A method for reprocessing tailings produced after comprehensive treatment of waste incineration slag

A waste incineration slag, comprehensive treatment technology, applied in chemical instruments and methods, magnetic separation, solid separation and other directions, can solve the problems of unmentioned tailings, environmental pollution, waste of resources, etc., and achieves remarkable recovery effect and high strength. , the effect of rapid prototyping

Active Publication Date: 2021-04-09
扬州市同创再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the light weight of aluminum, it is often lost after being impacted by water, or landfilled with tailings, resulting in waste of resources and pollution to the environment
None of the above patents mentioned how to effectively treat the tailings after the comprehensive treatment of slag

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]Rendering method of tail residue generated after garbage burning slag, including the following steps:

[0024](1) Collecting the waste incinerator slag after the metal recovery process flows into the slag-containing tank containing light slag powder, then fed into the first roller sieve, the first roller sieve is 1.5m, the length is 6m, the sieve 0.8 cm, after screening, the particle size greater than 0.8 cm tail residue is sent to the first metal sorter for the recovery of metal aluminum; the magnetic selector strength of the first metal separator is 3500T, the raw material is transported by about 12 tons. / Hour, the conveyor bandwidth is 1.2 meters, and the speed is 3 meters per second.

[0025](2) The particle size is less than 0.8 cm, the tail residue is sent to the second roller sieve, the second roller sieve is 1.5m, the length is 8m, the screen is 0.3 cm, and the screen is sent after the screening Enter the vibration dehydration machine for dehydration;

[0026](3) After dehydr...

Embodiment 2

[0032]Re-treatment method of tail degenesis generated after garbage incinerator slag, wherein step (4), with a weight gauge, take 6 parts of cement, 105 modified tail degenesis, 6.8 parts of ceramic powder, 4 parts. Sodium sulfate, 0.8 parts of 4,4'-octylamine, 2.3 sodium citrate, 0.31 parts of phosphite and 2.2 parts of polyvinyl butyral. The remaining technical content is the same as in Example 1.

[0033]Tested, the evapotrophic bricks prepared by the present invention were 4.87 mPa, and the compressive strength was 33.2 MPa.

Embodiment 3

[0035]Re-treatment method of tail residue generated after garbage incinerator slag, wherein step (4), 5.5 parts of cement, 110 modified tail degenesis, 8 parts of ceramic powder, 3.5 parts sodium sulfate, 0.6 parts 4,4'-octyl diphenylamine, 1.5 sodium citrate, 0.4 serial phosphite and 2 parts of polyvinyl butyral. The remaining technical content is the same as in Example 1.

[0036]Tested, the anti-compensation strength of the evapotrophic brick prepared by the present invention was 5.2 MPa, and the compressive strength was 35.1 MPa.

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Abstract

The invention provides a method for reprocessing the tailings produced after the comprehensive treatment of waste incineration slag. Multi-stage screening and sorting steps are set to efficiently recycle the metal aluminum in the tailings. At the same time, the recovered aluminum Tailings can be specifically modified to produce non-fired bricks, which improves the recycling rate of waste and resource recovery.

Description

Technical field[0001]The present invention relates to the field of garbage recovery reuse, and more particularly to the rendering method of the tail residue generated after the garbage incinerator slag composite treatment.Background technique[0002]The slag is a by-product of domestic waste incineration, including the residual burning residue and the particulate matter dropped from the furnace. The slag is composed of slag, brick, glass, ceramic, stone, metal and organic matter. If you want to use the slag, it is necessary to perform screening, classify, and use the useful metal material to obtain a high value-added product.[0003]CN105195313A discloses a method of recovering metal and combustible materials from domestic waste incinerator slag, which achieves separation of magnetic metals in the slag by multi-stage gradient magnetically selected, using two-stage eddy current selection to recover non-ferrous metals in the slag, ultimately The magnetic selection rate of stainless steel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B40/02B07B1/22B07B1/46B03C1/02
CPCB03C1/02B07B1/22B07B1/4609C04B28/00C04B40/024C04B2201/50C04B18/141C04B18/165C04B22/147C04B24/06C04B24/121C04B24/003C04B24/26C04B2103/40
Inventor 梁品
Owner 扬州市同创再生资源有限公司
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