Method for producing ecologically active slag by treating electrolytic manganese slag with tunnel kiln equipment

A technology of electrolytic manganese slag and tunnel kiln, which is applied in the direction of cement production, etc., can solve the problems of small consumption of electrolytic manganese slag, unsatisfactory actual comprehensive utilization effect of electrolytic manganese slag, poor economic efficiency, etc., and achieve the protection of ecological environment and natural environment , save burning energy consumption, improve the effect of hydration activity

Active Publication Date: 2017-09-08
湖南省小尹无忌环境能源科技开发有限公司
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] However, the above-mentioned technical scheme has problems such as poor economy, small consumption of electrolytic manganese slag or obvious secondary pollution, and objectively cannot solve the problem of resourceful treatment of electrolytic manganese slag
[0024] The above-mentioned existing technical approaches or technical methods on the management and comprehensive utilization of manganese slag have objectively obtained certain research results or application results, and the management of manganese slag has also been included in the national "863 Plan" subject And the results have been checked and accepted. However, so far, except that the manganese slag can be better utilized due to the lack of sources of admixture slag in cement production, the actual comprehensive utilization effect of the largest electrolytic manganese slag is not satisfactory, and a large amount is still simply used. Buried or discarded in culverts and ravines, it has a great impact on the ecological environment of groundwater, soil and surface water, and even long-term hidden dangers. Resource Utilization Issues

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Using the tunnel kiln production line process equipment of a shale brick factory to process the electrolytic manganese slag to prepare ecologically active slag and ecologically active slag powder:

[0055] (1) Ingredients and homogenization: Crushed stone coal (calorific value 1210kcal / kg), mud-containing waste rock chips and partially agglomerated electrolytic manganese slag stored in the aging process are all crushed to a particle size of <35mm, by weight, 50 parts of electrolytic manganese slag, 15 parts of stone coal, 34.5 parts of mud-containing waste stone chips and 0.5 parts of ZC-S1 alteration agent are prepared by computer, and they are continuously sent to the Raymond mill system and mixed and ground to produce 80μm sieve mass 26% powder, then add 11 parts of water, mix and homogenize into plastic material;

[0056] (2) Forming: the plastic material obtained in step (1) is formed into a porous brick-like material by a brick forming machine, and dried naturally;

[0...

Embodiment 2

[0065] Use the tunnel kiln production line process equipment of a refractory brick factory to process electrolytic manganese slag to prepare ecologically active slag and ecologically active slag powder:

[0066] (1) Ingredients and homogenization: crush stone coal (heat value of 1530kcal / kg), dry-process acetylene carbide slag to a particle size of <35mm, and 71 parts by weight of loose electrolytic manganese slag (particle size <10mm ), 8.5 parts of stone coal, 20 parts of dry-process acetylene carbide slag and 0.5 parts of ZC-S1 alteration agent for microcomputer batching, and continuous feeding into the Raymond mill system, mixing and grinding into 80μm sieve residual mass of 18% powder Then add 13 parts of water, mix and homogenize into plastic material;

[0067] (2) Forming: the plastic material obtained in step (1) is formed into a brick-like material by a brick-making forming machine, and it is naturally dried;

[0068] (3) Tunnel kiln calcination: send the naturally dried br...

Embodiment 3

[0075] Using the tunnel kiln production line process equipment of a refractory brick factory to process the electrolytic manganese slag to prepare ecologically active slag and ecologically active slag powder:

[0076] (1) Ingredients and homogenization: crush the agglomerated wet-process acetylene carbide slag to a particle size of <35mm, and 18 parts by weight of ridged and dehydrated municipal sludge (heat value 1875kcal / kg), 21.5 parts of wet Method acetylene carbide slag and 0.5 part of ZC-S7 type alteration agent are used for the first-level microcomputer batching, and the powder is mixed and ground to produce 25% powder with 80μm sieve mass, and then the obtained powder is mixed with 60 parts of water-containing primary electrolytic manganese The slag (moisture content 30.8wt%, particle size <1mm) undergoes second-level microcomputer batching, and is sent to the rolling and mixing device to be homogenized into plastic materials;

[0077] (2) Forming: the plastic material obta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
heating valueaaaaaaaaaa
Login to view more

Abstract

The method for preparing ecologically active slag by treating electrolytic manganese slag with tunnel kiln equipment includes the following steps: (1) batching and homogenization: by weight, 45-75 parts of electrolytic manganese slag, 8-25 parts of stone coal, 14.7- 45.0 parts of waste rock slag and 0.3 to 2.0 parts of altering agent are mixed and ground to make powder, and 5 to 15 parts of water are added to mix and homogenize into plastic materials; (2) Molding: plastic materials are formed into rods or blocks Materials; (3) Tunnel kiln calcination: Send the shaped material into the tunnel kiln, calcine at 980-1300°C for 20-60 minutes, and quench to obtain ecologically active slag. The ecologically active slag obtained according to the method of the present invention contains various hydration active minerals, can be widely used in the cement industry, and has high strength during use. It is used as masonry cement or cement bricks, which is easy to pulp and has high strength; using the method of the present invention, Small investment, no waste water and waste residue, good economy.

Description

Technical field [0001] The invention relates to a method for preparing ecologically active slag from electrolytic manganese slag, in particular to a method for preparing ecologically active slag by treating electrolytic manganese slag with tunnel kiln equipment. Background technique [0002] my country is the world's largest manganese industry, and its pure manganese output accounts for more than 95% of the world's total. The waste slag discharged during the processing of the manganese industry is manganese slag, including "manganese slag" and "manganese slag." Manganese slag is a water-quenched blast furnace slag made from high-temperature slag discharged during the smelting process of ferromanganese alloy or silico-manganese alloy. The amount of manganese slag produced by one ton of ferromanganese alloy is 2 to 2.5 tons, and its activity is only Blast furnace slag is second to pig iron smelting, better than low calcium fly ash, and can be directly used as cement admixture or pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/14
CPCY02P40/10
Inventor 尹小林尹无忌
Owner 湖南省小尹无忌环境能源科技开发有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap