Recycling comprehensive treatment method for slag of waste incineration power plant
A waste incineration and comprehensive treatment technology, which is applied in chemical instruments and methods, grain treatment, wet separation, etc., can solve problems such as difficult disposal, and achieve the effect of simplifying the processing workload and reducing the processing pressure
Active Publication Date: 2022-04-26
郑州绿清环保科技有限公司
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Problems solved by technology
Incineration can greatly reduce the amount of domestic waste (about 90% reduction in volume), but still 20-30% of the mass remains in the slag, so a large amount of ash is produced, which brings difficulties in disposal
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[0016] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples.
[0017] A resource-based comprehensive treatment method for waste incineration power plant slag. The overall idea of the method is: divide the slag into coarse slag, fine slag and ultra-fine slag according to the particle size, and use the fine slag and the broken coarse slag as the base mixed slag , the ultra-fine slag is separated after iron removal to obtain light materials and heavy materials, and then the heavy materials are separated to obtain non-ferrous heavy metals and non-metallic tailings, and the non-metallic tailings and light materials are mixed and separated to obtain combustibles and particles. Particles are mixed with part of the base-mixed slag and used as building materials, and the remaining base-mixed slag is mixed ...
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Abstract
A comprehensive recycling treatment method for slag of a waste incineration power plant comprises the steps that the slag is divided into coarse slag, fine slag and superfine slag according to the particle size, the fine slag and the crushed coarse slag serve as basic mixed slag, the superfine slag is subjected to iron removal and then separated, and light materials and heavy materials are obtained; the heavy material is separated again to obtain colored heavy metal and non-metal tailings, the non-metal tailings and the light material are mixed and separated to obtain combustible materials and particulate matters, the particulate matters are mixed with part of the base mixed slag and then used as a building material raw material, and the remaining base mixed slag is mixed with kaolin and hydroxyapatite and used as a nucleation auxiliary agent of glass ceramics. According to the comprehensive treatment method disclosed by the invention, recyclable products such as colored heavy metals, combustibles, building raw materials, glass ceramic forming aids and the like can be obtained, and resource comprehensive treatment of the slag of the waste incineration power plant is realized.
Description
technical field [0001] The invention relates to the technical field of incineration slag treatment, in particular to a resource-based comprehensive treatment method for waste incineration power plant slag. Background technique [0002] Municipal waste treatment technologies are generally divided into three categories: landfill, biochemical treatment, and thermochemical treatment. Currently, the three commonly used methods are landfill, composting, and incineration. Incineration greatly reduces the volume of garbage, and through the incineration of garbage, the garbage can be turned into electricity. In order to meet the needs of urbanization development and alleviate the increasing pressure of urban domestic waste disposal in China, many cities have built large domestic waste incineration plants in recent years. Incineration can greatly reduce the amount of household waste (reduce about 90% volume), but still 20-30% of the quality remains in the slag, so the generation of s...
Claims
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IPC IPC(8): B02C23/14B03C1/30B07B15/00B03B7/00
CPCB02C23/14B03C1/30B07B15/00B03B7/00B02C2201/06
Inventor 刘斌刘巍
Owner 郑州绿清环保科技有限公司