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Electrolytic manganese residue innocent treatment method and device thereof

A technology of harmless treatment and electrolysis of manganese slag, applied in the direction of solid waste removal, etc., can solve the problems of high investment and operation costs, environmental pollution of electrolytic manganese slag, etc., to reduce equipment investment costs and operating costs, save energy and reduce consumption The effect, the effect of good application prospects

Inactive Publication Date: 2019-05-31
四川恒泰环境技术有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The invention purpose of the present invention is: aiming at the large amount of hoarding of existing electrolytic manganese slag in my country, the safe and effective treatment and disposal of electrolytic manganese slag has become a bottleneck problem restricting the sustainable development of the electrolytic manganese industry, while the existing electrolytic manganese slag treatment method , there are problems such as high investment and operation costs of the device, and there is an urgent need for a high-efficiency, low-consumption electrolytic manganese slag harmless treatment method and its device
The invention can effectively realize the harmless treatment of electrolytic manganese slag, effectively solve the problem of environmental pollution caused by electrolytic manganese slag, and realize the harmless treatment of electrolytic manganese slag

Method used

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  • Electrolytic manganese residue innocent treatment method and device thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] As shown in the figure, the device in this implementation includes a slag washing tank, a primary filter press, a reaction tank, a secondary filter press, a stripping device, an ammonia absorption tower, a circulation pump, an evaporation concentrator, and a crystallization dryer. Among them, the slag washing pool, the first-stage filter press, the reaction pool, the second-stage filter press, and the blow-off device are connected in sequence through pipelines. The exhaust port at the upper end of the stripping device is connected to the gas inlet at the lower end of the ammonia absorption tower through a pipeline, and the stripping device is connected to the slag washing pool through a pipeline, and the filtrate after deammonization in the stripping device can be returned to the slag washing pool for reuse. At the same time, the ammonia absorption tower, evaporative concentrator, and crystallization drier are connected through pipelines, so that the ammonium sulfate sol...

Embodiment 2

[0050] The device used in this embodiment is the same as in Embodiment 1.

[0051] The manganese slag treatment capacity of this embodiment is 150t / h, and the liquid-solid ratio of 3:1 is used for water washing; while washing, stirring is carried out, and the reaction time is 2 hours; after the water washing is completed, the first mixture is obtained. Before water washing, the ammonia nitrogen content in the slag was 0.62wt% (equivalent ammonia content was 0.75wt%), and the soluble manganese content was 1.17wt%. After washing with water, the ammonia nitrogen content in the harmless manganese slag is 0.03wt%, and the soluble manganese content is 0.07wt%. Before washing, the ammonia content in the circulating water was 1021 mg / L, and after washing, the ammonia content was 2262 mg / L.

[0052] The obtained first mixture (ie washed slag and water) is separated through a primary filter press (ie plate and frame filter press) to obtain harmless manganese slag and primary filtrate. ...

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Abstract

The invention discloses an electrolytic manganese residue innocent treatment method and a device thereof, belongs to the field of common industrial solid waste treatment, and aims to solve the problems that in an existing electrolytic manganese residue innocent treatment method, soluble manganese cannot be effectively utilized and manganese residue innocent treatment is in sore need of being realized. The electrolytic manganese residue innocent treatment method can be adopted to effectively realize innocent treatment on electrolytic manganese residues, and effectively solves the problem that electrolytic manganese residues are greatly accumulated and pollute the environment. The electrolytic manganese residue innocent treatment method is adopted to treat electrolytic manganese residues, sothat equipment investment cost is relatively small, energy consumption is relatively low, and treatment cost and operation cost can be effectively reduced. Meanwhile, the electrolytic manganese residue innocent treatment method is short in process flow, is stable in operation, is high in reliability, can meet industrial and large-scale production and application needs, has a relatively high application value and a relatively good application prospect in treating electrolytic manganese residues, and is worthy of being popularized and applied on a large scale. Besides, products treated by the electrolytic manganese residue innocent treatment method are stored and transported conveniently, use is wide, dosage is great, and economic values are relatively high.

Description

technical field [0001] The invention relates to the treatment of electrolytic manganese slag, which belongs to the field of general industrial solid waste treatment, and specifically relates to a harmless treatment method and device for electrolytic manganese slag. The invention can realize the harmless treatment of the electrolytic manganese slag through the optimization of the treatment process of the electrolytic manganese slag, can greatly reduce the treatment cost, and is beneficial to the application and popularization of industrialization. Background technique [0002] As an important metallurgical, aerospace and chemical raw material, manganese metal is an important basic material in the national economy and one of the country's important strategic resources. In recent years, with the rapid economic development, my country has become the world's largest producer, consumer and exporter of electrolytic manganese metal. As a typical hydrometallurgical industry, electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00
Inventor 黄文凤张亚明郑博
Owner 四川恒泰环境技术有限责任公司
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