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Ceramsite prepared by using smelting wastes, and preparation method thereof

A technology of waste slag and ceramsite, which can be used in applications, clay products, household utensils, etc., and can solve problems such as lack

Active Publication Date: 2015-07-15
DONGGUAN YICHENG ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently a lack of such a feasible, simple and practical method for processing smelting waste residues with good social and economic benefits. Methods for materials applied in construction, agriculture, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0112] The preparation method of the ceramsite prepared by utilizing smelting waste slag of the present embodiment comprises the following preparation steps:

[0113] a. First pulverize the dirty acid slag with a pulverizer to form dirty acid slag particle powder, then sieve the dirty acid slag particle powder with a 270-mesh sieve, and filter the dirty acid slag particle powder that passes through the sieve to be dirty acid slag powder;

[0114] b, b1): the mass percentage is 5% silicate, 55% quartz powder, 5% sodium lauryl sulfate, 9% carbon powder, 9% iron powder, 12% starch, 5% % manganese oxide is pulverized first, then ball milled, and finally dry-mixed evenly to make a solidifying agent finished product; b2): take by weight 10% of polluted acid slag powder, 40% of urban sludge, and 20% of pulverized coal Ash, 20% coal gangue, 10% curing agent made by step b1) and mix and stir evenly to obtain ceramsite powder;

[0115] c. Transport the ceramsite powder to the ball form...

Embodiment 2

[0120] The preparation method of the ceramsite prepared by utilizing smelting waste slag of the present embodiment comprises the following preparation steps:

[0121] a. First, the aluminum slag is pulverized with a pulverizer to form an aluminum slag particle powder, and then the aluminum slag particle powder is screened through a 300-mesh sieve, and the aluminum slag particle powder screened through the sieve is the aluminum slag powder;

[0122] b, b1): the mass percentage is 55% silicate, 5% quartz powder, 1% sodium lauryl sulfate, 1% carbon powder, 1% iron powder, 1% starch, 1 % of manganese oxide is pulverized first, then ball milled, and finally dry-mixed evenly to make a solidifying agent finished product; b2): take 90% of aluminum slag powder, 5% of urban sludge, and 4% of fly ash by mass percentage , 1% of the curing agent made by step b1) and mixed and stirred evenly to obtain ceramsite powder;

[0123] c. Transport the ceramsite powder to the ball forming disc of ...

Embodiment 3

[0128] The preparation method of the ceramsite prepared by utilizing smelting waste slag of the present embodiment comprises the following preparation steps:

[0129] a. Manganese slag is first pulverized with a pulverizer to form manganese slag particle powder, and then the manganese slag particle powder is screened with a 320-order sieve, and the manganese slag particle powder screened through the sieve is manganese slag powder;

[0130] b, b1): the mass percentage is 15% silicate, 45% quartz powder, 5% sodium lauryl sulfate, 9% carbon powder, 9% iron powder, 12% starch, 5% % manganese oxide is pulverized first, then ball milled, and finally dry-mixed evenly to make a solidifying agent finished product; b2): take 35% manganese slag powder, 30% urban sludge, and 15% fly ash by mass percentage , 15% coal gangue, 5% curing agent made by step b1) and mixed and stirred evenly to obtain ceramsite powder;

[0131] c. Transport the ceramsite powder to the ball forming disc of the b...

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Abstract

The invention relates to the technical field of harmlessness treatment of smelting wastes, and especially relates to a ceramsite prepared by using smelting wastes, and a preparation method thereof. The ceramsite comprises 10-90% of smelting waste powder, 5-40% of municipal sludge, 4-20% of fly ash, 0-20% of gangue and 0.1-10% of a curing agent. The preparation method of the ceramsite comprises the following steps: 1, crushing the smelting wastes by using a crusher to prepare the smelting waste powder; 2, weighing the smelting waste powder, the municipal sludge, the fly ash, gangue and the curing agent, mixing, and uniformly stirring to prepare ceramsite powder; 3, conveying the ceramsite powder to a ball forming granulation machine, and carrying out granulation molding to prepare ceramsite balls; 4, drying the ceramsite balls; and 5, calcining he dried ceramsite balls to prepare the finished ceramsite. The ceramsite prepared in the invention has the advantages of light weight, environmental protection and wide uses; and the preparation method recycles the smelting wastes, and has good economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of harmless treatment of smelting waste residues, in particular to ceramsite prepared from smelting waste residues and a preparation method thereof. Background technique [0002] At present, smelters produce a large amount of waste slag during the smelting process. These waste slags have basically no value for recycling or refining precious metals, and also contain toxic heavy metals such as copper, lead, zinc, cadmium, arsenic, and mercury. Polluted acid slag is a productive waste, which is a by-product of the resource recovery process of zinc hydrometallurgy. It contains mercury, arsenic, cadmium, lead and other heavy metal poisonous substances that are most harmful to humans and animals. These heavy metal toxic substances enter the atmosphere and water bodies After being exposed to various environments such as soil and soil, it can be absorbed by animals through various channels such as the respiratory tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/132C04B33/138
CPCY02P40/60
Inventor 胡国栋李毅城雷铁军
Owner DONGGUAN YICHENG ENVIRONMENTAL TECH
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