Method for producing passive metal particle, metal powder or passive lime

A metal powder and passivation metal technology, which is applied in the field of flux materials for iron and steel smelting, can solve problems such as singleness and environmental protection, and achieve good dispersion, meet smelting requirements, and excellent passivation effects

Inactive Publication Date: 2010-05-19
鞍山市和丰耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, a single passivator or dispersant is often used, and it is difficult to achieve good passivation effect and dispersion flow effect, and some additives also affect environmental protection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1 (passivation metal magnesium powder)

[0014] First, make high-efficiency composite additives. It is made of the following ingredients in parts by weight: 32 parts of sodium polymethacrylate (JSTAMOL-960), 20 parts of propylene glycol phenyl ether acetate (JS-PPA), 48 parts of silicone oil, sodium polymethacrylate, propylene glycol phenyl ether Acetate and silicone oil are stirred according to the stated weight ratio, mixed evenly, and packed in a special container that can spray the liquid in mist form.

[0015] Secondly, the metal magnesium particles that need to be passivated are put into the special passivation equipment.

[0016] Finally, according to the weight ratio (magnesium particles: high-efficiency composite additive = 1000: 0.5) to the surface of the rapidly rotating metal magnesium particles in the passivation equipment, spray mist-like high-efficiency composite additives, and then check the packaging to produce environmentally friendly Prod...

Embodiment 2

[0017] Embodiment 2 (passivated lime)

[0018] First, make high-efficiency composite additives. It is made of the following ingredients in proportion by weight: 20 parts of sodium polymethacrylate (JSTAMOL-960), 32 parts of propylene glycol phenyl ether acetate (JS-PPA), 48 parts of silicone oil, and sodium polymethacrylate, propylene glycol phenyl ether Acetate and silicone oil are accurately weighed, stirred and mixed evenly according to the stated weight ratio, and packed in a special container that can spray the liquid in mist form;

[0019] Secondly, put the lime that needs to be passivated into the special passivation equipment.

[0020] Finally, according to the ratio (lime: high-efficiency composite additive = 1000: 1) to the surface of the lime that is rapidly rotating in the passivation equipment, spray the spray-like high-efficiency composite additive, and then check the packaging to produce environmentally friendly production of high-quality passivated lime .

Embodiment 3

[0021] Embodiment 3 (passivated magnesium powder)

[0022] First, make high-efficiency composite additives. It is made of the following ingredients in proportion by weight: 25 parts of sodium polymethacrylate (JSTAMOL-960), 25 parts of propylene glycol phenyl ether acetate (JS-PPA), 50 parts of silicone oil, and sodium polymethacrylate, propylene glycol phenyl ether Acetate and silicone oil are accurately weighed, stirred and mixed evenly according to the stated weight ratio, and packed in a special container that can spray the liquid in mist form;

[0023] Secondly, put the magnesium powder that needs to be passivated into the special passivation equipment.

[0024] Finally, according to the ratio (magnesium powder: high-efficiency composite additive = 1000: 1.5) to the quickly rotating lime surface in the passivation equipment, spray mist-like high-efficiency composite additives, and then inspect the packaging to produce environmentally friendly production of high-quality p...

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PUM

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Abstract

The invention relates to a method for producing passive metal particle, metal powder or passive lime. The passive metal particle, the metal powder or the passive lime consists of the following raw materials in part by weight: 1,000 parts of metal particle (metal powder or lime), and 0.5 to 2 parts of efficient compound additives. The efficient compound additives are prepared from three types of organic solutions in proportion and are sprayed in the form of mist on the surface of the metal particle (the metal powder or the lime) rotating quickly in a passivation device by using a special container so as to produce environment-friendly high-quality passive metal particle (or powder) or passive lime. The method has the following advantages: 1) the passivated substances in the method not only have good passivation effect so that the materials can be effectively isolated from the outside for a long time, but also make the materials obtain good dispersity and fluidity to meet the requirements on smelting, and has strong market prospect and competitive strength; and 2) the efficient compound additives are environment-friendly non-toxic harmless substances.

Description

technical field [0001] The invention relates to the field of flux materials for iron and steel smelting, in particular to a method for producing environment-friendly high-quality passivation metal particles (or powder) and passivation lime. Background technique [0002] The hot metal pretreatment desulfurization process is a mature technology widely used in the iron and steel smelting process, and the powder spraying method is the most commonly used method. Passivated metal magnesium powder and passivated lime powder are the two most commonly used powders for desulfurization at present. Whether their passivation effect is good or bad directly affects the storage and desulfurization effect of the desulfurization powder, while excellent dispersibility and fluidity are crucial factors to ensure the smooth completion of the injection operation. [0003] At present, a single passivator or dispersant is often used, and it is difficult to achieve good passivation effect and disper...

Claims

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Application Information

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IPC IPC(8): C21C1/02C21C7/064
Inventor 李涛孙逊
Owner 鞍山市和丰耐火材料有限公司
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