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Innocent treatment method of electrolytic manganese slag

A technology of harmless treatment and electrolysis of manganese slag, which is applied in the field of resource recycling, can solve the problems of few practical applications in enterprises and society, limited market capacity, and difficulty in popularization and application, and achieve automatic catalytic oxidation, employment promotion, and pharmaceutical source wide range of effects

Inactive Publication Date: 2012-11-28
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wang Huaian once studied the method of using electrolytic manganese slag to produce full-price fertilizer ("Electro-manganese slag land treatment full-price substrate total control method"), but due to the limited market capacity and improper application, it is easy to cause soil compaction and other reasons. It is rarely applied in society and society, and it is difficult to popularize and apply

Method used

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  • Innocent treatment method of electrolytic manganese slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Accurately weigh 80 parts by weight of manganese slag through the metering equipment and transport it to the manganese slag crusher for crushing; then transport it to the mixer through the feeding device.

[0029] (2) While stirring, add 7 parts by weight of quicklime powder to the mixer, add 8.7 parts by weight of water at a temperature of 20°C, and 1.3 parts by weight of sodium silicate, and stir in the mixer for 3 minutes before unloading ;

[0030] (3) Transfer the electrolytic manganese slag mixture through a stirring process to another mixer, add 1 weight part of sodium lignosulfonate and 2 weight parts of ferric chloride therein, carry out secondary stirring and mix uniformly;

[0031] (4) Transport the mixture processed by the second stirring to the third mixer, fully stir evenly, and make the reaction fully.

[0032] (5) After three times of stirring, the mixed material is unloaded into a rotary dryer for drying, and the moisture content of the mixed mater...

Embodiment 2

[0036](1) Accurately weigh 77.4 parts by weight of manganese slag through the metering equipment and transport it to the manganese slag crusher for crushing; then transport it to the mixer through the feeding device.

[0037] (2) While stirring, add 9.6 parts by weight of quicklime powder to the mixer, add 8.7 parts by weight of water at a temperature of 20°C, and 1.3 parts by weight of sodium silicate, stir in the mixer for 3 minutes and then unload ;

[0038] (3) Transfer the mixed material through a stirring process to another mixer, add 1 weight part of sodium lignosulfonate and 2 weight parts of ferric chloride therein, carry out secondary stirring and mix uniformly;

[0039] (4) Transport the mixture processed by the second stirring to the third mixer, fully stir evenly, and make the reaction fully.

[0040] (5) Transfer the unloading of the mixed material after three stirring treatments to a rotary dryer for drying, and control the moisture content of the mixed materia...

Embodiment 3

[0044] (1) Accurately weigh 74 parts by weight of manganese slag through the metering equipment and transport it to the manganese slag crusher for crushing; then transport it to the mixer through the feeding device.

[0045] (2) In the stirring state, add 13 parts by weight of quicklime powder to the mixer, add 8.7 parts by weight of water at a temperature of 20 ° C, and 1.3 parts by weight of sodium silicate, stir in the mixer for 3 minutes and then unload ;

[0046] (3) Transfer the mixture after the primary stirring process to another mixer, add 1 weight part of sodium lignosulfonate and 2 weight parts of ferric chloride therein, carry out secondary stirring and mix uniformly;

[0047] (4) Transport the mixture processed by the second stirring to the third mixer, fully stir evenly, and make the reaction fully.

[0048] (5) Transfer the unloading of the mixed material after three stirring treatments to a rotary dryer for drying, and control the moisture content of the mixed...

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Abstract

The invention discloses an innocent treatment method of electrolytic manganese slag. The method comprises the following steps of: (1) weighing manganese slag accurately with metering equipment and crushing the manganese slag; (2) adding the crushed manganese slag into a blender; adding calcium oxide powder and water into the manganese slag, adding a certain amount of silicate additives into the mixture, stirring the mixture to form a uniform mixed material, and recovering ammonia gas; (3) after unloading the mixed material, transferring the mixed material into another blender, adding a certain amount of water soluble resin sulfosalt additives and ferric chloride, stirring again and recovering the ammonia gas; and (4) after stirring and unloading the material, transferring the material into a third blender, fully stirring, recovering the ammonia gas, drying the material in a turnover dryer, controlling the water content of the mixed material, and performing landfill treatment after drying. The method has a wide raw material source, an excellent treatment effect, a simple technical technology, high product strength and high durability; an environmental potential hazard caused in a manganese slag stacking process is eliminated; and the investment cost of an enterprise is reduced.

Description

technical field [0001] The invention relates to a harmless treatment method for electrolytic manganese slag, which belongs to the field of resource recycling. Background technique [0002] Due to the rapid development of my country's social economy, the demand for electrolytic manganese is increasing, and the electrolytic manganese industry in my country has also developed rapidly. At present, electrolytic manganese is the second largest industry of ferrous metallurgy in my country, and my country has become the largest producer, consumer and exporter of electrolytic manganese in the world. However, the electrolytic manganese industry is a typical "three highs and one low" industry of "high investment, high consumption, high pollution, and low benefit". While it is developing rapidly, the problems of resource shortage and environmental pollution are becoming increasingly prominent. Among them, manganese slag Pollution is particularly prominent. [0003] Electrolytic mangan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00
Inventor 周长波段宁杜兵王积伟裴倩倩杨洪旭
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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