CN100363475C - Preparation method of city refuse incineration furnace granular fuel - Google Patents
Preparation method of city refuse incineration furnace granular fuel Download PDFInfo
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- CN100363475C CN100363475C CNB2005100219857A CN200510021985A CN100363475C CN 100363475 C CN100363475 C CN 100363475C CN B2005100219857 A CNB2005100219857 A CN B2005100219857A CN 200510021985 A CN200510021985 A CN 200510021985A CN 100363475 C CN100363475 C CN 100363475C
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- piece material
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- incinerator
- granular fuel
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- 239000000446 fuel Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims description 8
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 92
- 239000002245 particle Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000001704 evaporation Methods 0.000 claims abstract description 12
- 230000008020 evaporation Effects 0.000 claims abstract description 12
- 238000010298 pulverizing process Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 64
- 239000002699 waste material Substances 0.000 claims description 12
- 238000005469 granulation Methods 0.000 claims description 9
- 230000003179 granulation Effects 0.000 claims description 9
- 238000013467 fragmentation Methods 0.000 claims description 6
- 238000006062 fragmentation reaction Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000006213 oxygenation reaction Methods 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 28
- 238000012545 processing Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 12
- 239000007789 gas Substances 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- -1 cobble Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000032696 parturition Effects 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000000382 dechlorinating effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a method for generating particle fuel of an urban domestic garbage incinerator, which comprises the following steps of selection, crushing, detearing evaporation, secondary pulverization, particle manufacture and drying. The optimal path for changing the working condition of the existing incinerator is that particle fuel is manufactured by the method provided by the present invention and then is burnt. Meanwhile, the method of the present invention reduces the requirements of raw materials, heat value and water content for garbage burning treatment, increases the applicable range of treating garbage in an incineration method, reduces energy consumption and cost, increases processing capacity and heat energy output, greatly reduces secondary pollution generated by tail gas, and is an important technical breakthrough. In addition, the technology of the present invention can restart the production-halt incinerator, so investments are saved greatly.
Description
Technical field
The invention belongs to environmental technology field, relate to a kind of production method of urban domestic garbage incinerator granular fuel.
Background technology
The organic substance that contains many easy fermentations in the municipal wastes without processing, is placed and then can be produced stink and contaminative percolate, influences environment.In traditional trash processing way, as sanitary landfill method, its floor space is very big, and processing costs is higher, not only wastes a large amount of land resourcess, but also has brought environmental pollution, and applied value is more and more lower, and this method is eliminated gradually; Composting process and for example, its organic utilization is incomplete, fertilizer composition complexity in addition, factor such as minimizing is less also just progressively is eliminated.
Innoxious, the minimizing of treatment of urban garbage and energy are the important directions of current refuse treatment development, it mainly is method to burn away the refuse, the burning of rubbish will progressively become the main flow of domestic waste harmless treatment because of its many distinct advantages that have, mainly show: one, rubbish is after burning disposal, pathogenic agent in the rubbish is utterly destroyed, obnoxious flavour that produces in the combustion processes and flue dust reach emission request after treatment, and innoxious degree is higher; Two, but rubbish loss of weight 80% after burning subtracts and holds more than 90%, and decrement is effective, and volume reduces greatly after the pyrolysis, can save a large amount of soils.Three, the tail gas of Chan Shenging, heat energy can fully reclaim and utilize, and make refuse treatment can obtain economic benefit, realize the Sustainable development of refuse treatment.
China's city garbage burning Study on Technology is started in 20th century the mid-80, is listed in national science and technology tackling key problem technology during " eight or five ".Be in development and conceptual phase now, the technology maturation degree is lower, and the general operating performance of equipment is poor, amounts to operation factory number, and less than 10% in various trash processing way.Factory moves every index and does not reach design requirements for a long time; Main operating index is as follows: average rubbish electric energy heat recovery rate is 5%～8%, be up to 10%, the volume reduction rate of rubbish is 60%～80%, organic content in the slag 〉=3%, the hot burn decrement rate of slag 〉=5% is limited by rubbish moisture content and calorific value, adds a large amount of combustion-supporting material coal or heavy oil for a long time, addition significantly improves processing cost up to 15%～30%.Dust concentration is higher in the tail gas, for a long time qualified discharge not.
Based on this: China incinerator is handled working cost, be about 60～90 yuan/t fresh food garbage, whole incineration plant long-term loss operation, the secondary pollution problem of tail gas and slag does not solve so far as yet fully simultaneously, for the heavy burden of government's back, whole technique and popularization and application have been hindered.
Existing method of burning away the refuse mainly is, with rubbish drop into carry out in the incinerator burnt in a heap, when giving birth to the stove ignition and in the burning process, add combustion-supporting materials such as coal, heavy oil at any time, make the burning of rubbish more abundant, the heat that is produced behind the incineration firing is used to steam boiler and carries out heat exchange, thereby reaches the purpose of energy utilization, discharges after the vent gas treatment that is produced, before waste incineration, sorting and the fragmentation of also having carried out rubbish that have.But there is following shortcoming in the method for this waste incineration:
One, owing to domestic msw water content height, calorific value is low, needs to add a large amount of combustion-supporting materials and heat energy supplementation material;
Two, influenced by rubbish granularity and each component combustioncharacteristics, the burning process residence time is wayward, and the incomplete combustion situation is outstanding, has both strengthened bed drain purge, influences the exhaust emissions quality again, and the heat energy utilization rate is low;
Three, influenced by the rubbish labile element, temperature distributing disproportionation is even in the stove, burns of poor quality;
Four, rubbish is not handled even through simple process, directly advances incinerator, and the stove internal porosity is low, and the burner hearth stacking factor is big, thus low with the air mixed degree, be unfavorable for burning;
Five, because of its point of ignition gap is big, occur local collapse easily after crude waste is heated, influence oxygen supply, cause exhaust emissions of poor quality.
Therefore to improve the operating mass of incinerator, strengthen the heat energy utilization rate, reduce the treating tail gas cost, at first should enter the stokehold and carry out more effective pre-treatment, for burning creates favorable conditions at rubbish.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art and provide that a kind of water content is low, calorific value is high, the preparation method of institute's calorific value basically identical, city refuse incineration furnace granular fuel that combustion efficacy is good, in incinerator, use this granular fuel can improve the operating mass of incinerator, strengthen the heat energy utilization rate, improve the exhaust emissions quality.
The object of the present invention is achieved like this:
A kind of preparation method of city refuse incineration furnace granular fuel is characterized in that may further comprise the steps:
(1) sorting, fragmentation: municipal wastes is carried out sorting, sub-elect combustiblerefuse, again these combustiblerefuses are broken into the rubbish piece material of particle diameter≤100mm;
(2) draining evaporation: is that the drop of 2900-3300Pa mixes in the storehouse and draining with above-mentioned rubbish piece material at pressure, and the moisture content in the evaporation rubbish piece material is to rubbish piece material water content≤40%;
(3) secondary is pulverized: the rubbish piece material of water content≤40% is carried out the secondary pulverizing, form the rubbish piece material of particle diameter≤50mm;
(4) granulation: in the rubbish piece material of particle diameter≤50mm, add the auxiliary agent of rubbish piece material weight 3-8%, carry out extruder grain after mixing again, form the granulated garbage material;
(5) oven dry: above-mentioned granulated garbage material is dried between 100-200 ℃,, promptly get city refuse incineration furnace granular fuel to water content≤20%.
Wherein, in sorting, broken step, broken bag rate 〉=95% of composting, so-called broken bag rate is meant the notion at Chinese rubbish characteristic, the Chinese city domestic refuse is packed based on unfiled mixing, if can not effectively separate brokenly to packing bag, can't effectively sort, will cause very big influence to following process.This is proposed broken bag rate notion, represent in the course of processing the per-cent that cracks the rubbish packing bag with it.
2900-3300Pa pressure in the draining evaporation step forms by charging into air, and the effect of pouring air in this process is: one, take away most of moisture content by air cycle; Two, utilize the effect of oxygen in the air to guarantee that drop rubbish in process does not produce obnoxious flavoures such as methane, thereby reduce obnoxious flavour content; Three, pouring air can reduce the generation of foul gas or alleviate its concentration.
The auxiliary agent that is added in granulation step is wherein any one of calcium oxide or lime carbonate, white lime, its role is to: one, effectively improve granular fuel intensity; Two, granular fuel no longer produces Secondary Fermentation in the preservation process; Three, in the granular fuel combustion processes, play the dechlorinating agent effect.
