CN104084414A - Recycling method of combustible solid waste - Google Patents
Recycling method of combustible solid waste Download PDFInfo
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- CN104084414A CN104084414A CN201410305271.8A CN201410305271A CN104084414A CN 104084414 A CN104084414 A CN 104084414A CN 201410305271 A CN201410305271 A CN 201410305271A CN 104084414 A CN104084414 A CN 104084414A
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- discarded object
- fine crushing
- flammable solid
- solid discarded
- processing method
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- 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
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a recycling method of combustible solid waste. The recycling method comprises the steps of preprocessing household garbage to obtain a first fine crushing material, preprocessing other combustible solid waste to obtain a second fine crushing material, mixing the first fine crushing material and the second fine crushing material with an auxiliary agent in a certain ratio to obtain a mixed material, and shaping the mixed material on a forming machine to produce a garbage deriving fuel in a preset shape. The recycling method of the combustible solid waste provided by the invention solves the problems that the cost is high, the investment of incineration equipment is large and the environmental pollution is serious when household garbage and other combustible solid waste are processed.
Description
Technical field
The present invention relates to garbage disposal field, relate in particular to a kind of recycling processing method of flammable solid discarded object.
Background technology
At present, along with World Economics high speed development, house refuse and other flammable solid discarded object (such as flammable hazardous waste, sludge of sewage treatment plant, trade waste etc.) have become human society and stablize the obstacle of sustainable development, and it is that pendulum is in whole mankind's difficult problem in front that these discarded objects are disposed in how innoxious, resource, minimizing.
In the middle of the solid waste taking house refuse as representative, the overwhelming majority has combustibility, burning and reclaiming heat is the minimizing that people are generally acknowledged, the best approach of disposal of resources, people have adopted a kind of method of novel processing house refuse at present, by house refuse after series of preprocessing, make a kind of new forms of energy product of sustainable regeneration--garbage derivatived fuel (RDF), the garbage derivatived fuel calorific value of the type that processes from strand is high and stable, homogeneous grain diameter, intensity is high, can preserve for a long time, be easy to packaging and transport, pollute little, to become one of following reproducible main fuel kind.
The method of at present processing the flammable solid discarded objects such as house refuse in burning mode is discarded object to be dropped into after simple process to incinerator to burn mostly, and heat energy is for generating; Or by discarded object through pretreatment, fermentation is made biogas and is generated electricity; These modes except processing cost relatively high, burning facility has high input, discarded object transport and storage (particularly danger wastes) trouble, flying dust and tailings still need to dispose outside (hazardous waste also needs special disposal), and be mainly has violent in toxicity dioxin to produce in Refuse Incineration Process.Having is exactly by discarded object landfill again, not only can not recycle, and environmental pollution is very serious.
Summary of the invention
In order to solve the technical problem existing in background technology, the present invention proposes a kind of recycling processing method of flammable solid discarded object, to solve in the time processing the flammable solid discarded objects such as house refuse, the problem that cost is high, burning facility has high input and environmental pollution is serious.
The present invention proposes a kind of recycling processing method of flammable solid discarded object, described flammable solid discarded object comprises house refuse and other flammable solid discarded object, described other flammable solid discarded object comprises at least one in the industrial residu of resource regeneration process, flammable trade waste and hazardous waste, and described recycling processing method comprises the following steps:
Step 1, by house refuse extrusion dehydration;
Step 2, to dehydration after house refuse carry out coarse crushing;
Step 3, the house refuse after coarse crushing is carried out to selection by winnowing one time, obtain the first light thing and the first weight; Then the first light thing is directly carried out to fine crushing;
Step 4, will after a magnetic separation of the first weight, carry out fine crushing;
Step 5, the first weight of fine crushing is dried, then secondary selection by winnowing, obtains the second light thing and the second weight;
Step 6, the second weight is carried out carrying out vibration winnowing after secondary magnetic separation, obtain the 3rd light thing and the 3rd weight.
