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Aeration block for preparing residual aluminum ash

An aerated block and residual ash technology, applied in the field of aerated blocks, can solve the problems of accumulation in the factory area or landfill, etc., and achieve the effect of low production cost, high strength, and not easy to damage

Inactive Publication Date: 2018-05-04
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aluminum ash just out of the furnace contains a large amount of metallic aluminum. Based on the current aluminum slag recycling process, there are certain shortcomings. Only part of the metallic aluminum can be effectively recycled, and the remaining waste aluminum slag is piled up in the factory area or landfilled.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The present application will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention.

[0010] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to examples.

[0011] One of the embodiments of the present invention is:

[0012] For the aerated block prepared with aluminum ash residual ash of the present invention, first, the aluminum ash residual ash is ball-milled through 120 sieves, poured into water at 60°C at a mass ratio of 1:10, stirred for 5 minutes, and left at a constant temperature for 30 minutes to remove Impurities that float on the surface of the water. It was taken out after reacting for 8 hours using an ult...

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PUM

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Abstract

The invention discloses an aeration block for preparing residual aluminum ash. The aeration block is prepared the following raw material components in parts by weight: 45-60 parts of impurity-removedresidual aluminum ash, 3-5 parts of gypsum, 15-20 parts of quick lime, 5-8 parts of silica fume, 5-8 parts of diluted sulphurous acid slurry waste liquid, 5-10 parts of engineering sand and 6-12 partsof ordinary Portland cement; and the aeration block is further prepared from the following raw material components in percentage by weight of the total amount of the ordinary Portland cement and thequick lime: 0.3-0.5% of citric acid, 0.5%-1% of a high-performance water reducer, 0.5%-1% of rock sand crystals and 0.1%-0.3% of calcium lignosulphonate. By adding additives such as the high-performance water reducer, the early strength of the aeration block is high.

Description

technical field [0001] The present disclosure generally relates to the field of building materials, specifically to the field of manufacturing aerated blocks, and in particular to an aerated block prepared from residual aluminum ash. Background technique [0002] With the rapid development of my country's economy, the demand for aluminum continues to increase. my country has become the world's largest aluminum producer. With the wide application of metal aluminum, the production of aluminum ash is also increasing. Aluminum ash is the product of the slag produced in the production process of electrolytic aluminum or cast aluminum after cooling and processing, and it is a renewable resource. At present, the processing method of aluminum ash in my country is mainly based on accumulation. On the one hand, slag piles occupy a large amount of land; [0003] Aluminum ash contains aluminum and a variety of valuable elements, mainly composed of aluminum metal, oxides, chlorides an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/02C04B18/02C04B20/04C04B20/02C04B18/14
CPCC04B18/021C04B20/04C04B28/04C04B14/02C04B24/06C04B2103/302C04B2103/0068C04B24/18C04B38/02C04B40/024C04B18/144C04B18/146C04B24/001C04B20/026C04B20/023Y02W30/91
Inventor 倪红军唐伟佳吕帅帅汪兴兴朱昱顾涛李志扬周一丹
Owner NANTONG UNIVERSITY
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