In granulation step, the particle diameter of the granulated garbage material of formation is that 20-30mm, length are 40-100mm; Preferably particle diameter is that 20mm, length are 60-80mm;
In granulation step, water content≤36% of the granulated garbage material of formation;
The temperature that is adopted in baking step is preferably 150 ℃.
The incineration furnace granular fuel performance such as the following table that make according to present method:
| Project | Calorific value | Finished product moisture content | Particle shape | Granule strength | Granulation mass proportion |
| Performance perameter | Q y dw1600～4000Kcal/kg | ≤20％ | (column) φ 20 * 40～100mm | 6～8N | r＝600kg/m |
The using method of this city refuse incineration furnace granular fuel is very simple, being about to this granular fuel drops in the incinerator, when giving birth to the stove ignition, add combustion-supporting materials such as a certain amount of coal, heavy oil, the combustion of opening of rubbish is more prone to, utilize the combustibility of self and the heat of generation in incinerator, to realize the situation that rubbish burns rubbish after this granular fuel burning, need not add combustion-supporting material once more, the heat that is produced is used to steam boiler and carries out heat exchange, heat is fully utilized, and discharges after the vent gas treatment; Certainly, be the Optimizing operation environment, can also in pilot process, dispose sewage disposal, remove smell, operation such as oxygenation, these technology belong to known technology.
The granular fuel that adopts the present invention to make has than prior art following advantage is arranged:
One, effectively improved the calorific value of rubbish.Through the permanent calculation of material, the rubbish of low heat value 800Kcal/kg, calorific value can reach 1500-1600Kcal/kg after said process processing; Greatly improved the utilization scope of burning method treating refuse with this understanding,, can adopt this method to carry out incineration treatment of garbage now in the city that original refuse thermal value does not reach the incinerator operational condition;
Two, water content reduces, and point of ignition reduces.Because the water content of this granular fuel has only 20%, very easily light, remove and give birth to except the stove ignition, can not add any combustion-supporting material, can realize the burning operation of rubbish, fully saved the energy;
Three, calorific value is stable.Granular fuel after above-mentioned processing, its inherent calorific value basically identical, it is less that calorific value differs, and almost at the equal incendivity of equal conditions or burnout, thereby improved the incinerator operation stability;
Four, burning is more abundant.After above-mentioned granular fuel is piled incinerator, because the porosity between the particle is higher, itself and air exposure level are improved greatly, under the environment of aerobic, the granular fuel burning is more abundant;
Five, burning back granular fuel decrement is obvious.Through the granular fuel of said process processing after the incinerator internal combustion, waste reduction 60%, thus effectively improve nearly about 1 times of incinerator processing power;
Six, heat energy utilization rate raising, exhaust emissions quality improve.Because the improvement of combustion conditions, the utilization ratio of effective heat energy of incinerator output can improve about 40%, and it is nearly 20% that deduction raw material tooling cost, total system energy recovery utilization ratio can improve, and it is nearly 80% that the tail gas dust discharge reduces, and discharge quality effectively improves.
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples, but the present invention has more than and is limited to these examples:
Embodiment 1:
A kind of preparation method of city refuse incineration furnace granular fuel is characterized in that may further comprise the steps:
(1) sorting, fragmentation: municipal wastes is carried out sorting, remove hard materials such as glass, cobble, metal, bone, sub-elect combustiblerefuse, again these combustiblerefuses are broken into the rubbish piece material of particle diameter≤100mm, and guarantee broken bag rate 〉=95% of combustiblerefuse simultaneously;
(2) draining evaporation: is that the drop of 2900Pa mixes in the storehouse and draining with above-mentioned rubbish piece material at oxygenation pressure, and the moisture content in the evaporation rubbish piece material is to rubbish piece material water content≤40%;
(3) secondary is pulverized: the rubbish piece material of water content≤40% is carried out the secondary pulverizing, form the rubbish piece material of particle diameter≤50mm;
(4) granulation: add the calcium oxide of rubbish piece material weight 3% in the rubbish piece material of particle diameter≤50mm, carry out extruder grain after mixing again, the formation particle diameter is that 20mm, length are the granulated garbage material of 40～100mm;
(5) oven dry: above-mentioned granulated garbage material is dried under 100 ℃ temperature, till water content≤20%, promptly get city refuse incineration furnace granular fuel.
