CN107120663B - A kind of organic contamination soil and solid waste combination treatment method - Google Patents
A kind of organic contamination soil and solid waste combination treatment method Download PDFInfo
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- CN107120663B CN107120663B CN201710260164.1A CN201710260164A CN107120663B CN 107120663 B CN107120663 B CN 107120663B CN 201710260164 A CN201710260164 A CN 201710260164A CN 107120663 B CN107120663 B CN 107120663B
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- 239000002689 soil Substances 0.000 title claims abstract description 53
- 239000002910 solid waste Substances 0.000 title claims abstract description 45
- 238000011109 contamination Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000011284 combination treatment Methods 0.000 title claims abstract description 12
- 239000004568 cement Substances 0.000 claims abstract description 46
- 238000012545 processing Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000007873 sieving Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 63
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 238000004079 fireproofing Methods 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 8
- 235000012054 meals Nutrition 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000003672 processing method Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 239000010813 municipal solid waste Substances 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 3
- 239000010791 domestic waste Substances 0.000 abstract description 3
- 239000010802 sludge Substances 0.000 abstract description 3
- 238000004056 waste incineration Methods 0.000 abstract description 2
- 239000011449 brick Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 5
- 238000003900 soil pollution Methods 0.000 description 4
- 241000406668 Loxodonta cyclotis Species 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- 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
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
- B09C1/065—Reclamation of contaminated soil thermally by pyrolysis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of organic contamination soil and solid waste combination treatment method, processing unit includes the first rotary furnace, vertical incinerator, the second rotary furnace；Solid waste is added from the top of the first rotary furnace, introduces low temperature exhaust gas from bottom and is used for drying solid waste；It will be delivered in vertical incinerator by dry solid waste, introduce cement kiln smoke-box tail gas, cement kiln tertiary air into incinerator respectively, and be added by raw material part；The second rotary furnace will be inputted from top after the sieving of organic contamination soil；The tail gas that vertical incinerator generates is delivered in the second rotary furnace and carries out heat exchange with organic contamination soil, the exhaust gas of generation is discharged by air-introduced machine.This method combines organic polluted soil with solid waste such as domestic waste, sludge, aging rubbish, it not only can use the thermal energy during solid waste incineration, treated, and contaminated soil can also produce building materials, achieve the purpose that while handling soil and solid waste, reduces the cost individually handled.
Description
Technical field
The present invention relates to solid waste recycling field, in particular for organic polluted soil and domestic waste,
The solid waste joint processing technologies such as sludge, aging rubbish, hazardous waste.
Background technique
Soil is material base for the survival of mankind, is an important part of the human ecological environment.With industrial or agricultural
Development and urbanization process expansion, agriculturally being widely used of fertilizer and pesticide, poisonous and harmful substance is invaded in industrial wastewater
Farmland, solid waste stack the leakage etc. for filling caused poisonous and harmful substance, and various pollutants matter is made to exist by different approaches
It is constantly accumulated in soil, purification capacity of soil day hastens towards saturation, and soil quality is decreased obviously, and China's soil pollution situation has started pair
Sustainable Use of Soil Resources constitutes a threat to agricultural product ecological safety.According to statistics, the whole nation is by organic pollutant (pesticide, petroleum
Hydrocarbon and PAHs) pollution farmland up to 3.6 × 107hm2, these contaminated sites show that type is more, pollution sources are complicated, harm is wide
The features such as, the grain that loses every year by soil pollution of the whole nation is up to 1.2 × 1010kg.Soil pollution does not only result in quality of agricultural product
Decline, is detrimental to health, also results in atmosphere and water body environment pollution.Soil pollution have typical time bomb property, one
Denier large area outburst, it will influence difficult to the appraisal is caused on national sustainable development, therefore, how rationally to dispose contaminated soil
At being an urgent problem to be solved currently, it is very urgent to carry out the research of contaminated soil disposal technology.The recovery technique of contaminated soil is ground
Study carefully the emphasis for becoming countries in the world research, also an important topic and research direction of the China in environment protection field.
At present mainly there is the processing technique of POPs Polluted Soil in the country: Thermal desorption technology, high-level oxidation technology and biology
Extracting, biological prosthetic etc..But each technology has certain limitation, and the atmosphere pollution after Thermal desorption can not be ignored.Therefore, originally
Invention reaches a variety of organic contaminations by the way of by Polluted Soil and solid waste Combined Treatment for POPs contaminated soil
The purpose that object is handled simultaneously.
Summary of the invention
Handling organic polluted soil simultaneously the technical problem to be solved in the present invention is to provide one kind (includes: polycyclic aromatic hydrocarbon, stone
The multiple pollutants such as petroleum hydrocarbon, organic agricultural chemicals) with the method for solid waste.The present invention by following scheme to organic contamination soil into
Row processing:
A kind of organic contamination soil and solid waste combination treatment method, processing unit packet used in the processing method
Include the first rotary furnace, the vertical incinerator connecting with the tapping channel of the first rotary furnace, the exhaust passage company with vertical incinerator
The second rotary furnace connect；The bottom of first rotary furnace is provided with low temperature exhaust gas import, and the top of the first rotary furnace is equipped with solid
Body waste import；Cement kiln smoke-box inlet exhaust gas, vertical incinerator are equipped at the lower part 1/6~1/8 of the vertical incinerator
Lower part 1/2~1/3 at be equipped with cement kiln wind inlet three times, be equipped at the lower part 1/9~1/10 of vertical incinerator hot raw material into
Mouthful, the bottom of vertical incinerator is exported equipped with raw material；The top of second rotary furnace is equipped with Polluted Soil import, the second rotary furnace
Bottom be equipped with slag-drip opening, the side wall of the second rotary furnace is equipped with outlet port；It the treating method comprises following steps:
A, solid waste is added from the top of the first rotary furnace, introduces low temperature exhaust gas from the bottom of the first rotary furnace and is used for
The dry solid waste, the introducing temperature of the low temperature exhaust gas is 100~300 DEG C, air quantity is 20000~50000Nm3/
H, the revolving speed of the first rotary furnace are 10~30r/h, and drying time is 30~60 minutes；
B, it will be delivered in vertical incinerator by dry solid waste, introduce cement kiln cigarette into incinerator respectively
Room tail gas, cement kiln tertiary air, and 600~800 DEG C of the raw material from cement kiln precalcining system level V preheater are added
Powder；The cement kiln smoke-box exhaust temperature of introducing be 1000~1200 DEG C, cement kiln smoke-box tail gas air quantity be 10000~
30000Nm3/ h, cement kiln smoke-box tail gas oxygen content are 2%~4%；Air temperature is 700~900 DEG C to the cement kiln of introducing three times,
Cement kiln tertiary air air quantity is 20000~50000Nm3/ h, cement kiln tertiary air oxygen content are 18%~21%；
C, organic contamination soil is crossed into 15~80mm rotary screen, screenings inputs the second rotary furnace from top；By vertical burning
The tail gas that furnace generates, which is delivered in the second rotary furnace, carries out heat exchange with organic contamination soil, and the revolving speed of the second rotary furnace is 10~
30r/h, the exhaust gas generated in the second rotary furnace pass through air-introduced machine discharge from the second revolution furnace sidewall discharge, exhaust gas.
Further, the tail gas or tail gas or kiln after cogeneration that the low temperature exhaust gas is cement plant grate-cooler low-temperature zone
The tail gas that last row is put.
Further, the exhaust gas that air-introduced machine is drawn respectively enters ozone+Ultraviolet Oxidation equipment, 1~5%NaOH solution absorbs
After be incorporated to cement kiln end bag dust arrester installation, qualified discharge after processing.
Further, first rotary furnace is steel structure, and liner fire proofing material, draw ratio is 10~15:1, inclination
Angle is 3~5 °.
