CN110801937A - Urban domestic garbage treatment method - Google Patents
Urban domestic garbage treatment method Download PDFInfo
- Publication number
- CN110801937A CN110801937A CN201910900914.6A CN201910900914A CN110801937A CN 110801937 A CN110801937 A CN 110801937A CN 201910900914 A CN201910900914 A CN 201910900914A CN 110801937 A CN110801937 A CN 110801937A
- Authority
- CN
- China
- Prior art keywords
- treatment
- separation
- oversize
- carrying
- products
- 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
Links
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title abstract description 4
- 238000000926 separation method Methods 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 238000007885 magnetic separation Methods 0.000 claims abstract description 20
- 150000002739 metals Chemical class 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 15
- 238000012216 screening Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 10
- 239000002023 wood Substances 0.000 claims abstract description 10
- 230000005484 gravity Effects 0.000 claims abstract description 8
- 239000010893 paper waste Substances 0.000 claims abstract description 8
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 4
- 238000007603 infrared drying Methods 0.000 claims abstract description 4
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 8
- 238000009270 solid waste treatment Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000019771 cognition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for treating municipal solid waste, which comprises the following steps of firstly, deodorizing the municipal solid waste; step two: carrying out infrared drying treatment on the deodorized household garbage; step three: screening the dried domestic garbage through a drum screen; step four: winnowing the oversize material, and sorting a part of the winnowed oversize material by a near infrared sorting device to sort out waste paper, plastic and chemical fiber; step five: carrying out magnetic separation treatment on the other part of the oversize products subjected to air separation, and carrying out vibration screening treatment on one part of the oversize products subjected to magnetic separation so as to separate out batteries and nonmetal; step six: sending the other part of oversize products subjected to magnetic separation into an eddy current separation device for treatment so as to separate out nonmagnetic metals; step seven: and (4) carrying out gravity separation treatment on the residual oversize products after the nonmagnetic metal is separated out so as to screen out slag stones, glass, organic matters and wood products. The invention improves the resource utilization rate through multi-stage separation.
Description
Technical Field
The invention relates to a method for treating municipal solid waste.
Background
Along with the improvement of the living standard of residents, the cognition of people to garbage is continuously deepened, the garbage production amount is increased day by day, the existing garbage disposal mode has more problems, the garbage landfill disposal mode causes waste to land resources, and the garbage incineration power generation disposal mode can generate larger pollution. Therefore, the search for a new garbage disposal mode becomes a difficult problem which needs to be faced and solved urgently in the current society, the garbage recycling is an ideal mode in many choices, and the bottleneck for limiting the garbage recycling is the sorting of different substances in the garbage.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a municipal solid waste treatment method.
A municipal solid waste treatment method comprises the following steps: step one, deodorizing the household garbage; step two: carrying out infrared drying treatment on the deodorized household garbage; step three: screening the dried domestic garbage through a drum screen, and screening and sorting the domestic garbage with different particle sizes; step four: winnowing the oversize material screened by the roller, and sorting a part of the winnowed oversize material by a near-infrared sorting device to sort out waste paper, plastics and chemical fibers; step five: carrying out magnetic separation treatment on the other part of the oversize products subjected to air separation, and carrying out vibration screening treatment on one part of the oversize products subjected to magnetic separation so as to separate out batteries and nonmetal; step six: sending the other part of oversize products subjected to magnetic separation into an eddy current separation device for treatment so as to separate out nonmagnetic metals; step seven: and D, performing gravity separation treatment on the residual oversize products subjected to the separation of the nonmagnetic metals in the sixth step to separate out slag stones, glass, organic matters and wood products.
Based on the above, in the fourth step, the undersize products after being screened by the roller are also subjected to air separation treatment to separate out plastics and chemical fibers.
Based on the above, the remaining undersize after air separation is subjected to magnetic separation treatment to separate out magnetic metals.
Based on the above, the other part of the undersize after magnetic separation is sent to an eddy current separation device for processing so as to separate out nonmagnetic metals.
Based on the above, the remaining undersize after the separation of the nonmagnetic metals is subjected to gravity separation treatment to separate out slag stones, glass, organic matters and wood products.
