CN110469856A - A kind of dangerous waste coupled biological matter incineration treatment method - Google Patents
A kind of dangerous waste coupled biological matter incineration treatment method Download PDFInfo
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- CN110469856A CN110469856A CN201910742560.7A CN201910742560A CN110469856A CN 110469856 A CN110469856 A CN 110469856A CN 201910742560 A CN201910742560 A CN 201910742560A CN 110469856 A CN110469856 A CN 110469856A
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- Prior art keywords
- dangerous waste
- biological matter
- treatment method
- incineration treatment
- coupled biological
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- 239000002699 waste material Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000002028 Biomass Substances 0.000 claims abstract description 36
- 239000000446 fuel Substances 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 25
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003546 flue gas Substances 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000011084 recovery Methods 0.000 claims abstract description 10
- 230000018044 dehydration Effects 0.000 claims abstract description 8
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 8
- 239000002918 waste heat Substances 0.000 claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 claims abstract description 5
- 239000000654 additive Substances 0.000 claims description 19
- 230000000996 additive effect Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 15
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 claims description 7
- 238000003672 processing method Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 239000006259 organic additive Substances 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 2
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 238000006477 desulfuration reaction Methods 0.000 claims 1
- 230000023556 desulfurization Effects 0.000 claims 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 230000009977 dual effect Effects 0.000 abstract description 5
- 238000010304 firing Methods 0.000 abstract description 5
- 239000004568 cement Substances 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 230000001502 supplementing effect Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000002023 wood Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/442—Wood or forestry waste
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/48—Solid fuels essentially based on materials of non-mineral origin on industrial residues and waste materials
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/50206—Pelletising waste before combustion
-
- 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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The present invention relates to a kind of dangerous waste coupled biological matter incineration treatment methods, comprising: (1) moisture content that dehydration is mixed to mixture in biomass powder and dangerous waste 1:0.2 in mass ratio ~ 9 is less than or equal to 30%, is then pressed into granular fuel；(2) so that granular fuel is carried out burning at a temperature of being more than or equal to 1200 DEG C and generate high-temperature flue gas, the high-temperature flue gas residence time is no less than 2 seconds；(3) high-temperature flue gas for generating step (2) is after waste-heat recovery device carries out heat recovery, through chilling, dedusting, desulphurization denitration, adsorption treatment, discharges after up to standard.Dangerous waste is handled using the present invention, only pass through high temperature incineration granular fuel, without dual firing chamber, process flow is not only simplified, and since the calorific value of granular fuel is high, without supplementing such as natural gas class high price auxiliary fuel in burning process, not only shorten and simplify burning process, equipment investment is also reduced, compared with existing cement kiln synergic processing dangerous waste technique, cost at least reduces an order of magnitude.
Description
Technical field
The invention belongs to dangerous waste incineration treatment technology fields, and in particular to a kind of dangerous waste coupled biological matter burning disposal side
Method.
Background technique
Currently, common process flow is as follows for the burning disposal of dangerous waste:
In above-mentioned process flow:
The dehydration of dangerous waste is usually to use high-temperature steam thermal dehydration.
Dewatered dangerous waste utilize rotary kiln primary combustion, reduction inhale hot zone temperature control 320~540 DEG C it
Between, in the control of oxidation heat liberation area temperature between 760~980 DEG C, the residence time is 15-90 minutes, and pyrolysis generates gas, solid two
Phase；Gas phase need to continue on through dual firing chamber and carry out second-time burning, and reaction temperature controls between 1200-1600 DEG C, and the residence time is not small
In 2 seconds；Solid phase is discharged as clinker, goes to security landfill field.
After UTILIZATION OF VESIDUAL HEAT IN, flue-gas temperature requires to be quenched to 200 DEG C in 1 second hereinafter, maximum flue gas after second-time burning
Reduce to limit dioxin generation or secondary generation.
Dedusting must use bag-type dust, and each pollutant after processing in flue gas emission must satisfy the requirement in relation to limit value,
And on-line monitoring sulfur dioxide, nitrogen oxides, characteristic contamination and the operation of the systems such as rotary kiln and dual firing chamber's temperature are set
Duty parameter, also needing to network with environmental protection administration monitors in real time.
The primary combustion operation temperature of rotary kiln pyrogenation cannot be too high in existing incineration treatment technology, and too high dangerous waste will return
Coking in rotary kiln, causes operating difficulties.Since the fugitive constituent that dangerous waste is precipitated is easier to form a shell in particle surface, and temperature is not
Height, a large amount of poisonous and harmful substances remain among lime-ash, and it is high to cause lime-ash clinker ignition loss.Rotary kiln needs external provide greatly
The premium fuel of amount is pyrolyzed for dangerous waste.Meanwhile gas phase need to rise rapidly to from the outlet temperature of rotary kiln in dual firing chamber
It 1200 DEG C or more, in the prior art, is usually realized by the premium fuel of supplement.
It can be seen that there are problems for existing incineration treatment technology: if 1) cost of disposal is high, dangerous waste moisture content height, calorific value
It is low, it needs to consume a large amount of steam and premium fuel in treatment process, cost of disposal is high, economically restricts the performance of ability；
2) operation difficulty is big, and dangerous waste physicochemical property is different, if dangerous waste does not first pass through pretreatment, but direct incinerator operation difficulty is very
Greatly；3) lime-ash clinker ignition loss is high, generates a large amount of flying dusts, a large amount of poisonous and harmful substances remain in lime-ash, it is more difficult to realize " dangerous
Incineration of waste contamination control standard " realization harmlessness disposing requirement in GB18484-2001 in relation to limit value.
Summary of the invention
A kind of improved dangerous waste coupled biological matter burning is provided the invention aims to overcome the deficiencies in the prior art
Processing method.
In order to achieve the above objectives, the technical scheme adopted by the invention is as follows:
A kind of dangerous waste coupled biological matter incineration treatment method, comprising the following steps:
(1) biomass powder and dangerous waste 1:0.2 in mass ratio~9 moisture content that dehydration is mixed to mixture are less than
Equal to 20%, it is then pressed into granular fuel；
(2) so that the granular fuel is carried out burning at a temperature of being more than or equal to 1200 DEG C and generate high-temperature flue gas, the high temperature
Gas residence time is not less than 2 seconds；
(3) high-temperature flue gas for generating step (2) through chilling, dedusting, takes off after waste-heat recovery device carries out heat recovery
Sulphur denitration, adsorption treatment are discharged after up to standard.
Further, the processing method further includes the content of the dioxin in flue gas that detection burning generates with to described
It is added in incinerator for inhibiting the auxiliary agent that dioxin generates in flue gas.
Further, it in step (1), is heated in the whipping process, heating temperature is 80~110 DEG C.It is lower
Dehydration temperaturre, VOCs content is lower in condensate liquid.
Further, the heating is heated using jacket type.
Further, the dangerous waste includes other danger of greasy filth class dangerous waste, waste emulsified mixture, moisture content more than or equal to 60%
It is useless.
In terms of some implementations according to the present invention, in step (1), the partial size of the biomass waste material be 0.1~0.5mm,
150~300kg/m of bulk density3, moisture content be less than or equal to 20%, calorific value 16-25GJ/t, ash content be less than or equal to 1%.
In terms of some preferred implementations according to the present invention, the partial size 0.1-0.5mm of the biomass powder, bulk density are
200-300kg/m3, moisture content 2-7%, calorific value 16-25GJ/t, ash content be less than or equal to 1%.
Further, the biomass powder is the powder that biomass material obtains after broken；Or the biomass
Powder is that biomass material first passes through baking processing, is then mixed with additive, the biomass powder being then crushed,
Wherein, the additive amount of the additive is 0~2%.
In terms of some implementations according to the present invention, the biomass powder is biomass material and is used to solidify harmful element
And/or inhibit the additive mixing of the generation of dioxin, it is then crushed, the addition weight of the additive is to account for the life
The 0~2% of raw material of substance；Or the biomass powder is that biomass material first passes through baking processing, is then had with for solidifying
The additive mixing of the generation of evil element and/or inhibition dioxin, the biomass powder being then crushed, wherein institute
The addition weight for stating additive is account for the biomass material after baking 0~2%.
Further, the ash content of the biomass material is less than or equal to 1%.
Further, the biomass material is the combination of one or more of sawdust, wood chip, timber, culled wood.
In terms of some implementations according to the present invention, the stoving temperature that uses of baking is 200~300 DEG C, the residence time
For 20~40min.Preferably, the stoving temperature is 200~250 DEG C.
In terms of some implementations according to the present invention, the additive be one of organic additive, inorganic additive or
Several combinations, the organic additive include polymer, starch etc., and the inorganic additive includes calcium oxide, silica etc..
Further, the diameter of the granular fuel be 3-8mm, length 5-20mm.The particle of the granular fuel is close
Degree is 1.1-1.5g/cm3, bulk density 500-900kg/m3, moisture content 8-20%, calorific value 18-29GJ/t.
In the present invention, the effect of the additive is the generation for solidifying harmful element and/or inhibiting dioxin.The nocuousness
Element includes copper, zinc, cadmium, lead, nickel, chromium, arsenic, selenium, barium, mercury, beryllium etc..
In the present invention, the subsequent processing steps of the high-temperature flue gas for generation of burning can use existing conventional treatment means.
Due to the above technical solutions, the present invention has the following advantages over the prior art:
Dangerous waste is handled using method of the invention, only by high temperature incineration granular fuel, is not necessarily to dual firing chamber, it is not only simple
Process flow is changed, and since the calorific value of granular fuel is high, has been assisted in burning process without supplement such as natural gas class high price
Fuel not only shortens and simplifies burning process, also reduces equipment investment, with existing cement kiln synergic processing dangerous waste technique
It compares, cost at least reduces an order of magnitude.
Specific embodiment
Specific implementation of the invention is described in further detail below with reference to embodiment, but implementation and protection of the invention
Range is without being limited thereto.
Embodiment 1
The present embodiment provides a kind of dangerous waste coupled biological matter incineration treatment method, process is as follows:
Specific step is as follows for the processing method:
(1) biomass powder and waste emulsified mixture 1:0.2 in mass ratio are added in jacket type stirring mixed dehydration device, stirring
Collet heating temperature is 110 DEG C in the process, the discharging when moisture content is 20% or so.
(2) granular fuel will be pressed into through step (1) dewatered material.
(3) granular fuel is sent into incinerator, and is passed through air, fire granular fuel at a temperature of being higher than 1200 DEG C
It burns, gas residence time is no less than 2 seconds, and security landfill field is gone in the clinker discharge of generation.
(4) high-temperature flue gas generated in step (3) makes flue gas cool-down to 500 DEG C of left sides through waste-heat recovery device recovery waste heat
The right side enters back into chilling tower, is quenched flue gas to 200 DEG C hereinafter, the flue gas after dedusting carries out subsequently into bag filter dedusting
Desulphurization denitration and activated carbon adsorption processing, it is up to standard after neat stress discharge.
In this example, the physicochemical property of waste emulsified mixture are as follows: moisture content 64.1%, volatile matter+solidification carbon 33.9%, calorific value are
10.9GJ/t, ash content 2%.
The physicochemical property of biomass powder are as follows: moisture content 7.4%, volatile matter+solidification carbon 99.6%, calorific value 18.6GJ/
T, ash content is 0.4%.
The physicochemical property of granular fuel are as follows: diameter 5.97mm, length 18.84mm, grain density 1.23g/cm3, heap
Product density 626kg/m3, moisture content 12.34%, calorific value (butt) 19.79GJ/t, ash content 3.03%.
Biomass powder in this example is prepared with the following method:
(1) it pre-processes: the impurity such as stone, iron, ash in removal waste wood piece；
(2) dry: pretreated wood chip to be entered in drier, 110 DEG C of drying temperature, residence time in 20min, do
Discharging after dry；
(3) mixture is broken: the biomass material baked after modifying being mixed with additive, then pulverizer is utilized to carry out powder
Broken obtained biomass powder, being crushed to partial size is 0.1-0.5mm, wherein calcium oxide accounts for about biomass material (butt)
0.5%.Harmful element from ionic state, is converted to titanium oxide, and be solidificated in clinker by the addition in biomass powder, is easier to reach
Into GB1848-2001 in relation to the requirement of limit value.
Embodiment 2
The present embodiment provides a kind of dangerous waste coupled biological matter incineration treatment method, the dangerous waste that is used in this example with embodiment 1,
In processing method, in addition to biomass powder and waste emulsified mixture mass ratio are 1:0.4, other are the same as embodiment 1.
In this example, the physicochemical property of granular fuel are as follows: diameter 6.38mm, length 15.99mm, grain density 1.25g/
cm3, bulk density 522kg/m3, moisture content 19.57%, calorific value (butt) 19.47GJ/t, ash content 3.22%.
Embodiment 3
The present embodiment provides a kind of dangerous waste coupled biological matter incineration treatment methods, and the dangerous waste used is the dirt of Petrochemical Enterprises
Oil, the processing method the following steps are included:
(1) biomass powder and sump oil 1:2.3 in mass ratio are added in jacket type stirring mixed dehydration device, whipping process
Middle collet heating temperature is 110 DEG C, the discharging when moisture content is 20% or so.
(2) granular fuel will be pressed into through step (1) dewatered material.
(3) granular fuel is sent into incinerator, and is passed through air, fire granular fuel at a temperature of being higher than 1200 DEG C
It burns, gas residence time is no less than 2 seconds, and security landfill field is gone in the clinker discharge of generation.
(4) high-temperature flue gas generated in step (3) makes flue gas cool-down to 500 DEG C of left sides through waste-heat recovery device recovery waste heat
The right side enters back into chilling tower, is quenched flue gas to 200 DEG C hereinafter, the flue gas after dedusting carries out subsequently into bag filter dedusting
Desulphurization denitration and activated carbon adsorption processing, it is up to standard after neat stress discharge.
In this example, the physicochemical property of sump oil are as follows: moisture content 61.6%, volatile matter+solidification carbon 37.4%, ash content 0.9%, heat
It is worth (material object) 9.9GJ/t.
Biomass powder in this example is the same as embodiment 1.
The physicochemical property of granular fuel are as follows: diameter 5.67mm, length 18.74mm, grain density 1.00g/cm3, heap
Product density 518kg/m3, moisture content 17.3%, calorific value (butt) 27.3GJ/t, ash content 4.13%.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of dangerous waste coupled biological matter incineration treatment method, which comprises the following steps:
(1) biomass powder and dangerous waste 1:0.2 in mass ratio ~ 9 moisture content that dehydration is mixed to mixture are less than or equal to
30%, it is then pressed into granular fuel；
(2) so that the granular fuel is carried out burning at a temperature of being more than or equal to 1200 DEG C and generate high-temperature flue gas, the high-temperature flue gas
Residence time is no less than 2 seconds；
(3) high-temperature flue gas for generating step (2) is de- through chilling, dedusting, desulfurization after waste-heat recovery device carries out heat recovery
Nitre, adsorption treatment discharge after up to standard.
2. dangerous waste coupled biological matter incineration treatment method according to claim 1, it is characterised in that: the processing method is also
The content of the dioxin in flue gas generated including detection burning into the incinerator to be added for inhibiting two evil in flue gas
The auxiliary agent that English generates.
3. dangerous waste coupled biological matter incineration treatment method according to claim 1, it is characterised in that: described in step (1)
It is heated in whipping process, heating temperature is 80 ~ 110 DEG C.
4. dangerous waste coupled biological matter incineration treatment method according to claim 1, it is characterised in that: the dangerous waste includes oil
Mud class dangerous waste, waste emulsified mixture, moisture content are more than or equal to 60% other dangerous wastes.
5. dangerous waste coupled biological matter incineration treatment method according to claim 1, it is characterised in that: described in step (1)
The partial size of biomass waste material is 0.1 ~ 0.5mm, 150 ~ 300 kg/m of bulk density3, moisture content be less than or equal to 10%, calorific value 16-
25GJ/t, ash content are less than or equal to 1%.
6. dangerous waste coupled biological matter incineration treatment method according to claim 1 or 5, it is characterised in that: the biomass
The partial size 0.1-0.5mm of powder, bulk density are 200-300 kg/m3, moisture content 2-7%, calorific value 16-25GJ/t, ash content it is small
In equal to 1%.
7. dangerous waste coupled biological matter incineration treatment method according to claim 1 or 5, it is characterised in that: the biomass
Powder is the powder that biomass material obtains after broken；Or the biomass powder is that biomass material first passes through at baking
Reason, then mix with additive, the biomass powder being then crushed, wherein the additive amount of the additive for 0 ~
2%。
8. dangerous waste coupled biological matter incineration treatment method according to claim 7, it is characterised in that: the biomass material
Ash content be less than or equal to 1%.
9. dangerous waste coupled biological matter incineration treatment method according to claim 7, it is characterised in that: the additive is to have
The combination of one or more of machine additive, inorganic additive, the organic additive include polymer, starch, the nothing
Machine additive includes calcium oxide, silica.
10. dangerous waste coupled biological matter incineration treatment method according to claim 1, it is characterised in that: the granular fuel
Diameter be 3-8mm, length 5-20mm.
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| CN114309012A (en) * | 2022-01-05 | 2022-04-12 | 张众益 | Method for improving combustion characteristics of organic hazardous waste by using strong shearing force |
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Application publication date: 20191119 |