Further, second rotary furnace is steel structure, and liner fire proofing material, draw ratio is 3~5:1, inclination angle
Degree is 1~3 °.
Further, the solid waste is delivered in the first rotary furnace by helix transporting device.
Further, the screenings after the sieving of organic contamination soil is delivered in the second rotary furnace by helix transporting device.
Beneficial effects of the present invention:
This method utilizes incinerator for solid rubbish, by organic polluted soil and domestic waste, sludge, aging rubbish
The solid waste such as rubbish, hazardous waste combine, and not only can use the thermal energy during solid waste incineration, after gained processing
Contaminated soil can also produce building materials, achieve the purpose that while handling soil and solid waste, substantially reduce and individually handle
Cost.
Invention is described in detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 present invention process flow diagram.
Specific embodiment
As shown in Figure 1, a kind of organic contamination soil and solid waste combination treatment method, used in the processing method
Processing unit includes the first rotary furnace, the vertical incinerator connecting with the tapping channel of the first rotary furnace and vertical incinerator
Second rotary furnace of exhaust passage (top of tertiary air entrance) connection；The bottom of first rotary furnace is provided with low temperature exhaust gas
The top of import, the first rotary furnace is equipped with solid waste import；Water is equipped at the lower part 1/6~1/8 of the vertical incinerator
Stall smoke-box inlet exhaust gas is equipped with cement kiln wind inlet three times at the lower part 1/2~1/3 of vertical incinerator, vertical incinerator
Hot raw meal inlet is equipped at lower part 1/9~1/10, the bottom of vertical incinerator is exported equipped with raw material；The top of second rotary furnace
End is equipped with Polluted Soil import, and the bottom of the second rotary furnace is equipped with slag-drip opening, and the side wall of the second rotary furnace is equipped with outlet port；Institute
State processing method the following steps are included:
A, solid waste is added from the top of the first rotary furnace, introduces low temperature exhaust gas from the bottom of the first rotary furnace and is used for
The dry solid waste, the introducing temperature of the low temperature exhaust gas is 100~300 DEG C, air quantity is 20000~50000Nm3/
H, the revolving speed of the first rotary furnace are 10~30r/h, and drying time is 30~60 minutes；The low temperature exhaust gas is cement plant grate-cooler
The tail gas of low-temperature zone or the tail gas after cogeneration or kiln tail discharged tail gas；
B, it will be delivered in vertical incinerator by dry solid waste, introduce cement kiln cigarette into incinerator respectively
Room tail gas, cement kiln tertiary air, and hot raw material are added (has the elephant trunk of refractory material that will come from cement kiln predecomposition using inside block
The 10~20% of the total amount of 600~800 degree of raw meal powders of system level V preheater introduce vertical incinerator lower part 1/9~1/10
Place)；The cement kiln smoke-box exhaust temperature of introducing be 1000~1200 DEG C, cement kiln smoke-box tail gas air quantity be 10000~
30000Nm3/ h, cement kiln smoke-box tail gas oxygen content are 2%~4%；Air temperature is 700~900 DEG C to the cement kiln of introducing three times,
Cement kiln tertiary air air quantity is 20000~50000Nm3/ h, cement kiln tertiary air oxygen content are 18%~21%；Cement kiln smoke-box
Tail gas due to oxygen content it is low, pyrolysis is played to the solid waste after drying；Tertiary air oxygen content is high, plays the role of dual firing chamber,
So that solid waste full combustion, hot raw material play the role of fluidized bed, prevent the heat molten types material such as plastics in solid waste bonding, frame
Bridge.
C, organic contamination soil is crossed into 15~80mm rotary screen, screenings inputs the second rotary furnace from top；By vertical burning
The tail gas that furnace generates, which is delivered in the second rotary furnace, carries out heat exchange with organic contamination soil, and the revolving speed of the second rotary furnace is 10~
30r/h, the exhaust gas generated in vertical incinerator pass through air-introduced machine discharge from furnace sidewall discharge, exhaust gas is burned.
