Coke containing domestic waste incineration ash and preparation method thereof

A technology for incinerating ash and ash, which is applied in coking ovens, special forms of dry distillation, petroleum industry, etc., can solve the problems of increased disposal costs, etc., and achieve the effects of facilitating consumption and utilization, simple preparation methods, and easy large-scale industrial application

Active Publication Date: 2022-06-24
河北中煤旭阳能源有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the reduction of landfill sites and the increase of disposal costs, how to adopt appropriate technology to deal with incineration fly ash and achieve the goal of stabilization, resource utilization and harmlessness has become an important livelihood science and technology project.

Method used

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  • Coke containing domestic waste incineration ash and preparation method thereof
  • Coke containing domestic waste incineration ash and preparation method thereof
  • Coke containing domestic waste incineration ash and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0036] Example 1-4: Preparation of Metallurgical Coke Containing Municipal Waste Incineration Ash

[0037]Take the ash after incineration of a garbage dump in a city, and analyze the ash composition. According to the form of oxides, K 2 O is 0.09%, Na 2 O is 0.45%, CaO is 0.21%, Fe 2 O 3 0.33%, MgO 0.09%, SiO 2 is 52.2%; Al 2 O 3 42.7%; TiO 2 2.3%, other 1.63%.

Embodiment 1

[0039] The above-mentioned ash and slag are screened and crushed, and the ash and slag particles with a particle size larger than 3 mm and other incomplete combustion impurities are crushed to make them all become ash and slag with a particle size of less than 3 mm for use.

[0040] The various components of the cleaned coal with the Hastelloy grindability index <60 and the proportion of the original particle size less than 3mm <60% are separately pre-pulverized, so that the proportion of particles with a particle size larger than 3mm is ≥85% before use.

[0041] The coal is blended according to the following mass percentages: 0.1% ash, gas coal 17%, gas fat coal 20%, 1 / 3 coking coal 18%, coking coal 7%, fat coal 16%, lean coal 8%, lean coal 14% ; And uniformly mixed to obtain blended coal; then crushed to obtain blended coal with a particle size of less than 3mm, accounting for 89.5% of its total mass;

[0042] After tamping, it is sent to the tamping coke oven for coking, an...

Embodiment 2

[0044] The above-mentioned ash and slag are screened and crushed, and the ash and slag particles with a particle size larger than 3 mm and other incomplete combustion impurities are crushed to make them all become ash and slag with a particle size of less than 3 mm for use.

[0045] The various components of the cleaned coal with the Hastelloy grindability index <60 and the proportion of the original particle size less than 3mm <60% are separately pre-pulverized, so that the proportion of particles with a particle size larger than 3mm is ≥85% before use.

[0046] Coal blending according to the following mass percentages: 0.3% ash, gas coal 15%, gas fat coal 21%, 1 / 3 coking coal 18%, coking coal 6%, fat coal 20%, lean coal 10%, lean coal 10% ; and uniformly mixed to obtain blended coal; then crushed to obtain blended coal with a particle size of less than 3mm, accounting for 90.2% of its total mass;

[0047] After tamping, it is sent to the tamping coke oven for coking, and the...

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Abstract

The invention discloses a kind of coke containing urban living garbage incineration ash and a preparation method thereof. The coke raw material is composed of ash and cleaned coal, and the preparation method according to the present invention is simple, easy for large-scale industrial application, and brings a new type of raw material to the field of coking coal blending, saving the consumption of cleaned coal; preparing The coke fully meets the needs of ironmaking, smelting, chemical industry and other industries, and these industries have huge production capacity, which is conducive to the consumption and utilization of ash and slag, and has environmental protection and economic value.

Description

technical field [0001] The invention belongs to the technical field of residue treatment and reuse after municipal solid waste incineration, and particularly relates to a coke containing municipal solid waste incineration ash and a preparation method thereof. Background technique [0002] As the government strengthens the management of domestic waste disposal reduction, harmlessness and resource utilization, domestic waste disposal has become an important part of urban management and public services. According to China's national conditions and related technologies, domestic waste incineration has become a relatively A good way to deal with it. Incineration ash is an inevitable by-product in the process of municipal solid waste incineration, and it is the residue after the incineration of municipal solid waste. Alumina, iron trioxide, scrap metal, and a small amount of unburned organic matter, etc. At present, the common methods of incineration ash disposal mainly include:...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/04C10B53/00
CPCC10B53/04C10B53/00
Inventor 任华伟李浩伟于守立常卫岗张青青慧云泽申梦栖刘利园孙振满翟记川
Owner 河北中煤旭阳能源有限公司
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