Step 7, the first light thing, the second light thing and the 3rd light thing are mixed, obtain the first fine crushing material;
Step 8, other flammable solid discarded object is carried out to sorting and fragmentation, obtain the second fine crushing material;
Step 9, the first fine crushing material, the second fine crushing material and adjuvant are mixed according to a certain percentage, obtain compound;
Step 10, compound is made on forming machine to the garbage derivatived fuel of reservation shape.
Further, also comprise the step that other flammable solid discarded object is dried.
Further, in described drying operation, be less than 30% by the moisture of the material after drying.
Further, also comprise described the 3rd weight as construction material or carry out the step of landfill disposal.
Further, in step 10, according to mass percent, described the first fine crushing material accounts for 65%-85%, and the second fine crushing material accounts for 15%-35%, and adjuvant accounts for the 2%-15% of the first fine crushing material and the second fine crushing material summation.
Further, described adjuvant comprises one or more in combustion adjuvant, binding agent and pollutant inhibitor.
Further, described pollutant inhibitor comprises CaO powder.
Further, the recycling processing method of described flammable solid discarded object also comprises the step of system deodorizing.
The recycling processing method of a kind of flammable solid discarded object that the present invention proposes, house refuse and other flammable solid discarded object are carried out to integrated treatment, not only make discarded object obtain cycling and reutilization, and utilize house refuse to water down the content of beary metal in other flammable solid discarded object, utilize not chloride (or chloride low), other flammable solid discarded object that moisture is low to water down chlorine and the moisture in house refuse, reduce processing cost, but also make the garbage derivatived fuel component made even, stable performance.
Brief description of the drawings
Fig. 1 is the process chart of the recycling processing method of flammable solid discarded object in the specific embodiment of the invention.
Detailed description of the invention
As shown in Figure 1, the invention provides a kind of recycling processing method of flammable solid discarded object, flammable solid discarded object in the present invention is taking house refuse as main, also comprise other flammable solid discarded object except house refuse, this other flammable solid discarded object comprises the industrial residu of resource regeneration process, at least one in flammable trade waste and hazardous waste, wherein, the industrial residu of resource regeneration process comprises useless automobile dismounting residue, the foam residues that waste electrical equipment is disassembled, the nonmetal residue that waste electric products is disassembled, waste or used plastics, the mixing residue that the circular regeneration processes such as rubber produce, land thing etc., flammable trade waste comprises paint residues, toner, oily sludge and the machine of wiping cloth etc., hazardous waste comprises clinical waste, chemicals discarded object and heavy metal discarded object etc., the object of the invention is to house refuse and other flammable solid discarded object to carry out integrated treatment, not only make discarded object obtain cycling and reutilization, and utilize house refuse to water down the content of beary metal in other flammable solid discarded object, utilize not chloride (or chloride low), other flammable solid discarded object that moisture is low to water down chlorine and the moisture in house refuse, reduce processing cost, but also make the garbage derivatived fuel component made even, stable performance, particularly drying and processing repeatedly operation, not only, for the sorting of material offers convenience, has also improved the quality of garbage derivatived fuel.
