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Novel environment-friendly refining agent and preparation method thereof

A refining agent and environmental protection technology, applied in the field of new environmental protection refining agent and its preparation, can solve the problems of non-environmental protection, high energy consumption, etc., achieve good submerged arc insulation effect, reduce furnace lining burning loss, and facilitate cleaning

Pending Publication Date: 2022-06-03
佛山市南海创利有色金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the preparation process, it needs to be heated to a very high temperature to prepare, resulting in high energy consumption, and therefore does not meet the requirements of environmental protection. Therefore, the technical solution of the present application is urgently needed to solve the above problems

Method used

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  • Novel environment-friendly refining agent and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The new environmentally friendly refining agent is composed of aluminum, calcium oxide, aluminum oxide, silicon dioxide and magnesium oxide, and the mass ratio is aluminum: calcium oxide: aluminum oxide: silicon dioxide: magnesium oxide = 23.0: 20.0: 25.0: 2.0 : 2.0.

[0022] A preparation method of a novel environmentally friendly refining agent, using the above-mentioned raw material ratio, comprises the following steps:

[0023] 1) will select aluminum, calcium oxide, aluminum oxide, silicon dioxide and magnesium oxide to dry, pulverize and sieve in the vacuum reactor according to the mass fraction ratio to obtain the mixture;

[0024] 2) the mixture obtained in step 1) is made into granules by pressure forming and granulation, and the particle size of the granules is 5-50mm;

[0025] 3) The granules obtained in step 2) are sealed and stored in a moisture-proof bag.

[0026] Further, in step 1), the drying temperature of the vacuum reactor is 40-60° C., and the moi...

Embodiment 2

[0031] The new environmentally friendly refining agent is composed of aluminum, calcium oxide, aluminum oxide, silicon dioxide and magnesium oxide, and the mass ratio is aluminum: calcium oxide: aluminum oxide: silicon dioxide: magnesium oxide = 25.0: 25.0: 30.0: 3.5 : 5.0.

[0032] A preparation method of a novel environmentally friendly refining agent, using the above-mentioned raw material ratio, comprises the following steps:

[0033] 1) will select aluminum, calcium oxide, aluminum oxide, silicon dioxide and magnesium oxide to dry, pulverize and sieve in the vacuum reactor according to the mass fraction ratio to obtain the mixture;

[0034] 2) the mixture obtained in step 1) is made into granules by pressure forming and granulation, and the particle size of the granules is 5-50mm;

[0035] 3) The granules obtained in step 2) are sealed and stored in a moisture-proof bag.

[0036] Further, in step 1), the drying temperature of the vacuum reactor is 40-60° C., and the moi...

Embodiment 3

[0041] The new environmentally friendly refining agent is composed of aluminum, calcium oxide, aluminum oxide, silicon dioxide and magnesium oxide, and the mass ratio is aluminum: calcium oxide: aluminum oxide: silicon dioxide: magnesium oxide = 27.0: 30.0: 35.0: 5.0 : 8.0.

[0042] A preparation method of a novel environmentally friendly refining agent, using the above-mentioned raw material ratio, comprises the following steps:

[0043] 1) will select aluminum, calcium oxide, aluminum oxide, silicon dioxide and magnesium oxide to dry, pulverize and sieve in the vacuum reactor according to the mass fraction ratio to obtain the mixture;

[0044] 2) the mixture obtained in step 1) is made into granules by pressure forming and granulation, and the particle size of the granules is 5-50mm;

[0045] 3) The granules obtained in step 2) are sealed and stored in a moisture-proof bag.

[0046] Further, in step 1), the drying temperature of the vacuum reactor is 40-60° C., and the moi...

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Abstract

The invention belongs to the technical field of iron and steel smelting, and particularly relates to a novel environment-friendly refining agent which is composed of aluminum, calcium oxide, aluminum oxide, silicon dioxide and magnesium oxide, and the mass part ratio of aluminum to calcium oxide to aluminum oxide to silicon dioxide to magnesium oxide is (23.0-27.0): (20.0-30.0): (25.0-35.0): (2.0-5.0): (2.0-8.0). The preparation method comprises the following steps: 1) selecting aluminum, calcium oxide, aluminum oxide, silicon dioxide and magnesium oxide in parts by mass, drying, crushing and screening in a vacuum reaction kettle to obtain a mixture; (2) preparing the mixture obtained in the step (1) into particles by adopting a pressure forming granulation method, wherein the particle size of the particles is 5-50mm; and (3) sealing and storing the particles obtained in the step (2) by adopting a moisture-proof bag. The refining agent can remove non-metal impurities in steel and iron, so that the steel and iron smelting quality is guaranteed, smelting is not needed in the preparation process, and energy conservation and environmental protection are effectively achieved.

Description

technical field [0001] The invention relates to the technical field of iron and steel smelting, in particular to a novel environment-friendly refining agent and a preparation method thereof. Background technique [0002] Out-of-furnace refining divides the traditional steelmaking into two steps. The first step is called primary refining, and the melting, dephosphorization, decarburization and main alloying of the charge are carried out in an oxidizing atmosphere; the second step is refining, which is performed in a vacuum and inert atmosphere. Or deoxidize, desulfurize, remove inclusions, denature inclusions, fine-tune the composition, and control the temperature of molten steel under a controllable atmosphere. Out-of-furnace refining has become an indispensable link in the modern steel production process, especially the combination of out-of-furnace refining and continuous casting is an important means to ensure smooth continuous casting production, expand continuous castin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/064C21C7/04C21C7/068C21C7/06C21C7/00
CPCC21C7/0645C21C7/04C21C7/068C21C7/06C21C7/00Y02P10/20
Inventor 梁伟豪余革芳
Owner 佛山市南海创利有色金属制品有限公司
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