The invention has outstanding substantive characteristics and remarkable progress, and particularly, the invention fully sorts different types of garbage by a multi-stage sorting mode so as to conveniently and fully utilize the different sorted garbage, reduce the waste of land resources and the pollution to the environment, obtain good resource utilization effect and obtain better social, economic and environmental benefits.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, a municipal solid waste treatment method comprises the following steps: step one, deodorizing the household garbage; step two: carrying out infrared drying treatment on the deodorized household garbage; step three: screening the dried domestic garbage through a drum screen, and screening and sorting the domestic garbage with different particle sizes; step four: winnowing the oversize material screened by the roller, and sorting a part of the winnowed oversize material by a near-infrared sorting device to sort out waste paper, plastics and chemical fibers; step five: carrying out magnetic separation treatment on the other part of the oversize products subjected to air separation, and carrying out vibration screening treatment on one part of the oversize products subjected to magnetic separation so as to separate out batteries and nonmetal; step six: sending the other part of oversize products subjected to magnetic separation into an eddy current separation device for treatment so as to separate out nonmagnetic metals; step seven: and D, performing gravity separation treatment on the residual oversize products subjected to the separation of the nonmagnetic metals in the sixth step to separate out slag stones, glass, organic matters and wood products.
In practice, the bag of the thrown household garbage needs to be broken first, and then the scattered household garbage needs to be deodorized and dried. After being screened by a drum screen, the domestic garbage with large particle size is used as oversize materials and is winnowed, then light waste paper, plastic, chemical fiber and the like are separated, the waste paper, the plastic, the chemical fiber and the like are separated by near infrared separation, and then the separated waste paper is used for recycling, and the separated plastic and the chemical fiber are used for cracking to prepare oil. The surplus oversize of selection by winnowing carries out the magnetic separation and handles to select out magnetic substance, mostly be magnetic metal in the magnetic substance, but because the battery also has magnetism, and the recovery mode of battery is different with magnetic metal, consequently select out magnetic substance after vibrations screening, select separately battery and magnetic metal and retrieve. And sending the other part of oversize products subjected to magnetic separation into an eddy current separation device for treatment so as to separate out nonmagnetic metals for recovery. And (3) carrying out gravity separation treatment on the residual oversize products after the non-magnetic metal is separated out so as to separate out slag stones, glass, organic matters and wood products, wherein the slag stones can be used for making bricks, the organic matters can be used for fermentation, and the glass and wood products can be recovered.
Specifically, after being screened by a drum screen, the household garbage with small particle size is used as undersize, and is subjected to air separation to separate out lighter plastics and chemical fibers for cracking to prepare oil; because the particle size of the undersize is smaller, the undersize generally does not contain waste paper, and the undersize does not need to be sorted by a near-infrared sorting device. And (4) carrying out magnetic separation treatment on the residual undersize materials by winnowing to separate out magnetic substances, wherein the undersize materials are small-particle magnetic common metals due to small particle size, so that vibration screening is not needed. And sending the other part of the undersize products after magnetic separation into an eddy current separation device for treatment so as to separate out nonmagnetic metals for recovery. And (3) carrying out gravity separation treatment on the residual undersize after the non-magnetic metal is separated out so as to separate out slag, glass, organic matters and wood products, wherein the slag can be used for making bricks, the organic matters can be used for fermentation, and the glass and wood products can be recovered.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A municipal solid waste treatment method is characterized by comprising the following steps:
step one, deodorizing the household garbage;
step two: carrying out infrared drying treatment on the deodorized household garbage;
step three: screening the dried domestic garbage through a drum screen, and screening and sorting the domestic garbage with different particle sizes;
step four: winnowing the oversize material screened by the roller, and sorting a part of the winnowed oversize material by a near-infrared sorting device to sort out waste paper, plastics and chemical fibers;
step five: carrying out magnetic separation treatment on the other part of the oversize products subjected to air separation, and carrying out vibration screening treatment on one part of the oversize products subjected to magnetic separation so as to separate out batteries and nonmetal;
step six: sending the other part of oversize products subjected to magnetic separation into an eddy current separation device for treatment so as to separate out nonmagnetic metals;
step seven: and D, performing gravity separation treatment on the residual oversize products subjected to the separation of the nonmagnetic metals in the sixth step to separate out slag stones, glass, organic matters and wood products.
2. The municipal solid waste treatment method according to claim 1, wherein: and in the fourth step, the undersize products after being screened by the roller are also subjected to air separation treatment to separate out the plastic and the chemical fibers.
3. The municipal solid waste treatment method according to claim 2, wherein: and carrying out magnetic separation treatment on the residual undersize products after air separation to separate out magnetic metals.
4. The municipal solid waste treatment method according to claim 3, wherein: and sending the other part of the undersize products after magnetic separation into an eddy current separation device for treatment so as to separate out nonmagnetic metals.