D, the exhaust gas that air-introduced machine is drawn respectively enters ozone+Ultraviolet Oxidation equipment, 1~5%NaOH solution is incorporated to after absorbing
Cement kiln end bag dust arrester installation, qualified discharge after processing.Its activity of treated Polluted Soil is high, can be used as non-burning brick, permeable
The building materials ingredient such as brick uses, and additive amount can reach 30% or more.First rotary furnace is steel structure, liner fire proofing material, major diameter
Than for 10~15:1, tilt angle is 3~5 °.Second rotary furnace is steel structure, and liner fire proofing material, draw ratio is 3~5:
1, tilt angle is 1~3 °.Solid waste is delivered in the first rotary furnace by helix transporting device.The sieving of organic contamination soil
Screenings afterwards is delivered in the second rotary furnace by helix transporting device.
Embodiment 1
The tail gas part of cement plant grate-cooler low-temperature zone is introduced into the first rotary furnace bottom end, the first rotary furnace draw ratio is
10:1, tilt angle are 3 °, steel structure, liner fire proofing material, and the exhaust temperature of extraction is 180 DEG C, air quantity 20000Nm3/
H, solid waste are added above the first rotary furnace by helical feed.The revolving speed for keeping the first rotary furnace is 10r/h, when dry materials
Between be 30 minutes；It will be sent into vertical incinerator by dry solid waste by spiral.There is the resistance to of refractory material using inside block
High temperature air hose draws part of cement kiln smoke-box tail gas and part tertiary air, and cement kiln smoke-box tail gas is sent into vertical incinerator lower part
At 1/7, the technological parameter of tail gas are as follows: temperature is 1000 DEG C, air quantity 15000Nm3/ h, oxygen content 2%；Tertiary air is sent into vertical
At formula incinerator lower part 1/2, technological parameter are as follows: temperature is 700 DEG C, air quantity 20000Nm3/ h, oxygen content 20%.Separately
Outside, there is the elephant trunk of refractory material will be from 700 DEG C of raw meal powder total amounts of precalcining system level V preheater using inside block
15% introduces at vertical incinerator lower part 1/9.In one the second rotary furnace of the rear end of vertical incinerator series connection.Second revolution furnace superintendent
Diameter ratio is 3:1, and tilt angle is 2 °, and the second rotary furnace is steel structure, liner fire proofing material.Organic contamination soil is crossed into 20mm rolling
Shaft screen, screenings are transported to the second rotary furnace top using screw conveyor.The tail gas that vertical incinerator is generated is sent into second
Rotary furnace, the approach axis of incineration tail gas and the discharge direction of exhaust gas (flue gas) are in the same direction.The revolving speed for keeping the second rotary furnace is
Exhaust gas after 10r/h, with Polluted Soil heat exchange is discharged from air-introduced machine；The gas feeding that air-introduced machine is drawn is respectively enterd into ozone+purple
External oxidation equipment, 1%NaOH solution are incorporated to cement kiln end bag dust arrester installation, qualified discharge after processing after absorbing.It is treated
Polluted Soil prepares non-burning brick, additive amount 45%.The compound national standard of the brick produced.
Embodiment 2
Carry out burning the improvement of parameter again on the basis of embodiment 1.
