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Method for preparing baking-free bricks from waste aluminum ash residues

A technology of unburned bricks and aluminum ash, which is applied in the field of preparing unburned bricks, can solve problems such as groundwater pollution and dust pollution, and achieve the effects of less energy consumption, low production costs, and reduced environmental pollution

Active Publication Date: 2017-03-08
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The waste aluminum ash used to make flocculants can only be piled in the aluminum ash waste pool, which can easily cause groundwater pollution and dust pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing burn-free bricks with waste aluminum ash slag, the raw material formula for preparing burn-free bricks is: 70 parts of waste aluminum ash slag, 7 parts of water-quenched slag, 3 parts of silica fume powder, Portland cement 3 parts, 12 parts of slaked lime, 4 parts of anhydrous calcium sulfate, 2 parts of sodium chloride, 0.04 parts of triethanolamine, 0.7 parts of sodium iodide, 0.5 parts of polythirteen aluminum and 10 parts of water, of which Portland cement uses 32.5 Ordinary Portland cement, the method for preparing unburned bricks comprises the following steps:

[0021] (1) After picking out the sundries of the waste aluminum ash, dry it at 80°C for 6 hours, and cool it naturally; weigh the waste aluminum ash, water-quenched slag and iodide After the sodium is mixed, it is pulverized, passed through a 120-mesh sieve to obtain a pulverized mixture, and placed for 24 hours after mixing;

[0022] (2) Take ordinary Portland cement, silica fume p...

Embodiment 2

[0028] A method for preparing burn-free bricks with waste aluminum ash slag, the raw material formula for preparing burn-free bricks is: 70 parts of waste aluminum ash slag, 6 parts of water-quenched slag, 4 parts of silica fume powder, Portland cement 3 parts, 12 parts of slaked lime, 4 parts of anhydrous calcium sulfate, 3 parts of sodium chloride, 0.03 parts of triethanolamine, 0.6 parts of sodium iodide, 0.7 parts of polythirteen aluminum and 11 parts of water, of which Portland cement uses 42.5 Ordinary Portland cement, the method for preparing unburned bricks comprises the following steps:

[0029] (1) After sorting out the sundries of the discarded aluminum ash, dry at 120°C for 4 hours, and cool naturally. Weigh the waste aluminum ash, water-quenched slag and sodium iodide according to the formula for preparing waste aluminum ash slag and sodium iodide, mix them and grind them, pass through a 150-mesh sieve to obtain a pulverized mixture, and place it for 36 hours afte...

Embodiment 3

[0036]A method for preparing burn-free bricks with waste aluminum ash slag, the raw material formula for preparing burn-free bricks is as follows in parts by weight: 67 parts of waste aluminum ash slag, 8 parts of water-quenched slag, 5 parts of silica fume powder, Portland cement 4 parts, 12 parts of slaked lime, 4 parts of anhydrous calcium sulfate, 3 parts of sodium chloride, 0.05 parts of triethanolamine, 0.8 parts of sodium iodide, 1 part of polythirteen aluminum and 12 parts of water, of which Portland cement uses 32.5 Ordinary Portland cement, the method for preparing unburned bricks comprises the following steps:

[0037] (1) After sorting the sundries of the discarded aluminum ash, dry at 180° C. for 2.5 hours, and cool naturally. Weigh the waste aluminum ash, water-quenched slag and sodium iodide according to the formula for preparing the raw material of the unburned bricks, then pulverize it, pass through a 200-mesh sieve to obtain the pulverized mixture, and place ...

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Abstract

The invention relates to a method for preparing baking-free bricks from waste aluminum ash residues. The method has the advantages that the production cost of the baking-free bricks is low, the energy consumption is low, the manufacturing time is short, and the environmental pollution caused by waste aluminum ash residues is reduced. In addition, the baking-free brick prepared by the method disclosed by the invention is high in compressive strength. The raw materials used in the method for preparing the baking-free bricks from the waste aluminum ash residues are waste aluminum ash residues, water-quenched slag, silica fume powder, anhydrous calcium sulfate, silicate cement, slaked lime, sodium chloride, sodium iodide, Al (13) polymer, triethanolamine and water. The method for preparing the baking-free bricks from waste aluminum ash residues comprises the following steps: (1) preparing crushed mixture; (2) preparing a waste aluminum ash residue raw material mixture; (3) preparing a baking-free brick mixture; (4) forming a baking-free brick; and (5) curing the baking-free brick.

Description

technical field [0001] The invention relates to the technical field of preparing unburned bricks, in particular to a method for preparing unburned bricks by using waste aluminum ash. Background technique [0002] Unburned bricks are also called non-fired bricks or new wall bricks. It does not specifically refer to a certain type of wall brick, but refers to a large class of non-sintered bricks that meet the direction of waste utilization, soil saving, energy saving, green environmental protection, and sustainable development, and meet the technical requirements for load-bearing, safety, and durability of building walls. , New solid or hollow wall bricks. There are four types of solid waste that can be used as raw materials for unburned bricks: coal-based solid waste, iron and steel industry metallurgical waste, non-ferrous metal smelting slag, chemical industry solid waste, and mining solid waste. Coal-based solid waste mainly includes fly ash, slag, coal gangue, etc.; the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B18/144C04B18/141C04B18/146C04B22/064C04B22/143C04B22/124C04B24/122C04B22/12C04B22/06
Inventor 李小忠徐强强陈寒松
Owner ZHEJIANG NORMAL UNIVERSITY
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