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Method for producing light-weight energy-saving brick for buildings from municipal sludge

A technology of urban sludge and energy-saving bricks, which is applied in the production, application, and household appliances of ceramic materials, can solve the problems of high cost, high energy consumption, and not being effectively promoted, and achieves simple methods, energy saving, and strong solution The effect that cannot be compatible with thermal insulation performance

Inactive Publication Date: 2013-04-03
MAANSHAN HUAYU ENVIRONMENTAL PROTECTION EQUIP MFG
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AI Technical Summary

Problems solved by technology

At present, using sludge incineration ash as an admixture for sintered bricks is one of the important ways to recycle urban sludge, but due to the excessive energy consumption and high cost of its production process, it has not been effectively promoted in my country so far.

Method used

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Embodiment Construction

[0016] A method for producing building lightweight energy-saving bricks by using urban sludge, comprising the following steps:

[0017] (1) Add urban sludge with a moisture content of more than 80% to quicklime equivalent to 40% of the sludge weight and 10% construction masonry waste powder, mix and stir evenly, and age for 7-10 days to make the moisture content ≤60%;

[0018] (2) Send municipal sludge with a moisture content of ≤60% into the agitator through a conveyor belt, and at the same time add straw-coated particles, fly ash, clay, phosphate slag, ceramsite, and modified seafoam to the agitator Stone, volcanic rock, zeolite, and coconut shell charcoal were stirred evenly at a speed of 180r / min to form a mixed sludge. The weight parts (kg) of each raw material were as follows: 65 parts of municipal sludge, 8 parts of straw-coated particles, and 5 parts of powder Coal ash, 8 parts of attapulgite, 5 parts of phosphate slag, 10 parts of ceramsite, 4 parts of mo...

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Abstract

The invention discloses a method for producing a light-weight energy-saving brick for buildings from municipal sludge. In the method, raw materials for brick manufacturing comprise 60-70 parts of municipal sludge, 5-10 parts of straw coated particle, 4-6 parts of fly ash, 5-10 parts of attapulgite, 4-6 parts of phosphorite slag, 8-12 parts of haydite, 3-5 parts of modified meerschaum, 15-20 parts of volcanic rock, 10-20 parts of zeolite and 5-10 parts of cocoanut charcoal. The manufactured sludge brick has the advantages of light weight, high strength, good temperature and sound insulation effect, favorable water resistance, less deformation possibility, high safety, no pollution, energy saving, environment friendliness and the like. According to the invention, the method is simple and easy to operate, the raw materials are wide in sources, the cost is low, the energy is saved, and the casual discharge of municipal sludge is reduced, thereby achieving favorable social benefits and economic benefits.

Description

technical field [0001] The invention relates to a method for manufacturing building materials, in particular to a method for producing lightweight energy-saving bricks for buildings by using urban sludge. Background technique [0002] With the acceleration of urbanization in my country, the rate of urban sewage treatment has increased year by year, and the number of urban sewage treatment plants and sludge production have also increased. At present, the amount of sludge (dry mass) discharged by urban sewage treatment plants in my country is about 1.3 million tons per year, and it is growing rapidly at an annual growth rate of 10%. Sludge pollutants have long-term toxicity and non-degradability. If they are allowed to discharge disorderly, they will become a dangerous secondary pollution source and enter the food chain through the atmosphere, groundwater, surface water, and soil, seriously threatening human health. Therefore, how to properly dispose of municipal sludge has b...

Claims

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Application Information

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IPC IPC(8): C04B33/132
CPCY02P40/69Y02P40/60
Inventor 权岚
Owner MAANSHAN HUAYU ENVIRONMENTAL PROTECTION EQUIP MFG
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