It will be sent into vertical incinerator by dry solid waste by spiral.There is the high temperature resistant of refractory material using internal block
Air hose draws part of cement kiln smoke-box tail gas and part tertiary air, and cement kiln smoke-box tail gas is sent into vertical incinerator lower part 1/8
Place, the technological parameter of tail gas are as follows: temperature is 1200 DEG C, air quantity 30000Nm3/ h, oxygen content 2.5%；Tertiary air is sent into vertical
At formula incinerator lower part 1/3, technological parameter are as follows: temperature is 700 DEG C, air quantity 30000Nm3/ h, oxygen content 20%.Separately
Outside, the elephant trunk of refractory material draws the 20% of 800 DEG C of raw meal powder total amounts of precalcining system level V preheater using inside block
Enter at vertical incinerator lower part 1/9.In one the second rotary furnace of the rear end of vertical incinerator series connection.Second rotary furnace draw ratio is
4:1, tilt angle are 2.5 °, and the second rotary furnace is steel structure, liner fire proofing material.Organic contamination soil is crossed into 15mm roller
Sieve, screenings are transported to the second rotary furnace top using screw conveyor.The tail gas that vertical incinerator is generated is sent into second time
Converter, the approach axis of incineration tail gas and the discharge direction of exhaust gas are in the same direction.The revolving speed for keeping the second rotary furnace is 15r/h, with
Exhaust gas after Polluted Soil heat exchange is discharged from air-introduced machine；The gas feeding that air-introduced machine is drawn is respectively enterd ozone+Ultraviolet Oxidation to set
Standby, 1.5%NaOH solution is incorporated to cement kiln end bag dust arrester installation, qualified discharge after processing after absorbing.Treated Polluted Soil
Prepare non-burning brick, additive amount 33%.The compound national standard of the brick produced.
Claims (7)
1. a kind of organic contamination soil and solid waste combination treatment method, it is characterised in that: used in the processing method
Processing unit includes the first rotary furnace, the vertical incinerator connecting with the tapping channel of the first rotary furnace and vertical incinerator
Second rotary furnace of exhaust passage connection；The bottom of first rotary furnace is provided with low temperature exhaust gas import, the first rotary furnace
Top is equipped with solid waste import；It is equipped with cement kiln smoke-box inlet exhaust gas at the lower part 1/6 ~ 1/8 of the vertical incinerator, stands
It is equipped with cement kiln wind inlet three times at the lower part 1/2 ~ 1/3 of formula incinerator, is equipped with heat at the lower part 1/9 ~ 1/10 of vertical incinerator
The bottom of raw meal inlet, vertical incinerator is exported equipped with raw material；The top of second rotary furnace be equipped with Polluted Soil import, second
The bottom of rotary furnace is equipped with slag-drip opening, and the side wall of the second rotary furnace is equipped with outlet port；It the treating method comprises following step
It is rapid:
A, solid waste is added from the top of the first rotary furnace, introduces low temperature exhaust gas for doing from the bottom of the first rotary furnace
The dry solid waste, the introducing temperature of the low temperature exhaust gas is 100 ~ 300 DEG C, air quantity is 20000 ~ 50000Nm3/ h, the
The revolving speed of single-revolution furnace is 10 ~ 30r/h, and drying time is 30 ~ 60 minutes；
B, it will be delivered in vertical incinerator by dry solid waste, introduce cement kiln smoke-box tail into incinerator respectively
Gas and water stall tertiary air, and 600 ~ 800 DEG C of the raw meal powder from cement kiln precalcining system level V preheater is added；Draw
The cement kiln smoke-box exhaust temperature entered is 1000 ~ 1200 DEG C, and cement kiln smoke-box tail gas air quantity is 10000 ~ 30000Nm3/ h, water
Stall smoke-box tail gas oxygen content is 2% ~ 4%；Air temperature is 700 ~ 900 DEG C to the cement kiln of introducing three times, cement kiln tertiary air air quantity
For 20000 ~ 50000Nm3/ h, cement kiln tertiary air oxygen content are 18% ~ 21%；
C, organic contamination soil is crossed into 15 ~ 80mm rotary screen, screenings inputs the second rotary furnace from top；Vertical incinerator is generated
Tail gas be delivered in the second rotary furnace and carry out heat exchange with organic contamination soil, the revolving speed of the second rotary furnace is 10 ~ 30r/h, the
The exhaust gas generated in two-revolution furnace is discharged from the second revolution furnace sidewall discharge, exhaust gas by air-introduced machine.
