CN106040699B - Aging rubbish preprocess method - Google Patents
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- CN106040699B CN106040699B CN201610366093.9A CN201610366093A CN106040699B CN 106040699 B CN106040699 B CN 106040699B CN 201610366093 A CN201610366093 A CN 201610366093A CN 106040699 B CN106040699 B CN 106040699B
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 title claims abstract description 52
- 230000032683 aging Effects 0.000 title claims abstract description 38
- 238000012216 screening Methods 0.000 claims abstract description 44
- 239000002689 soil Substances 0.000 claims abstract description 17
- 239000004575 stone Substances 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000006148 magnetic separator Substances 0.000 claims abstract description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 239000002985 plastic film Substances 0.000 claims description 11
- 229920006255 plastic film Polymers 0.000 claims description 11
- 230000005484 gravity Effects 0.000 claims description 6
- 238000007885 magnetic separation Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 9
- 238000012545 processing Methods 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 2
- 239000010791 domestic waste Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010782 bulky waste Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of aging rubbish preprocess methods, are excavated, and be transported to comprehensive garbage disposal factory with enclosed garbage transport vehicle, are deposited at apron feeder feeding to aging rubbish with excavator；Load wagon is transported to rubbish on apron feeder, gives rod oversize through belt conveyor by apron feeder；First time screening is carried out to rubbish using bar screen, isolates the rubbish of three kinds of different densities or size；Screenings after bar screen screening sub-elects ferrous metal through magnetic separator；Bar screen screenings enters rotary screen, isolates the rubbish of three kinds of different densities or size；Rotary screen oversize enters selection by winnowing；Stone is sorted out from bar screen oversize；Inertial-garbage is broken and combustible rubbish is broken.In implementation process, whole totally-enclosed operation of pretreating process line.Realize " minimizing, recycling, innoxious " of aging rubbish, solve secondary pollution and security risk that refuse landfill is especially informal landfill yard, it realizes the recycling of refuse landfill or to vacate soil otherwise utilized, entire pretreating process carries out closed operation, without secondary pollution.
Description
Technical field
The present invention relates to a kind of Ordinary solid waste domestic waste preconditioning technique more particularly to a kind of aging rubbish
Preprocess method.
Background technique
Landfill yard rubbish is also known as mineralized waste, refers to and fills for many years in landfill yard, basically reaches stabilisation, can carry out
Exploit the rubbish utilized.The main component of rubbish includes: stable inertial-garbage (stone, glass etc.), and bio-refractory has
Machine object (rubber, plastic film etc.), a small amount of metal, remaining major part is fertile soil.Since the 1970s China by
The method for gradually starting to dispose using land-fill method as urban garbage disposal.Present landfill method is still that China disposition city is raw
The major way of rubbish living.It is counted according to urban garbage disposal situation in 2013, it is raw to handle disposition city using landfill method
Rubbish living accounts for the 60.61% of whole refuse collection amounts, and there are also 11% to stack and simple disposition.The built bulky refuse in China
Landfill yard more, the up to ten million tons of rubbish are inserted, the city in the whole nation 2/3 is surrounded by rubbish, and 1/4 city is forced rubbish and turns to rural area
It moves.
The several outstanding problems faced using landfill method processing domestic waste:
(1) quantity of refuse is increasing every year, and the area of required landfill yard is increasing, growing quantity of refuse with it is in short supply
Land resource contradiction it is increasingly prominent；
(2) city is constantly expanded to periphery suburb, and refuse landfill addressing is more and more difficult, and many refuse landfills all exist
Overload operation, as Guangzhou Xing Feng, design treatment ability 2000-4500t/d, actual treatment ability 6000-8000t/d are super negative
Lotus 200%；Mono- phase of Shanghai Lao Gang excess load 33%, there are also the garbage loading embeadings such as Beijing Gao Antun, Beijing A Suwei, Wuhan Chen Jiachong
Field is all in overload operation；These result in the problem of storage capacity consumes rapidly and faces closing；
(3) after China the 1970s, a large amount of refuse landfills of especially middle and later periods eighties construction have been arrived
Reach or will reach service life.Problem urgent need to resolve is built again and recycled to landfill yard；
(4) there are a considerable number of non-normal refuse landfills for surrounding city.These landfill yards are built along topography,
Regular Anti-seeping technology and landfill disposal are not done, antifouling capacity is weak, all causes to underground water, soil, atmosphere, surrounding enviroment
Secondary pollution, and occupy a large amount of land resource.
Summary of the invention
The object of the present invention is to provide a kind of minimizing, recycling, innoxious aging rubbish preprocess methods.
