Novel domestic garbage incineration slag sorting technology

A technology for incineration and sorting of domestic waste, applied in the direction of process efficiency improvement, solid separation, etc., can solve the problem of impurity removal efficiency, sorting efficiency and low metal recovery rate, equipment failure rate, high system energy consumption, and recycled aggregates. The problem of high impurity content can reduce labor intensity and equipment failure rate, reduce floor space, and reduce screening equipment.

Active Publication Date: 2020-06-30
JIANGSU TIANYING ENVIRONMENTAL PROTECTION ENERGY COMPLETE EQUIP CO LTD +1
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Problems solved by technology

[0007] To sum up, the current existing slag sorting process mainly has the following problems: (1) The existing sorting process is not perfect, the excessive crushing of slag is serious, and the equipment failure rate and system energy consumption are high, and the impurity removal efficien...

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  • Novel domestic garbage incineration slag sorting technology

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Embodiment Construction

[0052] The technical solutions of the present invention will be clearly and completely described below through specific embodiments.

[0053] A kind of novel household garbage incineration slag sorting process of the present invention comprises the following steps:

[0054] (1) Feeding: Use a forklift or grab crane to continuously transport the slag from the waste incineration power plant to the first impurity removal process through the feeding device to provide continuous raw materials for the entire sorting system; among them, The feeding device adopts an integrated upper hopper for feeding and removing impurities.

[0055] (2) The first impurity removal treatment: a first impurity removal device is installed at the upper end of the upper hopper of the feeding and impurity removal unit, and the first impurity removal device is a vibrating grate; the large-sized impurities in the slag are separated by the vibrating grate , the slag after impurity removal is transported to t...

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Abstract

The invention discloses a novel domestic garbage incineration slag sorting technology. The novel domestic garbage incineration slag sorting technology comprises the following steps of (1) feeding, (2)first-stage purification treatment, (3) first-stage grading treatment, (4) second-stage purification treatment, (5) first-stage magnetic separation treatment, (6) first-stage crushing treatment, (7)second-stage magnetic separation treatment, (8) iron forging treatment, (9) scrap iron dehydration, (10) third-stage purification treatment, (11) fourth-stage purification treatment, (12) second-stagegrading treatment, (13) third-stage magnetic separation treatment, (14) first-stage non-ferrous metal sorting, (15) fourth-stage magnetic separation treatment, (16) second-stage non-ferrous metal sorting, (17) fifth-stage magnetic separation treatment, (18) first-stage gravity sorting, (19) second-stage gravity sorting, (20) fine sand recovery treatment, (21) slag water sedimentation and (22) sediment filter pressing. According to the novel domestic garbage incineration slag sorting technology, the technology step configuration is optimized, by adding multiple manual purification technologiesand wet purification technologies, the purification efficiency is improved, and the dirt percentage of recycled aggregate is decreased.

Description

technical field [0001] The invention relates to the technical field of slag treatment in domestic waste incineration power plants, and in particular to a novel separation process for domestic waste incineration slag. Background technique [0002] In order to cope with the severe situation of "garbage siege", more and more domestic waste incineration power plants are being built in China to "reduce, harmless and recycle" domestic waste. However, after a large amount of domestic waste is incinerated, slag, which accounts for 20% to 30% of the total waste, will be produced. With the increase in the number of domestic waste incineration power plants, the amount of slag produced is also increasing, and the landfill cost of slag is also increasing year by year, so the comprehensive utilization of slag is gradually put on the agenda. However, because the composition of the slag is complex and there are many sundries, it must be effectively sorted to remove the sundries, sort out t...

Claims

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Application Information

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IPC IPC(8): B03B9/04B03B1/00C22B7/00
CPCB03B1/00B03B9/04C22B7/005Y02P10/20
Inventor 张惠林李军王佳李阳顾春华张英杰
Owner JIANGSU TIANYING ENVIRONMENTAL PROTECTION ENERGY COMPLETE EQUIP CO LTD
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