2. organic contamination soil according to claim 1 and solid waste combination treatment method, it is characterised in that: described low
Warm tail gas can the tail gas using cement plant grate-cooler low-temperature zone or tail gas or kiln tail discharged tail gas three after cogeneration
Any one of person.
3. organic contamination soil according to claim 1 and solid waste combination treatment method, it is characterised in that: air-introduced machine
The exhaust gas of extraction respectively enters ozone+Ultraviolet Oxidation equipment, 1 ~ 5%NaOH solution is incorporated to cement kiln end bag dust arrester installation after absorbing,
Qualified discharge after processing.
4. organic contamination soil according to claim 1 and solid waste combination treatment method, it is characterised in that: described the
Single-revolution furnace is steel structure, and liner fire proofing material, draw ratio is 10 ~ 15:1, and tilt angle is 3 ~ 5 °.
5. organic contamination soil according to claim 1 and solid waste combination treatment method, it is characterised in that: described the
Two-revolution furnace is steel structure, and liner fire proofing material, draw ratio is 3 ~ 5:1, and tilt angle is 1 ~ 3 °.
6. organic contamination soil according to claim 1 and solid waste combination treatment method, it is characterised in that: described solid
Body waste is delivered in the first rotary furnace by helix transporting device.
7. organic contamination soil according to claim 1 and solid waste combination treatment method, it is characterised in that: organic dirt
Screenings after dye soil sieving is delivered in the second rotary furnace by helix transporting device.
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| CN201710260164.1A CN107120663B (en) | 2017-04-20 | 2017-04-20 | A kind of organic contamination soil and solid waste combination treatment method |
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| CN201710260164.1A CN107120663B (en) | 2017-04-20 | 2017-04-20 | A kind of organic contamination soil and solid waste combination treatment method |
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| CN107120663B true CN107120663B (en) | 2019-01-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004000985A (en) * | 2001-03-09 | 2004-01-08 | Mitsubishi Materials Corp | Processing method of organic matter contaminated soil |
| JP2005270874A (en) * | 2004-03-25 | 2005-10-06 | Sumitomo Osaka Cement Co Ltd | Treatment method of polluted soil and apparatus thereof |
| CN103936311A (en) * | 2014-04-14 | 2014-07-23 | 北京建筑材料科学研究总院有限公司 | Method of combination of joint treatment of organic polluted soil and municipal wastes with cement kiln |
| CN105731839A (en) * | 2016-01-15 | 2016-07-06 | 浙江环立环保科技有限公司 | Treatment method of cement kiln incineration polluted soil |
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2017
- 2017-04-20 CN CN201710260164.1A patent/CN107120663B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004000985A (en) * | 2001-03-09 | 2004-01-08 | Mitsubishi Materials Corp | Processing method of organic matter contaminated soil |
| JP2005270874A (en) * | 2004-03-25 | 2005-10-06 | Sumitomo Osaka Cement Co Ltd | Treatment method of polluted soil and apparatus thereof |
| CN103936311A (en) * | 2014-04-14 | 2014-07-23 | 北京建筑材料科学研究总院有限公司 | Method of combination of joint treatment of organic polluted soil and municipal wastes with cement kiln |
| CN105731839A (en) * | 2016-01-15 | 2016-07-06 | 浙江环立环保科技有限公司 | Treatment method of cement kiln incineration polluted soil |
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Address after: Room 906, building 3, fengdanbailu phase I, CITIC City, Jingyue Development Zone, Changchun City, Jilin Province 130000 Co-patentee after: Golmud Hongyang Environmental Protection Technology Co. Ltd. Patentee after: Jinyuan environmental protection Co., Ltd. Address before: Hangzhou City, Zhejiang province 310052 Jiang Hong Road 1750 run and Sunyard Building 1 building 22 layer Co-patentee before: Golmud Hongyang Environmental Protection Technology Co. Ltd. Patentee before: Golden round cement Limited by Share Ltd |