The purpose of the present invention is what is be achieved through the following technical solutions:
Aging rubbish preprocess method of the invention, comprising steps of
The first step is excavated: being excavated with excavator to aging rubbish, and it is comprehensive with enclosed garbage transport vehicle to be transported to rubbish
Treatment plant is closed, is deposited at apron feeder feeding；
Second step, feeding: load wagon is transported to rubbish on apron feeder, by apron feeder through belt conveyor to stick
Oversize；
Pre-screening: third step carries out first time screening to rubbish using bar screen, isolates three kinds of different densities or size
Rubbish；
4th step, magnetic separation: the screenings after bar screen screening sub-elects ferrous metal through magnetic separator；
5th step, the screening of rotary screen multistage: bar screen screenings enters rotary screen, isolates three kinds of different densities or size
Rubbish；
6th step, selection by winnowing: rotary screen oversize enters selection by winnowing；
Artificial separation: 7th step sorts out stone from bar screen oversize；
8th step, inertial-garbage are broken；
9th step, combustible rubbish are broken: including plastic film class and rubber refuse breaking；
Above-mentioned steps are in implementation process, whole totally-enclosed operation of pretreating process line.
As seen from the above technical solution provided by the invention, aging rubbish pretreatment side provided in an embodiment of the present invention
Method realizes " minimizing, recycling, innoxious " of aging rubbish using aging rubbish as raw material, solves refuse landfill and is especially
The secondary pollution and security risk of informal landfill yard realize the recycling of refuse landfill or to vacate soil otherwise utilized.
Entire pretreating process carries out closed operation, without secondary pollution.
Detailed description of the invention
Fig. 1 is the equipment arrangement schematic diagram of aging rubbish preprocess method provided in an embodiment of the present invention.
Fig. 2 is the process flow chart of aging rubbish preprocess method provided in an embodiment of the present invention.
In figure:
1, apron feeder, 2, bar screen, 3, magnetic separator, 4, rotary screen, 5, winnowing machine, 6, flexible refuse grinder, 7,
Artificial separation platform, 8, inertial-garbage crusher.
Specific embodiment
The embodiment of the present invention will be described in further detail below.
Aging rubbish preprocess method of the invention, preferable specific embodiment is:
Comprising steps of
The first step is excavated: being excavated with excavator to aging rubbish, and it is comprehensive with enclosed garbage transport vehicle to be transported to rubbish
Treatment plant is closed, is deposited at apron feeder feeding；
Second step, feeding: load wagon is transported to rubbish on apron feeder, by apron feeder through belt conveyor to stick
Oversize；
Pre-screening: third step carries out first time screening to rubbish using bar screen, isolates three kinds of different densities or size
Rubbish；
4th step, magnetic separation: the screenings after bar screen screening sub-elects ferrous metal through magnetic separator；
5th step, the screening of rotary screen multistage: bar screen screenings enters rotary screen, isolates three kinds of different densities or size
Rubbish；
6th step, selection by winnowing: rotary screen oversize enters selection by winnowing；
Artificial separation: 7th step sorts out stone from bar screen oversize；
8th step, inertial-garbage are broken；
9th step, combustible rubbish are broken: including plastic film class and rubber refuse breaking；
Above-mentioned steps are in implementation process, whole totally-enclosed operation of pretreating process line.
The screen slot width of the bar screen is 150mm, and the rubbish for screening out three kinds of different sizes and density includes on two kinds of sieves
Object and a kind of screenings, the oversize are the inertial-garbage and lightweight combustible rubbish that geometric dimension is greater than 150mm, utilize rubbish
Rubbish specific gravity and between bar screen frictional force difference, when rubbish run to bar screen lower end outlet when, generate different projectiles
The separation of velocity interpolation inertial-garbage and combustible rubbish, the screenings are the rubbish that geometric dimension is less than 150mm, the sieve
Lower object includes the combustible rubbish of fertile soil, inertial-garbage and high heating value；
The 4th step magnetic separation is arranged in front of different steps according to the actual conditions of aging rubbish Metal Distribution or it
Afterwards.
The roller sieves two sections of screenings, and the screenings of bar screen sifts out the rubbish of 3 kinds of different sizes or density into rotary screen
Rubbish includes:
Rotary screen leading portion mesh size 30mm, screenings is fertile soil；
Rotary screen back segment mesh size 40mm, screenings are mainly stone class inertial-garbage；
Rotary screen oversize is mainly plastic film, rubber combustible rubbish and inertial-garbage.
The rotary screen back segment oversize enters winnowing machine selection by winnowing, according to the difference of rubbish specific gravity and partial size, isolates lazy
Property rubbish and plastic film lightweight class combustible rubbish.
