CN102357513A - RDF city garbage disposal method - Google Patents
RDF city garbage disposal method Download PDFInfo
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- CN102357513A CN102357513A CN201110242136XA CN201110242136A CN102357513A CN 102357513 A CN102357513 A CN 102357513A CN 201110242136X A CN201110242136X A CN 201110242136XA CN 201110242136 A CN201110242136 A CN 201110242136A CN 102357513 A CN102357513 A CN 102357513A
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- CN
- China
- Prior art keywords
- flammable substances
- rdf
- substances
- disposal method
- feeding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
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- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to an RDF city garbage disposal method, relating to a garbage disposal method. The disposal method comprises the following steps of: compressing primary garbage, feeding the primary garbage into a screening machine through a material conveyor to screen and remove non-flammable substances, feeding flammable substances into a dryer after crushing the flammable substances, adjusting the moisture content through hot air so that the moisture of materials is decreased to be below 15%, after drying the materials, recycling metallic substances through magnetic separation, after carrying out secondary crushing of the flammable substances, adding preservative and neutralizer in a certain proportion and uniformly stirring, feeding the flammable substances into a forming machine, cooling the flammable substances to prepare RDF, disposing the non-flammable substances in the process, and returning sandy soil and pebbles to a landfill site. According to the method disclosed by the invention, the energy recycling effect is good; the consumption of a part of fossile energy can be replaced; the CO2 decrement effect is good; the method is beneficial to easing the global greenhouse effect; the secondary pollution discharge is reduced; and the emission of Dioxin can be effectively reduced.
Description
Technical field:
The present invention relates to a kind of processing method of rubbish, be specifically related to a kind of RDF treating method for urban garbage.
Background technology:
Along with The development in society and economy, domestic waste output increases day by day, and garbage disposal has become the problem that must solve in many countries and the big city development.Present national town dweller house refuse annual production per capita is 450kg, and the annual production of National urban house refuse has reached hundred million tons of 1.8-2.1, and with 9% speed increase.The domestic waste that accumulates over the years is about 6,500,000,000 tons, and the appropriation of land area reaches 5.5 hundred million square metres, and is therefore, very important to the processing of rubbish.
The huge municipal refuse of quantity constitutes the threat that is on the rise to the ecological environment of surrounding city, has at least more than 2/3 in 668 cities, the whole nation and is surrounded by rubbish.The direct simple and easy stacking of rubbish, rubbish produce a large amount of acid with alkaline organic pollutions in decay process, and the heavy metal in the dissolving rubbish, form organic matter, heavy metal and the Trinitarian pollutant of pathogenic microorganism.Simultaneously to the toxic and harmful of the carcinogenic teratogenesis of airborne release.
The target that solves China's domestic waste is to realize that rubbish subtracts appearanceization, minimizing, resource, energy and harmless processing.The main method of Urban Garbage Treatment in China has three kinds of sanitary landfills, During High-Temperature Composting and burnings, but aggregate level is very low always.There are three big problems in sanitary landfills:
1, taken land resource.2, secondary pollution is serious.3, the potential danger that cannot not know is arranged, the many non-degradable things in the rubbish, the centuries is not degraded, moreover the operating period is short, and cost is high, the wasting of resources of recyclable utilization in the rubbish; During High-Temperature Composting, this method need people that organic waste and other rubbish are separated, also are not very desirable at present in this respect; Though burn and can make rubbish volume-diminished 50%～90%, burnt callable resource, discharge toxic gas, like the mercuryvapour in dioxin, the battery etc., produce poisonous and harmful slag and dust.
Summary of the invention:
The purpose of this invention is to provide a kind of RDF treating method for urban garbage, its energy recovery effect is good, the consumption of instead part fossil energy, CO
2Decrement is effective, helps to relax global greenhouse effect, and the secondary pollution discharge capacity is few; Can effectively reduce the discharging of dioxin.
