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Aluminum ash pellet binder and preparation method thereof

A technology for aluminum ash pellets and a binder is applied in the field of aluminum ash pellet binder and its preparation, which can solve the problems of complex aluminum ash process, high energy consumption, unfriendly environment, etc. The effect of high product quality and lower production costs

Active Publication Date: 2019-06-25
XINYANG CITY SHANGTIANTI YIHE MINERAL PROD RESOURCES DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pellet binder with aluminum ash as the main raw material and its preparation method, which not only solves the problems of complex aluminum ash treatment process, high energy consumption and unfriendly environment in the prior art, but also Reduced production costs for preparing pellet binders

Method used

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  • Aluminum ash pellet binder and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0021] Weigh 7 t of aluminum ash, 1.5 t of bentonite, 0.237 t of sodium carbonate, 0.0475 t of calcined serpentine, 0.0475 t of fluorite powder and 0.19 t of sulfonated lignite and put them into a mixer to mix evenly, then transfer the mixture to a vacuum brick press, and add 1.4 t water, the extrusion pressure is 3Mpa, extruded twice, then stacked and aged for 15 days under natural conditions, dried to a moisture content of 12%, and then the dried mixture was thrown into a Raymond machine for grinding to a particle size of 200 mesh For fine powder, add 0.0475t of glass wool to the finished product conveying duct of the Raymond machine to obtain the finished binder.

[0022] The aluminum ash pellet binder prepared in this example was mixed with iron ore powder at a ratio of 1%, and then mixed to form pellets. The ball forming rate of green balls is 65%, the drop strength of green balls is 4.3 times / 0.5m, and the compressive strength of green balls is 12.2N / piece; under the con...

Embodiment 2

[0024] Weigh 6 t of aluminum ash, 2 t of bentonite, 0.32 t of sodium carbonate, 0.12 t of calcined serpentine, 0.09 t of fluorite powder and 0.32 t of sulfonated lignite and put them into a mixer to mix evenly, then transfer the mixture to a vacuum brick press, and add 2 t of water , the extrusion pressure is 5Mpa, extruded 3 times, then stacked and aged for 7 days under natural conditions, dried to a moisture content of 10%, and then the dried mixture was thrown into a Raymond machine to be ground into a fine powder with a particle size of 200 mesh , add 0.16t basalt fiber to the conveying duct of the finished product of the Raymond machine to obtain the finished product of the binder.

[0025] The aluminum ash pellet binder prepared in this example was mixed with iron ore powder at a ratio of 1%, and then mixed to form pellets. The ball forming rate of green balls is 85%, the drop strength of green balls is 7.2 times / 0.5m, and the compressive strength of green balls is 16.2N...

Embodiment 3

[0027] Weigh 10t of aluminum ash, 2t of bentonite, 0.36t of sodium carbonate, 0.12t of calcined serpentine, 0.12t of fluorite powder and 0.48t of sulfonated lignite and put them into a mixer to mix evenly, then transfer the mixture to a vacuum brick press, and add 2.4t water, the extrusion pressure is 7Mpa, extruded twice, then stacked and aged for 3 days under natural conditions, dried to a moisture content of 11%, and then the dried mixture was thrown into a Raymond machine to be ground into a fine particle size of 200 mesh Powder, add 0.12t dolomite fiber in the finished product delivery duct of the Raymond machine to get the finished binder.

[0028] The aluminum ash pellet binder prepared in this example was mixed with iron ore powder at a ratio of 1%, and then mixed to form pellets. The ball forming rate of green balls is 81%, the drop strength of green balls is 6.5 times / 0.5m, and the compressive strength of green balls is 13.2N / piece; under the conditions of drying tem...

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Abstract

The invention belongs to the field of metallurgical pellet binders and particularly relates to an aluminum ash pellet binder and a preparation method thereof. The binder is formed by processing the following raw materials including, by weight, 60-80% of aluminum ash, 15-30% of bentonite, 2.5-4% of sodium carbonate, 0.5-1.5% of calcined ophiolite, 0.5-1% of fluorite powder, 2-5% of sulfonated lignite and 0.5-2% of fibers. The preparation method comprises the steps of mixing; pressure-formation of bricks; ageing; drying; grinding; and finished product packaging. According to the aluminum ash pellet binder and the preparation method thereof, the pellet binder is prepared by means of aluminum ash, the process is simple, environment friendliness and safety are achieved, goods are saved, the product quality is good, and the economic benefit and environment-friendly benefit are quite high.

Description

technical field [0001] The invention belongs to the field of metallurgical pellet binders, in particular to an aluminum ash pellet binder and a preparation method thereof. Background technique [0002] In recent years, my country's aluminum industry has developed rapidly, and its output has continued to increase. It has become a major aluminum producer in the world. However, a large amount of seriously polluting industrial waste will be produced during aluminum smelting. Aluminum ash is an important solid waste in the aluminum industry. It mainly comes from infusible inclusions, oxides, additives, and reaction products produced by physical and chemical reactions with additives floating on the surface of aluminum melt during the process of smelting aluminum and aluminum alloy production. Wait. The newly released aluminum ash and aluminum slag contain a large amount of metallic aluminum, of which only part of the aluminum can be recycled, and the remaining waste aluminum ash ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/243C22B21/00
Inventor 余雪华曹庆坤
Owner XINYANG CITY SHANGTIANTI YIHE MINERAL PROD RESOURCES DEV
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