Sorting personnel sort out the stone infiltrated from bar screen lightweight class oversize.
The stone that the inertial-garbage of inertial-garbage, bar screen oversize that selection by winnowing goes out and manual sorting go out is into dedicated hard object
Matter class refuse breaking crusher machine, the partial size of rubbish is used as ground based filler in 40mm or so after being crushed.
The plastic film class rubbish that winnowing machine is selected and the bar screen oversize lightweight class combustible rubbish after artificial separation
Rubbish enters another dedicated light materials class and is crushed crusher machine, and combustible rubbish is crushed to 80mm or so and enters subsequent pyrolysis work
Skill.
Aging rubbish preprocess method of the invention realizes " minimizing, money of aging rubbish using aging rubbish as raw material
It is source, innoxious ", secondary pollution and security risk that refuse landfill is especially informal landfill yard are solved, realizes that rubbish is filled out
It buries the recycling of field or to vacate soil otherwise utilized.Entire pretreating process carries out closed operation, without secondary pollution.
In above-mentioned aging rubbish preprocess method, in implementation process additional seal closure is installed to processing equipment, between equipment
Belt conveyor also encrypt sealing cover, closed sorting room is arranged in artificial separation platform.
Broken combustible enters pyrolysis system pyrolytic gasification, and it is fuel-displaced gentle to separate.
The beneficial effect that the present invention compares the prior art is:
1. aging rubbish preprocess method provided by the invention, the pretreatment work combined using " machinery+artificial separation "
Skill, the process route is brief, and investment, operating cost are smaller, and operation, maintenance cost are lower.The closed operation of pretreating process line, has
Effect prevents and reduces secondary pollution.
2. aging rubbish preprocess method provided by the invention, the selection of process system equipment main technologic parameters is reasonable,
Every one of technique all provides good sorting basis for subsequent technique.
3. aging rubbish preprocess method provided by the invention, by the main component in rubbish: inertial-garbage, combustible,
Fertile soil and metal are separated, and are improved the efficiency of separation of rubbish and are recycled efficiency.Realize aging garbage decrement, resource
Change and innoxious, and provides guarantee for subsequent comprehensive garbage disposal and recycling.Solve garbage-surrounded city, atmosphere pollution,
The problems such as underground water pollution, land seizure, is conducive to social need-oriented or reuse.
Specific embodiment:
Refer to attached drawing 1 and attached drawing 2, a kind of aging rubbish preprocess method provided by the invention, including following processing step
It is rapid:
The first step is excavated.Aging rubbish is excavated, aging rubbish is transported to rubbish synthesis with closed cram packer
Treatment stations are deposited at apron feeder feeding；
Second step, feeding.Rubbish constantly on apron feeder, is sent into rubbish by belt conveyor by load wagon
Bar screen carries out first time screening；
Third step, pre-screening.Difference using bar screen oversize specific gravity and with sieve plate frictional force, when oversize is transported to stick
When bar grizzl(e)y lower end, different ejection velocities is generated, the different rubbish of two kinds of specific gravity drops down onto the different distance in bar screen lower end respectively
Place, oversize light materials class are fallen on the closer artificial separation platform belt conveyor of bar screen, the inertial-garbage of bulk
Belt conveyor is then crossed with faster speed and drops into bar screen front end inertial-garbage material pit；Bar screen screenings is by screenings
Splicing belt is transported on an other belt conveyor being connected with rotary screen；
4th step, magnetic separation.Magnetic separator is suspended on the top for the belt conveyor that bar screen is connected with rotary screen, when rubbish from
When passing through below magnetic separator, ferrous metal can be sub-elected；
5th step, rotary screen screening.Roller sieves two sections of screenings, leading portion mesh size 30mm, back segment mesh size 40mm.Leading portion
Screenings is fertile soil, is sent by belt conveyor to fertile soil windrow, and afforestation is used as.Back segment screenings is inertia rubbish
Rubbish, mostly sandstone are used as ground based filler, are transported to sandstone windrow by belt conveyor.Oversize be inertial-garbage and combustible,
Winnowing machine is transported to by belt conveyor；
6th step, selection by winnowing.Rotary screen back segment oversize is real according to the difference of rubbish specific gravity and partial size into winnowing machine selection by winnowing
The separation of existing plastic film class and inertial-garbage；
7th step, manual sorting.Bar screen oversize light materials class rubbish enters artificial separation platform, by manually dividing
Choosing, sorts out the stone infiltrated, is transported to inertial-garbage material pit by belt conveyor；
8th step, inertial-garbage are broken.Stone that manual sorting goes out, weight density waste passes through belt conveyor fortune after selection by winnowing
To rubbish material pit Convergency fracturing, it is crushed to 40mm or so, broken inertial-garbage does ground based filler.
9th step, combustible garbage are broken.Bar screen oversize light materials class rubbish selects after manual sorting with winnowing machine
Light materials class rubbish out is sent into dedicated light materials by belt conveyor and is crushed crusher machine, is crushed to 100mm or so, after being crushed
Combustible enter subsequent pyrolytic process.
Using aging rubbish preprocess method of the invention, it is successfully separated out fertile soil, inertial-garbage, combustible and gold
Belong to.Fertile soil is used as afforestation or improvement soil, and inertial-garbage is used as pyrolysis feed, metal as ground based filler, combustible
Directly recycle.The pretreating process realizes garbage decrement, recycling and innoxious, while solving land seizure and asking
Topic, is conducive to the recycling and reuse in soil, improves the utilization efficiency in soil.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (7)
1. a kind of aging rubbish preprocess method, which is characterized in that comprising steps of
The first step is excavated: being excavated with excavator to aging rubbish, and be transported to rubbish General Office with enclosed garbage transport vehicle
Factory is managed, is deposited at apron feeder feeding；
Second step, feeding: load wagon is transported to rubbish on apron feeder, by apron feeder through belt conveyor to bar screen
Feeding；
Pre-screening: third step carries out first time screening to rubbish using bar screen, isolates the rubbish of three kinds of different densities or size
Rubbish；
4th step, magnetic separation: the screenings after bar screen screening sub-elects ferrous metal through magnetic separator；
5th step, the screening of rotary screen multistage: bar screen screenings enters rotary screen, isolates the rubbish of three kinds of different densities or size
Rubbish；
6th step, selection by winnowing: rotary screen oversize enters winnowing machine；
Artificial separation: 7th step sorts out stone class inertial-garbage from bar screen oversize；
8th step, inertial-garbage are broken；
9th step, combustible rubbish are broken: including plastic film class and rubber refuse breaking；
Above-mentioned steps are in implementation process, whole totally-enclosed operation of pretreating process line；
The screen slot width of the bar screen is 150mm, screen out three kinds of different sizes and density rubbish include two kinds of oversizes and
A kind of screenings, the oversize are the inertial-garbage and lightweight combustible rubbish that geometric dimension is greater than 150mm, utilize rubbish ratio
Heavy and the frictional force between bar screen difference generates different ejection velocities when rubbish runs to the outlet of bar screen lower end
Realize the separation of inertial-garbage and combustible rubbish, the screenings is the rubbish that geometric dimension is less than 150mm, the screenings
Combustible rubbish including fertile soil, inertial-garbage and high heating value.
2. aging rubbish preprocess method according to claim 1, which is characterized in that the 4th step magnetic separation is according to aging
The actual conditions of rubbish Metal Distribution are arranged in front of or after different steps.
3. aging rubbish preprocess method according to claim 1, which is characterized in that the roller sieves two sections of screenings,
Into rotary screen, the rubbish for sifting out 3 kinds of different sizes or density includes: the screenings of bar screen
Rotary screen leading portion mesh size 30mm, screenings is fertile soil；
Rotary screen back segment mesh size 40mm, screenings are mainly stone class inertial-garbage；
Rotary screen oversize is mainly plastic film, rubber combustible rubbish and inertial-garbage.
4. aging rubbish preprocess method according to claim 3, which is characterized in that the rotary screen back segment oversize into
Enter winnowing machine selection by winnowing, according to the difference of rubbish specific gravity and partial size, isolates inertial-garbage and plastic film lightweight class combustible rubbish
Rubbish.
5. aging rubbish preprocess method according to claim 1, which is characterized in that sort personnel from bar screen lightweight class
The stone infiltrated is sorted out in oversize.
6. aging rubbish preprocess method according to any one of claims 1 to 5, which is characterized in that the inertia that selection by winnowing goes out
The stone that rubbish, the inertial-garbage of bar screen oversize and manual sorting go out into dedicated hard material class refuse breaking crusher machine,
The partial size of rubbish is used as ground based filler in 40mm or so after broken.
7. aging rubbish preprocess method according to any one of claims 1 to 5, which is characterized in that winnowing machine was selected
Plastic film class rubbish and the bar screen oversize lightweight class combustible rubbish after artificial separation enter another dedicated light
Material class is crushed crusher machine, and combustible rubbish is crushed to 80mm or so and enters subsequent pyrolytic process.
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| CN104907152A (en) * | 2015-06-17 | 2015-09-16 | 中能润达环境工程有限公司 | Treating system for land reclamation of refuse landfill site and treating method |
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