Embodiment 2:
A kind of preparation method of city refuse incineration furnace granular fuel is characterized in that may further comprise the steps:
(1) sorting, fragmentation: municipal wastes is carried out sorting, remove hard materials such as glass, cobble, metal, bone, sub-elect combustiblerefuse, again these combustiblerefuses are broken into the rubbish piece material of particle diameter≤100mm, and guarantee broken bag rate 〉=95% of combustiblerefuse simultaneously;
(2) draining evaporation: is that the drop of 3300Pa mixes in the storehouse and draining with above-mentioned rubbish piece material at oxygenation pressure, and the moisture content in the evaporation rubbish piece material is to rubbish piece material water content≤40%;
(3) secondary is pulverized: the rubbish piece material of water content≤40% is carried out the secondary pulverizing, form the rubbish piece material of particle diameter≤50mm;
(4) granulation: add the lime carbonate of rubbish piece material weight 8% in the rubbish piece material of particle diameter≤50mm, carry out extruder grain after mixing again, the formation particle diameter is that 30mm, length are the granulated garbage material of 60～80mm;
(5) oven dry: above-mentioned granulated garbage material is dried under 150 ℃ temperature, till water content≤20%, promptly get city refuse incineration furnace granular fuel.
Embodiment 3:
A kind of preparation method of city refuse incineration furnace granular fuel is characterized in that may further comprise the steps:
(1) sorting, fragmentation: municipal wastes is carried out sorting, remove hard materials such as glass, cobble, metal, bone, sub-elect combustiblerefuse, again these combustiblerefuses are broken into the rubbish piece material of particle diameter≤100mm, and guarantee broken bag rate 〉=95% of combustiblerefuse simultaneously;
(2) draining evaporation: is that the drop of 3300Pa mixes in the storehouse and draining with above-mentioned rubbish piece material at oxygenation pressure, and the moisture content in the evaporation rubbish piece material is to rubbish piece material water content≤40%;
(3) secondary is pulverized: the rubbish piece material of water content≤40% is carried out the secondary pulverizing, form the rubbish piece material of particle diameter≤50mm;
(4) granulation: add the white lime of rubbish piece material weight 5% in the rubbish piece material of particle diameter≤50mm, carry out extruder grain after mixing again, the formation particle diameter is that 25mm, length are the granulated garbage material of 60～80mm;
(5) oven dry: above-mentioned granulated garbage material is dried under 200 ℃ temperature, till water content≤20%, promptly get city refuse incineration furnace granular fuel.
Adopt the prepared city refuse incineration furnace granular fuel of the present invention in incinerator, burn and compare parameters such as following table: " the municipal wastes management and treatment and disposal technological standard standard application practice pandect " that these parameters will report press to publish by 2002 8 moonlight tomorrow with municipal wastes, p804-805 the 5th joint, the content of main technical details and economic parameters is determined:
| Sequence number | Project | Rubbish directly burns | Granulated garbage burns |
| 1 | To the crude waste requirement | Q y dw≥1000Kcal/kg | Q y dw≥600Kcal/kg |
| 2 | Bulk density | r＝250～350kg/m 3 | r≥600kg/m 3 |
| 3 | Temperature of combustion | 724～1050℃ | 1050℃～1300℃ |
| 4 | Rubbish is in the incinerator residence time | 1.5h～2.5h | 1h～1.5h |
| 5 | The rubbish bed thickness | 500～1000mm | 500～1500mm |
| 6 | Burning tail thermal load | 8×10 4～15×10 4Kcal/m 3h | 1.5×10 4～25×10 4Kcal/m 3h |
| 7 | The incinerator load range | 90％～100％ | 100％～140％ |
| 8 | The high heating value material adds | 15％～30％ | \ |
| 9 | The hot burn decrement rate of dregs of incinerator | 5％～10％ | Below 1% |
| 10 | The dregs of incinerator organic content | 0.1％～3％ | \ |
| 11 | Outlet exhaust gas dust concentration | 80～120mmg/m 3 | 30～40mmg/m 3 |
| 12 | Lingemann blackness | The I level | \ |
| 13 | The burner hearth coefficient of excess air | 1.5～2 | 2-4 |
| 14 | Average rubbish electric energy heat recovery rate | 5-8％ | 20-30％ |
| 15 | The average treatment cost | 60～90 yuan/ton | 32.6 unit/ton |
In a word, after preparing granular fuel by method provided by the present invention, burn again, it is the optimal path that changes existing incinerator working condition, reduced the requirement of incineration treatment of garbage simultaneously to raw material, calorific value and moisture content, improved the scope of application of burning method treating refuse, reduce energy consumption and cost, improve the output of processing power and heat energy, and the secondary pollution that greatly reduces tail gas and caused, be that an important technology is broken through, in addition, utilize this technology the incinerator that has now stopped production can be restarted use, greatly saved investment.
Claims (1)
1. the preparation method of a city refuse incineration furnace granular fuel is characterized in that may further comprise the steps:
(1) sorting, fragmentation: municipal wastes is carried out sorting, sub-elect combustiblerefuse, again these combustiblerefuses are broken into the rubbish piece material of particle diameter≤100mm, and guarantee broken bag rate 〉=95% of rubbish;
(2) draining evaporation: is that drop oxygenation in the storehouse of 2900-3300Pa mixes and draining with above-mentioned rubbish piece material at pressure, and the moisture content in the evaporation rubbish piece material is to rubbish piece material water content≤40%;
(3) secondary is pulverized: the rubbish piece material of water content≤40% is carried out the secondary pulverizing, form the rubbish piece material of particle diameter≤50mm;
(4) granulation: in the rubbish piece material of particle diameter≤50mm, add the auxiliary agent of rubbish piece material weight 3-8%, carry out extruder grain after mixing again, form the granulated garbage material;
(5) oven dry: above-mentioned granulated garbage material is dried between 100-200 ℃,, promptly get city refuse incineration furnace granular fuel to water content≤20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100219857A CN100363475C (en) | 2005-10-31 | 2005-10-31 | Preparation method of city refuse incineration furnace granular fuel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100219857A CN100363475C (en) | 2005-10-31 | 2005-10-31 | Preparation method of city refuse incineration furnace granular fuel |
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| CN1766073A CN1766073A (en) | 2006-05-03 |
| CN100363475C true CN100363475C (en) | 2008-01-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886010A (en) * | 2010-07-09 | 2010-11-17 | 深圳市兖能环保科技有限公司 | Method for preparing regeneration pellet fuel of urban household garbage |
| CN102776046B (en) * | 2012-07-26 | 2014-06-25 | 崔仁仙 | Environment-friendly barbecue fuel rod and production method of environment-friendly barbecue fuel rod |
| CN116550719B (en) * | 2023-04-10 | 2023-10-17 | 中城院(北京)环境科技股份有限公司 | Decoration garbage treatment process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102011A (en) * | 1987-04-10 | 1988-10-26 | 彭斌鹏 | The rubbish coal |
| CN1329950A (en) * | 2001-08-06 | 2002-01-09 | 北京华联达环保能源技术开发有限责任公司 | Process for comprehensive utilization of life garbage in urban area |
| KR20020072051A (en) * | 2001-03-08 | 2002-09-14 | 박선우 | Method to manufacture substitute fuel using food wastes |
| CN1396245A (en) * | 2002-08-27 | 2003-02-12 | 王和勋 | Process for preparing solid fuel with high heat value and low pollution from life garbage |
-
2005
- 2005-10-31 CN CNB2005100219857A patent/CN100363475C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102011A (en) * | 1987-04-10 | 1988-10-26 | 彭斌鹏 | The rubbish coal |
| KR20020072051A (en) * | 2001-03-08 | 2002-09-14 | 박선우 | Method to manufacture substitute fuel using food wastes |
| CN1329950A (en) * | 2001-08-06 | 2002-01-09 | 北京华联达环保能源技术开发有限责任公司 | Process for comprehensive utilization of life garbage in urban area |
| CN1396245A (en) * | 2002-08-27 | 2003-02-12 | 王和勋 | Process for preparing solid fuel with high heat value and low pollution from life garbage |
Non-Patent Citations (2)
| Title |
|---|
| 圾衍生燃料的制备及应用. 陈盛建等.节能环保技术，第4期. 2004 * |
| 堆酵－低热值生活垃圾焚烧工艺的重要环. 阿世孺等.开发与利用，第4期. 2003 * |
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| CN1766073A (en) | 2006-05-03 |
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