Preparation method of environment-friendly high-temperature initiated resin for blast furnaces

An environment-friendly, high-temperature technology is applied in the field of preparation of environment-friendly, high-temperature-induced resin for blast furnaces, which can solve the problems that have not been fundamentally solved, the problems of environmental protection and environmental pollution of taphole mud, and can improve blast furnace performance. Utilization coefficient, eliminating pollution and harm to human life and health, high-intensity effect

Active Publication Date: 2012-04-18
应城市力发化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it faces serious environmental pollution problems: at present, coal tar, anthracene oil, and washing oil are mainly used as binders in China, but the tar material components are polycyclic aromatic hydrocarbons, anthracene, naphthalene, and nitrogen, oxygen, and sulfur compounds. Heterocycles, etc., whose main component, polycyclic aromatic hydrocarbons, benzopyrene, has been identified as a strong carcinogen
[0004] Chinese patent CN101244943A "Binder for large-scale blast furnace clay and blast furnace clay" adopts a certain proportion of tar, resin and asphalt as the binder of clay, which reduces the smell of clay to a certain extent, but still uses tar, no Fundamentally solve the environmental protection problem of gun clay
[0005] The environmental protection of gun clay is mainly reflected in the choice of binder. The basic starting point of the above methods is to start from the process, but not to solve the problem fundamentally.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh according to the molar ratio of paraformaldehyde: diphenylmethanediamine: bisphenol A = 1.8: 0.78: 1, and set aside. Put paraformaldehyde and diphenylmethanediamine into the reaction kettle first, start stirring, and raise the temperature to 50°C within 30 minutes to react for 40 minutes. Add bisphenol A again, the heating time from 50°C to 85°C is 90 minutes, and the temperature rises to 85°C for 140 minutes to condense. Under vacuum, dehydrate under reduced pressure; after dehydration, add ethyl linoleate, the amount added is 50% of the total weight of the system, and when the viscosity is adjusted to 500mPa.s / 25°C, add sodium borate, the amount added is the total weight of the system 0.75%, stirring evenly, cooling and discharging, to obtain the environmental-friendly high-temperature initiation resin for the blast furnace.

[0025] The resulting environmentally friendly high-temperature initiator resin for blast furnaces meets the following indicators:

[00...

Embodiment 2

[0032] Weigh according to the molar ratio of paraformaldehyde: diphenylmethanediamine: p-tertoctylphenol = 1.8: 0.78: 1, and set aside. Put paraformaldehyde and diphenylmethanediamine into the reaction kettle first, start stirring, and raise the temperature to 50°C within 30 minutes to react for 60 minutes. Add p-tert-octylphenol again, the heating time from 50°C to 85°C is 100min, and the temperature rises to 85°C for 150min to condense. Under vacuum, dehydrate under reduced pressure; after dehydration, add ethyl linoleate, the amount added is 52% of the total weight of the system, and when the viscosity is adjusted to 700mPa.s / 25°C, add silicon dioxide, the amount added is the total weight of the system 0.9% by weight, stirred evenly, cooled and discharged to obtain the environmental-friendly high-temperature initiation resin for blast furnaces.

[0033] The resulting environmentally friendly high-temperature initiator resin for blast furnaces meets the following indicators...

Embodiment 3

[0040] Weigh according to the molar ratio of paraformaldehyde: diphenylmethanediamine: hydroquinone = 1.8: 0.78: 1, and set aside. Put paraformaldehyde and diphenylmethanediamine into the reaction kettle first, start stirring, and raise the temperature to 50°C within 30 minutes to react for 90 minutes. Add hydroquinone again, the heating time from 50°C to 85°C is 120min, and the temperature rises to 85°C for 160min to condense. Under vacuum, dehydrate under reduced pressure; after dehydration, add ethyl linoleate, the amount added is 55% of the total weight of the system, and when the viscosity is adjusted to 1000mPa.s / 25°C, add silicon carbide, the amount added is the total weight of the system 1%, stirring evenly, cooling and discharging, to obtain the environmental-friendly high-temperature initiation resin for the blast furnace.

[0041] The resulting environmentally friendly high-temperature initiator resin for blast furnaces meets the following indicators:

[0042] App...

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PUM

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Abstract

The invention discloses a preparation method of an environment-friendly high-temperature initiated resin for blast furnaces, which comprises the following steps: adding polyformaldehyde and diphenyl methane diamine to react, adding phenol, heating to carry out condensation, dehydrating under reduced pressure, and adding an ester solvent; and when the viscosity is adjusted to 500-1000 mPa.s/25 DEGC, adding inorganic micropowder to obtain the environment-friendly high-temperature initiated resin for blast furnaces. The preparation technique disclosed by the invention is simple. When the environment-friendly high-temperature initiated resin is used for preparing a stemming material, the binder consumption is obviously lowered, the utilization coefficient of a blast furnace is effectively enhanced, the tap hole mixture consumption per ton of iron is lowered, and no polluting fume is generated. The stemming prepared from the resin has the characteristics of appropriate setting rate, high quality stability, high strength and excellent slag erosion resistance.

Description

technical field [0001] The invention relates to a preparation method of a binder for blast furnace iron hole clay, in particular to a preparation method of an environment-friendly high-temperature initiation resin for a blast furnace. Background technique [0002] Gun mud is an amorphous mixture specially used for the blast furnace taphole. It is made of coke powder, clay, silicon carbide, asphalt powder, etc. as the main raw materials. It plays an important "switch" role in the process. However, it faces serious environmental pollution problems: at present, coal tar, anthracene oil, and washing oil are mainly used as binders in China, but the tar material components are polycyclic aromatic hydrocarbons, anthracene, naphthalene, and nitrogen, oxygen, and sulfur compounds. Heterocycles, etc., and its main component, polycyclic aromatic hydrocarbons, benzopyrene, have been identified as strong carcinogens. Under heating conditions, this type of binder only volatilizes rather...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/04C08K3/38C08K3/36C08K3/34C08K3/28C08K3/30C08G73/06C04B35/66
Inventor 李末银
Owner 应城市力发化工有限责任公司
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