Multifunctional steel-slag ecological environment-friendly water-permeable brick and preparation method thereof

A permeable brick and multi-functional technology, applied in the field of comprehensive utilization of solid waste resources, can solve the problems of low water permeability, poor stability, low steel slag content, etc., and achieve both water permeability and wear resistance, low production cost, The effect of high slag content

Inactive Publication Date: 2017-02-01
云南天朗再生资源有限责任公司
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the current technical problems of steel slag permeable bricks such as poor stability, low water permeability, and low steel slag content, the present invention provides a multifunctional steel slag ecological environment-friendly permeable brick and its preparation method, so that the permeable brick has the ability to absorb heavy metals and purify water. the role of

Method used

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  • Multifunctional steel-slag ecological environment-friendly water-permeable brick and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0034] A. Steel slag pretreatment: use steel slag with f-CaO (free calcium oxide) content of 6%, the accumulation thickness is less than 0.5m, the average amount of ultraviolet radiation outdoors is 5000 MJ / square meter, and the number of daily sun exposure is 150 hours per month The site is exposed to the sun and watered once a day to ensure that all the bricks are soaked for 2 months; the steel slag after being exposed to the sun is screened into steel slag powder of 10mm steel slag gravel;

[0035] B, batching: carry out batching according to the raw material of following parts by weight:

[0036] Base: 70 parts of steel slag aggregate, 20 parts of mineral powder, 10 parts of water;

[0037] Surface layer: 75 parts of steel slag sand, 16 parts of cement, 6 parts of water, 2 parts of toner;

[0038] Wherein, the steel slag aggregate is mixed with one or more of steel slag powder 10mm, so that Become a steel slag material with a particle size > 1.25mm and a proportion > 80%...

Embodiment 2

[0045]A. Steel slag pretreatment: Use steel slag with 3% f-CaO (free calcium oxide) content, pile up thickness of 0.5m, and carry out in a site with an average outdoor ultraviolet radiation of 4000 MJ / m2 and a monthly sun exposure of 120 hours Expose to the sun and water once a day to ensure that all the bricks are soaked for one month; the steel slag after being exposed to the sun on the site is sieved into steel slag powder of 10mm steel slag gravel;

[0046] B, batching: carry out batching according to the raw material of following parts by weight:

[0047] Base: 90 parts of steel slag aggregate, 8 parts of mineral powder, 5 parts of water;

[0048] Surface layer: 85 parts of steel slag sand, 10 parts of cement, 5 parts of water;

[0049] Wherein, the steel slag aggregate is mixed with one or more of steel slag powder 10mm, so that Become a steel slag material with a particle size > 1.25mm and a proportion > 80%;

[0050] The steel slag sand is the steel slag material ob...

Embodiment 3

[0056] A. Steel slag pretreatment: use steel slag with f-CaO (free calcium oxide) content of 4%, the accumulation thickness is less than 0.5m, the average amount of ultraviolet radiation outdoors is more than 4500 MJ / square meter, and the monthly sun exposure is 130 hours The above sites are exposed to the sun and watered once a day to ensure that all the bricks are soaked for 3 months; the steel slag after being exposed to the sun is screened into steel slag powder of 10mm steel slag gravel;

[0057] B, batching: carry out batching according to the raw material of following parts by weight:

[0058] Base: 80 parts of steel slag aggregate, 10 parts of cement, 8 parts of water;

[0059] Surface layer: 80 parts of steel slag sand, 20 parts of cement, 10 parts of water, 1 part of toner;

[0060] Wherein, the steel slag aggregate is mixed with one or more of steel slag powder 10mm, so that Become a steel slag material with a particle size > 1.25mm and a proportion > 80%;

[006...

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Abstract

The invention discloses a multifunctional steel-slag ecological environment-friendly water-permeable brick and a preparation method thereof. The multifunctional steel-slag ecological environment-friendly water-permeable brick is prepared from the following raw materials in parts by weight: a basal layer which is prepared from 70 to 90 parts of steel-slag aggregate, 8 to 20 parts of cement or mineral powder and 5 to 10 parts of water; a surface layer which is prepared from 75 to 85 parts of steel-slag sand, 10 to 20 parts of cement, 5 to 10 parts of water and 0 to 2 parts of toner. Through steel-slag pretreatment, batching, mixing, molding and maintenance, the multifunctional steel-slag ecological environment-friendly water-permeable brick is obtained. As having a high steel-slag blending amount, favorable water permeability and a pressure bearing function, the obtained steel-slag water-permeable brick can form a partially alkaline environment and a microscopic pore passage structure on the surface and in the interior of the water-permeable brick, furthermore achieving the effects of adsorbing heavy metal and purifying water. The steel-slag blending amount is high; the steel-slag utilization rate is high; the production cost is low; the environment protection and the resource saving are facilitated; a production method is simple, is easy to implement, is good in universality and is convenient to popularize.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of solid waste resources, and in particular relates to a multifunctional steel slag ecological environment-friendly permeable brick and a preparation method thereof. Background technique [0002] my country is a country with a large steel output. In the process of crude steel production, 0.10-0.14 tons of steel slag is produced per ton of steel. The annual output of steel slag in my country exceeds 100 million tons, and its utilization rate is only 20%. The resource utilization technology of steel slag is seriously lagging behind. Untreated slag dumps occupy land resources, threaten the water, soil and air safety of the surrounding environment, and cause a waste of resources. The promulgation of the new "Environmental Protection Law" on January 1, 2015 puts forward higher requirements for environmental protection. In the proposal of the Central Committee of the Communist Party of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B30/00C04B18/14C04B20/02
CPCC04B18/142C04B20/02C04B28/00C04B30/00C04B2111/00017C04B2111/00284C04B2111/00612C04B2201/20C04B2201/50C04B2103/54Y02W30/91
Inventor 胡斌祝星向建国张技付建明马锐林杨朝陈锐张润根
Owner 云南天朗再生资源有限责任公司
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