In order to solve the existing problem of background technology, the present invention takes following technical scheme: its processing method is: crude waste is sent into screening machine through compression through material conveyor; Sieve, remove noncombustibles matter, combustible carries out the fragmentation back and gets into dryer; Through hot blast adjustment moisture content, the moisture of material is dropped to below 15%, reclaim metallics through magnetic separation the oven dry back; Combustible carries out after the second-time breakage a certain proportion of anticorrisive agent and nertralizer adding being mixed thoroughly, gets into make-up machine, and RDF is processed in cooling; Noncombustibles in the processing procedure will return the landfill yard landfill like sandy soil, stone.
The present invention has following beneficial effect: its energy recovery effect is good, the consumption of instead part fossil energy, CO
2Decrement is effective, helps to relax global greenhouse effect, and the secondary pollution discharge capacity is few; Can effectively reduce the discharging of dioxin.
The specific embodiment:
This specific embodiment is taked following technical scheme: its processing method is: crude waste is sent into screening machine through compression through material conveyor, sieves; Remove noncombustibles matter, combustible carries out the fragmentation back and gets into dryer, through hot blast adjustment moisture content; The moisture of material is dropped to below 15%, and reclaim metallics through magnetic separation the oven dry back, and combustible carries out after the second-time breakage a certain proportion of anticorrisive agent and nertralizer adding being mixed thoroughly; Get into make-up machine; RDF is processed in cooling, and the noncombustibles in the processing procedure will return the landfill yard landfill like sandy soil, stone.
This specific embodiment energy recovery effect is good, the consumption of instead part fossil energy, CO
2Decrement is effective, helps to relax global greenhouse effect, and the secondary pollution discharge capacity is few; Can effectively reduce the discharging of dioxin.
Claims (1)
1. RDF treating method for urban garbage is characterized in that its processing method is: crude waste is sent into screening machine through compression through material conveyor; Sieve, remove noncombustibles matter, combustible carries out the fragmentation back and gets into dryer; Through hot blast adjustment moisture content, the moisture of material is dropped to below 15%, reclaim metallics through magnetic separation the oven dry back; Combustible carries out after the second-time breakage a certain proportion of anticorrisive agent and nertralizer adding being mixed thoroughly, gets into make-up machine, and RDF is processed in cooling; Noncombustibles in the processing procedure will return the landfill yard landfill like sandy soil, stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110242136XA CN102357513A (en) | 2011-08-23 | 2011-08-23 | RDF city garbage disposal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110242136XA CN102357513A (en) | 2011-08-23 | 2011-08-23 | RDF city garbage disposal method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102357513A true CN102357513A (en) | 2012-02-22 |
Family
ID=45582925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110242136XA Pending CN102357513A (en) | 2011-08-23 | 2011-08-23 | RDF city garbage disposal method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102357513A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827662A (en) * | 2012-09-04 | 2012-12-19 | 清华大学 | Preparation method applicable to treating garbage derivate by being jointed with cement kiln |
| CN102925240A (en) * | 2012-11-27 | 2013-02-13 | 中国环境科学研究院 | Method for preparing garbage derived fuel by utilizing waste filler of bacteria filter |
| CN107448944A (en) * | 2017-08-04 | 2017-12-08 | 北京鸿洲兴业环保科技有限公司 | Old waste incineration and building materials system processed |
-
2011
- 2011-08-23 CN CN201110242136XA patent/CN102357513A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827662A (en) * | 2012-09-04 | 2012-12-19 | 清华大学 | Preparation method applicable to treating garbage derivate by being jointed with cement kiln |
| CN102925240A (en) * | 2012-11-27 | 2013-02-13 | 中国环境科学研究院 | Method for preparing garbage derived fuel by utilizing waste filler of bacteria filter |
| CN107448944A (en) * | 2017-08-04 | 2017-12-08 | 北京鸿洲兴业环保科技有限公司 | Old waste incineration and building materials system processed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120222 |