Embodiment 1:
S10: by house refuse extrusion dehydration: house refuse is pushed with extrusion equipment, its moisture is down to 40% left and right, the percolate squeezing out is processed rear discharge up to standard in addition;
S11: extruding is removed to the house refuse coarse crushing after percolate, for example, be broken into the fragment that particle diameter is less than 120mm;
S12: the house refuse after coarse crushing is carried out to wind-force ragging (selection by winnowing), be divided into lightweight film material (i.e. the first light thing) and heavier feeds (i.e. the first weight); Lightweight film material fine crushing particle diameter is less than to the fragment of 20mm;
S13: heavier feeds is carried out carrying out fine crushing after a magnetic separation, be broken into the fragment that particle diameter is less than 20mm;
S14: the heavier feeds after fine crushing is dried, control moisture lower than 20%;
S15: the heavier feeds after drying is carried out to secondary selection by winnowing, obtain heavy material in small, broken bits (i.e. the second weight) and light material in small, broken bits (i.e. the second light thing);
S16: heavy material in small, broken bits is carried out carrying out vibration winnowing after secondary magnetic separation again, obtain the light material of selection by winnowing (the 3rd light thing) and selection by winnowing heavy material (inert material), inert material is herein generally the inorganic matters such as sandstone, cement, glass, pottery;
S17: by the lightweight film material of fine crushing, light material in small, broken bits and the light mixing of materials of selection by winnowing, obtain the first fine crushing material;
S18: wiring board is carried out to sorting and fragmentation, reject metal and inorganic matter, obtain the non-metal powder (i.e. the second fine crushing material) that wiring board reclaims;
S19: by the first fine crushing material 80% (mass percent), the non-metal powder 20% that wiring board reclaims, and the CaO powder of above-mentioned material total amount 2%, 0.5% deodorant mix;
S20: by the material compression packing mixing, briquet, or make RDF product with RDF forming machine.
It should be noted that, in this embodiment, also comprise step, vibration winnowing inert material is out carried out to landfill, also can be used as construction material.
Embodiment 2:
S10: by house refuse extrusion dehydration: house refuse is pushed with extrusion equipment, its moisture is down to 40% left and right, the percolate squeezing out is processed rear discharge up to standard in addition;
S11: extruding is removed to the house refuse coarse crushing after percolate, for example, be broken into the fragment that particle diameter is less than 120mm;
S12: the house refuse after coarse crushing is carried out to wind-force ragging (selection by winnowing), be divided into lightweight film material and heavier feeds; Lightweight film material fine crushing particle diameter is less than to the fragment of 20mm;
S13: heavier feeds is carried out carrying out fine crushing after a magnetic separation, be broken into the fragment that particle diameter is less than 20mm;
S14: the heavier feeds after fine crushing is dried, control moisture lower than 20%;
S15: the heavier feeds after drying is carried out to secondary selection by winnowing, obtain heavy material in small, broken bits and light material in small, broken bits;
S16: heavy material in small, broken bits is carried out carrying out vibration winnowing after secondary magnetic separation again, obtain the light material of selection by winnowing and selection by winnowing heavy material (inert material), inert material is herein generally the inorganic matters such as sandstone, cement, glass, pottery;
S17: by the lightweight film material of fine crushing, light material in small, broken bits and the light mixing of materials of selection by winnowing, obtain the first fine crushing material;
S18: refrigerator is disassembled to thing and carry out sorting and fragmentation, reject metal and inorganic matter, obtain refrigerator and disassemble the polyurethane foam powder of recovery (the second fine crushing material);
S19: by the first fine crushing material 80% (volume fraction percentage), refrigerator is disassembled the polyurethane foam powder 20% of recovery, and the CaO powder of above-mentioned material gross weight 2%, 0.3% deodorant mix;
S20: by the material compression packing mixing, briquet, or make RDF product with RDF forming machine.
It should be noted that, in the time that the first fine crushing material, the second fine crushing material and adjuvant are mixed, three's mixed proportion can be determined according to actual conditions, for example can determine according to the characteristic of the second fine crushing material (content of heavy metal in other flammable solid discarded object), also can determine according to the characteristic of the first fine crushing material (water content of house refuse or chlorinty), total prerequisite is As soon as possible Promising Policy environmental requirement, accomplish that the garbage derivatived fuel burning after stain of producing is few, and heat energy is high; In addition, in above embodiment, in whole process, also comprise the step of system deodorizing.
