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Method for producing foamed ceramic building insulation material by using lithium tailings and steel slag tailings

A technology for foaming ceramics and building insulation, which is applied in the production and application of ceramic products and ceramic materials, can solve problems such as land occupation and environmental pollution, and achieve the effects of high production efficiency, simple preparation method and low energy consumption.

Active Publication Date: 2018-11-20
唐山庄信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention uses lithium tailings and steel slag tailings waste, through raw material homogenization treatment, formula design, optimization scheme, high-temperature firing, successfully developed and produced a new type of thermal insulation building material with good fire resistance and excellent physical properties, which not only solves the problem of lithium Tailings and steel slag tailings occupy land and pollute the environment, and provide new insulation materials for the society, turning waste into treasure, turning harm into benefit, and realizing the resource recycling of solid waste

Method used

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  • Method for producing foamed ceramic building insulation material by using lithium tailings and steel slag tailings

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Effect test

Embodiment 1

[0036] A method of utilizing lithium tailings and steel slag tailings to produce foamed ceramic building insulation materials, said method comprising the following steps:

[0037] (1) Homogenization treatment of lithium tailings and steel slag tailings: First, homogenize the lithium tailings and steel slag tailings respectively. After homogenization, the steel slag tailings are crushed and passed through a 20-mesh sieve. After homogenization, the lithium tailings are passed through a 20-mesh sieve. ;

[0038] (2) Ingredients: Put 52kg of lithium tailings, 15kg of steel slag tailings, 23 kg of clay raw materials, 2kg of foam material A, and 42kg of water into a ball mill, mix and grind for 13 hours, and pass through a 60-mesh sieve to remove iron;

[0039] The main chemical composition of foam material A is: SiC: 20%, Fe 2 o 3 : 60%, MnO 2 : 12%;

[0040] (3) Preparation of foamed ceramic building insulation materials: put the ingredients after iron removal into the mud poo...

Embodiment 2

[0043] A method of utilizing lithium tailings and steel slag tailings to produce foamed ceramic building insulation materials, said method comprising the following steps:

[0044] (1) Homogenization treatment of lithium tailings and steel slag tailings: First, homogenize the lithium tailings and steel slag tailings respectively. After homogenization, the steel slag tailings are crushed and passed through a 20-mesh sieve. After homogenization, the lithium tailings are passed through a 20-mesh sieve. ;

[0045] (2) Ingredients: Put 57kg of lithium tailings, 27kg of steel slag tailings, 28kg of clay raw materials, 4kg of foam material A, and 46kg of water into a ball mill, mix and grind for 12 hours, and pass through a 60-mesh sieve to remove iron;

[0046] The main chemical composition of foam material A is: SiC: 45%, Fe 2 o 3 : 45%, MnO 2 :1%;

[0047] (3) Preparation of foamed ceramic building insulation materials: put the ingredients after iron removal into the mud pool, ...

Embodiment 3

[0050] A method of utilizing lithium tailings and steel slag tailings to produce foamed ceramic building insulation materials, said method comprising the following steps:

[0051] (1) Homogenization treatment of lithium tailings and steel slag tailings: First, homogenize the lithium tailings and steel slag tailings respectively. After homogenization, the steel slag tailings are crushed and passed through a 20-mesh sieve. After homogenization, the lithium tailings are passed through a 20-mesh sieve. ;

[0052] (2) Ingredients: Put 55kg of lithium tailings, 20kg of steel slag tailings, 25kg of clay raw materials, 3kg of foam material A, and 45kg of water into a ball mill, mix and grind for 14 hours, and pass through a 60-mesh sieve to remove iron;

[0053] The main chemical composition of foam material A is: SiC: 40%, Fe 2 o 3 : 52%, MnO 2 : 3%;

[0054] (3) Preparation of foamed ceramic building insulation materials: put the ingredients after iron removal into the mud pool,...

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Abstract

The invention discloses a method for producing a foamed ceramic building insulation material by using lithium tailings and steel slag tailings. The method comprises the following steps: preparing thelithium tailings, the steel slag tailings, a clay raw material, a foaming material A and water according to a certain ratio, mixing, grinding, then sieving, removing iron, putting into a mud pit, performing pressure filtration to obtain a mud cake, then refining mud, adding a foaming material B, namley polystyrene particles, in the mud refining process, performing extrusion moulding on a mud section extruded in the mud refining process to obtain a foamed ceramic wet blank, sending the wet blank into a tunnel kiln for drying, and then firing in an energy-saving double-layer tunnel kiln at hightemperature of 1100-1200 DEG C according to a certain firing system to obtain a blank brick, and processing and cutting to obtain a finished product. The preparation method is simple; the prepared foamed ceramic is good in regularity, high in strength, anti-aging, fire-proof, flame-retardant (A1 grade), water-proof, excellent in insulation performance, eco-friendly (non-toxic, harmless and radiation-free) and convenient and efficient to construct, can be used as a building exterior wall insulation material and a chimney flue corrosion preventing material, and can also be used as a fabricated partition wall material and a self-insulating wall material.

Description

technical field [0001] The invention belongs to the technical field of solid waste utilization and preparation of foamed ceramics, and in particular relates to a method for producing foamed ceramic building insulation materials by using lithium tailings and steel slag tailings. Background technique [0002] At present, building insulation materials are generally based on organic materials such as polystyrene, which are light in weight and have good thermal insulation performance. However, the fatal disadvantage is that it is flammable, has poor fireproof performance, and has fire hazards. In recent years, fire accidents have occurred frequently in many places, causing heavy losses to personnel and property. At the same time, the durability of this material is not good, and it needs to be replaced and refurbished after 20 years, and the maintenance cost is high. Therefore, it is extremely urgent to research, develop and produce new fireproof building insulation materials, wh...

Claims

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Application Information

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IPC IPC(8): C04B38/06C04B33/138C04B33/132C04B33/04
CPCC04B33/04C04B33/132C04B33/138C04B38/0635C04B38/067C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/661C04B2235/96C04B2235/9607C04B38/0067Y02P40/60
Inventor 吴冀
Owner 唐山庄信科技有限公司
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