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Method for preparing wall thermal insulation material from industrial solid waste

A technology for thermal insulation material and industrial solid waste, applied in the field of industrial solid waste resource utilization, can solve the problems of difficult industrial solid waste treatment, and achieve the effect of natural pollution-free performance and simple and easy process.

Pending Publication Date: 2021-03-19
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The treatment of industrial solid waste is imminent, but because the composition of industrial solid waste is affected by its generation route, process conditions and sources, it is difficult to adopt a unified method for treatment, making the treatment of industrial solid waste a difficult issue of national concern

Method used

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  • Method for preparing wall thermal insulation material from industrial solid waste
  • Method for preparing wall thermal insulation material from industrial solid waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: a kind of method utilizing industrial solid waste to prepare wall insulation material, it comprises the following steps,

[0029] Step 1, phosphogypsum, copper slag, and fly ash are dried in a constant temperature drying oven for 12 hours for later use;

[0030] Step 2, grinding, pulverizing and sieving the raw materials to 80 mesh;

[0031] Step 3, add quicklime 5g, add the water of 50mL, make quicklime and water fully react, generate enough Ca(OH) as activator;

[0032] Step 4: Add 200g of phosphogypsum, 10g of copper slag, 50g of fly ash, and mix well;

[0033] Step 5, add 60g of cement again, so that the raw material has gelling properties;

[0034] Step 6. Add 2 g of cement foaming agent, wherein α-olefin sulfonate sodium (AOS): dodecylbenzene sulfonate sodium (LAS): fatty alcohol polyoxyethylene ether sodium sulfate (AES) = 1:1:1 ;

[0035] Step 7. After preparing the slurry, use the semi-dry pressing molding method to pour the mixed raw material...

Embodiment 2

[0039] Embodiment 2: a kind of method utilizing industrial solid waste to prepare wall insulation material, it comprises the following steps,

[0040] Step 1, phosphogypsum, copper slag, and fly ash are dried in a constant temperature drying oven for 12 hours for later use;

[0041] Step 2, grinding, pulverizing and sieving the raw materials to 90 mesh;

[0042] Step 3, add quicklime 7g, add the water of 50mL, make quicklime and water fully react, generate enough Ca(OH) as activator;

[0043] Step 4: Add 200g of phosphogypsum, 15g of copper slag, 50g of fly ash, and mix well;

[0044] Step 5, add 60g of cement again, so that the raw material has gelling properties;

[0045] Step 6. Add 3g of cement foaming agent, wherein α-olefin sulfonate sodium (AOS): dodecylbenzene sulfonate sodium (LAS): fatty alcohol polyoxyethylene ether sodium sulfate (AES) = 1:1:1 ;

[0046] Step 7. After preparing the slurry, use the semi-dry pressing molding method to pour the mixed raw materials...

Embodiment 3

[0050] Embodiment 3: a kind of method utilizing industrial solid waste to prepare wall insulation material, it comprises the following steps,

[0051] Step 1, phosphogypsum, copper slag, and fly ash are dried in a constant temperature drying oven for 12 hours for later use;

[0052] Step 2, grinding, pulverizing and sieving the raw materials to 100 mesh;

[0053] Step 3, add quicklime 12g, add the water of 50mL, make quicklime and water fully react, generate enough Ca(OH) as activator;

[0054] Step 4, add 200g of phosphogypsum, 25g of copper slag, 50g of fly ash, and mix well;

[0055] Step 5, add 60g of cement again, so that the raw material has gelling properties;

[0056] Step 6: Add 4g of cement foaming agent, wherein α-olefin sulfonate sodium (AOS): dodecylbenzene sulfonate sodium (LAS): fatty alcohol polyoxyethylene ether sodium sulfate (AES) = 1:1:1 ;

[0057] Step 7. After preparing the slurry, use the semi-dry pressing molding method to pour the mixed raw materia...

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Abstract

The invention discloses a method for preparing a wall thermal insulation material from industrial solid waste. The method comprises the following steps: respectively drying, grinding and screening copper slag, fly ash and phosphogypsum to 80-100 meshes; proportioning according to a certain proportion and a certain adding sequence; selecting quick lime as an exciting agent, and selecting a mixtureof alpha-olefin sodium sulfonate, sodium dodecyl benzene sulfonate and sodium alcohol ether sulphate as a foaming agent; and sequentially mixing quick lime, a small amount of water, phosphogypsum andauxiliary materials, cement and a cement foaming agent to prepare slurry, molding by casting, naturally standing and drying for 24 hours, and heating and drying in a thermostat for 24 hours to obtainthe building wall thermal insulation material. The method has the advantages that the solid waste phosphogypsum is not subjected to desulfurization treatment, the copper slag is directly utilized, andother auxiliary raw materials are added to react with substances in the copper slag, so that an impurity removal effect is achieved; three anionic surfactants with less research are selected as the cement foaming agent; and the process is simple and easy to implement, and the prepared thermal insulation material is natural, pollution-free and excellent in performance.

Description

technical field [0001] The invention relates to a method for preparing wall insulation materials by using industrial solid waste, in particular to a method for preparing wall insulation materials by using industrial solid wastewater copper quenching slag combined with phosphogypsum, and belongs to the technical field of industrial solid waste resource utilization. Background technique [0002] Industrial solid waste is various waste residues, dust and other wastes discharged into the environment during industrial production, which can be divided into general industrial wastes, such as mining waste rock, mine tailings, blast furnace slag, steel slag, red mud, non-ferrous metal slag, powder Coal ash, cinder, sulfuric acid slag, waste gypsum, etc. and industrial hazardous solid waste. At present, most industrial solid waste is difficult to reuse and can only be stored in the form of accumulation, including phosphogypsum. my country's industrial solid waste production is mainly...

Claims

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Application Information

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IPC IPC(8): C04B38/10C04B28/00C04B18/04C04B18/14C04B18/08B28B1/50B28B1/24
CPCC04B38/106C04B28/00C04B18/0445C04B18/144C04B18/08B28B1/50B28B1/24C04B2201/50C04B2201/32C04B22/064C04B22/002C04B24/16C04B24/20C04B24/166Y02W30/91
Inventor 马丽萍潘青唤殷霞杨静蒙茜芳
Owner KUNMING UNIV OF SCI & TECH
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