Adjuvant in the present invention is except calcium oxide, also just like potassium permanganate class combustion adjuvant, polyvinyl alcohol binding agent etc.Chlorion is changed into calcium chloride by calcium oxide, is deposited in incineration residue, thereby reduces nuisances such as removing in tail gas dioxin even completely, the effect of potassium permanganate is combustion-supporting, utilize potassium permanganate preheating to decompose the performance auxiliary combustion of emitting oxygen, impel RDF burning completely, the interpolation of potassium permanganate can be determined according to the final form of RDF, if RDF is compressed format in bulk, can add less or not add, if RDF is hot pressing bulk or the higher form of granular isodensity, can add a small amount of, for example be less than or equal to 0.5%, for relying on pressure, heating waits material that can not moulding, need to add and not affect RDF combustibility as polyvinyl alcohol, do not increase pollution, the auxiliary RDF moulding of binding agent that price is lower.The using method of binding agent is specially: during polyvinyl alcohol (PVA) is dissolved in to boiling water under stirring condition, make solution, add material to stir according to the ratio of weight of material 5%-15%, pack the material stirring into mould that certain size requires, add suitable pressure forming, treat that moisture evaporation obtains solid RDF particle
The recycling processing method of flammable solid discarded object of the present invention and current household garbage preprocessing process, compare with industrial solid castoff disposal technology, and the present invention has following beneficial effect:
1, this technique is broken to the pretreated object of house refuse and rejects metal and inorganic matter, and process arranges simple and clear.
2, material is carried out in small, broken bits and suitable oven dry (this drying course be specially adapted to have surplus heat utilizable factory), then carry out secondary selection by winnowing, object is effectively to reject the inorganic components such as heavy sandstone, cement, glass, pottery, the secondary raw material that meets RDF moulding that material is broken in small, broken bits.
3, this technique arranges special material mixture process, adds part adjuvant to reach the object of solidifying dangerous component, auxiliary combustion, contaminant restraining discharge, assisting the discarded object of disposing other form according to RDF instructions for use; Utilize not chloride (or chloride low), trade waste that moisture is low to water down chlorine and the moisture in house refuse, utilize house refuse to water down the content of beary metal in trade waste, reach and reduce pretreatment cost and ensure that RDF component is even, the object of stable performance.
4, the object of this technique is house refuse and other discarded object to be made to RDF jointly carry out recovery energy, and RDF forming process technique is wherein different and different according to the final use of RDF from equipment.
It should be noted that this process is open, if needed, process can be added near-infrared sorting unit and carried out sorting and be difficult to chloride group of recycling, obtains the green energy resource product without dioxin.
The above; it is only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (8)
1. the recycling processing method of a flammable solid discarded object, it is characterized in that, described flammable solid discarded object comprises house refuse and other flammable solid discarded object, described other flammable solid discarded object comprises at least one in the industrial residu of resource regeneration process, flammable trade waste and hazardous waste, and described recycling processing method comprises the following steps:
Step 1, by house refuse extrusion dehydration;
Step 2, to dehydration after house refuse carry out coarse crushing;
Step 3, the house refuse after coarse crushing is carried out to selection by winnowing one time, obtain the first light thing and the first weight; Then the first light thing is directly carried out to fine crushing;
Step 4, will after a magnetic separation of the first weight, carry out fine crushing;
Step 5, the first weight of fine crushing is dried, then secondary selection by winnowing, obtains the second light thing and the second weight;
Step 6, the second weight is carried out carrying out vibration winnowing after secondary magnetic separation, obtain the 3rd light thing and the 3rd weight.
Step 7, the first light thing, the second light thing and the 3rd light thing are mixed, obtain the first fine crushing material;
Step 8, other flammable solid discarded object is carried out to sorting and fragmentation, obtain the second fine crushing material;
Step 9, the first fine crushing material, the second fine crushing material and adjuvant are mixed according to a certain percentage, obtain compound;
Step 10, compound is made on forming machine to the garbage derivatived fuel of reservation shape.
2. the recycling processing method of flammable solid discarded object according to claim 1, is characterized in that, also comprises the step that other flammable solid discarded object is dried.
3. the recycling processing method of flammable solid discarded object according to claim 1, is characterized in that, in described drying operation, is less than 30% by the moisture of the material after drying.
4. the recycling processing method of flammable solid discarded object according to claim 1, is characterized in that, also comprises described the 3rd weight as construction material or carries out the step of landfill disposal.
5. according to the recycling processing method of the flammable solid discarded object described in claim 1-4 any one, it is characterized in that, in step 10, according to mass percent, described the first fine crushing material accounts for 65%-85%, the second fine crushing material accounts for 15%-35%, and adjuvant accounts for the 2%-15% of the first fine crushing material and the second fine crushing material summation.
6. the recycling processing method of flammable solid discarded object according to claim 5, is characterized in that, described adjuvant comprises one or more in combustion adjuvant, binding agent and pollutant inhibitor.
7. the recycling processing method of flammable solid discarded object according to claim 6, is characterized in that, described pollutant inhibitor comprises CaO powder.
8. the recycling processing method of flammable solid discarded object according to claim 1, is characterized in that, also comprises the step of system deodorizing.
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Cited By (11)
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| CN104307852A (en) * | 2014-10-20 | 2015-01-28 | 湖南万容科技股份有限公司 | Community-based treatment method of household garbage |
| CN104475429A (en) * | 2014-12-04 | 2015-04-01 | 杭州运邦环保技术有限公司 | Novel medical waste disposal method and novel medical waste disposal device |
| CN105219445A (en) * | 2015-09-21 | 2016-01-06 | 北京神雾环境能源科技集团股份有限公司 | The method of process domestic refuse |
| CN105665421A (en) * | 2016-02-22 | 2016-06-15 | 黎汉东 | Municipal refuse handling method and equipment |
| CN105728444A (en) * | 2016-04-29 | 2016-07-06 | 长沙绿铱环保科技有限公司 | Novel method for household garbage and sludge zero-discharging treatment based on triple sorting |
| CN106216350A (en) * | 2016-07-25 | 2016-12-14 | 贵州毅腾环保科技有限公司 | domestic garbage resource production method |
| CN109465280A (en) * | 2018-12-21 | 2019-03-15 | 中山斯瑞德环保科技有限公司 | Equipment and method for preparing RDF-5 by using paper mill stranded rope |
| CN111872046A (en) * | 2020-07-29 | 2020-11-03 | 山东百川同创能源有限公司 | Household garbage fuel homogenization treatment process, system and application |
| CN112960219A (en) * | 2021-01-12 | 2021-06-15 | 启迪环境科技发展股份有限公司 | Dangerous waste sorting and packaging method |
| CN113028407A (en) * | 2021-03-19 | 2021-06-25 | 曹金超 | Industrial incineration line feeding device |
| CN114632797A (en) * | 2022-03-16 | 2022-06-17 | 金锋馥(滁州)科技股份有限公司 | Comprehensive organic waste subcritical hydrolysis treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104307852A (en) * | 2014-10-20 | 2015-01-28 | 湖南万容科技股份有限公司 | Community-based treatment method of household garbage |
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| CN109465280A (en) * | 2018-12-21 | 2019-03-15 | 中山斯瑞德环保科技有限公司 | Equipment and method for preparing RDF-5 by using paper mill stranded rope |
| CN111872046A (en) * | 2020-07-29 | 2020-11-03 | 山东百川同创能源有限公司 | Household garbage fuel homogenization treatment process, system and application |
| CN112960219A (en) * | 2021-01-12 | 2021-06-15 | 启迪环境科技发展股份有限公司 | Dangerous waste sorting and packaging method |
| CN113028407A (en) * | 2021-03-19 | 2021-06-25 | 曹金超 | Industrial incineration line feeding device |
| CN113028407B (en) * | 2021-03-19 | 2022-12-23 | 宁德市福化环保科技有限公司 | Industrial incineration line feeding device |
| CN114632797A (en) * | 2022-03-16 | 2022-06-17 | 金锋馥(滁州)科技股份有限公司 | Comprehensive organic waste subcritical hydrolysis treatment method |
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