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Process and system for domestic garbage incineration waste heat drying pretreatment

A technology for domestic waste incineration and urban domestic waste, applied in incinerators, combustion methods, combustion types, etc., can solve problems such as large energy consumption, and achieve the effects of improving recovery efficiency, increasing low calorific value, and improving incineration processing capacity

Active Publication Date: 2015-03-25
武汉市德禾顺贸易有限公司
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Problems solved by technology

These technologies have the problem of high energy consumption

Method used

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  • Process and system for domestic garbage incineration waste heat drying pretreatment

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Embodiment Construction

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0045] The present invention provides a pretreatment process for waste heat drying of domestic waste incineration, comprising the following steps:

[0046] S1. Unloading: The collected municipal solid waste is unloaded in the unloading hall, and transported to the drying equipment through the apron feeder.

[0047] S2. Drying: Urban domestic waste is stirred continuously for 20-30 minutes at a temperature of 180-200°C, causing the plastic bag or packaging to break, the water in the waste is evaporated, and its moisture content is reduced to 15%;

[0048] Specifically, the heat source of the garbage drying drum is firstly the waste heat steam from waste incineration power generation, which wraps the outside of the drying drum; Under the adjustment of the control system, the two systems realize the stability of the moisture content of the garba...

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Abstract

The invention provides a process for domestic garbage incineration waste heat drying pretreatment. The process comprises the steps of unloading, drying, screening, sorting and incinerating. A system for implementing the process comprises an unloading part, a drying part, a screening part, a sorting platform, a gas control part and a garbage storage pit, wherein the unloading part receives town domestic garbage and conveys the garbage into the drying part; the drying part evaporates the water in the garbage to reduce the water ratio of the garbage; the screening part screens the dried garbage into objects on a screen and objects under the screen; the sorting platform sorts the objects on the screen and the objects under the screen into recyclable waste materials and remaining waste materials; and the gas control part conveys rising odor steam into a steam-water separation device, part of the gas is conveyed into the garbage storage pit to serve as combustion-supporting air to incinerate with the remaining waste materials, and the collected water is conveyed into a water treatment system. By the process provided by the invention, the treatment efficiency and the resource utilization ratio of the original treatment technology can be improved, the energy consumption is reduced, and secondary pollution is prevented.

Description

technical field [0001] The invention relates to the field of garbage treatment, in particular to a domestic garbage incineration waste heat drying pretreatment process and system thereof. Background technique [0002] my country's domestic waste treatment technology and methods are becoming more and more popular and mature, and both incineration and landfill have reached the international advanced level. However, how to combine the characteristics of my country's garbage components to further improve the adaptability of technology, tap and utilize the processing efficiency of existing technologies, improve processing capacity, improve the level of harmlessness, resource utilization and reduction, and then improve environmental benefits and economic Benefits have always been the focus of domestic related technology research and design industries. [0003] my country's municipal solid waste has the characteristics of many perishable organic matter and high moisture content, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/04F23G5/02F23G5/44F23G5/46
CPCY02E20/12
Inventor 冯其林陈朱蕾杨列
Owner 武汉市德禾顺贸易有限公司
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