5. The municipal solid waste treatment method according to claim 4, wherein: and (4) carrying out gravity separation treatment on the residual undersize products after the nonmagnetic metal is separated out so as to screen out slag, glass, organic matters and wood products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900914.6A CN110801937A (en) | 2019-09-23 | 2019-09-23 | Urban domestic garbage treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900914.6A CN110801937A (en) | 2019-09-23 | 2019-09-23 | Urban domestic garbage treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110801937A true CN110801937A (en) | 2020-02-18 |
Family
ID=69487788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910900914.6A Pending CN110801937A (en) | 2019-09-23 | 2019-09-23 | Urban domestic garbage treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110801937A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020080577A (en) * | 2001-04-16 | 2002-10-26 | 주식회사 명현엔지니어링 | apparatus for sorting a refuse |
| CN106964638A (en) * | 2017-05-31 | 2017-07-21 | 中国葛洲坝集团绿园科技有限公司 | A kind of life refuse processing method |
| CN106994462A (en) * | 2017-04-27 | 2017-08-01 | 昆明理工大学 | A kind of new application of city life garbage handling process |
| CN109127670A (en) * | 2018-09-18 | 2019-01-04 | 中材国际环境工程（北京）有限公司 | A kind of separation system and its method for separating using cement kiln synergic processing domestic waste |
| CN110076176A (en) * | 2019-04-18 | 2019-08-02 | 广州励美环保科技有限公司 | House refuse terminal mechanization categorizing system and method |
-
2019
- 2019-09-23 CN CN201910900914.6A patent/CN110801937A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020080577A (en) * | 2001-04-16 | 2002-10-26 | 주식회사 명현엔지니어링 | apparatus for sorting a refuse |
| CN106994462A (en) * | 2017-04-27 | 2017-08-01 | 昆明理工大学 | A kind of new application of city life garbage handling process |
| CN106964638A (en) * | 2017-05-31 | 2017-07-21 | 中国葛洲坝集团绿园科技有限公司 | A kind of life refuse processing method |
| CN109127670A (en) * | 2018-09-18 | 2019-01-04 | 中材国际环境工程（北京）有限公司 | A kind of separation system and its method for separating using cement kiln synergic processing domestic waste |
| CN110076176A (en) * | 2019-04-18 | 2019-08-02 | 广州励美环保科技有限公司 | House refuse terminal mechanization categorizing system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Fatimah et al. | Industry 4.0 based sustainable circular economy approach for smart waste management system to achieve sustainable development goals: A case study of Indonesia | |
| CN106670122B (en) | Automatic identification, sorting and recycling system for household garbage | |
| CN103934251A (en) | Human household garbage disposition and recycling method | |
| CN206701754U (en) | Automatic identification for house refuse sorts recovery system | |
| CN103480633A (en) | Device and method for recycling treatment of household garbage | |
| CN1136060C (en) | Automatic garbage sorting system | |
| CN103203352A (en) | Intelligent household garbage management and treatment system | |
| CN201997485U (en) | Garbage auto-separation device | |
| CN106994462A (en) | A kind of new application of city life garbage handling process | |
| CN102191106A (en) | System for extracting rubbish derived fuel (RDF) from municipal rubbish | |
| CN107583757A (en) | A kind of garbage recovery device of construction | |
| CN110339937A (en) | A kind of waste incinerator residues processing technique | |
| CN106391665A (en) | Treatment method for solid waste | |
| CN101920260A (en) | Comprehensive treatment and utilization method for urban garbage | |
| CN203304269U (en) | Garbage classification treatment device | |
| CN208628097U (en) | Screening rubbish recovery system | |
| CN110801937A (en) | Urban domestic garbage treatment method | |
| Yang et al. | Classification technology of domestic waste from 2000 to 2019: a bibliometrics-based review | |
| CN104128351B (en) | A kind of paper mill waste preprocessing technology | |
| CN202238278U (en) | Sorting device of domestic refuse incineration ash | |
| Berechet et al. | CARBON FOOTPRINT OF WASTE MANAGEMENT IN ROMANIA IN THE CONTEXT OF CIRCULAR ECONOMY. | |
| Wagland | Waste collection, sorting, and pretreatment | |
| CN104690070A (en) | Treatment method of municipal domestic waste | |
| CN112264427A (en) | Broken system of selecting separately of major possession rubbish | |
| KR20130076990A (en) | Machine for sorting waste, device and method for rdf production with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |