CN106040697A - Household garbage slag cleaning and sorting process - Google Patents
Household garbage slag cleaning and sorting process Download PDFInfo
- Publication number
- CN106040697A CN106040697A CN201610280136.1A CN201610280136A CN106040697A CN 106040697 A CN106040697 A CN 106040697A CN 201610280136 A CN201610280136 A CN 201610280136A CN 106040697 A CN106040697 A CN 106040697A
- Authority
- CN
- China
- Prior art keywords
- slag
- house refuse
- heat exchange
- sorting process
- residue
- 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
- 239000002893 slag Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004140 cleaning Methods 0.000 title claims abstract description 13
- 239000010813 municipal solid waste Substances 0.000 title abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 238000001354 calcination Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000007885 magnetic separation Methods 0.000 claims abstract description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000005243 fluidization Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000002361 compost Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- KSSNXJHPEFVKHY-UHFFFAOYSA-N phenol;hydrate Chemical compound O.OC1=CC=CC=C1 KSSNXJHPEFVKHY-UHFFFAOYSA-N 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002918 waste heat Substances 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
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/30—Incineration ashes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a household garbage slag cleaning and sorting process. The household garbage slag cleaning and sorting process comprises the steps that unburnt materials of 500 DEG C-1500 DEG C high-temperature discharged residual slag in a household garbage heat treatment furnace are subjected to secondary sorting burning in a calcination fluidization reactor through air, gas and the low-density unburnt materials upwards flow into the household garbage heat treatment furnace, and the clean high-temperature residual slag downwards flows and is discharged into a heat exchange stock bin; iron, nickel and other magnetic metal are recycled from 30 DEG C-60 DEG C low-temperature low-carbon residual slag discharged from the lower portion of the heat exchange stock bin through a rotary magnetic separation iron removing device; and after being pulverized through a pulverizer, magnetic separation residues enter a sorting machine, and non-magnetic metal and the slag are separated and are comprehensively utilized respectively.
Description
1. technical field
The present invention provides house refuse slag to clean sorting process, belongs to field of environment protection.
2. background technology
The domestic rubbish disposal mode of countries in the world mainly has classification recovery, landfill, compost and burning, cracking gentle at present
Change.Landfill disposal need to take a large amount of soil.Meanwhile, in rubbish, oxious component will also result in serious dirt to air, soil and water source
Dye, not only breaks up ecological environment, also serious harm health；Rubbish to be sorted, to classify by compost treatment, it is desirable to rubbish
Organic content higher.And compost treatment can not minimizing, still need to take a large amount of soil.Burning, cracking and gasification process are equal
Can realize rapid volume reductionization innoxious with high temperature thoroughly, floor space is little, and can realize waste resources energy, is mesh
The front main flow direction with future life garbage disposal.
The essence burned is that organic waste is oxidized under conditions of high temperature and oxygen supply abundance gaseous inert gas thing and inorganic
Noncombustibles, to form stable solid residue.First rubbish is placed in incinerator and burns, discharge heat energy, then
Waste heat recovery can heat supply or generating；Discharge after gas cleaning.But the 10%-30% ash conversion contained in rubbish is a large amount of solid-state
When arranging outside residue, containing the most again more unburning material, abnormal smells from the patient is relatively big, and high temperature enters in water seal and then slags tap, the most both waves
Take solid residue heat energy, again can be because in slag, soluble substance dissolves the generation difficult waste water of secondary and hydration caking blocks.
House refuse cracking is technology the most newly developed, high to waste resources utilization rate, without the generation of two English, but
Oil product complicated component, utilizes difficulty big, and produces reluctant phenol water, is additionally main to be difficult to advise greatly with bed technology
Mould produces；Domestic garbage gasification is high to waste resources utilization rate, and two English generate few, but gas heating value is low, need to remove tar,
Utilize difficulty big, be main to be difficult to large-scale production with bed technology at present.It is residual that the two process there is also solid-state equally
When arranging outside slag, often contain more unburning material, and high temperature enters the phenomenon then slagged tap in water seal.
Aqueous residue carries out metal when separating with slag, the combustiblerefuse shadow such as unburnt cloth, plastic bag and long stuff
Ringing metal to separate with slag, moisture also has adverse influence to sorting, and additionally the combustible in slag has adsorbed a large amount of harmful dirt
Metachromia material, separates and collects relatively difficult.
Exploitation house refuse slag cleaning sorting process and equipment are the difficult problems that current domestic rubbish disposal is urgently to be resolved hurrily.
3. summary of the invention
The purpose of the present invention is contemplated to overcome in conventional garbage heat treatment technics present in residue discharge and sorting not
Foot and provide house refuse slag clean sorting process, the most thoroughly solve outside high temperature arrange residue combustible sorting and utilize difficulty
Topic, the again heat energy of the outer grate furnace slag of Appropriate application high temperature, the low carbonaceous residues of low temperature is easily separated into metal and slag, it is simple to reclaim
And comprehensive utilization, it is to avoid secondary difficult waste water and the generation of hydration caking clogging.
Technical scheme:
It is an object of the invention to by calcining at Air Fluidized, feed bin takes thermal and magnetic and selects and sorting, Appropriate application high-temperature hot
Can, solve the outer row of hot-engine sludge cleaning and a difficult problem for slag cleaning sorting simultaneously.It is characterized in that house refuse heat-treatment furnace
500～1500 DEG C of high temperature outside arrange residue calcining fluidized reactor in air by unburning material secondary sorting and burning, gas
Flowing upwardly into house refuse heat-treatment furnace secondary response again with low-density unburning material, the cleanest hot-engine sludge flows downward and enters
Heat exchange feed bin；The low carbonaceous residues of 30-60 DEG C of low temperature discharged from heat exchange feed bin bottom first passes through rotation magnetic separation deferrization device and reclaims
The magnetic metal such as ferrum, nickel；Magnetic separation residue enters separator after being pulverized by pulverizer, is separated with slag by nonmagnetic metal, respectively
From comprehensive utilization.
Calcining fluidized reactor optimum structure is up big and down small taper, and air is passed through from reactor lower part, and residue flows
In the best state it is in turbulent fluidized bed state.
Heat exchange feed bin is 1-15:1 with the aspect ratio of calcining fluidized reactor.
The residue flow regime of heat exchange feed bin is preferably eddy current separator preferably at moving bed state, separator.
Embodiment is described the feature of the present invention by the present invention in detail.
4. accompanying drawing explanation
Accompanying drawing is the process schematic representation of the present invention.
The drawing of accompanying drawing sets bright as follows:
1, calcining fluidized reactor 2, air access tube 3, heat exchange feed bin 4, rotary discharging valve 5, upper water-out mouth 6, under
Water inlet 7, rotate magnetic separation deferrization device 8, separator 9, house refuse heat-treatment furnace 10, pulverizer 11, tapping hole 12, non-
Magnetic metal outlet 13, slag outlet
The process characteristic of the present invention is described in detail in detail with embodiment below in conjunction with the accompanying drawings.
5. detailed description of the invention
Embodiment 1,600～1500 DEG C of hot-engine sludges of house refuse heat-treatment furnace (9) are drained into calcining fluidized reactor
(1), in, the Air Fluidized being passed through by air access tube (2), unburning material forms sorting and second-time burning, gas and low-density are unburned
Thing flows upwardly into house refuse heat-treatment furnace (9) secondary response again, and the cleanest hot-engine sludge flows downward and enters heat exchange feed bin
(3), the cooling water heat exchange entered from lower water inlet (6), upper water-out mouth (5) is discharged, residue cools to 30-60 DEG C；From heat exchange
Feed bin (3) bottom first passes through rotation magnetic separation deferrization device (7) by the low carbonaceous residues of low temperature that rotary discharging valve (4) is arranged outward and reclaims
The magnetic metal such as ferrum, nickel；Magnetic separation residue enters separator (8), by nonmagnetic metal and slag after being pulverized by pulverizer (10)
Separately, each comprehensively utilize.
Calcining fluidized reactor (1) optimum structure is up big and down small taper, and air is passed through from reactor lower part, residue stream
Dynamic in the best state it is in turbulent fluidized bed state.
Heat exchange feed bin (3) is 1-15:1 with the aspect ratio of calcining fluidized reactor (1).
The residue flow regime of heat exchange feed bin (3) is preferably eddy current separation preferably at moving bed state, separator (8)
Machine.
House refuse slag provided by the present invention cleaning sorting process, the most thoroughly solves row's residue combustible outside high temperature
Sorting and utilize a difficult problem, the heat energy of the outer grate furnace slag of Appropriate application high temperature again, low temperature low carbonaceous residues be easily separated into metal and
Slag, it is simple to reclaim and comprehensively utilize, it is to avoid secondary difficult waste water and the generation of hydration caking clogging, equipment
Volume is little, and steel consumption is low, and fixed investment is substantially reduced, and ash discharge and separating structure and process are simple, it is simple to the sorting profit of residue
With and landfill.
Claims (4)
1. house refuse slag cleaning sorting process, its technical characteristic is by 500～1500 DEG C of house refuse heat-treatment furnace high
Temperature outer row residue in calcining fluidized reactor with air by unburning material secondary sorting and burning, gas and low-density unburning material to
Upper inflow house refuse heat-treatment furnace secondary response again, the cleanest hot-engine sludge flows downward and enters heat exchange feed bin；From heat exchange
The low carbonaceous residues of 30-60 DEG C of low temperature discharged outside feed bin bottom first passes through rotation magnetic separation deferrization device and reclaims the magnetic metal such as ferrum, nickel；
Magnetic separation residue enters separator after being pulverized by pulverizer, is separated with slag by nonmagnetic metal, each comprehensively utilizes.
House refuse slag the most according to claim 1 cleaning sorting process, it is characterised in that calcining fluidized reactor is
Good structure is up big and down small taper, and air is passed through from reactor lower part, and residue flow regime is preferably at turbulent fluidized bed shape
State.
House refuse slag the most according to claim 1 cleaning sorting process, it is characterised in that the residue stream of heat exchange feed bin
Dynamic in the best state being in gas solid downflow state, separator is preferably eddy current separator.
House refuse slag the most according to claim 1 cleaning sorting process, it is characterised in that heat exchange feed bin and calcining stream
The aspect ratio changing reactor is 1-15:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280136.1A CN106040697A (en) | 2016-04-29 | 2016-04-29 | Household garbage slag cleaning and sorting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280136.1A CN106040697A (en) | 2016-04-29 | 2016-04-29 | Household garbage slag cleaning and sorting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106040697A true CN106040697A (en) | 2016-10-26 |
Family
ID=57176707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610280136.1A Pending CN106040697A (en) | 2016-04-29 | 2016-04-29 | Household garbage slag cleaning and sorting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106040697A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759419A (en) * | 2018-12-27 | 2019-05-17 | 江苏道亚环境科技有限公司 | A kind of clinker dry type automatic sorting method |
| CN113578921A (en) * | 2021-07-23 | 2021-11-02 | 四川广铭建设工程设计有限公司 | High-temperature thermal cracking process for municipal domestic waste |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112662A (en) * | 1994-03-10 | 1995-11-29 | 株式会社荏原制作所 | Method of and apparatus for fluidized-bed gasification and melt combustion |
| JP2001349520A (en) * | 2000-06-07 | 2001-12-21 | Nkk Corp | Incinerator for general wastes and operating method therefor |
| JP2004183912A (en) * | 2002-11-29 | 2004-07-02 | Taiheiyo Cement Corp | Waste incineration plant and waste incineration method |
| CN1712777A (en) * | 2004-06-22 | 2005-12-28 | 张维田 | Refuse combustion and step-by-step combustion system of furnace vehicle |
| CN101564731A (en) * | 2009-05-20 | 2009-10-28 | 河南科技大学 | Innocent treatment device for waste incineration flying ash |
| CN103406329A (en) * | 2013-07-05 | 2013-11-27 | 广东环兴环保节能科技有限公司 | Method for comprehensively treating and utilizing household garbage incineration slag |
| CN105180175A (en) * | 2015-08-20 | 2015-12-23 | 东莞玖龙纸业有限公司 | Slag discharging system and slag discharging method of fluidized bed waste incinerators |
-
2016
- 2016-04-29 CN CN201610280136.1A patent/CN106040697A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112662A (en) * | 1994-03-10 | 1995-11-29 | 株式会社荏原制作所 | Method of and apparatus for fluidized-bed gasification and melt combustion |
| JP2001349520A (en) * | 2000-06-07 | 2001-12-21 | Nkk Corp | Incinerator for general wastes and operating method therefor |
| JP2004183912A (en) * | 2002-11-29 | 2004-07-02 | Taiheiyo Cement Corp | Waste incineration plant and waste incineration method |
| CN1712777A (en) * | 2004-06-22 | 2005-12-28 | 张维田 | Refuse combustion and step-by-step combustion system of furnace vehicle |
| CN101564731A (en) * | 2009-05-20 | 2009-10-28 | 河南科技大学 | Innocent treatment device for waste incineration flying ash |
| CN103406329A (en) * | 2013-07-05 | 2013-11-27 | 广东环兴环保节能科技有限公司 | Method for comprehensively treating and utilizing household garbage incineration slag |
| CN105180175A (en) * | 2015-08-20 | 2015-12-23 | 东莞玖龙纸业有限公司 | Slag discharging system and slag discharging method of fluidized bed waste incinerators |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759419A (en) * | 2018-12-27 | 2019-05-17 | 江苏道亚环境科技有限公司 | A kind of clinker dry type automatic sorting method |
| CN113578921A (en) * | 2021-07-23 | 2021-11-02 | 四川广铭建设工程设计有限公司 | High-temperature thermal cracking process for municipal domestic waste |
| CN113578921B (en) * | 2021-07-23 | 2023-12-26 | 四川广铭建设集团有限公司 | High-temperature pyrolysis process for municipal domestic waste |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |