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A kind of lightweight composite thermal insulation block and its preparation method

A composite thermal insulation and block technology is applied in the field of building materials to achieve the effects of reducing production costs, reducing environmental pollution and saving processing costs

Active Publication Date: 2016-08-24
贵州瑞泰实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned technical problems existing in the prior art, the present invention provides a kind of ferronickel slag that can have larger capacity, and then improves the treatment and consumption of ferronickel slag, avoids the need for ferronickel slag in the existing technology The cost of treatment and the problem of difficult treatment, and mixing it with cement materials to prepare nickel-iron slag composite insulation blocks with high performance, has good economic benefits and environmental protection value, and then the nickel-iron slag waste Resources are used more comprehensively

Method used

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  • A kind of lightweight composite thermal insulation block and its preparation method
  • A kind of lightweight composite thermal insulation block and its preparation method
  • A kind of lightweight composite thermal insulation block and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A lightweight composite thermal insulation block, which is formed by compounding a nickel-iron slag hollow block and a filling material; the raw material composition (by weight on a dry basis) of the nickel-iron slag hollow block is nickel-iron slag 80kg, cement 10kg, admixture 1kg; the raw material composition (by weight part on a dry basis) of the described filling material is ferronickel slag powder 80kg, gypsum 1kg, cement 3kg, lime 1kg, blowing agent 1kg.

[0035] The ferronickel slag has a particle size of ≥52.6% of 5mm, and a particle size of ≤20% of 0.15mm. The mass ratio ratio of nickel-iron slag is 0.38.

[0036] Described admixture is sodium carbonate.

[0037] The specific surface area of ​​the nickel-iron slag powder is 350㎡ / kg.

[0038] The lime is quicklime, its digestion temperature is 65° C., the digestion time is 24 minutes, and the mass percentage of CaO is 65%.

[0039] The foaming agent is aluminum powder paste.

[0040] The preparation method o...

Embodiment 2

[0045] A lightweight composite thermal insulation block, which is formed by compounding a nickel-iron slag hollow block and a filling material; the raw material composition (by weight on a dry basis) of the nickel-iron slag hollow block is nickel-iron slag 90kg, 20kg of cement, 0.5kg of admixture; the raw material composition (by weight on a dry basis) of the filling material is 90kg of ferronickel slag powder, 5kg of gypsum, 6kg of cement, 6kg of lime, and 2kg of blowing agent.

[0046] The ferronickel slag has a particle size of ≥52.6% of 10mm, and a particle size of ≤20% of 0.1mm. The mass ratio ratio of nickel-iron slag is 0.38.

[0047] Described admixture is sodium carbonate.

[0048] The specific surface area of ​​the nickel-iron slag powder is 360㎡ / kg.

[0049] The lime is quicklime, whose digestion temperature is 70° C., digestion time is 23 minutes, and the mass percentage of CaO is 70%.

[0050] The foaming agent is aluminum powder paste.

[0051] The preparatio...

Embodiment 3

[0056] A lightweight composite thermal insulation block, which is formed by compounding a nickel-iron slag hollow block and a filling material; the raw material composition (by weight on a dry basis) of the nickel-iron slag hollow block is nickel-iron slag 85kg, cement 15kg, admixture 0.1kg; the raw material composition (by weight part on dry basis) of described filling material is ferronickel slag powder 85kg, gypsum 3kg, cement 5kg, lime 5kg, blowing agent 1.5kg.

[0057] The ferronickel slag has a particle size of ≥52.6% of 8mm, and a particle size of ≤20% of 0.13mm. The mass ratio ratio of nickel-iron slag is 0.38.

[0058] Described admixture is sodium carbonate.

[0059] The specific surface area of ​​the nickel-iron slag powder is 400㎡ / kg.

[0060] The lime is quicklime with a digestion temperature of 80° C., a digestion time of 15 minutes, and a mass percentage of CaO of 80%.

[0061] The foaming agent is aluminum powder paste.

[0062] The preparation method of th...

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Abstract

The invention relates to the technical field of building materials and especially relates to a lightweight composite thermal-insulation building block and a preparation method thereof. Through use of a large amount of nickel-iron slag in raw materials, nickel-iron slag resource utilization is greatly promoted, clean high-value comprehensive utilization of melting slag is realized, a treatment cost is saved, the problem of difficult treatment on nickel-iron slag is effectively solved, environmental pollution is reduced and energy saving and environmental protection are realized. Through use of an industrial soda ash additive, nickel-iron slag activity is improved and product performances are improved. Through control of the total use ratio of nickel-iron slag and its powder in the lightweight composite thermal-insulation building block to above 85% and use of the additives, the lightweight composite thermal-insulation building block compressive strength and comprehensive properties are guaranteed, waste resource comprehensive utilization industrial-policy is satisfied, a large amount of nickel-iron slag is effectively consumed, a production cost is reduced, energy consumption is reduced and good economic and social benefits are obtained.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a lightweight composite thermal insulation block and a preparation method thereof. Background technique [0002] Ferronickel slag is a kind of FeO, SiO 2 The granulated industrial waste slag formed after the melt as the main component is water quenched, usually about 9 to 20 tons of nickel-iron slag is discharged for every 1 ton of nickel produced. Ferronickel slag is divided into different types such as dry slag, water slag, high ferronickel slag, and low ferronickel slag. The content of nickel-iron alloy in dry slag is higher, and the content of nickel-iron alloy in water slag is lower. [0003] In recent years, with the increase of nickel production, the discharge and storage of ferronickel slag have also increased. According to statistics, the annual discharge of ferronickel slag in the country has reached tens of millions of tons, and the comprehensive utilizati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B28/14C04B38/02E04C1/41C04B18/14
CPCY02A30/244Y02W30/91
Inventor 宋美王勇刘恒波贺深阳孙夔贾韶辉杨莉
Owner 贵州瑞泰实业有限公司