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A co-processing process of solid waste, sintering and pellets based on reasonable moisture control

A technology of co-processing and pelletizing, applied in sintering, solid waste treatment process, pellet co-processing process, solid waste field, can solve the problem that the quality, role and status of products affecting the sintering process and pelletizing process are not fully exerted, Can not adapt to problems such as solid waste output, and achieve the effect of improving the efficiency and effect of incineration and/or pyrolysis, uniform temperature distribution of the kiln body, and improving the effect of reduction treatment

Active Publication Date: 2022-02-18
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patent documents only involve a single solid waste disposal, and the types of solid waste disposed of are very limited, which cannot adapt to the complex solid waste output of steel plants and municipalities. The role and status in the
[0007] In addition, in the treatment of solid waste in the existing technology, only the characteristics of the solid waste itself are considered, and the raw material requirements of the sintering process and the pelletizing process are not combined. As a result, the original product quality of the sintering process and the pelletizing process is affected due to the treatment of solid waste

Method used

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  • A co-processing process of solid waste, sintering and pellets based on reasonable moisture control
  • A co-processing process of solid waste, sintering and pellets based on reasonable moisture control
  • A co-processing process of solid waste, sintering and pellets based on reasonable moisture control

Examples

Experimental program
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Effect test

Embodiment 1

[0154] Such as figure 1 As shown, a co-processing process of solid waste, sintering and pellets based on reasonable moisture control, the process includes the following steps:

[0155] (1) Solid waste: This solid waste includes organic solid waste and iron-containing high-salt solid waste.

[0156] (2) Solid waste pretreatment: oxidative incineration of organic solid waste to obtain incineration slag and pyrolysis of organic solid waste to obtain pyrolysis slag. The iron-containing high-salt solid waste is subjected to a water elution salt process to obtain brine and filter residue.

[0157] (3) Co-processing: Mix the incineration slag (or pyrolysis slag) and filter residue obtained in step (2) with sintering raw materials, and then transport the mixed mixture to the sintering process.

[0158] Wherein, the moisture mass content in the mixture after controlling mixing is S 0 %, S 0 for 13. The sum of the mass of incineration slag (or pyrolysis slag) and filter residue in...

Embodiment 2

[0160] Repeat Example 1, except that the S 0 is 9, and the M is 3.

Embodiment 3

[0162] Example 2 was repeated, except that the incineration slag (or pyrolysis slag) and filter residue obtained in step (2) were mixed with the pellet raw material, and then the mixed mixture was sent to the pelletizing process. The S 0 is 7, and the M is 5.

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Abstract

The invention discloses a co-processing process of solid waste, sintering and pellets based on reasonable moisture control. According to the respective moisture contents in incineration slag (or pyrolysis slag), filter residue, sintering raw material and pellet raw material, control incineration slag, The addition amount of pyrolysis residue, filter residue, sintering raw material and pellet raw material can control the moisture content in the mixed material after mixing. That is, the present invention mixes the filter residue, pyrolysis residue or incineration residue produced by washing iron-containing high-salt solid waste water with sintering raw materials and / or pelletizing raw materials, and finally carries out terminal disposal in the sintering and pelletizing process, reducing the drying of filter residues. process to realize the collaborative treatment of various solid wastes. Finally, the whole-process disposal of various solid wastes can be realized, and the impact of solid wastes on the environment and the risk of secondary pollution can be completely eliminated.

Description

technical field [0001] The invention relates to a solid waste treatment process, in particular to a solid waste, sintering and pellet co-processing process based on reasonable moisture control; it belongs to the technical field of organic solid waste co-sintering and pellet treatment. Background technique [0002] Solid waste is the waste material produced by people in normal production and life, and has lost its original use value. Due to the difficulty in site selection, high operating costs, and serious NIMBY effect of centralized disposal facilities for solid waste, especially hazardous waste, there is a serious gap in solid waste disposal capacity. At present, the large amount of solid waste stockpiled in my country has made it difficult to support the fragile environmental carrying capacity, and has become the main cause of "NIMBY" incidents. Realizing solid waste source reduction, resource utilization and harmless disposal has become an urgent and major livelihood de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/027F23G5/28F23G5/44F23G5/50C22B1/00C22B1/02C22B1/16C22B1/24
CPCF23G5/027F23G5/50F23G5/444F23G5/44F23G5/28C22B1/16C22B1/2406C22B1/02C22B1/005
Inventor 叶恒棣魏进超李谦周浩宇王兆才沈维民
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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