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Method for preparing internal wallboard of building from nickel-iron smelting waste of laterite-nickel ore

A technology of laterite nickel ore and construction, which is applied in the field of preparing inner wall panels of buildings, can solve the problems of insufficient strength and gel properties, single product, backlog of waste residue, etc., and achieves low requirements for molding equipment and good foaming effect. , the effect of saving energy

Inactive Publication Date: 2018-04-03
SHANDONG XINHAI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At the end of the last century, Japan, Russia and other countries have begun to recycle waste residues, mainly in cement raw materials, concrete raw materials, and glass; domestic research started relatively late, and related research has also begun in recent years, mostly focusing on building materials On the one hand; the applicant prepared mineral wool fibers from waste residues in the early stage, and achieved certain results, but the product is relatively single, which may easily cause a backlog of waste residues
Due to the characteristics of the chemical composition of the waste slag itself, high magnesium and low calcium lead to low activity, poor stability, strength and gel properties that cannot meet the requirements of building materials. How to improve it, increase the amount of waste slag added, and fully realize waste utilization is a technical problem we need to solve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing a building interior wallboard by using the nickel-iron smelting waste residue of laterite nickel ore, comprising the steps of:

[0021] Step 1) Crushing and ball milling the ferronickel smelting slag of laterite nickel ore:

[0022] (1) Preparation of waste slag fine powder: crush laterite nickel ore ferronickel smelting waste slag through a crusher, then send it to a ball mill, and grind it to a particle size of 400 mesh waste slag fine powder, in which additives are added to the ball mill in an amount of laterite nickel ore One-thousandth of the mass of ferronickel smelting waste residue; the additive is mixed with tricalcium silicate: soybean oil according to the mass ratio of 1:2;

[0023] (2) Preparation of waste slag coarse powder: crush the laterite nickel ore ferronickel smelting waste slag through a crusher, then send it to a ball mill, and grind it to a particle size of 50 mesh waste slag coarse powder, wherein additives are added to the...

Embodiment 2

[0030] A method for preparing a building interior wallboard by using the nickel-iron smelting waste residue of laterite nickel ore, comprising the steps of:

[0031] Step 1) Crushing and ball milling the laterite nickel ore ferronickel smelting waste residue:

[0032] (1) Preparation of waste slag fine powder: crush laterite nickel ore ferronickel smelting waste slag through a crusher, then send it to a ball mill, and grind it to a particle size of 400 mesh waste slag fine powder, in which additives are added to the ball mill in an amount of laterite nickel ore One-thousandth of the mass of ferronickel smelting waste residue; the additive is mixed with tricalcium silicate: soybean oil according to the mass ratio of 1:2;

[0033] (2) Preparation of waste slag coarse powder: crush the laterite nickel ore ferronickel smelting waste slag through a crusher, then send it to a ball mill, and grind it to a particle size of 50 mesh waste slag coarse powder, wherein additives are added ...

Embodiment 3

[0040] The present invention utilizes the performance test of the wall panel prepared by smelting waste slag:

[0041] Example 1 group; Example 2 group; Control group 1: Same as Example 1, the difference is that the waste residue fine powder is replaced with coarse powder; Control group 2: Same as Example 1, without adding mineral powder.

[0042] Perform performance parameter tests on the above-mentioned groups, taking a plate with a thickness of 2 cm as an example: see Table 1 for the specific results.

[0043] Table 1

[0044] Parameter index

[0045] Conclusion: The performance of the interior wall panel of the present invention is better in all aspects, and realizes the recycling of smelting waste residue; through the above comparison test, it is found that the added content of large particle size waste residue powder will affect the performance of the panel, and the mineral powder can improve the thermal insulation performance.

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Abstract

The invention belongs to the field of building materials, and discloses a method for preparing an internal wallboard of a building from nickel-iron smelting waste of laterite-nickel ore. The method comprises following steps: step 1), crushing and ball-milling treatment of the nickel-iron smelting waste of the laterite-nickel ore; step 2), treatment of agricultural waste; step 3), preparation of afoaming agent; step 4), preparation of mineral powder; step 5), preparation of the internal wallboard. The preparation technology of the internal wallboard is simple and practicable, a large amount ofwaste is utilized, and a product prepared with the method has good mechanical property, thermal-insulation property, flame retardance and moisture resistance and is environmentally friendly and pollution-free.

Description

technical field [0001] The invention belongs to the field of building materials, and relates to a method for preparing building interior wallboards by utilizing waste slag from ferronickel smelting of laterite nickel ore. Background technique [0002] The wall panel is a building structure in which the wall and floor slabs form a load-bearing system. In recent years, with the country's emphasis on building energy conservation and environmental protection, people have higher and higher requirements for wall panels, which must be beautiful and practical, as well as environmentally friendly and pollution-free. Wall panels are classified into two categories: interior wall panels and exterior wall panels. The interior wall panels are non-load-bearing wall panels, and the interior wall panels should have better compression, fire and moisture-proof functions. At present, there are mainly two types of products. The first product is organic foam board. Although this type of product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/14C04B18/24C04B20/02
CPCC04B18/144C04B18/248C04B20/026C04B28/14C04B2201/20C04B2201/32C04B2201/50C04B14/18C04B14/08C04B22/122C04B22/064Y02W30/91
Inventor 刘洪松郑世飞
Owner SHANDONG XINHAI TECH