CN101099941A - Method for screening heavy metals in garbage - Google Patents

Method for screening heavy metals in garbage Download PDF

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Publication number
CN101099941A
CN101099941A CNA2006100146102A CN200610014610A CN101099941A CN 101099941 A CN101099941 A CN 101099941A CN A2006100146102 A CNA2006100146102 A CN A2006100146102A CN 200610014610 A CN200610014610 A CN 200610014610A CN 101099941 A CN101099941 A CN 101099941A
Authority
CN
China
Prior art keywords
slurry
oversize
sieving
heavy metal
belt feeder
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.)
Pending
Application number
CNA2006100146102A
Other languages
Chinese (zh)
Inventor
杜云福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN HANGU REGION FUXIANG FERTILIZER PROCESSING FACTORY
Original Assignee
TIANJIN HANGU REGION FUXIANG FERTILIZER PROCESSING FACTORY
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANJIN HANGU REGION FUXIANG FERTILIZER PROCESSING FACTORY filed Critical TIANJIN HANGU REGION FUXIANG FERTILIZER PROCESSING FACTORY
Priority to CNA2006100146102A priority Critical patent/CN101099941A/en
Publication of CN101099941A publication Critical patent/CN101099941A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

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  • Treatment Of Sludge (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The process of sieving garbage to eliminate heavy metal includes the following steps: continuous feeding fermented and decayed domestic refuse from one fermenting bin with one belt conveyer, mixing refuse with water and sieving in a vibrating sieve while spraying water to flush; conveying the oversize with one slow belt conveyer to a waste room and sorting out some fibrous waste; flowing the undersize together with water to a depositing pan and sieving in a small mesh sieve, pumping the slurry of the undersize to a eddy flow tower for separating heavy matter to the settling tank and other slurry to the slurry tank; milling the oversize from the small mesh sieve in a wet tube mill and feeding the milled matter to the slurry tank; pumping the slurry into one intermediate tank and dewatering in a belt filter. The present invention has the advantages of reduced heavy metal pollution and raised organic matter content in the refuse compost.

Description

A kind of method of sieving heavy metal in the rubbish
Technical field
The present invention relates to a kind of method of sieving heavy metal in the rubbish.
Background technology
At present, the processing direction of house refuse is that domestic rubbish disposal is become fertilizer, and the organic matter that is rich in the house refuse is used.After the consumer garbage compostization, on agricultural, use in a large number.House refuse is packing not, and the composition complexity contains a large amount of heavy metal compositions, at the processing means of heavy metal, has not caused the content of beary metal in the fertilizer product to exceed standard, and long-term a large amount of use meetings have serious pollution to crop and soil.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of method of sieving heavy metal in the rubbish is provided.
Technical scheme of the present invention is: a kind of method of sieving heavy metal in the rubbish, it is characterized in that: behind the house refuse fermentation maturity, shovel out from fermentation cabin with forklift, be discharged at the uniform velocity feed hopper, transfer even moving material to, send into the wet concentration mixing channel through belt feeder, make rubbish and water fully mix the back and flow into bolting, and hydroblasting; Oversize is sent into salvage department through belt feeder at a slow speed, and the small amount of fibers class is through manually sorting out.Screenings flows into the ponding dish downstream, enters the fine fack sieve, and the slurry of screenings flows into the intermediate slurry pond, forms swirling flow by slush pump suction swirling flow tower again, and a part of heavy substance enters sedimentation basin, and other slurries enter kiln basin; Fine fack sieve oversize is sent into the wet pipe grinding machine by belt feeder, the levigate laggard kiln basin of going into; By slush pump suction pans, flow into the dehydration of dewaterer or band filter certainly later on; Dehydration back fertilizer moisture content is about 30%.
The present invention has the following advantages: stop heavy metal pollution; Improve the content of organic matter of garbage compost.
The specific embodiment
Embodiment: a kind of method of sieving heavy metal in the rubbish, behind the house refuse fermentation maturity, from fermentation cabin, shovel out with forklift, be discharged at the uniform velocity feed hopper, transfer even moving material to, send into the wet concentration mixing channel through belt feeder, make rubbish and water fully mix the back and flow into bolting, and hydroblasting; Oversize is sent into salvage department through belt feeder at a slow speed, the small amount of fibers class is through manually sorting out, screenings flows into the ponding dish downstream, enter the fine fack sieve, the slurry of screenings flows into the intermediate slurry pond, form swirling flow by slush pump suction swirling flow tower again, a part of heavy substance enters sedimentation basin, and other slurries enter kiln basin; Fine fack sieve oversize is sent into the wet pipe grinding machine by belt feeder, the levigate laggard kiln basin of going into; By slush pump suction pans, flow into the band filter dehydration certainly later on.

Claims (1)

1, a kind of method of sieving heavy metal in the rubbish, it is characterized in that: behind the house refuse fermentation maturity, shovel out from fermentation cabin with forklift, be discharged at the uniform velocity feed hopper, transfer even moving material to, send into the wet concentration mixing channel through belt feeder, make rubbish and water fully mix the back and flow into bolting, and hydroblasting; Oversize is sent into salvage department through belt feeder at a slow speed, the small amount of fibers class is through manually sorting out, screenings flows into the ponding dish downstream, enter the fine fack sieve, the slurry of screenings flows into the intermediate slurry pond, form swirling flow by slush pump suction swirling flow tower again, a part of heavy substance enters sedimentation basin, and other slurries enter kiln basin; Fine fack sieve oversize is sent into the wet pipe grinding machine by belt feeder, the levigate laggard kiln basin of going into; By slush pump suction pans, flow into the band filter dehydration certainly later on.
CNA2006100146102A 2006-07-04 2006-07-04 Method for screening heavy metals in garbage Pending CN101099941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2006100146102A CN101099941A (en) 2006-07-04 2006-07-04 Method for screening heavy metals in garbage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2006100146102A CN101099941A (en) 2006-07-04 2006-07-04 Method for screening heavy metals in garbage

Publications (1)

Publication Number Publication Date
CN101099941A true CN101099941A (en) 2008-01-09

Family

ID=39034483

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2006100146102A Pending CN101099941A (en) 2006-07-04 2006-07-04 Method for screening heavy metals in garbage

Country Status (1)

Country Link
CN (1) CN101099941A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109355116A (en) * 2018-09-26 2019-02-19 田永生 Utilize the method for house refuse fungi degradation production natural gas
CN109534868A (en) * 2018-11-14 2019-03-29 文华学院 Device and method based on fermentation method processing various heavy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109355116A (en) * 2018-09-26 2019-02-19 田永生 Utilize the method for house refuse fungi degradation production natural gas
CN109534868A (en) * 2018-11-14 2019-03-29 文华学院 Device and method based on fermentation method processing various heavy

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C57 Notification of unclear or unknown address
DD01 Delivery of document by public notice

Addressee: Li Defa

Document name: Written notice of preliminary examination of application for patent for invention

C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication