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An environmentally friendly fireproof coating prepared from solid waste from the iron and steel industry

A fire retardant coating and environmental protection technology, applied in fire retardant coatings, cement coatings, coatings, etc., can solve the problems of difficult resource utilization, insufficient comprehensive utilization rate, poor stability, etc., to achieve easy maintenance and reorganization, fire prevention Good effect, the effect of preventing casualties and economic losses

Active Publication Date: 2021-06-08
山东亘石新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, steel slag is the most difficult solid waste in steel slag due to its poor stability, poor grindability, and low activity, and its comprehensive utilization rate is less than 30%.
However, there are no reports on fire retardant coatings prepared by using solid waste from the iron and steel industry as the main raw material.

Method used

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  • An environmentally friendly fireproof coating prepared from solid waste from the iron and steel industry
  • An environmentally friendly fireproof coating prepared from solid waste from the iron and steel industry
  • An environmentally friendly fireproof coating prepared from solid waste from the iron and steel industry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1: Preparation of environmentally friendly fire paint

[0046] 1. Raw material composition:

[0047] Aluminate cement (525), 8 sericite powder, 7 modified silicate powder, 15 parts of steel slag powder (300 mesh), 5 parts of water slag powder (400 mesh), fly ash bead (30 mesh) 32 copies, 3 parts of hydrophobic silica.

[0048] 2. Preparation method:

[0049] The above-mentioned raw materials is thoroughly mixed, stirred well, that is, prepare an environmentally friendly fire-resistant coating.

[0050] 3. How to use:

[0051] The prepared environmentally friendly fire-resistant coating and water is mixed with a weight ratio of 1: (0.4-0.5) to obtain a slurry; the slurry is applied to the surface of the substrate and maintains 7-10 days.

Embodiment 2

[0052] Example 2: Preparation of environmentally friendly fire paints

[0053] 1. Raw material composition:

[0054] 32 aluminate cement (525), 5 sericite powder, 5 copies of sodium silicate powder, 10 parts of steel slag powder (400 mesh), water slag powder (500 mesh), fly ash bouncing (100 mesh) 35 parts, 3 parts of hydrophobic silica.

[0055] 2. Preparation method:

[0056] The above-mentioned raw materials is thoroughly mixed, stirred well, that is, prepare an environmentally friendly fire-resistant coating.

[0057] 3. How to use:

[0058] The prepared environmentally friendly fire-resistant coating and water is mixed with a weight ratio of 1: (0.4-0.5) to obtain a slurry; the slurry is applied to the surface of the substrate and maintains 7-10 days.

Embodiment 3

[0059] Example 3: Preparation of environmentally friendly fire paints

[0060] 1. Raw material composition:

[0061] 33 of aluminate cement (525), 6 sericite powder, 7 copies of sodium silicate powder, 12 parts of steel slag powder (300 mesh), 8 parts of water slag powder (400 mesh), fly ash poured (50 mesh) 30 parts, 4 parts of hydrophobic silica.

[0062] 2. Preparation method:

[0063] The above-mentioned raw materials is thoroughly mixed, stirred well, that is, prepare an environmentally friendly fire-resistant coating.

[0064] 3. How to use:

[0065] The prepared environmentally friendly fire-resistant coating and water is mixed with a weight ratio of 1: (0.4-0.5) to obtain a slurry; the slurry is applied to the surface of the substrate and maintains 7-10 days.

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Abstract

The invention discloses an environment-friendly fireproof coating prepared from iron and steel industry solid waste as raw materials, which is prepared from the following raw materials in parts by weight: 30-35 parts of cement, 6-10 parts of mica powder, and 5-5 parts of modified sodium silicate powder 7 parts, 12-18 parts of steel slag powder, 4-8 parts of water slag powder, 25-35 parts of fly ash bleaching beads, 2-4 parts of hydrophobic silicon dioxide. The main raw material of the present invention comes from the solid waste produced by the iron and steel industry, including steel slag, water slag and fly ash, which account for more than 50% of the raw materials for the preparation of environmentally friendly fireproof coatings, realizing the resource utilization of bulk solid waste of iron and steel, In line with the principles of environmental protection and sustainable development. The environmentally friendly fireproof coating of the present invention is a new type of non-expanding fireproof coating, which is light in weight, low in cost, simple in production process, convenient in construction, environmentally safe, good in fireproof effect, and extremely cost-effective. It can be used as an ultra-thin and thin fireproof coating Coatings are widely used as fire protection materials in different fields such as steel structures and concrete structures.

Description

Technical field [0001] The present invention relates to the technical field of industrial waste treatment and environmentally friendly coating, and more particularly to an environmentally friendly fire-resistant coating prepared by steel industrial solid waste as a raw material. Background technique [0002] The steel industry is the pillar industry of the Chinese national economy, playing an irreplaceable role in the process of industrial modernization. The steel industry belongs to energy, resource-intensive industries, and solid waste produced by about 13% of the total industrial solid waste. The steel industry has the main waste of solid waste, with water residue, steel slag, fly ash, desulfurization plaster, iron-containing dust, etc. In 2017, the production of cast iron and crude steel in 2017 was growing. According to the estimation, in 2017, the National Galast was 296.2277 million tons, steel slag 166.456 million tons, iron-coated golden slag, 9866,100 tons, iron and mud...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/06C09D5/18C09D7/61
CPCC09D1/06C09D5/18C09D7/61C09D7/70
Inventor 庄明星
Owner 山东亘石新材料科技有限公司
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