyeing sludge is produced in large quantities in areas where the textile and printing and dyeing industries are concentrated. Sludge has become the main solid waste that pollutes the environment, but there is currently no lightweight ceramsite made from municipal sludge and printing and dyeing sludge

Method used

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  • Lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A lightweight ceramsite made from urban sludge and printing and dyeing sludge, which is composed of the following raw materials in weight percentage: 38% of urban sludge particles, 40% of printing and dyeing sludge particles, 14% of fly ash, 6% of limestone, Iron powder 2%.

[0042] In terms of weight percentage, the chemical composition content of municipal sludge particles is: SiO 2 10.26%, Al 2 o 3 15%, Fe 2 o 3 1.37%, CaO 3%, MgO 0.78%, K 2 O 0.86%, Na 2 O 1.55%, loss on ignition is 55%; by weight percentage, the chemical composition content of printing and dyeing sludge particles is: SiO 2 20%, Al 2 o 3 7.85%, Fe 2 o 3 10.11%, CaO 1.28%, MgO 0.52%, K 2 O 2.8%, Na 2 O 2.33%, loss on ignition 45%.

[0043] A kind of lightweight ceramsite made by using municipal sludge and printing and dyeing sludge, which is made by the following preparation steps:

[0044] (a) press-filter the municipal sludge and the printing and dyeing sludge respectively, so t...

Embodiment 2

[0051] A lightweight ceramsite made from urban sludge and printing and dyeing sludge, which is composed of the following raw materials in weight percentage: 41% of urban sludge particles, 40% of printing and dyeing sludge particles, 13% of fly ash, 4% of limestone, Iron powder 2%.

[0052] In terms of weight percentage, the chemical composition content of municipal sludge particles is: SiO 2 48.24%, Al 2 o 3 7.83%, Fe 2 o 3 6.65%, CaO 1.02%, MgO 1.83%, K 2 O 2.55%, Na 2 O 0.8%, loss on ignition 25%; by weight percentage, the chemical composition content of printing and dyeing sludge particles is: SiO 2 5.37%, Al 2 o 3 15.67%, Fe 2 o 3 5.38%, CaO 3.08%, MgO 1.02%, K 2 O 2.12%, Na 2 O 1.83%, loss on ignition is 46%.

[0053] A kind of lightweight ceramsite made by using municipal sludge and printing and dyeing sludge, which is made by the following preparation steps:

[0054] (a) press-filter the municipal sludge and the printing and dyeing sludge respective...

Embodiment 3

[0061] A lightweight ceramsite made from urban sludge and printing and dyeing sludge, which is composed of the following raw materials in weight percentage: 50% of urban sludge particles, 33% of printing and dyeing sludge particles, 12% of fly ash, 3% of limestone, Iron powder 2%.

[0062] In terms of weight percentage, the chemical composition content of municipal sludge particles is: SiO 2 30.35%, Al 2 o 3 11.58%, Fe 2 o 3 4.44%, CaO 1.82%, MgO 0.95%, K 2 O 2.54%, Na 2 O 1.47%, loss on ignition is 40%; by weight percentage, the chemical composition content of printing and dyeing sludge particles is: SiO 2 7.34%, Al 2 o 3 12.31%, Fe 2 o 3 2.38%, CaO 1.38%, MgO 0.67%, K 2 O 0.52%, Na 2 O 1.15%, loss on ignition is 62%.

[0063] A kind of lightweight ceramsite made by using municipal sludge and printing and dyeing sludge, which is made by the following preparation steps:

[0064] (a) press-filter the municipal sludge and the printing and dyeing sludge respe...

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Abstract

The invention belongs to the technical field of sludge recycling / resource utilization, particularly relates to a lightweight ceramicite prepared from municipal sludge and printing / dyeing sludge. The lightweight ceramicite prepared from municipal sludge and printing / dyeing sludge provided by the invention is prepared from the following raw materials in percentage by weight: 30-50% of granular sludge, 30-50% of printing / dyeing granular sludge, 10-15% of fly ash, 2-6% of limestone, and 1-4% of iron powder; the lightweight ceramicite prepared according to the formula above has the advantages of light weight, good mechanical performance, environmentally-friendly and easily obtainable raw materials and low production cost; and the manufacturing method has the advantages of simplicity and high production efficiency.

Description

technical field [0001] The invention belongs to the technical field of sludge recycling and resource utilization, and in particular relates to a lightweight ceramsite manufactured by using urban sludge and printing and dyeing sludge. Background technique [0002] In the prior art, the production of lightweight ceramsite generally uses clay, fly ash, etc. as the main raw materials, supplemented by other additives and fluxes, so that the raw material composition meets the requirements for the production of ceramsite, and then swells at high temperature to produce It is a ceramsite product with high strength, light bulk density and good chemical stability. However, a large amount of clay will damage the ecological balance and environmental protection, and because fly ash is used more and more widely in the cement industry, the price is gradually rising, so other solid wastes are used as the main raw materials to replace clay and fly ash Firing ceramsite has good economic and e...

Claims

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Application Information

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IPC IPC(8): C04B18/30
CPCY02W30/91
Inventor 王金军王明生刘怡杨喜朋
Owner 江门市绿润炭化科技有限公司
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