Method for comprehensively treating and utilizing household garbage incineration slag

A domestic waste incineration and comprehensive treatment technology, which is applied in the field of comprehensive treatment and utilization of domestic waste incineration slag, can solve problems such as air pollution, hidden dangers of construction projects, and environmental pollution, and achieve the effects of eliminating dust, ensuring quality, and reducing metal content

Active Publication Date: 2013-11-27
山东环兴再生资源科技有限公司
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Problems solved by technology

The above-mentioned patents have the following defects: 1. Due to the use of steel ball mills to pulverize the slag, a large amount of dust will be produced, thereby causing certain pollution to the environment. In addition, the odor in the slag will spread outward, causing ce

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  • Method for comprehensively treating and utilizing household garbage incineration slag

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Embodiment Construction

[0022] Such as figure 1 As shown, the method for the comprehensive treatment and utilization of domestic waste incineration slag includes the following steps:

[0023] 1) Screening and primary crushing: The slag produced by incineration has mixed components. In order to prevent damage to the assembly line equipment, primary screening and primary crushing of the slag are required. The slag is sent into the hopper by a forklift, and then transported into the screening roller cage feed port through the conveyor belt. The rolling cage is a trumpet-shaped screen that can rotate continuously. The slag enters from the small opening of the trumpet-shaped rolling cage. After passing through the rotating rolling cage, the slag particles with a diameter of less than 100mm flow out through the mesh on the side of the rolling cage and enter the next process; while the larger slag blocks, stones, and concrete blocks And large pieces of metal flow out through the big mouth end of the trump...

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Abstract

The invention discloses a method for comprehensively treating and utilizing household garbage incineration slag.. The method comprises the following steps: A. screening and primary crushing of slag; B. primary magnetic separation; C. secondary crushing: the slag subjected to the primary magnetic separation is conveyed into a flushing water continuous injection type sanding machine through a conveying belt, the slag is crushed in the sanding machine, and the crushed slag granules flow out of the sanding machine together with the flushing water; D. secondary magnetic separation: the mixture of the slag and the flushing water flowing out of the outlet of the sanding machine flows by a drum magnetic iron remover, and magnetic metals contained in the slag are picked out by secondary magnetic separation; E. buoyancy gravity concentration on other metals; and F. precipitation of non-metallic tailings. Since other metals are picked up by secondary magnetic separation and buoyancy gravity concentration, the metal content in the slag is effectively decreased, the quality of bricks or cement is guaranteed when the treated slag is used to make bricks or cement; and since the flushing water is continuously injected into the sanding machine, most of disgusting odor can be removed and dust is eliminated, and the water circulation manner is adopted, the advantages of saving energy and protecting the environment are achieved.

Description

technical field [0001] The invention relates to a method for processing and utilizing slag, in particular to a method for comprehensively processing and utilizing domestic waste incineration slag. Background technique [0002] The so-called domestic waste incineration slag refers to the waste residue generated under the incinerator row during the domestic waste incineration process. Slag is the residue after domestic waste incineration, which is composed of inhomogeneous mixture of slag, glass, ceramics, metal, combustibles and so on. The main elements of slag are Si, Al and Ca. The main components are amorphous glass matrix, quartz, calcite and so on. The toxicity and harmful components of the slag were analyzed by the Shanghai Environmental Monitoring Center, and the results were all lower than the national standard; the radioactive inspection of the slag was carried out by the Shanghai Building Materials Institution Component Quality Supervision and Inspection Station, ...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00
Inventor 顾振清
Owner 山东环兴再生资源科技有限公司
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